newlib-cygwin/winsup/cygwin/fhandler_fifo.cc

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/* fhandler_fifo.cc - See fhandler.h for a description of the fhandler classes.
* cygwin.din (dup3): Export. (pipe2): Export. * dtable.cc (dtable::dup_worker): Take additional flags parameter. Handle O_CLOEXEC flag. (dtable::dup3): Rename from dup2. Take additional flags parameter. Check for valid flags. Drop check for newfd == oldfd. * dtable.h (dtable::dup_worker): Add flags parameter. (dtable::dup3): Rename from dup2. * fcntl.cc (fcntl64): Add F_DUPFD_CLOEXEC case. * fhandler.h (fhandler_mailslot::get_object_attr): Add flags parameter. * fhandler.cc (fhandler_base::open): Use security attribute with inheritance according to setting of O_CLOEXEC flag. * fhandler_console.cc (fhandler_console::open): Ditto. * fhandler_fifo.cc (sec_user_cloexec): New inline function to create security attribute with inheritance according to setting of O_CLOEXEC flag. (fhandler_fifo::open): Call sec_user_cloexec to fetch security attribute. (fhandler_fifo::wait): Ditto. * fhandler_mem.cc (fhandler_dev_mem::open): Ditto. * fhandler_mailslot.cc (fhandler_mailslot::get_object_attr): Take additional flags parameter. Use security attribute with inheritance according to setting of O_CLOEXEC flag. (fhandler_mailslot::open): Call get_object_attr with flags parameter. * fhandler_registry.cc (fhandler_registry::open): Call set_close_on_exec on real handles to accommodate O_CLOEXEC flag. * fhandler_tty.cc (fhandler_tty_slave::open): Ditto. * fhandler_tape.cc: Create mutex with inheritance according to setting of O_CLOEXEC flag. * pipe.cc: Replace usage of O_NOINHERIT with O_CLOEXEC. (fhandler_pipe::init): Simplify setting close_on_exec flag. (fhandler_pipe::open): Remove setting close_on_exec flag. (fhandler_pipe::create): Use security attribute with inheritance according to setting of O_CLOEXEC flag. (pipe2): New exported function. * posix_ipc.cc: Throughout, open backing files with O_CLOEXEC flag to follow POSIX semantics. * security.h (sec_none_cloexec): New define. * syscalls.cc (dup): Add missing extern "C" qualifier. Accommodate renaming of dtable::dup2 to dtable::dup3. (dup2): Ditto. Check newfd == oldfd here. (dup3): New function. Check newfd == oldfd here. (open): Set close_on_exec flag according to O_CLOEXEC flag before calling fhandler->open. * include/cygwin/version.h (CYGWIN_VERSION_API_MINOR): Bump.
2010-01-15 02:46:02 +08:00
Copyright 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Red Hat, Inc.
This file is part of Cygwin.
This software is a copyrighted work licensed under the terms of the
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
details. */
#include "winsup.h"
#include "miscfuncs.h"
#include "cygerrno.h"
#include "security.h"
#include "path.h"
#include "fhandler.h"
#include "dtable.h"
#include "cygheap.h"
Preliminary change to make fifos/pipes interruptible and fifos reliable. * dtable.cc (dtable::find_fifo): Eliminate definition. * dtable.h (dtable::find_fifo): Ditto for declaration. * fhandler.cc (fhandler_base::raw_read): Remove pipe-specific stuff. (fhandler_base::fhandler_base): Ditto. (fhandler_base::close): Handle overlapped I/O structure if appropriate. (fhandler_base::dup): Ditto. (fhandler_base::fork_fixup): Ditto. (fhandler_base::setup_overlapped): Define new function. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. * fhandler.h (fhandler_base::get_overlapped): Declare new function. (fhandler_base::setup_overlapped): Ditto. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. (fhandler_base::get_guard): Eliminate. (fhandler_pipe::*): Rework to eliminate most Win9x related cruft, removing many variables and defining a new overlapped capability. (fhandler_fifo::*): Ditto. (fifo_state): Declare new enum. * fhandler_fifo.cc (fhandler_fifo::fhandler_fifo): Remove old Win9x stuff. Initialize overlapped handle to NULL. (fhandler_fifo::set_use): Eliminate. (fhandler_fifo::open_nonserver): Define. (fhandler_fifo::open): Rework to use named pipes and overlapped I/O. (fhandler_fifo::wait): Define new function to wait for named pipe connection. (fhandler_fifo::read): Rework to use wait() and new overlapped I/O functionality. (fhandler_fifo::write): Ditto. (fhandler_fifo::dup): Eliminate. * pinfo.cc (commune_process): Remove fifo handling. (_pinfo::commune_request): Ditto. * pinfo.h (picom): Ditto. * pipe.cc (fhandler_pipe::fhandler_pipe): Remove Win9x stuff. Initialize overlapped handle to NULL. (fhandler_pipe::open): Eliminate Win9x stuff. (fhandler_pipe::set_close_on_exec): Eliminate. (read_pipe): Eliminate. (fhandler_pipe::close): Ditto. (fhandler_pipe::fixup_after_exec): Ditto. (fhandler_pipe::fixup_in_child): Ditto. (fhandler_pipe::read): Rework to use overlapped I/O. (fhandler_pipe::write): New function using overlapped I/O. (fhandler_pipe::dup): Rework to eliminate Win9x stuff. (fhandler_pipe::create_selectable): Rework to eliminate Win9x and use overlapped I/O. * select.cc (peek_pipe): Rework to eliminate Win9x stuff and use overlapped I/O. (fhandler_base::ready_for_read): Ditto.
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#include "sigproc.h"
#include "cygtls.h"
* cygprops.h: New file. * dtable.cc (handle_to_fn): Add check for correct installation_key string in object name for pipes and ttys. * external.cc (cygwin_internal): Add CW_GET_INSTKEY to allow fetching the installation_key from cygserver. * fhandler_fifo.cc (fhandler_fifo::fifo_name): Add installation_key to fifo name. * globals.cc: Include cygprops.h. (_RDATA): Move slightly and add comment. (cygwin_props): Define. * mount.cc (mount_info::init): Accommodate the fact that installation_root is now a global variable in DLL common shared memory, rather than a member of cygwin_shared. * pipe.cc (fhandler_pipe::create_selectable): Add installation_key to pipe name. * shared.cc (installation_root): Define here for storage in DLL common shared memory. (installation_key): Ditto. (installation_key_buf): Ditto. (init_installation_root): Convert from shared_info method to ordinary function. Add initializing installation_key. Invalidate installation_key depending of value of disable_key property. Add comment to explain. (get_shared_parent_dir): Add installation_key to directory name. (get_session_parent_dir): Ditto. (shared_info::initialize): Move call to init_installation_root from here... (memory_init): ...to here. Add debug output to print installation root and installation key. Add comment to explain why. * shared_info.h (SHARED_INFO_CB): Recalculate. (CURR_SHARED_MAGIC): Ditto. (class shared_info): Remove definition of installation_root and declaration of init_installation_root. (init_installation_root): Declare. (installation_root): Declare. (installation_key): Declare. * uinfo.cc (pwdgrp::load): Accommodate the fact that installation_root is now a global variable in DLL common shared memory. * include/cygwin/version.h: Bump API minor number. (CYGWIN_INFO_INSTALLATIONS_NAME): Add. * include/sys/cygwin.h (cygwin_getinfo_types): Add CW_GET_INSTKEY.
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#include "shared_info.h"
Preliminary change to make fifos/pipes interruptible and fifos reliable. * dtable.cc (dtable::find_fifo): Eliminate definition. * dtable.h (dtable::find_fifo): Ditto for declaration. * fhandler.cc (fhandler_base::raw_read): Remove pipe-specific stuff. (fhandler_base::fhandler_base): Ditto. (fhandler_base::close): Handle overlapped I/O structure if appropriate. (fhandler_base::dup): Ditto. (fhandler_base::fork_fixup): Ditto. (fhandler_base::setup_overlapped): Define new function. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. * fhandler.h (fhandler_base::get_overlapped): Declare new function. (fhandler_base::setup_overlapped): Ditto. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. (fhandler_base::get_guard): Eliminate. (fhandler_pipe::*): Rework to eliminate most Win9x related cruft, removing many variables and defining a new overlapped capability. (fhandler_fifo::*): Ditto. (fifo_state): Declare new enum. * fhandler_fifo.cc (fhandler_fifo::fhandler_fifo): Remove old Win9x stuff. Initialize overlapped handle to NULL. (fhandler_fifo::set_use): Eliminate. (fhandler_fifo::open_nonserver): Define. (fhandler_fifo::open): Rework to use named pipes and overlapped I/O. (fhandler_fifo::wait): Define new function to wait for named pipe connection. (fhandler_fifo::read): Rework to use wait() and new overlapped I/O functionality. (fhandler_fifo::write): Ditto. (fhandler_fifo::dup): Eliminate. * pinfo.cc (commune_process): Remove fifo handling. (_pinfo::commune_request): Ditto. * pinfo.h (picom): Ditto. * pipe.cc (fhandler_pipe::fhandler_pipe): Remove Win9x stuff. Initialize overlapped handle to NULL. (fhandler_pipe::open): Eliminate Win9x stuff. (fhandler_pipe::set_close_on_exec): Eliminate. (read_pipe): Eliminate. (fhandler_pipe::close): Ditto. (fhandler_pipe::fixup_after_exec): Ditto. (fhandler_pipe::fixup_in_child): Ditto. (fhandler_pipe::read): Rework to use overlapped I/O. (fhandler_pipe::write): New function using overlapped I/O. (fhandler_pipe::dup): Rework to eliminate Win9x stuff. (fhandler_pipe::create_selectable): Rework to eliminate Win9x and use overlapped I/O. * select.cc (peek_pipe): Rework to eliminate Win9x stuff and use overlapped I/O. (fhandler_base::ready_for_read): Ditto.
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fhandler_fifo::fhandler_fifo ():
fhandler_base_overlapped (), wait_state (fifo_unknown), dummy_client (NULL)
{
Preliminary change to make fifos/pipes interruptible and fifos reliable. * dtable.cc (dtable::find_fifo): Eliminate definition. * dtable.h (dtable::find_fifo): Ditto for declaration. * fhandler.cc (fhandler_base::raw_read): Remove pipe-specific stuff. (fhandler_base::fhandler_base): Ditto. (fhandler_base::close): Handle overlapped I/O structure if appropriate. (fhandler_base::dup): Ditto. (fhandler_base::fork_fixup): Ditto. (fhandler_base::setup_overlapped): Define new function. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. * fhandler.h (fhandler_base::get_overlapped): Declare new function. (fhandler_base::setup_overlapped): Ditto. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. (fhandler_base::get_guard): Eliminate. (fhandler_pipe::*): Rework to eliminate most Win9x related cruft, removing many variables and defining a new overlapped capability. (fhandler_fifo::*): Ditto. (fifo_state): Declare new enum. * fhandler_fifo.cc (fhandler_fifo::fhandler_fifo): Remove old Win9x stuff. Initialize overlapped handle to NULL. (fhandler_fifo::set_use): Eliminate. (fhandler_fifo::open_nonserver): Define. (fhandler_fifo::open): Rework to use named pipes and overlapped I/O. (fhandler_fifo::wait): Define new function to wait for named pipe connection. (fhandler_fifo::read): Rework to use wait() and new overlapped I/O functionality. (fhandler_fifo::write): Ditto. (fhandler_fifo::dup): Eliminate. * pinfo.cc (commune_process): Remove fifo handling. (_pinfo::commune_request): Ditto. * pinfo.h (picom): Ditto. * pipe.cc (fhandler_pipe::fhandler_pipe): Remove Win9x stuff. Initialize overlapped handle to NULL. (fhandler_pipe::open): Eliminate Win9x stuff. (fhandler_pipe::set_close_on_exec): Eliminate. (read_pipe): Eliminate. (fhandler_pipe::close): Ditto. (fhandler_pipe::fixup_after_exec): Ditto. (fhandler_pipe::fixup_in_child): Ditto. (fhandler_pipe::read): Rework to use overlapped I/O. (fhandler_pipe::write): New function using overlapped I/O. (fhandler_pipe::dup): Rework to eliminate Win9x stuff. (fhandler_pipe::create_selectable): Rework to eliminate Win9x and use overlapped I/O. * select.cc (peek_pipe): Rework to eliminate Win9x stuff and use overlapped I/O. (fhandler_base::ready_for_read): Ditto.
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need_fork_fixup (true);
}
Preliminary change to make fifos/pipes interruptible and fifos reliable. * dtable.cc (dtable::find_fifo): Eliminate definition. * dtable.h (dtable::find_fifo): Ditto for declaration. * fhandler.cc (fhandler_base::raw_read): Remove pipe-specific stuff. (fhandler_base::fhandler_base): Ditto. (fhandler_base::close): Handle overlapped I/O structure if appropriate. (fhandler_base::dup): Ditto. (fhandler_base::fork_fixup): Ditto. (fhandler_base::setup_overlapped): Define new function. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. * fhandler.h (fhandler_base::get_overlapped): Declare new function. (fhandler_base::setup_overlapped): Ditto. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. (fhandler_base::get_guard): Eliminate. (fhandler_pipe::*): Rework to eliminate most Win9x related cruft, removing many variables and defining a new overlapped capability. (fhandler_fifo::*): Ditto. (fifo_state): Declare new enum. * fhandler_fifo.cc (fhandler_fifo::fhandler_fifo): Remove old Win9x stuff. Initialize overlapped handle to NULL. (fhandler_fifo::set_use): Eliminate. (fhandler_fifo::open_nonserver): Define. (fhandler_fifo::open): Rework to use named pipes and overlapped I/O. (fhandler_fifo::wait): Define new function to wait for named pipe connection. (fhandler_fifo::read): Rework to use wait() and new overlapped I/O functionality. (fhandler_fifo::write): Ditto. (fhandler_fifo::dup): Eliminate. * pinfo.cc (commune_process): Remove fifo handling. (_pinfo::commune_request): Ditto. * pinfo.h (picom): Ditto. * pipe.cc (fhandler_pipe::fhandler_pipe): Remove Win9x stuff. Initialize overlapped handle to NULL. (fhandler_pipe::open): Eliminate Win9x stuff. (fhandler_pipe::set_close_on_exec): Eliminate. (read_pipe): Eliminate. (fhandler_pipe::close): Ditto. (fhandler_pipe::fixup_after_exec): Ditto. (fhandler_pipe::fixup_in_child): Ditto. (fhandler_pipe::read): Rework to use overlapped I/O. (fhandler_pipe::write): New function using overlapped I/O. (fhandler_pipe::dup): Rework to eliminate Win9x stuff. (fhandler_pipe::create_selectable): Rework to eliminate Win9x and use overlapped I/O. * select.cc (peek_pipe): Rework to eliminate Win9x stuff and use overlapped I/O. (fhandler_base::ready_for_read): Ditto.
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HANDLE
fhandler_fifo::open_nonserver (const char *npname, unsigned low_flags,
LPSECURITY_ATTRIBUTES sa_buf)
{
Preliminary change to make fifos/pipes interruptible and fifos reliable. * dtable.cc (dtable::find_fifo): Eliminate definition. * dtable.h (dtable::find_fifo): Ditto for declaration. * fhandler.cc (fhandler_base::raw_read): Remove pipe-specific stuff. (fhandler_base::fhandler_base): Ditto. (fhandler_base::close): Handle overlapped I/O structure if appropriate. (fhandler_base::dup): Ditto. (fhandler_base::fork_fixup): Ditto. (fhandler_base::setup_overlapped): Define new function. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. * fhandler.h (fhandler_base::get_overlapped): Declare new function. (fhandler_base::setup_overlapped): Ditto. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. (fhandler_base::get_guard): Eliminate. (fhandler_pipe::*): Rework to eliminate most Win9x related cruft, removing many variables and defining a new overlapped capability. (fhandler_fifo::*): Ditto. (fifo_state): Declare new enum. * fhandler_fifo.cc (fhandler_fifo::fhandler_fifo): Remove old Win9x stuff. Initialize overlapped handle to NULL. (fhandler_fifo::set_use): Eliminate. (fhandler_fifo::open_nonserver): Define. (fhandler_fifo::open): Rework to use named pipes and overlapped I/O. (fhandler_fifo::wait): Define new function to wait for named pipe connection. (fhandler_fifo::read): Rework to use wait() and new overlapped I/O functionality. (fhandler_fifo::write): Ditto. (fhandler_fifo::dup): Eliminate. * pinfo.cc (commune_process): Remove fifo handling. (_pinfo::commune_request): Ditto. * pinfo.h (picom): Ditto. * pipe.cc (fhandler_pipe::fhandler_pipe): Remove Win9x stuff. Initialize overlapped handle to NULL. (fhandler_pipe::open): Eliminate Win9x stuff. (fhandler_pipe::set_close_on_exec): Eliminate. (read_pipe): Eliminate. (fhandler_pipe::close): Ditto. (fhandler_pipe::fixup_after_exec): Ditto. (fhandler_pipe::fixup_in_child): Ditto. (fhandler_pipe::read): Rework to use overlapped I/O. (fhandler_pipe::write): New function using overlapped I/O. (fhandler_pipe::dup): Rework to eliminate Win9x stuff. (fhandler_pipe::create_selectable): Rework to eliminate Win9x and use overlapped I/O. * select.cc (peek_pipe): Rework to eliminate Win9x stuff and use overlapped I/O. (fhandler_base::ready_for_read): Ditto.
2007-07-08 01:00:33 +08:00
DWORD mode = 0;
if (low_flags == O_RDONLY)
mode = GENERIC_READ;
* cygheap.cc (creturn): Reorganize to avoid a new compiler warning/error. * dtable.cc (handle_to_fn): Ditto. * fhandler_console.cc (fhandler_console::read): Ditto. (fhandler_console::scroll_screen): Ditto. (dev_console::set_color): Ditto. * fhandler_dsp.cc (fhandler_dev_dsp::write): Ditto. (fhandler_dev_dsp::read): Ditto. * fhandler_tape.cc (mtinfo_drive::get_status): Ditto. * hookapi.cc (find_first_notloaded_dll): Ditto. * mmap.cc (msync): Ditto. * pipe.cc (pipesync::pipesync): Ditto. * sec_acl.cc (getace): Ditto. * sec_auth.cc (create_token): Ditto. (lsaauth): Ditto. * select.cc (peek_pipe): Ditto. * spawn.cc (av::fixup): Ditto. * syscalls.cc (popen): Ditto. * tty.cc (tty::init_session): Ditto. * uinfo.cc (pwdgrp::load): Ditto. * fhandler.cc (fhandler_base::setup_overlapped): Ditto. (fhandler_base::wait_overlapped): Rename second use of res variable to wres or errors are not returned correctly. * dcrt0.cc: Remove obsolete variable. * dll_init.cc (release_upto): Fix typo involving incorrect use of '|'. * fhandler_disk_file.cc (fhandler_base::fstat_by_handle): Avoid a compiler warning regarding coercing type-punned variables. (fhandler_base::fstat_by_name): Ditto. fhandler_fifo.cc (fhandler_fifo::open_nonserver): Fix = vs. == typo. (fhandler_fifo::wait): Add all conditions to switch statement to avoid a compiler warning. * fhandler_process.cc: Avoid unneeded initialization of variables to zero. (fhandler_socket::listen): Add braces around initializer. * flock.cc (inode_t::get_all_locks_list): Reorganize to avoid a compiler warning. Fix problem with EWOULDBLOCK error return. * path.cc (GUID_shortcut): Use braces around struct initializer. (cygwin_conv_path): Reorganize to avoid a compiler warning. * random.cc (dummy): Mark variable as volatile to avoid a "used uninitialized" warning. * libc/getopt.c: Mark some variables as dllexport although gcc doesn't seem to do the right thing with them. * libc/minires-os-if.c (get_registry_dns_items): Coerce some function arguments to avoid a compiler warning.
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else if (low_flags == O_WRONLY)
Preliminary change to make fifos/pipes interruptible and fifos reliable. * dtable.cc (dtable::find_fifo): Eliminate definition. * dtable.h (dtable::find_fifo): Ditto for declaration. * fhandler.cc (fhandler_base::raw_read): Remove pipe-specific stuff. (fhandler_base::fhandler_base): Ditto. (fhandler_base::close): Handle overlapped I/O structure if appropriate. (fhandler_base::dup): Ditto. (fhandler_base::fork_fixup): Ditto. (fhandler_base::setup_overlapped): Define new function. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. * fhandler.h (fhandler_base::get_overlapped): Declare new function. (fhandler_base::setup_overlapped): Ditto. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. (fhandler_base::get_guard): Eliminate. (fhandler_pipe::*): Rework to eliminate most Win9x related cruft, removing many variables and defining a new overlapped capability. (fhandler_fifo::*): Ditto. (fifo_state): Declare new enum. * fhandler_fifo.cc (fhandler_fifo::fhandler_fifo): Remove old Win9x stuff. Initialize overlapped handle to NULL. (fhandler_fifo::set_use): Eliminate. (fhandler_fifo::open_nonserver): Define. (fhandler_fifo::open): Rework to use named pipes and overlapped I/O. (fhandler_fifo::wait): Define new function to wait for named pipe connection. (fhandler_fifo::read): Rework to use wait() and new overlapped I/O functionality. (fhandler_fifo::write): Ditto. (fhandler_fifo::dup): Eliminate. * pinfo.cc (commune_process): Remove fifo handling. (_pinfo::commune_request): Ditto. * pinfo.h (picom): Ditto. * pipe.cc (fhandler_pipe::fhandler_pipe): Remove Win9x stuff. Initialize overlapped handle to NULL. (fhandler_pipe::open): Eliminate Win9x stuff. (fhandler_pipe::set_close_on_exec): Eliminate. (read_pipe): Eliminate. (fhandler_pipe::close): Ditto. (fhandler_pipe::fixup_after_exec): Ditto. (fhandler_pipe::fixup_in_child): Ditto. (fhandler_pipe::read): Rework to use overlapped I/O. (fhandler_pipe::write): New function using overlapped I/O. (fhandler_pipe::dup): Rework to eliminate Win9x stuff. (fhandler_pipe::create_selectable): Rework to eliminate Win9x and use overlapped I/O. * select.cc (peek_pipe): Rework to eliminate Win9x stuff and use overlapped I/O. (fhandler_base::ready_for_read): Ditto.
2007-07-08 01:00:33 +08:00
mode = GENERIC_WRITE;
else
Preliminary change to make fifos/pipes interruptible and fifos reliable. * dtable.cc (dtable::find_fifo): Eliminate definition. * dtable.h (dtable::find_fifo): Ditto for declaration. * fhandler.cc (fhandler_base::raw_read): Remove pipe-specific stuff. (fhandler_base::fhandler_base): Ditto. (fhandler_base::close): Handle overlapped I/O structure if appropriate. (fhandler_base::dup): Ditto. (fhandler_base::fork_fixup): Ditto. (fhandler_base::setup_overlapped): Define new function. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. * fhandler.h (fhandler_base::get_overlapped): Declare new function. (fhandler_base::setup_overlapped): Ditto. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. (fhandler_base::get_guard): Eliminate. (fhandler_pipe::*): Rework to eliminate most Win9x related cruft, removing many variables and defining a new overlapped capability. (fhandler_fifo::*): Ditto. (fifo_state): Declare new enum. * fhandler_fifo.cc (fhandler_fifo::fhandler_fifo): Remove old Win9x stuff. Initialize overlapped handle to NULL. (fhandler_fifo::set_use): Eliminate. (fhandler_fifo::open_nonserver): Define. (fhandler_fifo::open): Rework to use named pipes and overlapped I/O. (fhandler_fifo::wait): Define new function to wait for named pipe connection. (fhandler_fifo::read): Rework to use wait() and new overlapped I/O functionality. (fhandler_fifo::write): Ditto. (fhandler_fifo::dup): Eliminate. * pinfo.cc (commune_process): Remove fifo handling. (_pinfo::commune_request): Ditto. * pinfo.h (picom): Ditto. * pipe.cc (fhandler_pipe::fhandler_pipe): Remove Win9x stuff. Initialize overlapped handle to NULL. (fhandler_pipe::open): Eliminate Win9x stuff. (fhandler_pipe::set_close_on_exec): Eliminate. (read_pipe): Eliminate. (fhandler_pipe::close): Ditto. (fhandler_pipe::fixup_after_exec): Ditto. (fhandler_pipe::fixup_in_child): Ditto. (fhandler_pipe::read): Rework to use overlapped I/O. (fhandler_pipe::write): New function using overlapped I/O. (fhandler_pipe::dup): Rework to eliminate Win9x stuff. (fhandler_pipe::create_selectable): Rework to eliminate Win9x and use overlapped I/O. * select.cc (peek_pipe): Rework to eliminate Win9x stuff and use overlapped I/O. (fhandler_base::ready_for_read): Ditto.
2007-07-08 01:00:33 +08:00
mode = GENERIC_READ | GENERIC_WRITE;
while (1)
{
Preliminary change to make fifos/pipes interruptible and fifos reliable. * dtable.cc (dtable::find_fifo): Eliminate definition. * dtable.h (dtable::find_fifo): Ditto for declaration. * fhandler.cc (fhandler_base::raw_read): Remove pipe-specific stuff. (fhandler_base::fhandler_base): Ditto. (fhandler_base::close): Handle overlapped I/O structure if appropriate. (fhandler_base::dup): Ditto. (fhandler_base::fork_fixup): Ditto. (fhandler_base::setup_overlapped): Define new function. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. * fhandler.h (fhandler_base::get_overlapped): Declare new function. (fhandler_base::setup_overlapped): Ditto. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. (fhandler_base::get_guard): Eliminate. (fhandler_pipe::*): Rework to eliminate most Win9x related cruft, removing many variables and defining a new overlapped capability. (fhandler_fifo::*): Ditto. (fifo_state): Declare new enum. * fhandler_fifo.cc (fhandler_fifo::fhandler_fifo): Remove old Win9x stuff. Initialize overlapped handle to NULL. (fhandler_fifo::set_use): Eliminate. (fhandler_fifo::open_nonserver): Define. (fhandler_fifo::open): Rework to use named pipes and overlapped I/O. (fhandler_fifo::wait): Define new function to wait for named pipe connection. (fhandler_fifo::read): Rework to use wait() and new overlapped I/O functionality. (fhandler_fifo::write): Ditto. (fhandler_fifo::dup): Eliminate. * pinfo.cc (commune_process): Remove fifo handling. (_pinfo::commune_request): Ditto. * pinfo.h (picom): Ditto. * pipe.cc (fhandler_pipe::fhandler_pipe): Remove Win9x stuff. Initialize overlapped handle to NULL. (fhandler_pipe::open): Eliminate Win9x stuff. (fhandler_pipe::set_close_on_exec): Eliminate. (read_pipe): Eliminate. (fhandler_pipe::close): Ditto. (fhandler_pipe::fixup_after_exec): Ditto. (fhandler_pipe::fixup_in_child): Ditto. (fhandler_pipe::read): Rework to use overlapped I/O. (fhandler_pipe::write): New function using overlapped I/O. (fhandler_pipe::dup): Rework to eliminate Win9x stuff. (fhandler_pipe::create_selectable): Rework to eliminate Win9x and use overlapped I/O. * select.cc (peek_pipe): Rework to eliminate Win9x stuff and use overlapped I/O. (fhandler_base::ready_for_read): Ditto.
2007-07-08 01:00:33 +08:00
HANDLE h = CreateFile (npname, mode, 0, sa_buf, OPEN_EXISTING,
FILE_FLAG_OVERLAPPED, NULL);
if (h != INVALID_HANDLE_VALUE || GetLastError () != ERROR_PIPE_NOT_CONNECTED)
return h;
if (&_my_tls != _main_tls)
yield ();
Preliminary change to make fifos/pipes interruptible and fifos reliable. * dtable.cc (dtable::find_fifo): Eliminate definition. * dtable.h (dtable::find_fifo): Ditto for declaration. * fhandler.cc (fhandler_base::raw_read): Remove pipe-specific stuff. (fhandler_base::fhandler_base): Ditto. (fhandler_base::close): Handle overlapped I/O structure if appropriate. (fhandler_base::dup): Ditto. (fhandler_base::fork_fixup): Ditto. (fhandler_base::setup_overlapped): Define new function. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. * fhandler.h (fhandler_base::get_overlapped): Declare new function. (fhandler_base::setup_overlapped): Ditto. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. (fhandler_base::get_guard): Eliminate. (fhandler_pipe::*): Rework to eliminate most Win9x related cruft, removing many variables and defining a new overlapped capability. (fhandler_fifo::*): Ditto. (fifo_state): Declare new enum. * fhandler_fifo.cc (fhandler_fifo::fhandler_fifo): Remove old Win9x stuff. Initialize overlapped handle to NULL. (fhandler_fifo::set_use): Eliminate. (fhandler_fifo::open_nonserver): Define. (fhandler_fifo::open): Rework to use named pipes and overlapped I/O. (fhandler_fifo::wait): Define new function to wait for named pipe connection. (fhandler_fifo::read): Rework to use wait() and new overlapped I/O functionality. (fhandler_fifo::write): Ditto. (fhandler_fifo::dup): Eliminate. * pinfo.cc (commune_process): Remove fifo handling. (_pinfo::commune_request): Ditto. * pinfo.h (picom): Ditto. * pipe.cc (fhandler_pipe::fhandler_pipe): Remove Win9x stuff. Initialize overlapped handle to NULL. (fhandler_pipe::open): Eliminate Win9x stuff. (fhandler_pipe::set_close_on_exec): Eliminate. (read_pipe): Eliminate. (fhandler_pipe::close): Ditto. (fhandler_pipe::fixup_after_exec): Ditto. (fhandler_pipe::fixup_in_child): Ditto. (fhandler_pipe::read): Rework to use overlapped I/O. (fhandler_pipe::write): New function using overlapped I/O. (fhandler_pipe::dup): Rework to eliminate Win9x stuff. (fhandler_pipe::create_selectable): Rework to eliminate Win9x and use overlapped I/O. * select.cc (peek_pipe): Rework to eliminate Win9x stuff and use overlapped I/O. (fhandler_base::ready_for_read): Ditto.
2007-07-08 01:00:33 +08:00
else if (WaitForSingleObject (signal_arrived, 0) == WAIT_OBJECT_0)
{
Preliminary change to make fifos/pipes interruptible and fifos reliable. * dtable.cc (dtable::find_fifo): Eliminate definition. * dtable.h (dtable::find_fifo): Ditto for declaration. * fhandler.cc (fhandler_base::raw_read): Remove pipe-specific stuff. (fhandler_base::fhandler_base): Ditto. (fhandler_base::close): Handle overlapped I/O structure if appropriate. (fhandler_base::dup): Ditto. (fhandler_base::fork_fixup): Ditto. (fhandler_base::setup_overlapped): Define new function. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. * fhandler.h (fhandler_base::get_overlapped): Declare new function. (fhandler_base::setup_overlapped): Ditto. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. (fhandler_base::get_guard): Eliminate. (fhandler_pipe::*): Rework to eliminate most Win9x related cruft, removing many variables and defining a new overlapped capability. (fhandler_fifo::*): Ditto. (fifo_state): Declare new enum. * fhandler_fifo.cc (fhandler_fifo::fhandler_fifo): Remove old Win9x stuff. Initialize overlapped handle to NULL. (fhandler_fifo::set_use): Eliminate. (fhandler_fifo::open_nonserver): Define. (fhandler_fifo::open): Rework to use named pipes and overlapped I/O. (fhandler_fifo::wait): Define new function to wait for named pipe connection. (fhandler_fifo::read): Rework to use wait() and new overlapped I/O functionality. (fhandler_fifo::write): Ditto. (fhandler_fifo::dup): Eliminate. * pinfo.cc (commune_process): Remove fifo handling. (_pinfo::commune_request): Ditto. * pinfo.h (picom): Ditto. * pipe.cc (fhandler_pipe::fhandler_pipe): Remove Win9x stuff. Initialize overlapped handle to NULL. (fhandler_pipe::open): Eliminate Win9x stuff. (fhandler_pipe::set_close_on_exec): Eliminate. (read_pipe): Eliminate. (fhandler_pipe::close): Ditto. (fhandler_pipe::fixup_after_exec): Ditto. (fhandler_pipe::fixup_in_child): Ditto. (fhandler_pipe::read): Rework to use overlapped I/O. (fhandler_pipe::write): New function using overlapped I/O. (fhandler_pipe::dup): Rework to eliminate Win9x stuff. (fhandler_pipe::create_selectable): Rework to eliminate Win9x and use overlapped I/O. * select.cc (peek_pipe): Rework to eliminate Win9x stuff and use overlapped I/O. (fhandler_base::ready_for_read): Ditto.
2007-07-08 01:00:33 +08:00
set_errno (EINTR);
return NULL;
}
}
}
* sigproc.h (wait_for_sigthread): Eliminate parameter. * sigproc.cc (wait_for_sigthread): Ditto. Don't synchronize with wait_sig after receiving an event that it is ready to go. (init_sig_pipe): New function. (wait_sig): Call init_sig_pipe to create pipes for communicating signals to this process. Don't send sigCONT signal when initializing. * fork.cc (frok::child): Accommodate wait_for_sigpipe parameter change. * fhandler.h (fhandler_*::write): Make ssize_t/__stdcall. (fhandler_*::write_overlapped): Ditto. (fhandler_*::raw_write): Ditto. (fhandler_*::readv): Ditto. (fhandler_*::writev): Ditto. (fhandler_*::raw_read): Make __stdcall. * fhandler: Accommodate changes to read/write functions throughout. * fhandler_clipboard.cc: Ditto. * fhandler_console.cc: Ditto. * fhandler_dsp.cc: Ditto. * fhandler_fifo.cc: Ditto. * fhandler_mailslot.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_random.cc: Ditto. * fhandler_tape.cc: Ditto. * fhandler_tty.cc: Ditto. * fhandler_virtual.cc: Ditto. * fhandler_windows.cc: Ditto. * fhandler_zero.cc: Ditto. * syscalls.cc (readv): Use ssize_t as temp variable. * fhandler.cc (fhandler_base::read): Coerce returned len to signed or it will never be treated as < 0. (fhandler_base::wait_overlapped): Minimize calls to GetLastError. Remove duplicate debugging test. Fix error return. * fhandler.h (fhandler_fifo::fifo_name): Declare new function. (fhandler_fifo::close): Ditto. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto. * fhandler.cc (fhandler_fifo::fifo_name): Define new function. (FIFO_BUF_SIZE): New define. (cnp): Ditto. (fhandler_fifo::open): Rework. Use cnp to open named pipe. Always open write side as a client. Open dummy client when writing and can't connect. (wait): Rework. Implement fifo_wait_for_next_client. Handle signals during connect better. Add new fifo_wait_for_server code which polls (sigh) waiting for server. (fhandler_fifo::raw_read): Handle transition states when one client closes and another is available. (fhandler_fifo::close): Define. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto.
2009-07-25 04:54:33 +08:00
char *
fhandler_fifo::fifo_name (char *buf)
{
/* Generate a semi-unique name to associate with this fifo. */
* cygprops.h: New file. * dtable.cc (handle_to_fn): Add check for correct installation_key string in object name for pipes and ttys. * external.cc (cygwin_internal): Add CW_GET_INSTKEY to allow fetching the installation_key from cygserver. * fhandler_fifo.cc (fhandler_fifo::fifo_name): Add installation_key to fifo name. * globals.cc: Include cygprops.h. (_RDATA): Move slightly and add comment. (cygwin_props): Define. * mount.cc (mount_info::init): Accommodate the fact that installation_root is now a global variable in DLL common shared memory, rather than a member of cygwin_shared. * pipe.cc (fhandler_pipe::create_selectable): Add installation_key to pipe name. * shared.cc (installation_root): Define here for storage in DLL common shared memory. (installation_key): Ditto. (installation_key_buf): Ditto. (init_installation_root): Convert from shared_info method to ordinary function. Add initializing installation_key. Invalidate installation_key depending of value of disable_key property. Add comment to explain. (get_shared_parent_dir): Add installation_key to directory name. (get_session_parent_dir): Ditto. (shared_info::initialize): Move call to init_installation_root from here... (memory_init): ...to here. Add debug output to print installation root and installation key. Add comment to explain why. * shared_info.h (SHARED_INFO_CB): Recalculate. (CURR_SHARED_MAGIC): Ditto. (class shared_info): Remove definition of installation_root and declaration of init_installation_root. (init_installation_root): Declare. (installation_root): Declare. (installation_key): Declare. * uinfo.cc (pwdgrp::load): Accommodate the fact that installation_root is now a global variable in DLL common shared memory. * include/cygwin/version.h: Bump API minor number. (CYGWIN_INFO_INSTALLATIONS_NAME): Add. * include/sys/cygwin.h (cygwin_getinfo_types): Add CW_GET_INSTKEY.
2009-10-31 21:24:06 +08:00
__small_sprintf (buf, "\\\\.\\pipe\\__cygfifo__%S_%08x_%016X",
&installation_key, get_dev (), get_ino ());
* sigproc.h (wait_for_sigthread): Eliminate parameter. * sigproc.cc (wait_for_sigthread): Ditto. Don't synchronize with wait_sig after receiving an event that it is ready to go. (init_sig_pipe): New function. (wait_sig): Call init_sig_pipe to create pipes for communicating signals to this process. Don't send sigCONT signal when initializing. * fork.cc (frok::child): Accommodate wait_for_sigpipe parameter change. * fhandler.h (fhandler_*::write): Make ssize_t/__stdcall. (fhandler_*::write_overlapped): Ditto. (fhandler_*::raw_write): Ditto. (fhandler_*::readv): Ditto. (fhandler_*::writev): Ditto. (fhandler_*::raw_read): Make __stdcall. * fhandler: Accommodate changes to read/write functions throughout. * fhandler_clipboard.cc: Ditto. * fhandler_console.cc: Ditto. * fhandler_dsp.cc: Ditto. * fhandler_fifo.cc: Ditto. * fhandler_mailslot.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_random.cc: Ditto. * fhandler_tape.cc: Ditto. * fhandler_tty.cc: Ditto. * fhandler_virtual.cc: Ditto. * fhandler_windows.cc: Ditto. * fhandler_zero.cc: Ditto. * syscalls.cc (readv): Use ssize_t as temp variable. * fhandler.cc (fhandler_base::read): Coerce returned len to signed or it will never be treated as < 0. (fhandler_base::wait_overlapped): Minimize calls to GetLastError. Remove duplicate debugging test. Fix error return. * fhandler.h (fhandler_fifo::fifo_name): Declare new function. (fhandler_fifo::close): Ditto. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto. * fhandler.cc (fhandler_fifo::fifo_name): Define new function. (FIFO_BUF_SIZE): New define. (cnp): Ditto. (fhandler_fifo::open): Rework. Use cnp to open named pipe. Always open write side as a client. Open dummy client when writing and can't connect. (wait): Rework. Implement fifo_wait_for_next_client. Handle signals during connect better. Add new fifo_wait_for_server code which polls (sigh) waiting for server. (fhandler_fifo::raw_read): Handle transition states when one client closes and another is available. (fhandler_fifo::close): Define. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto.
2009-07-25 04:54:33 +08:00
return buf;
}
Preliminary change to make fifos/pipes interruptible and fifos reliable. * dtable.cc (dtable::find_fifo): Eliminate definition. * dtable.h (dtable::find_fifo): Ditto for declaration. * fhandler.cc (fhandler_base::raw_read): Remove pipe-specific stuff. (fhandler_base::fhandler_base): Ditto. (fhandler_base::close): Handle overlapped I/O structure if appropriate. (fhandler_base::dup): Ditto. (fhandler_base::fork_fixup): Ditto. (fhandler_base::setup_overlapped): Define new function. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. * fhandler.h (fhandler_base::get_overlapped): Declare new function. (fhandler_base::setup_overlapped): Ditto. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. (fhandler_base::get_guard): Eliminate. (fhandler_pipe::*): Rework to eliminate most Win9x related cruft, removing many variables and defining a new overlapped capability. (fhandler_fifo::*): Ditto. (fifo_state): Declare new enum. * fhandler_fifo.cc (fhandler_fifo::fhandler_fifo): Remove old Win9x stuff. Initialize overlapped handle to NULL. (fhandler_fifo::set_use): Eliminate. (fhandler_fifo::open_nonserver): Define. (fhandler_fifo::open): Rework to use named pipes and overlapped I/O. (fhandler_fifo::wait): Define new function to wait for named pipe connection. (fhandler_fifo::read): Rework to use wait() and new overlapped I/O functionality. (fhandler_fifo::write): Ditto. (fhandler_fifo::dup): Eliminate. * pinfo.cc (commune_process): Remove fifo handling. (_pinfo::commune_request): Ditto. * pinfo.h (picom): Ditto. * pipe.cc (fhandler_pipe::fhandler_pipe): Remove Win9x stuff. Initialize overlapped handle to NULL. (fhandler_pipe::open): Eliminate Win9x stuff. (fhandler_pipe::set_close_on_exec): Eliminate. (read_pipe): Eliminate. (fhandler_pipe::close): Ditto. (fhandler_pipe::fixup_after_exec): Ditto. (fhandler_pipe::fixup_in_child): Ditto. (fhandler_pipe::read): Rework to use overlapped I/O. (fhandler_pipe::write): New function using overlapped I/O. (fhandler_pipe::dup): Rework to eliminate Win9x stuff. (fhandler_pipe::create_selectable): Rework to eliminate Win9x and use overlapped I/O. * select.cc (peek_pipe): Rework to eliminate Win9x stuff and use overlapped I/O. (fhandler_base::ready_for_read): Ditto.
2007-07-08 01:00:33 +08:00
#define FIFO_PIPE_MODE (PIPE_TYPE_BYTE | PIPE_READMODE_BYTE)
* sigproc.h (wait_for_sigthread): Eliminate parameter. * sigproc.cc (wait_for_sigthread): Ditto. Don't synchronize with wait_sig after receiving an event that it is ready to go. (init_sig_pipe): New function. (wait_sig): Call init_sig_pipe to create pipes for communicating signals to this process. Don't send sigCONT signal when initializing. * fork.cc (frok::child): Accommodate wait_for_sigpipe parameter change. * fhandler.h (fhandler_*::write): Make ssize_t/__stdcall. (fhandler_*::write_overlapped): Ditto. (fhandler_*::raw_write): Ditto. (fhandler_*::readv): Ditto. (fhandler_*::writev): Ditto. (fhandler_*::raw_read): Make __stdcall. * fhandler: Accommodate changes to read/write functions throughout. * fhandler_clipboard.cc: Ditto. * fhandler_console.cc: Ditto. * fhandler_dsp.cc: Ditto. * fhandler_fifo.cc: Ditto. * fhandler_mailslot.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_random.cc: Ditto. * fhandler_tape.cc: Ditto. * fhandler_tty.cc: Ditto. * fhandler_virtual.cc: Ditto. * fhandler_windows.cc: Ditto. * fhandler_zero.cc: Ditto. * syscalls.cc (readv): Use ssize_t as temp variable. * fhandler.cc (fhandler_base::read): Coerce returned len to signed or it will never be treated as < 0. (fhandler_base::wait_overlapped): Minimize calls to GetLastError. Remove duplicate debugging test. Fix error return. * fhandler.h (fhandler_fifo::fifo_name): Declare new function. (fhandler_fifo::close): Ditto. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto. * fhandler.cc (fhandler_fifo::fifo_name): Define new function. (FIFO_BUF_SIZE): New define. (cnp): Ditto. (fhandler_fifo::open): Rework. Use cnp to open named pipe. Always open write side as a client. Open dummy client when writing and can't connect. (wait): Rework. Implement fifo_wait_for_next_client. Handle signals during connect better. Add new fifo_wait_for_server code which polls (sigh) waiting for server. (fhandler_fifo::raw_read): Handle transition states when one client closes and another is available. (fhandler_fifo::close): Define. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto.
2009-07-25 04:54:33 +08:00
#define FIFO_BUF_SIZE 4096
#define cnp(m, s) CreateNamedPipe(npname, (m), FIFO_PIPE_MODE, \
PIPE_UNLIMITED_INSTANCES, (s), (s), \
NMPWAIT_WAIT_FOREVER, sa_buf)
* cygwin.din (dup3): Export. (pipe2): Export. * dtable.cc (dtable::dup_worker): Take additional flags parameter. Handle O_CLOEXEC flag. (dtable::dup3): Rename from dup2. Take additional flags parameter. Check for valid flags. Drop check for newfd == oldfd. * dtable.h (dtable::dup_worker): Add flags parameter. (dtable::dup3): Rename from dup2. * fcntl.cc (fcntl64): Add F_DUPFD_CLOEXEC case. * fhandler.h (fhandler_mailslot::get_object_attr): Add flags parameter. * fhandler.cc (fhandler_base::open): Use security attribute with inheritance according to setting of O_CLOEXEC flag. * fhandler_console.cc (fhandler_console::open): Ditto. * fhandler_fifo.cc (sec_user_cloexec): New inline function to create security attribute with inheritance according to setting of O_CLOEXEC flag. (fhandler_fifo::open): Call sec_user_cloexec to fetch security attribute. (fhandler_fifo::wait): Ditto. * fhandler_mem.cc (fhandler_dev_mem::open): Ditto. * fhandler_mailslot.cc (fhandler_mailslot::get_object_attr): Take additional flags parameter. Use security attribute with inheritance according to setting of O_CLOEXEC flag. (fhandler_mailslot::open): Call get_object_attr with flags parameter. * fhandler_registry.cc (fhandler_registry::open): Call set_close_on_exec on real handles to accommodate O_CLOEXEC flag. * fhandler_tty.cc (fhandler_tty_slave::open): Ditto. * fhandler_tape.cc: Create mutex with inheritance according to setting of O_CLOEXEC flag. * pipe.cc: Replace usage of O_NOINHERIT with O_CLOEXEC. (fhandler_pipe::init): Simplify setting close_on_exec flag. (fhandler_pipe::open): Remove setting close_on_exec flag. (fhandler_pipe::create): Use security attribute with inheritance according to setting of O_CLOEXEC flag. (pipe2): New exported function. * posix_ipc.cc: Throughout, open backing files with O_CLOEXEC flag to follow POSIX semantics. * security.h (sec_none_cloexec): New define. * syscalls.cc (dup): Add missing extern "C" qualifier. Accommodate renaming of dtable::dup2 to dtable::dup3. (dup2): Ditto. Check newfd == oldfd here. (dup3): New function. Check newfd == oldfd here. (open): Set close_on_exec flag according to O_CLOEXEC flag before calling fhandler->open. * include/cygwin/version.h (CYGWIN_VERSION_API_MINOR): Bump.
2010-01-15 02:46:02 +08:00
inline PSECURITY_ATTRIBUTES
sec_user_cloexec (bool cloexec, PSECURITY_ATTRIBUTES sa, PSID sid)
{
return cloexec ? sec_user_nih (sa, sid) : sec_user (sa, sid);
}
int
Preliminary change to make fifos/pipes interruptible and fifos reliable. * dtable.cc (dtable::find_fifo): Eliminate definition. * dtable.h (dtable::find_fifo): Ditto for declaration. * fhandler.cc (fhandler_base::raw_read): Remove pipe-specific stuff. (fhandler_base::fhandler_base): Ditto. (fhandler_base::close): Handle overlapped I/O structure if appropriate. (fhandler_base::dup): Ditto. (fhandler_base::fork_fixup): Ditto. (fhandler_base::setup_overlapped): Define new function. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. * fhandler.h (fhandler_base::get_overlapped): Declare new function. (fhandler_base::setup_overlapped): Ditto. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. (fhandler_base::get_guard): Eliminate. (fhandler_pipe::*): Rework to eliminate most Win9x related cruft, removing many variables and defining a new overlapped capability. (fhandler_fifo::*): Ditto. (fifo_state): Declare new enum. * fhandler_fifo.cc (fhandler_fifo::fhandler_fifo): Remove old Win9x stuff. Initialize overlapped handle to NULL. (fhandler_fifo::set_use): Eliminate. (fhandler_fifo::open_nonserver): Define. (fhandler_fifo::open): Rework to use named pipes and overlapped I/O. (fhandler_fifo::wait): Define new function to wait for named pipe connection. (fhandler_fifo::read): Rework to use wait() and new overlapped I/O functionality. (fhandler_fifo::write): Ditto. (fhandler_fifo::dup): Eliminate. * pinfo.cc (commune_process): Remove fifo handling. (_pinfo::commune_request): Ditto. * pinfo.h (picom): Ditto. * pipe.cc (fhandler_pipe::fhandler_pipe): Remove Win9x stuff. Initialize overlapped handle to NULL. (fhandler_pipe::open): Eliminate Win9x stuff. (fhandler_pipe::set_close_on_exec): Eliminate. (read_pipe): Eliminate. (fhandler_pipe::close): Ditto. (fhandler_pipe::fixup_after_exec): Ditto. (fhandler_pipe::fixup_in_child): Ditto. (fhandler_pipe::read): Rework to use overlapped I/O. (fhandler_pipe::write): New function using overlapped I/O. (fhandler_pipe::dup): Rework to eliminate Win9x stuff. (fhandler_pipe::create_selectable): Rework to eliminate Win9x and use overlapped I/O. * select.cc (peek_pipe): Rework to eliminate Win9x stuff and use overlapped I/O. (fhandler_base::ready_for_read): Ditto.
2007-07-08 01:00:33 +08:00
fhandler_fifo::open (int flags, mode_t)
{
* sigproc.h (wait_for_sigthread): Eliminate parameter. * sigproc.cc (wait_for_sigthread): Ditto. Don't synchronize with wait_sig after receiving an event that it is ready to go. (init_sig_pipe): New function. (wait_sig): Call init_sig_pipe to create pipes for communicating signals to this process. Don't send sigCONT signal when initializing. * fork.cc (frok::child): Accommodate wait_for_sigpipe parameter change. * fhandler.h (fhandler_*::write): Make ssize_t/__stdcall. (fhandler_*::write_overlapped): Ditto. (fhandler_*::raw_write): Ditto. (fhandler_*::readv): Ditto. (fhandler_*::writev): Ditto. (fhandler_*::raw_read): Make __stdcall. * fhandler: Accommodate changes to read/write functions throughout. * fhandler_clipboard.cc: Ditto. * fhandler_console.cc: Ditto. * fhandler_dsp.cc: Ditto. * fhandler_fifo.cc: Ditto. * fhandler_mailslot.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_random.cc: Ditto. * fhandler_tape.cc: Ditto. * fhandler_tty.cc: Ditto. * fhandler_virtual.cc: Ditto. * fhandler_windows.cc: Ditto. * fhandler_zero.cc: Ditto. * syscalls.cc (readv): Use ssize_t as temp variable. * fhandler.cc (fhandler_base::read): Coerce returned len to signed or it will never be treated as < 0. (fhandler_base::wait_overlapped): Minimize calls to GetLastError. Remove duplicate debugging test. Fix error return. * fhandler.h (fhandler_fifo::fifo_name): Declare new function. (fhandler_fifo::close): Ditto. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto. * fhandler.cc (fhandler_fifo::fifo_name): Define new function. (FIFO_BUF_SIZE): New define. (cnp): Ditto. (fhandler_fifo::open): Rework. Use cnp to open named pipe. Always open write side as a client. Open dummy client when writing and can't connect. (wait): Rework. Implement fifo_wait_for_next_client. Handle signals during connect better. Add new fifo_wait_for_server code which polls (sigh) waiting for server. (fhandler_fifo::raw_read): Handle transition states when one client closes and another is available. (fhandler_fifo::close): Define. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto.
2009-07-25 04:54:33 +08:00
int res = 1;
char npname[MAX_PATH];
Preliminary change to make fifos/pipes interruptible and fifos reliable. * dtable.cc (dtable::find_fifo): Eliminate definition. * dtable.h (dtable::find_fifo): Ditto for declaration. * fhandler.cc (fhandler_base::raw_read): Remove pipe-specific stuff. (fhandler_base::fhandler_base): Ditto. (fhandler_base::close): Handle overlapped I/O structure if appropriate. (fhandler_base::dup): Ditto. (fhandler_base::fork_fixup): Ditto. (fhandler_base::setup_overlapped): Define new function. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. * fhandler.h (fhandler_base::get_overlapped): Declare new function. (fhandler_base::setup_overlapped): Ditto. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. (fhandler_base::get_guard): Eliminate. (fhandler_pipe::*): Rework to eliminate most Win9x related cruft, removing many variables and defining a new overlapped capability. (fhandler_fifo::*): Ditto. (fifo_state): Declare new enum. * fhandler_fifo.cc (fhandler_fifo::fhandler_fifo): Remove old Win9x stuff. Initialize overlapped handle to NULL. (fhandler_fifo::set_use): Eliminate. (fhandler_fifo::open_nonserver): Define. (fhandler_fifo::open): Rework to use named pipes and overlapped I/O. (fhandler_fifo::wait): Define new function to wait for named pipe connection. (fhandler_fifo::read): Rework to use wait() and new overlapped I/O functionality. (fhandler_fifo::write): Ditto. (fhandler_fifo::dup): Eliminate. * pinfo.cc (commune_process): Remove fifo handling. (_pinfo::commune_request): Ditto. * pinfo.h (picom): Ditto. * pipe.cc (fhandler_pipe::fhandler_pipe): Remove Win9x stuff. Initialize overlapped handle to NULL. (fhandler_pipe::open): Eliminate Win9x stuff. (fhandler_pipe::set_close_on_exec): Eliminate. (read_pipe): Eliminate. (fhandler_pipe::close): Ditto. (fhandler_pipe::fixup_after_exec): Ditto. (fhandler_pipe::fixup_in_child): Ditto. (fhandler_pipe::read): Rework to use overlapped I/O. (fhandler_pipe::write): New function using overlapped I/O. (fhandler_pipe::dup): Rework to eliminate Win9x stuff. (fhandler_pipe::create_selectable): Rework to eliminate Win9x and use overlapped I/O. * select.cc (peek_pipe): Rework to eliminate Win9x stuff and use overlapped I/O. (fhandler_base::ready_for_read): Ditto.
2007-07-08 01:00:33 +08:00
* sigproc.h (wait_for_sigthread): Eliminate parameter. * sigproc.cc (wait_for_sigthread): Ditto. Don't synchronize with wait_sig after receiving an event that it is ready to go. (init_sig_pipe): New function. (wait_sig): Call init_sig_pipe to create pipes for communicating signals to this process. Don't send sigCONT signal when initializing. * fork.cc (frok::child): Accommodate wait_for_sigpipe parameter change. * fhandler.h (fhandler_*::write): Make ssize_t/__stdcall. (fhandler_*::write_overlapped): Ditto. (fhandler_*::raw_write): Ditto. (fhandler_*::readv): Ditto. (fhandler_*::writev): Ditto. (fhandler_*::raw_read): Make __stdcall. * fhandler: Accommodate changes to read/write functions throughout. * fhandler_clipboard.cc: Ditto. * fhandler_console.cc: Ditto. * fhandler_dsp.cc: Ditto. * fhandler_fifo.cc: Ditto. * fhandler_mailslot.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_random.cc: Ditto. * fhandler_tape.cc: Ditto. * fhandler_tty.cc: Ditto. * fhandler_virtual.cc: Ditto. * fhandler_windows.cc: Ditto. * fhandler_zero.cc: Ditto. * syscalls.cc (readv): Use ssize_t as temp variable. * fhandler.cc (fhandler_base::read): Coerce returned len to signed or it will never be treated as < 0. (fhandler_base::wait_overlapped): Minimize calls to GetLastError. Remove duplicate debugging test. Fix error return. * fhandler.h (fhandler_fifo::fifo_name): Declare new function. (fhandler_fifo::close): Ditto. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto. * fhandler.cc (fhandler_fifo::fifo_name): Define new function. (FIFO_BUF_SIZE): New define. (cnp): Ditto. (fhandler_fifo::open): Rework. Use cnp to open named pipe. Always open write side as a client. Open dummy client when writing and can't connect. (wait): Rework. Implement fifo_wait_for_next_client. Handle signals during connect better. Add new fifo_wait_for_server code which polls (sigh) waiting for server. (fhandler_fifo::raw_read): Handle transition states when one client closes and another is available. (fhandler_fifo::close): Define. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto.
2009-07-25 04:54:33 +08:00
fifo_name (npname);
Preliminary change to make fifos/pipes interruptible and fifos reliable. * dtable.cc (dtable::find_fifo): Eliminate definition. * dtable.h (dtable::find_fifo): Ditto for declaration. * fhandler.cc (fhandler_base::raw_read): Remove pipe-specific stuff. (fhandler_base::fhandler_base): Ditto. (fhandler_base::close): Handle overlapped I/O structure if appropriate. (fhandler_base::dup): Ditto. (fhandler_base::fork_fixup): Ditto. (fhandler_base::setup_overlapped): Define new function. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. * fhandler.h (fhandler_base::get_overlapped): Declare new function. (fhandler_base::setup_overlapped): Ditto. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. (fhandler_base::get_guard): Eliminate. (fhandler_pipe::*): Rework to eliminate most Win9x related cruft, removing many variables and defining a new overlapped capability. (fhandler_fifo::*): Ditto. (fifo_state): Declare new enum. * fhandler_fifo.cc (fhandler_fifo::fhandler_fifo): Remove old Win9x stuff. Initialize overlapped handle to NULL. (fhandler_fifo::set_use): Eliminate. (fhandler_fifo::open_nonserver): Define. (fhandler_fifo::open): Rework to use named pipes and overlapped I/O. (fhandler_fifo::wait): Define new function to wait for named pipe connection. (fhandler_fifo::read): Rework to use wait() and new overlapped I/O functionality. (fhandler_fifo::write): Ditto. (fhandler_fifo::dup): Eliminate. * pinfo.cc (commune_process): Remove fifo handling. (_pinfo::commune_request): Ditto. * pinfo.h (picom): Ditto. * pipe.cc (fhandler_pipe::fhandler_pipe): Remove Win9x stuff. Initialize overlapped handle to NULL. (fhandler_pipe::open): Eliminate Win9x stuff. (fhandler_pipe::set_close_on_exec): Eliminate. (read_pipe): Eliminate. (fhandler_pipe::close): Ditto. (fhandler_pipe::fixup_after_exec): Ditto. (fhandler_pipe::fixup_in_child): Ditto. (fhandler_pipe::read): Rework to use overlapped I/O. (fhandler_pipe::write): New function using overlapped I/O. (fhandler_pipe::dup): Rework to eliminate Win9x stuff. (fhandler_pipe::create_selectable): Rework to eliminate Win9x and use overlapped I/O. * select.cc (peek_pipe): Rework to eliminate Win9x stuff and use overlapped I/O. (fhandler_base::ready_for_read): Ditto.
2007-07-08 01:00:33 +08:00
unsigned low_flags = flags & O_ACCMODE;
* sigproc.h (wait_for_sigthread): Eliminate parameter. * sigproc.cc (wait_for_sigthread): Ditto. Don't synchronize with wait_sig after receiving an event that it is ready to go. (init_sig_pipe): New function. (wait_sig): Call init_sig_pipe to create pipes for communicating signals to this process. Don't send sigCONT signal when initializing. * fork.cc (frok::child): Accommodate wait_for_sigpipe parameter change. * fhandler.h (fhandler_*::write): Make ssize_t/__stdcall. (fhandler_*::write_overlapped): Ditto. (fhandler_*::raw_write): Ditto. (fhandler_*::readv): Ditto. (fhandler_*::writev): Ditto. (fhandler_*::raw_read): Make __stdcall. * fhandler: Accommodate changes to read/write functions throughout. * fhandler_clipboard.cc: Ditto. * fhandler_console.cc: Ditto. * fhandler_dsp.cc: Ditto. * fhandler_fifo.cc: Ditto. * fhandler_mailslot.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_random.cc: Ditto. * fhandler_tape.cc: Ditto. * fhandler_tty.cc: Ditto. * fhandler_virtual.cc: Ditto. * fhandler_windows.cc: Ditto. * fhandler_zero.cc: Ditto. * syscalls.cc (readv): Use ssize_t as temp variable. * fhandler.cc (fhandler_base::read): Coerce returned len to signed or it will never be treated as < 0. (fhandler_base::wait_overlapped): Minimize calls to GetLastError. Remove duplicate debugging test. Fix error return. * fhandler.h (fhandler_fifo::fifo_name): Declare new function. (fhandler_fifo::close): Ditto. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto. * fhandler.cc (fhandler_fifo::fifo_name): Define new function. (FIFO_BUF_SIZE): New define. (cnp): Ditto. (fhandler_fifo::open): Rework. Use cnp to open named pipe. Always open write side as a client. Open dummy client when writing and can't connect. (wait): Rework. Implement fifo_wait_for_next_client. Handle signals during connect better. Add new fifo_wait_for_server code which polls (sigh) waiting for server. (fhandler_fifo::raw_read): Handle transition states when one client closes and another is available. (fhandler_fifo::close): Define. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto.
2009-07-25 04:54:33 +08:00
DWORD mode = 0;
if (low_flags == O_WRONLY)
2009-07-18 06:51:28 +08:00
mode = PIPE_ACCESS_OUTBOUND;
* sigproc.h (wait_for_sigthread): Eliminate parameter. * sigproc.cc (wait_for_sigthread): Ditto. Don't synchronize with wait_sig after receiving an event that it is ready to go. (init_sig_pipe): New function. (wait_sig): Call init_sig_pipe to create pipes for communicating signals to this process. Don't send sigCONT signal when initializing. * fork.cc (frok::child): Accommodate wait_for_sigpipe parameter change. * fhandler.h (fhandler_*::write): Make ssize_t/__stdcall. (fhandler_*::write_overlapped): Ditto. (fhandler_*::raw_write): Ditto. (fhandler_*::readv): Ditto. (fhandler_*::writev): Ditto. (fhandler_*::raw_read): Make __stdcall. * fhandler: Accommodate changes to read/write functions throughout. * fhandler_clipboard.cc: Ditto. * fhandler_console.cc: Ditto. * fhandler_dsp.cc: Ditto. * fhandler_fifo.cc: Ditto. * fhandler_mailslot.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_random.cc: Ditto. * fhandler_tape.cc: Ditto. * fhandler_tty.cc: Ditto. * fhandler_virtual.cc: Ditto. * fhandler_windows.cc: Ditto. * fhandler_zero.cc: Ditto. * syscalls.cc (readv): Use ssize_t as temp variable. * fhandler.cc (fhandler_base::read): Coerce returned len to signed or it will never be treated as < 0. (fhandler_base::wait_overlapped): Minimize calls to GetLastError. Remove duplicate debugging test. Fix error return. * fhandler.h (fhandler_fifo::fifo_name): Declare new function. (fhandler_fifo::close): Ditto. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto. * fhandler.cc (fhandler_fifo::fifo_name): Define new function. (FIFO_BUF_SIZE): New define. (cnp): Ditto. (fhandler_fifo::open): Rework. Use cnp to open named pipe. Always open write side as a client. Open dummy client when writing and can't connect. (wait): Rework. Implement fifo_wait_for_next_client. Handle signals during connect better. Add new fifo_wait_for_server code which polls (sigh) waiting for server. (fhandler_fifo::raw_read): Handle transition states when one client closes and another is available. (fhandler_fifo::close): Define. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto.
2009-07-25 04:54:33 +08:00
else if (low_flags == O_RDONLY || low_flags == O_RDWR)
Preliminary change to make fifos/pipes interruptible and fifos reliable. * dtable.cc (dtable::find_fifo): Eliminate definition. * dtable.h (dtable::find_fifo): Ditto for declaration. * fhandler.cc (fhandler_base::raw_read): Remove pipe-specific stuff. (fhandler_base::fhandler_base): Ditto. (fhandler_base::close): Handle overlapped I/O structure if appropriate. (fhandler_base::dup): Ditto. (fhandler_base::fork_fixup): Ditto. (fhandler_base::setup_overlapped): Define new function. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. * fhandler.h (fhandler_base::get_overlapped): Declare new function. (fhandler_base::setup_overlapped): Ditto. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. (fhandler_base::get_guard): Eliminate. (fhandler_pipe::*): Rework to eliminate most Win9x related cruft, removing many variables and defining a new overlapped capability. (fhandler_fifo::*): Ditto. (fifo_state): Declare new enum. * fhandler_fifo.cc (fhandler_fifo::fhandler_fifo): Remove old Win9x stuff. Initialize overlapped handle to NULL. (fhandler_fifo::set_use): Eliminate. (fhandler_fifo::open_nonserver): Define. (fhandler_fifo::open): Rework to use named pipes and overlapped I/O. (fhandler_fifo::wait): Define new function to wait for named pipe connection. (fhandler_fifo::read): Rework to use wait() and new overlapped I/O functionality. (fhandler_fifo::write): Ditto. (fhandler_fifo::dup): Eliminate. * pinfo.cc (commune_process): Remove fifo handling. (_pinfo::commune_request): Ditto. * pinfo.h (picom): Ditto. * pipe.cc (fhandler_pipe::fhandler_pipe): Remove Win9x stuff. Initialize overlapped handle to NULL. (fhandler_pipe::open): Eliminate Win9x stuff. (fhandler_pipe::set_close_on_exec): Eliminate. (read_pipe): Eliminate. (fhandler_pipe::close): Ditto. (fhandler_pipe::fixup_after_exec): Ditto. (fhandler_pipe::fixup_in_child): Ditto. (fhandler_pipe::read): Rework to use overlapped I/O. (fhandler_pipe::write): New function using overlapped I/O. (fhandler_pipe::dup): Rework to eliminate Win9x stuff. (fhandler_pipe::create_selectable): Rework to eliminate Win9x and use overlapped I/O. * select.cc (peek_pipe): Rework to eliminate Win9x stuff and use overlapped I/O. (fhandler_base::ready_for_read): Ditto.
2007-07-08 01:00:33 +08:00
mode = PIPE_ACCESS_DUPLEX;
* sigproc.h (wait_for_sigthread): Eliminate parameter. * sigproc.cc (wait_for_sigthread): Ditto. Don't synchronize with wait_sig after receiving an event that it is ready to go. (init_sig_pipe): New function. (wait_sig): Call init_sig_pipe to create pipes for communicating signals to this process. Don't send sigCONT signal when initializing. * fork.cc (frok::child): Accommodate wait_for_sigpipe parameter change. * fhandler.h (fhandler_*::write): Make ssize_t/__stdcall. (fhandler_*::write_overlapped): Ditto. (fhandler_*::raw_write): Ditto. (fhandler_*::readv): Ditto. (fhandler_*::writev): Ditto. (fhandler_*::raw_read): Make __stdcall. * fhandler: Accommodate changes to read/write functions throughout. * fhandler_clipboard.cc: Ditto. * fhandler_console.cc: Ditto. * fhandler_dsp.cc: Ditto. * fhandler_fifo.cc: Ditto. * fhandler_mailslot.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_random.cc: Ditto. * fhandler_tape.cc: Ditto. * fhandler_tty.cc: Ditto. * fhandler_virtual.cc: Ditto. * fhandler_windows.cc: Ditto. * fhandler_zero.cc: Ditto. * syscalls.cc (readv): Use ssize_t as temp variable. * fhandler.cc (fhandler_base::read): Coerce returned len to signed or it will never be treated as < 0. (fhandler_base::wait_overlapped): Minimize calls to GetLastError. Remove duplicate debugging test. Fix error return. * fhandler.h (fhandler_fifo::fifo_name): Declare new function. (fhandler_fifo::close): Ditto. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto. * fhandler.cc (fhandler_fifo::fifo_name): Define new function. (FIFO_BUF_SIZE): New define. (cnp): Ditto. (fhandler_fifo::open): Rework. Use cnp to open named pipe. Always open write side as a client. Open dummy client when writing and can't connect. (wait): Rework. Implement fifo_wait_for_next_client. Handle signals during connect better. Add new fifo_wait_for_server code which polls (sigh) waiting for server. (fhandler_fifo::raw_read): Handle transition states when one client closes and another is available. (fhandler_fifo::close): Define. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto.
2009-07-25 04:54:33 +08:00
else
{
Preliminary change to make fifos/pipes interruptible and fifos reliable. * dtable.cc (dtable::find_fifo): Eliminate definition. * dtable.h (dtable::find_fifo): Ditto for declaration. * fhandler.cc (fhandler_base::raw_read): Remove pipe-specific stuff. (fhandler_base::fhandler_base): Ditto. (fhandler_base::close): Handle overlapped I/O structure if appropriate. (fhandler_base::dup): Ditto. (fhandler_base::fork_fixup): Ditto. (fhandler_base::setup_overlapped): Define new function. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. * fhandler.h (fhandler_base::get_overlapped): Declare new function. (fhandler_base::setup_overlapped): Ditto. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. (fhandler_base::get_guard): Eliminate. (fhandler_pipe::*): Rework to eliminate most Win9x related cruft, removing many variables and defining a new overlapped capability. (fhandler_fifo::*): Ditto. (fifo_state): Declare new enum. * fhandler_fifo.cc (fhandler_fifo::fhandler_fifo): Remove old Win9x stuff. Initialize overlapped handle to NULL. (fhandler_fifo::set_use): Eliminate. (fhandler_fifo::open_nonserver): Define. (fhandler_fifo::open): Rework to use named pipes and overlapped I/O. (fhandler_fifo::wait): Define new function to wait for named pipe connection. (fhandler_fifo::read): Rework to use wait() and new overlapped I/O functionality. (fhandler_fifo::write): Ditto. (fhandler_fifo::dup): Eliminate. * pinfo.cc (commune_process): Remove fifo handling. (_pinfo::commune_request): Ditto. * pinfo.h (picom): Ditto. * pipe.cc (fhandler_pipe::fhandler_pipe): Remove Win9x stuff. Initialize overlapped handle to NULL. (fhandler_pipe::open): Eliminate Win9x stuff. (fhandler_pipe::set_close_on_exec): Eliminate. (read_pipe): Eliminate. (fhandler_pipe::close): Ditto. (fhandler_pipe::fixup_after_exec): Ditto. (fhandler_pipe::fixup_in_child): Ditto. (fhandler_pipe::read): Rework to use overlapped I/O. (fhandler_pipe::write): New function using overlapped I/O. (fhandler_pipe::dup): Rework to eliminate Win9x stuff. (fhandler_pipe::create_selectable): Rework to eliminate Win9x and use overlapped I/O. * select.cc (peek_pipe): Rework to eliminate Win9x stuff and use overlapped I/O. (fhandler_base::ready_for_read): Ditto.
2007-07-08 01:00:33 +08:00
set_errno (EINVAL);
res = 0;
}
* sigproc.h (wait_for_sigthread): Eliminate parameter. * sigproc.cc (wait_for_sigthread): Ditto. Don't synchronize with wait_sig after receiving an event that it is ready to go. (init_sig_pipe): New function. (wait_sig): Call init_sig_pipe to create pipes for communicating signals to this process. Don't send sigCONT signal when initializing. * fork.cc (frok::child): Accommodate wait_for_sigpipe parameter change. * fhandler.h (fhandler_*::write): Make ssize_t/__stdcall. (fhandler_*::write_overlapped): Ditto. (fhandler_*::raw_write): Ditto. (fhandler_*::readv): Ditto. (fhandler_*::writev): Ditto. (fhandler_*::raw_read): Make __stdcall. * fhandler: Accommodate changes to read/write functions throughout. * fhandler_clipboard.cc: Ditto. * fhandler_console.cc: Ditto. * fhandler_dsp.cc: Ditto. * fhandler_fifo.cc: Ditto. * fhandler_mailslot.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_random.cc: Ditto. * fhandler_tape.cc: Ditto. * fhandler_tty.cc: Ditto. * fhandler_virtual.cc: Ditto. * fhandler_windows.cc: Ditto. * fhandler_zero.cc: Ditto. * syscalls.cc (readv): Use ssize_t as temp variable. * fhandler.cc (fhandler_base::read): Coerce returned len to signed or it will never be treated as < 0. (fhandler_base::wait_overlapped): Minimize calls to GetLastError. Remove duplicate debugging test. Fix error return. * fhandler.h (fhandler_fifo::fifo_name): Declare new function. (fhandler_fifo::close): Ditto. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto. * fhandler.cc (fhandler_fifo::fifo_name): Define new function. (FIFO_BUF_SIZE): New define. (cnp): Ditto. (fhandler_fifo::open): Rework. Use cnp to open named pipe. Always open write side as a client. Open dummy client when writing and can't connect. (wait): Rework. Implement fifo_wait_for_next_client. Handle signals during connect better. Add new fifo_wait_for_server code which polls (sigh) waiting for server. (fhandler_fifo::raw_read): Handle transition states when one client closes and another is available. (fhandler_fifo::close): Define. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto.
2009-07-25 04:54:33 +08:00
if (res)
Preliminary change to make fifos/pipes interruptible and fifos reliable. * dtable.cc (dtable::find_fifo): Eliminate definition. * dtable.h (dtable::find_fifo): Ditto for declaration. * fhandler.cc (fhandler_base::raw_read): Remove pipe-specific stuff. (fhandler_base::fhandler_base): Ditto. (fhandler_base::close): Handle overlapped I/O structure if appropriate. (fhandler_base::dup): Ditto. (fhandler_base::fork_fixup): Ditto. (fhandler_base::setup_overlapped): Define new function. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. * fhandler.h (fhandler_base::get_overlapped): Declare new function. (fhandler_base::setup_overlapped): Ditto. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. (fhandler_base::get_guard): Eliminate. (fhandler_pipe::*): Rework to eliminate most Win9x related cruft, removing many variables and defining a new overlapped capability. (fhandler_fifo::*): Ditto. (fifo_state): Declare new enum. * fhandler_fifo.cc (fhandler_fifo::fhandler_fifo): Remove old Win9x stuff. Initialize overlapped handle to NULL. (fhandler_fifo::set_use): Eliminate. (fhandler_fifo::open_nonserver): Define. (fhandler_fifo::open): Rework to use named pipes and overlapped I/O. (fhandler_fifo::wait): Define new function to wait for named pipe connection. (fhandler_fifo::read): Rework to use wait() and new overlapped I/O functionality. (fhandler_fifo::write): Ditto. (fhandler_fifo::dup): Eliminate. * pinfo.cc (commune_process): Remove fifo handling. (_pinfo::commune_request): Ditto. * pinfo.h (picom): Ditto. * pipe.cc (fhandler_pipe::fhandler_pipe): Remove Win9x stuff. Initialize overlapped handle to NULL. (fhandler_pipe::open): Eliminate Win9x stuff. (fhandler_pipe::set_close_on_exec): Eliminate. (read_pipe): Eliminate. (fhandler_pipe::close): Ditto. (fhandler_pipe::fixup_after_exec): Ditto. (fhandler_pipe::fixup_in_child): Ditto. (fhandler_pipe::read): Rework to use overlapped I/O. (fhandler_pipe::write): New function using overlapped I/O. (fhandler_pipe::dup): Rework to eliminate Win9x stuff. (fhandler_pipe::create_selectable): Rework to eliminate Win9x and use overlapped I/O. * select.cc (peek_pipe): Rework to eliminate Win9x stuff and use overlapped I/O. (fhandler_base::ready_for_read): Ditto.
2007-07-08 01:00:33 +08:00
{
char char_sa_buf[1024];
LPSECURITY_ATTRIBUTES sa_buf =
* cygwin.din (dup3): Export. (pipe2): Export. * dtable.cc (dtable::dup_worker): Take additional flags parameter. Handle O_CLOEXEC flag. (dtable::dup3): Rename from dup2. Take additional flags parameter. Check for valid flags. Drop check for newfd == oldfd. * dtable.h (dtable::dup_worker): Add flags parameter. (dtable::dup3): Rename from dup2. * fcntl.cc (fcntl64): Add F_DUPFD_CLOEXEC case. * fhandler.h (fhandler_mailslot::get_object_attr): Add flags parameter. * fhandler.cc (fhandler_base::open): Use security attribute with inheritance according to setting of O_CLOEXEC flag. * fhandler_console.cc (fhandler_console::open): Ditto. * fhandler_fifo.cc (sec_user_cloexec): New inline function to create security attribute with inheritance according to setting of O_CLOEXEC flag. (fhandler_fifo::open): Call sec_user_cloexec to fetch security attribute. (fhandler_fifo::wait): Ditto. * fhandler_mem.cc (fhandler_dev_mem::open): Ditto. * fhandler_mailslot.cc (fhandler_mailslot::get_object_attr): Take additional flags parameter. Use security attribute with inheritance according to setting of O_CLOEXEC flag. (fhandler_mailslot::open): Call get_object_attr with flags parameter. * fhandler_registry.cc (fhandler_registry::open): Call set_close_on_exec on real handles to accommodate O_CLOEXEC flag. * fhandler_tty.cc (fhandler_tty_slave::open): Ditto. * fhandler_tape.cc: Create mutex with inheritance according to setting of O_CLOEXEC flag. * pipe.cc: Replace usage of O_NOINHERIT with O_CLOEXEC. (fhandler_pipe::init): Simplify setting close_on_exec flag. (fhandler_pipe::open): Remove setting close_on_exec flag. (fhandler_pipe::create): Use security attribute with inheritance according to setting of O_CLOEXEC flag. (pipe2): New exported function. * posix_ipc.cc: Throughout, open backing files with O_CLOEXEC flag to follow POSIX semantics. * security.h (sec_none_cloexec): New define. * syscalls.cc (dup): Add missing extern "C" qualifier. Accommodate renaming of dtable::dup2 to dtable::dup3. (dup2): Ditto. Check newfd == oldfd here. (dup3): New function. Check newfd == oldfd here. (open): Set close_on_exec flag according to O_CLOEXEC flag before calling fhandler->open. * include/cygwin/version.h (CYGWIN_VERSION_API_MINOR): Bump.
2010-01-15 02:46:02 +08:00
sec_user_cloexec (flags & O_CLOEXEC, (PSECURITY_ATTRIBUTES) char_sa_buf,
cygheap->user.sid());
bool do_seterrno = true;
HANDLE h;
bool nonblocking_write = !!((flags & (O_WRONLY | O_NONBLOCK)) == (O_WRONLY | O_NONBLOCK));
* sigproc.h (wait_for_sigthread): Eliminate parameter. * sigproc.cc (wait_for_sigthread): Ditto. Don't synchronize with wait_sig after receiving an event that it is ready to go. (init_sig_pipe): New function. (wait_sig): Call init_sig_pipe to create pipes for communicating signals to this process. Don't send sigCONT signal when initializing. * fork.cc (frok::child): Accommodate wait_for_sigpipe parameter change. * fhandler.h (fhandler_*::write): Make ssize_t/__stdcall. (fhandler_*::write_overlapped): Ditto. (fhandler_*::raw_write): Ditto. (fhandler_*::readv): Ditto. (fhandler_*::writev): Ditto. (fhandler_*::raw_read): Make __stdcall. * fhandler: Accommodate changes to read/write functions throughout. * fhandler_clipboard.cc: Ditto. * fhandler_console.cc: Ditto. * fhandler_dsp.cc: Ditto. * fhandler_fifo.cc: Ditto. * fhandler_mailslot.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_random.cc: Ditto. * fhandler_tape.cc: Ditto. * fhandler_tty.cc: Ditto. * fhandler_virtual.cc: Ditto. * fhandler_windows.cc: Ditto. * fhandler_zero.cc: Ditto. * syscalls.cc (readv): Use ssize_t as temp variable. * fhandler.cc (fhandler_base::read): Coerce returned len to signed or it will never be treated as < 0. (fhandler_base::wait_overlapped): Minimize calls to GetLastError. Remove duplicate debugging test. Fix error return. * fhandler.h (fhandler_fifo::fifo_name): Declare new function. (fhandler_fifo::close): Ditto. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto. * fhandler.cc (fhandler_fifo::fifo_name): Define new function. (FIFO_BUF_SIZE): New define. (cnp): Ditto. (fhandler_fifo::open): Rework. Use cnp to open named pipe. Always open write side as a client. Open dummy client when writing and can't connect. (wait): Rework. Implement fifo_wait_for_next_client. Handle signals during connect better. Add new fifo_wait_for_server code which polls (sigh) waiting for server. (fhandler_fifo::raw_read): Handle transition states when one client closes and another is available. (fhandler_fifo::close): Define. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto.
2009-07-25 04:54:33 +08:00
wait_state = fifo_unknown;
if (mode != PIPE_ACCESS_OUTBOUND)
{
* sigproc.h (wait_for_sigthread): Eliminate parameter. * sigproc.cc (wait_for_sigthread): Ditto. Don't synchronize with wait_sig after receiving an event that it is ready to go. (init_sig_pipe): New function. (wait_sig): Call init_sig_pipe to create pipes for communicating signals to this process. Don't send sigCONT signal when initializing. * fork.cc (frok::child): Accommodate wait_for_sigpipe parameter change. * fhandler.h (fhandler_*::write): Make ssize_t/__stdcall. (fhandler_*::write_overlapped): Ditto. (fhandler_*::raw_write): Ditto. (fhandler_*::readv): Ditto. (fhandler_*::writev): Ditto. (fhandler_*::raw_read): Make __stdcall. * fhandler: Accommodate changes to read/write functions throughout. * fhandler_clipboard.cc: Ditto. * fhandler_console.cc: Ditto. * fhandler_dsp.cc: Ditto. * fhandler_fifo.cc: Ditto. * fhandler_mailslot.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_random.cc: Ditto. * fhandler_tape.cc: Ditto. * fhandler_tty.cc: Ditto. * fhandler_virtual.cc: Ditto. * fhandler_windows.cc: Ditto. * fhandler_zero.cc: Ditto. * syscalls.cc (readv): Use ssize_t as temp variable. * fhandler.cc (fhandler_base::read): Coerce returned len to signed or it will never be treated as < 0. (fhandler_base::wait_overlapped): Minimize calls to GetLastError. Remove duplicate debugging test. Fix error return. * fhandler.h (fhandler_fifo::fifo_name): Declare new function. (fhandler_fifo::close): Ditto. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto. * fhandler.cc (fhandler_fifo::fifo_name): Define new function. (FIFO_BUF_SIZE): New define. (cnp): Ditto. (fhandler_fifo::open): Rework. Use cnp to open named pipe. Always open write side as a client. Open dummy client when writing and can't connect. (wait): Rework. Implement fifo_wait_for_next_client. Handle signals during connect better. Add new fifo_wait_for_server code which polls (sigh) waiting for server. (fhandler_fifo::raw_read): Handle transition states when one client closes and another is available. (fhandler_fifo::close): Define. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto.
2009-07-25 04:54:33 +08:00
h = cnp (mode | FILE_FLAG_OVERLAPPED, FIFO_BUF_SIZE);
wait_state = fifo_wait_for_client;
}
else
{
* sigproc.h (wait_for_sigthread): Eliminate parameter. * sigproc.cc (wait_for_sigthread): Ditto. Don't synchronize with wait_sig after receiving an event that it is ready to go. (init_sig_pipe): New function. (wait_sig): Call init_sig_pipe to create pipes for communicating signals to this process. Don't send sigCONT signal when initializing. * fork.cc (frok::child): Accommodate wait_for_sigpipe parameter change. * fhandler.h (fhandler_*::write): Make ssize_t/__stdcall. (fhandler_*::write_overlapped): Ditto. (fhandler_*::raw_write): Ditto. (fhandler_*::readv): Ditto. (fhandler_*::writev): Ditto. (fhandler_*::raw_read): Make __stdcall. * fhandler: Accommodate changes to read/write functions throughout. * fhandler_clipboard.cc: Ditto. * fhandler_console.cc: Ditto. * fhandler_dsp.cc: Ditto. * fhandler_fifo.cc: Ditto. * fhandler_mailslot.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_random.cc: Ditto. * fhandler_tape.cc: Ditto. * fhandler_tty.cc: Ditto. * fhandler_virtual.cc: Ditto. * fhandler_windows.cc: Ditto. * fhandler_zero.cc: Ditto. * syscalls.cc (readv): Use ssize_t as temp variable. * fhandler.cc (fhandler_base::read): Coerce returned len to signed or it will never be treated as < 0. (fhandler_base::wait_overlapped): Minimize calls to GetLastError. Remove duplicate debugging test. Fix error return. * fhandler.h (fhandler_fifo::fifo_name): Declare new function. (fhandler_fifo::close): Ditto. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto. * fhandler.cc (fhandler_fifo::fifo_name): Define new function. (FIFO_BUF_SIZE): New define. (cnp): Ditto. (fhandler_fifo::open): Rework. Use cnp to open named pipe. Always open write side as a client. Open dummy client when writing and can't connect. (wait): Rework. Implement fifo_wait_for_next_client. Handle signals during connect better. Add new fifo_wait_for_server code which polls (sigh) waiting for server. (fhandler_fifo::raw_read): Handle transition states when one client closes and another is available. (fhandler_fifo::close): Define. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto.
2009-07-25 04:54:33 +08:00
h = open_nonserver (npname, low_flags, sa_buf);
if (h != INVALID_HANDLE_VALUE)
wait_state = fifo_ok;
else if (nonblocking_write)
{
set_errno (ENXIO);
do_seterrno = false;
}
* sigproc.h (wait_for_sigthread): Eliminate parameter. * sigproc.cc (wait_for_sigthread): Ditto. Don't synchronize with wait_sig after receiving an event that it is ready to go. (init_sig_pipe): New function. (wait_sig): Call init_sig_pipe to create pipes for communicating signals to this process. Don't send sigCONT signal when initializing. * fork.cc (frok::child): Accommodate wait_for_sigpipe parameter change. * fhandler.h (fhandler_*::write): Make ssize_t/__stdcall. (fhandler_*::write_overlapped): Ditto. (fhandler_*::raw_write): Ditto. (fhandler_*::readv): Ditto. (fhandler_*::writev): Ditto. (fhandler_*::raw_read): Make __stdcall. * fhandler: Accommodate changes to read/write functions throughout. * fhandler_clipboard.cc: Ditto. * fhandler_console.cc: Ditto. * fhandler_dsp.cc: Ditto. * fhandler_fifo.cc: Ditto. * fhandler_mailslot.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_random.cc: Ditto. * fhandler_tape.cc: Ditto. * fhandler_tty.cc: Ditto. * fhandler_virtual.cc: Ditto. * fhandler_windows.cc: Ditto. * fhandler_zero.cc: Ditto. * syscalls.cc (readv): Use ssize_t as temp variable. * fhandler.cc (fhandler_base::read): Coerce returned len to signed or it will never be treated as < 0. (fhandler_base::wait_overlapped): Minimize calls to GetLastError. Remove duplicate debugging test. Fix error return. * fhandler.h (fhandler_fifo::fifo_name): Declare new function. (fhandler_fifo::close): Ditto. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto. * fhandler.cc (fhandler_fifo::fifo_name): Define new function. (FIFO_BUF_SIZE): New define. (cnp): Ditto. (fhandler_fifo::open): Rework. Use cnp to open named pipe. Always open write side as a client. Open dummy client when writing and can't connect. (wait): Rework. Implement fifo_wait_for_next_client. Handle signals during connect better. Add new fifo_wait_for_server code which polls (sigh) waiting for server. (fhandler_fifo::raw_read): Handle transition states when one client closes and another is available. (fhandler_fifo::close): Define. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto.
2009-07-25 04:54:33 +08:00
else if ((h = cnp (PIPE_ACCESS_DUPLEX, 1)) != INVALID_HANDLE_VALUE)
{
* sigproc.h (wait_for_sigthread): Eliminate parameter. * sigproc.cc (wait_for_sigthread): Ditto. Don't synchronize with wait_sig after receiving an event that it is ready to go. (init_sig_pipe): New function. (wait_sig): Call init_sig_pipe to create pipes for communicating signals to this process. Don't send sigCONT signal when initializing. * fork.cc (frok::child): Accommodate wait_for_sigpipe parameter change. * fhandler.h (fhandler_*::write): Make ssize_t/__stdcall. (fhandler_*::write_overlapped): Ditto. (fhandler_*::raw_write): Ditto. (fhandler_*::readv): Ditto. (fhandler_*::writev): Ditto. (fhandler_*::raw_read): Make __stdcall. * fhandler: Accommodate changes to read/write functions throughout. * fhandler_clipboard.cc: Ditto. * fhandler_console.cc: Ditto. * fhandler_dsp.cc: Ditto. * fhandler_fifo.cc: Ditto. * fhandler_mailslot.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_random.cc: Ditto. * fhandler_tape.cc: Ditto. * fhandler_tty.cc: Ditto. * fhandler_virtual.cc: Ditto. * fhandler_windows.cc: Ditto. * fhandler_zero.cc: Ditto. * syscalls.cc (readv): Use ssize_t as temp variable. * fhandler.cc (fhandler_base::read): Coerce returned len to signed or it will never be treated as < 0. (fhandler_base::wait_overlapped): Minimize calls to GetLastError. Remove duplicate debugging test. Fix error return. * fhandler.h (fhandler_fifo::fifo_name): Declare new function. (fhandler_fifo::close): Ditto. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto. * fhandler.cc (fhandler_fifo::fifo_name): Define new function. (FIFO_BUF_SIZE): New define. (cnp): Ditto. (fhandler_fifo::open): Rework. Use cnp to open named pipe. Always open write side as a client. Open dummy client when writing and can't connect. (wait): Rework. Implement fifo_wait_for_next_client. Handle signals during connect better. Add new fifo_wait_for_server code which polls (sigh) waiting for server. (fhandler_fifo::raw_read): Handle transition states when one client closes and another is available. (fhandler_fifo::close): Define. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto.
2009-07-25 04:54:33 +08:00
if ((dummy_client = open_nonserver (npname, low_flags, sa_buf))
!= INVALID_HANDLE_VALUE)
Preliminary change to make fifos/pipes interruptible and fifos reliable. * dtable.cc (dtable::find_fifo): Eliminate definition. * dtable.h (dtable::find_fifo): Ditto for declaration. * fhandler.cc (fhandler_base::raw_read): Remove pipe-specific stuff. (fhandler_base::fhandler_base): Ditto. (fhandler_base::close): Handle overlapped I/O structure if appropriate. (fhandler_base::dup): Ditto. (fhandler_base::fork_fixup): Ditto. (fhandler_base::setup_overlapped): Define new function. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. * fhandler.h (fhandler_base::get_overlapped): Declare new function. (fhandler_base::setup_overlapped): Ditto. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. (fhandler_base::get_guard): Eliminate. (fhandler_pipe::*): Rework to eliminate most Win9x related cruft, removing many variables and defining a new overlapped capability. (fhandler_fifo::*): Ditto. (fifo_state): Declare new enum. * fhandler_fifo.cc (fhandler_fifo::fhandler_fifo): Remove old Win9x stuff. Initialize overlapped handle to NULL. (fhandler_fifo::set_use): Eliminate. (fhandler_fifo::open_nonserver): Define. (fhandler_fifo::open): Rework to use named pipes and overlapped I/O. (fhandler_fifo::wait): Define new function to wait for named pipe connection. (fhandler_fifo::read): Rework to use wait() and new overlapped I/O functionality. (fhandler_fifo::write): Ditto. (fhandler_fifo::dup): Eliminate. * pinfo.cc (commune_process): Remove fifo handling. (_pinfo::commune_request): Ditto. * pinfo.h (picom): Ditto. * pipe.cc (fhandler_pipe::fhandler_pipe): Remove Win9x stuff. Initialize overlapped handle to NULL. (fhandler_pipe::open): Eliminate Win9x stuff. (fhandler_pipe::set_close_on_exec): Eliminate. (read_pipe): Eliminate. (fhandler_pipe::close): Ditto. (fhandler_pipe::fixup_after_exec): Ditto. (fhandler_pipe::fixup_in_child): Ditto. (fhandler_pipe::read): Rework to use overlapped I/O. (fhandler_pipe::write): New function using overlapped I/O. (fhandler_pipe::dup): Rework to eliminate Win9x stuff. (fhandler_pipe::create_selectable): Rework to eliminate Win9x and use overlapped I/O. * select.cc (peek_pipe): Rework to eliminate Win9x stuff and use overlapped I/O. (fhandler_base::ready_for_read): Ditto.
2007-07-08 01:00:33 +08:00
{
2009-07-18 06:51:28 +08:00
wait_state = fifo_wait_for_server;
* sigproc.h (wait_for_sigthread): Eliminate parameter. * sigproc.cc (wait_for_sigthread): Ditto. Don't synchronize with wait_sig after receiving an event that it is ready to go. (init_sig_pipe): New function. (wait_sig): Call init_sig_pipe to create pipes for communicating signals to this process. Don't send sigCONT signal when initializing. * fork.cc (frok::child): Accommodate wait_for_sigpipe parameter change. * fhandler.h (fhandler_*::write): Make ssize_t/__stdcall. (fhandler_*::write_overlapped): Ditto. (fhandler_*::raw_write): Ditto. (fhandler_*::readv): Ditto. (fhandler_*::writev): Ditto. (fhandler_*::raw_read): Make __stdcall. * fhandler: Accommodate changes to read/write functions throughout. * fhandler_clipboard.cc: Ditto. * fhandler_console.cc: Ditto. * fhandler_dsp.cc: Ditto. * fhandler_fifo.cc: Ditto. * fhandler_mailslot.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_random.cc: Ditto. * fhandler_tape.cc: Ditto. * fhandler_tty.cc: Ditto. * fhandler_virtual.cc: Ditto. * fhandler_windows.cc: Ditto. * fhandler_zero.cc: Ditto. * syscalls.cc (readv): Use ssize_t as temp variable. * fhandler.cc (fhandler_base::read): Coerce returned len to signed or it will never be treated as < 0. (fhandler_base::wait_overlapped): Minimize calls to GetLastError. Remove duplicate debugging test. Fix error return. * fhandler.h (fhandler_fifo::fifo_name): Declare new function. (fhandler_fifo::close): Ditto. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto. * fhandler.cc (fhandler_fifo::fifo_name): Define new function. (FIFO_BUF_SIZE): New define. (cnp): Ditto. (fhandler_fifo::open): Rework. Use cnp to open named pipe. Always open write side as a client. Open dummy client when writing and can't connect. (wait): Rework. Implement fifo_wait_for_next_client. Handle signals during connect better. Add new fifo_wait_for_server code which polls (sigh) waiting for server. (fhandler_fifo::raw_read): Handle transition states when one client closes and another is available. (fhandler_fifo::close): Define. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto.
2009-07-25 04:54:33 +08:00
ProtectHandle (dummy_client);
Preliminary change to make fifos/pipes interruptible and fifos reliable. * dtable.cc (dtable::find_fifo): Eliminate definition. * dtable.h (dtable::find_fifo): Ditto for declaration. * fhandler.cc (fhandler_base::raw_read): Remove pipe-specific stuff. (fhandler_base::fhandler_base): Ditto. (fhandler_base::close): Handle overlapped I/O structure if appropriate. (fhandler_base::dup): Ditto. (fhandler_base::fork_fixup): Ditto. (fhandler_base::setup_overlapped): Define new function. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. * fhandler.h (fhandler_base::get_overlapped): Declare new function. (fhandler_base::setup_overlapped): Ditto. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. (fhandler_base::get_guard): Eliminate. (fhandler_pipe::*): Rework to eliminate most Win9x related cruft, removing many variables and defining a new overlapped capability. (fhandler_fifo::*): Ditto. (fifo_state): Declare new enum. * fhandler_fifo.cc (fhandler_fifo::fhandler_fifo): Remove old Win9x stuff. Initialize overlapped handle to NULL. (fhandler_fifo::set_use): Eliminate. (fhandler_fifo::open_nonserver): Define. (fhandler_fifo::open): Rework to use named pipes and overlapped I/O. (fhandler_fifo::wait): Define new function to wait for named pipe connection. (fhandler_fifo::read): Rework to use wait() and new overlapped I/O functionality. (fhandler_fifo::write): Ditto. (fhandler_fifo::dup): Eliminate. * pinfo.cc (commune_process): Remove fifo handling. (_pinfo::commune_request): Ditto. * pinfo.h (picom): Ditto. * pipe.cc (fhandler_pipe::fhandler_pipe): Remove Win9x stuff. Initialize overlapped handle to NULL. (fhandler_pipe::open): Eliminate Win9x stuff. (fhandler_pipe::set_close_on_exec): Eliminate. (read_pipe): Eliminate. (fhandler_pipe::close): Ditto. (fhandler_pipe::fixup_after_exec): Ditto. (fhandler_pipe::fixup_in_child): Ditto. (fhandler_pipe::read): Rework to use overlapped I/O. (fhandler_pipe::write): New function using overlapped I/O. (fhandler_pipe::dup): Rework to eliminate Win9x stuff. (fhandler_pipe::create_selectable): Rework to eliminate Win9x and use overlapped I/O. * select.cc (peek_pipe): Rework to eliminate Win9x stuff and use overlapped I/O. (fhandler_base::ready_for_read): Ditto.
2007-07-08 01:00:33 +08:00
}
* sigproc.h (wait_for_sigthread): Eliminate parameter. * sigproc.cc (wait_for_sigthread): Ditto. Don't synchronize with wait_sig after receiving an event that it is ready to go. (init_sig_pipe): New function. (wait_sig): Call init_sig_pipe to create pipes for communicating signals to this process. Don't send sigCONT signal when initializing. * fork.cc (frok::child): Accommodate wait_for_sigpipe parameter change. * fhandler.h (fhandler_*::write): Make ssize_t/__stdcall. (fhandler_*::write_overlapped): Ditto. (fhandler_*::raw_write): Ditto. (fhandler_*::readv): Ditto. (fhandler_*::writev): Ditto. (fhandler_*::raw_read): Make __stdcall. * fhandler: Accommodate changes to read/write functions throughout. * fhandler_clipboard.cc: Ditto. * fhandler_console.cc: Ditto. * fhandler_dsp.cc: Ditto. * fhandler_fifo.cc: Ditto. * fhandler_mailslot.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_random.cc: Ditto. * fhandler_tape.cc: Ditto. * fhandler_tty.cc: Ditto. * fhandler_virtual.cc: Ditto. * fhandler_windows.cc: Ditto. * fhandler_zero.cc: Ditto. * syscalls.cc (readv): Use ssize_t as temp variable. * fhandler.cc (fhandler_base::read): Coerce returned len to signed or it will never be treated as < 0. (fhandler_base::wait_overlapped): Minimize calls to GetLastError. Remove duplicate debugging test. Fix error return. * fhandler.h (fhandler_fifo::fifo_name): Declare new function. (fhandler_fifo::close): Ditto. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto. * fhandler.cc (fhandler_fifo::fifo_name): Define new function. (FIFO_BUF_SIZE): New define. (cnp): Ditto. (fhandler_fifo::open): Rework. Use cnp to open named pipe. Always open write side as a client. Open dummy client when writing and can't connect. (wait): Rework. Implement fifo_wait_for_next_client. Handle signals during connect better. Add new fifo_wait_for_server code which polls (sigh) waiting for server. (fhandler_fifo::raw_read): Handle transition states when one client closes and another is available. (fhandler_fifo::close): Define. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto.
2009-07-25 04:54:33 +08:00
else
{
* sigproc.h (wait_for_sigthread): Eliminate parameter. * sigproc.cc (wait_for_sigthread): Ditto. Don't synchronize with wait_sig after receiving an event that it is ready to go. (init_sig_pipe): New function. (wait_sig): Call init_sig_pipe to create pipes for communicating signals to this process. Don't send sigCONT signal when initializing. * fork.cc (frok::child): Accommodate wait_for_sigpipe parameter change. * fhandler.h (fhandler_*::write): Make ssize_t/__stdcall. (fhandler_*::write_overlapped): Ditto. (fhandler_*::raw_write): Ditto. (fhandler_*::readv): Ditto. (fhandler_*::writev): Ditto. (fhandler_*::raw_read): Make __stdcall. * fhandler: Accommodate changes to read/write functions throughout. * fhandler_clipboard.cc: Ditto. * fhandler_console.cc: Ditto. * fhandler_dsp.cc: Ditto. * fhandler_fifo.cc: Ditto. * fhandler_mailslot.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_random.cc: Ditto. * fhandler_tape.cc: Ditto. * fhandler_tty.cc: Ditto. * fhandler_virtual.cc: Ditto. * fhandler_windows.cc: Ditto. * fhandler_zero.cc: Ditto. * syscalls.cc (readv): Use ssize_t as temp variable. * fhandler.cc (fhandler_base::read): Coerce returned len to signed or it will never be treated as < 0. (fhandler_base::wait_overlapped): Minimize calls to GetLastError. Remove duplicate debugging test. Fix error return. * fhandler.h (fhandler_fifo::fifo_name): Declare new function. (fhandler_fifo::close): Ditto. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto. * fhandler.cc (fhandler_fifo::fifo_name): Define new function. (FIFO_BUF_SIZE): New define. (cnp): Ditto. (fhandler_fifo::open): Rework. Use cnp to open named pipe. Always open write side as a client. Open dummy client when writing and can't connect. (wait): Rework. Implement fifo_wait_for_next_client. Handle signals during connect better. Add new fifo_wait_for_server code which polls (sigh) waiting for server. (fhandler_fifo::raw_read): Handle transition states when one client closes and another is available. (fhandler_fifo::close): Define. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto.
2009-07-25 04:54:33 +08:00
DWORD saveerr = GetLastError ();
CloseHandle (h);
h = INVALID_HANDLE_VALUE;
SetLastError (saveerr);
}
}
* sigproc.h (wait_for_sigthread): Eliminate parameter. * sigproc.cc (wait_for_sigthread): Ditto. Don't synchronize with wait_sig after receiving an event that it is ready to go. (init_sig_pipe): New function. (wait_sig): Call init_sig_pipe to create pipes for communicating signals to this process. Don't send sigCONT signal when initializing. * fork.cc (frok::child): Accommodate wait_for_sigpipe parameter change. * fhandler.h (fhandler_*::write): Make ssize_t/__stdcall. (fhandler_*::write_overlapped): Ditto. (fhandler_*::raw_write): Ditto. (fhandler_*::readv): Ditto. (fhandler_*::writev): Ditto. (fhandler_*::raw_read): Make __stdcall. * fhandler: Accommodate changes to read/write functions throughout. * fhandler_clipboard.cc: Ditto. * fhandler_console.cc: Ditto. * fhandler_dsp.cc: Ditto. * fhandler_fifo.cc: Ditto. * fhandler_mailslot.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_random.cc: Ditto. * fhandler_tape.cc: Ditto. * fhandler_tty.cc: Ditto. * fhandler_virtual.cc: Ditto. * fhandler_windows.cc: Ditto. * fhandler_zero.cc: Ditto. * syscalls.cc (readv): Use ssize_t as temp variable. * fhandler.cc (fhandler_base::read): Coerce returned len to signed or it will never be treated as < 0. (fhandler_base::wait_overlapped): Minimize calls to GetLastError. Remove duplicate debugging test. Fix error return. * fhandler.h (fhandler_fifo::fifo_name): Declare new function. (fhandler_fifo::close): Ditto. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto. * fhandler.cc (fhandler_fifo::fifo_name): Define new function. (FIFO_BUF_SIZE): New define. (cnp): Ditto. (fhandler_fifo::open): Rework. Use cnp to open named pipe. Always open write side as a client. Open dummy client when writing and can't connect. (wait): Rework. Implement fifo_wait_for_next_client. Handle signals during connect better. Add new fifo_wait_for_server code which polls (sigh) waiting for server. (fhandler_fifo::raw_read): Handle transition states when one client closes and another is available. (fhandler_fifo::close): Define. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto.
2009-07-25 04:54:33 +08:00
}
if (h == INVALID_HANDLE_VALUE)
{
if (do_seterrno)
__seterrno ();
* sigproc.h (wait_for_sigthread): Eliminate parameter. * sigproc.cc (wait_for_sigthread): Ditto. Don't synchronize with wait_sig after receiving an event that it is ready to go. (init_sig_pipe): New function. (wait_sig): Call init_sig_pipe to create pipes for communicating signals to this process. Don't send sigCONT signal when initializing. * fork.cc (frok::child): Accommodate wait_for_sigpipe parameter change. * fhandler.h (fhandler_*::write): Make ssize_t/__stdcall. (fhandler_*::write_overlapped): Ditto. (fhandler_*::raw_write): Ditto. (fhandler_*::readv): Ditto. (fhandler_*::writev): Ditto. (fhandler_*::raw_read): Make __stdcall. * fhandler: Accommodate changes to read/write functions throughout. * fhandler_clipboard.cc: Ditto. * fhandler_console.cc: Ditto. * fhandler_dsp.cc: Ditto. * fhandler_fifo.cc: Ditto. * fhandler_mailslot.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_random.cc: Ditto. * fhandler_tape.cc: Ditto. * fhandler_tty.cc: Ditto. * fhandler_virtual.cc: Ditto. * fhandler_windows.cc: Ditto. * fhandler_zero.cc: Ditto. * syscalls.cc (readv): Use ssize_t as temp variable. * fhandler.cc (fhandler_base::read): Coerce returned len to signed or it will never be treated as < 0. (fhandler_base::wait_overlapped): Minimize calls to GetLastError. Remove duplicate debugging test. Fix error return. * fhandler.h (fhandler_fifo::fifo_name): Declare new function. (fhandler_fifo::close): Ditto. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto. * fhandler.cc (fhandler_fifo::fifo_name): Define new function. (FIFO_BUF_SIZE): New define. (cnp): Ditto. (fhandler_fifo::open): Rework. Use cnp to open named pipe. Always open write side as a client. Open dummy client when writing and can't connect. (wait): Rework. Implement fifo_wait_for_next_client. Handle signals during connect better. Add new fifo_wait_for_server code which polls (sigh) waiting for server. (fhandler_fifo::raw_read): Handle transition states when one client closes and another is available. (fhandler_fifo::close): Define. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto.
2009-07-25 04:54:33 +08:00
res = 0;
}
else if (setup_overlapped ())
Preliminary change to make fifos/pipes interruptible and fifos reliable. * dtable.cc (dtable::find_fifo): Eliminate definition. * dtable.h (dtable::find_fifo): Ditto for declaration. * fhandler.cc (fhandler_base::raw_read): Remove pipe-specific stuff. (fhandler_base::fhandler_base): Ditto. (fhandler_base::close): Handle overlapped I/O structure if appropriate. (fhandler_base::dup): Ditto. (fhandler_base::fork_fixup): Ditto. (fhandler_base::setup_overlapped): Define new function. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. * fhandler.h (fhandler_base::get_overlapped): Declare new function. (fhandler_base::setup_overlapped): Ditto. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. (fhandler_base::get_guard): Eliminate. (fhandler_pipe::*): Rework to eliminate most Win9x related cruft, removing many variables and defining a new overlapped capability. (fhandler_fifo::*): Ditto. (fifo_state): Declare new enum. * fhandler_fifo.cc (fhandler_fifo::fhandler_fifo): Remove old Win9x stuff. Initialize overlapped handle to NULL. (fhandler_fifo::set_use): Eliminate. (fhandler_fifo::open_nonserver): Define. (fhandler_fifo::open): Rework to use named pipes and overlapped I/O. (fhandler_fifo::wait): Define new function to wait for named pipe connection. (fhandler_fifo::read): Rework to use wait() and new overlapped I/O functionality. (fhandler_fifo::write): Ditto. (fhandler_fifo::dup): Eliminate. * pinfo.cc (commune_process): Remove fifo handling. (_pinfo::commune_request): Ditto. * pinfo.h (picom): Ditto. * pipe.cc (fhandler_pipe::fhandler_pipe): Remove Win9x stuff. Initialize overlapped handle to NULL. (fhandler_pipe::open): Eliminate Win9x stuff. (fhandler_pipe::set_close_on_exec): Eliminate. (read_pipe): Eliminate. (fhandler_pipe::close): Ditto. (fhandler_pipe::fixup_after_exec): Ditto. (fhandler_pipe::fixup_in_child): Ditto. (fhandler_pipe::read): Rework to use overlapped I/O. (fhandler_pipe::write): New function using overlapped I/O. (fhandler_pipe::dup): Rework to eliminate Win9x stuff. (fhandler_pipe::create_selectable): Rework to eliminate Win9x and use overlapped I/O. * select.cc (peek_pipe): Rework to eliminate Win9x stuff and use overlapped I/O. (fhandler_base::ready_for_read): Ditto.
2007-07-08 01:00:33 +08:00
{
* sigproc.h (wait_for_sigthread): Eliminate parameter. * sigproc.cc (wait_for_sigthread): Ditto. Don't synchronize with wait_sig after receiving an event that it is ready to go. (init_sig_pipe): New function. (wait_sig): Call init_sig_pipe to create pipes for communicating signals to this process. Don't send sigCONT signal when initializing. * fork.cc (frok::child): Accommodate wait_for_sigpipe parameter change. * fhandler.h (fhandler_*::write): Make ssize_t/__stdcall. (fhandler_*::write_overlapped): Ditto. (fhandler_*::raw_write): Ditto. (fhandler_*::readv): Ditto. (fhandler_*::writev): Ditto. (fhandler_*::raw_read): Make __stdcall. * fhandler: Accommodate changes to read/write functions throughout. * fhandler_clipboard.cc: Ditto. * fhandler_console.cc: Ditto. * fhandler_dsp.cc: Ditto. * fhandler_fifo.cc: Ditto. * fhandler_mailslot.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_random.cc: Ditto. * fhandler_tape.cc: Ditto. * fhandler_tty.cc: Ditto. * fhandler_virtual.cc: Ditto. * fhandler_windows.cc: Ditto. * fhandler_zero.cc: Ditto. * syscalls.cc (readv): Use ssize_t as temp variable. * fhandler.cc (fhandler_base::read): Coerce returned len to signed or it will never be treated as < 0. (fhandler_base::wait_overlapped): Minimize calls to GetLastError. Remove duplicate debugging test. Fix error return. * fhandler.h (fhandler_fifo::fifo_name): Declare new function. (fhandler_fifo::close): Ditto. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto. * fhandler.cc (fhandler_fifo::fifo_name): Define new function. (FIFO_BUF_SIZE): New define. (cnp): Ditto. (fhandler_fifo::open): Rework. Use cnp to open named pipe. Always open write side as a client. Open dummy client when writing and can't connect. (wait): Rework. Implement fifo_wait_for_next_client. Handle signals during connect better. Add new fifo_wait_for_server code which polls (sigh) waiting for server. (fhandler_fifo::raw_read): Handle transition states when one client closes and another is available. (fhandler_fifo::close): Define. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto.
2009-07-25 04:54:33 +08:00
CloseHandle (h);
Preliminary change to make fifos/pipes interruptible and fifos reliable. * dtable.cc (dtable::find_fifo): Eliminate definition. * dtable.h (dtable::find_fifo): Ditto for declaration. * fhandler.cc (fhandler_base::raw_read): Remove pipe-specific stuff. (fhandler_base::fhandler_base): Ditto. (fhandler_base::close): Handle overlapped I/O structure if appropriate. (fhandler_base::dup): Ditto. (fhandler_base::fork_fixup): Ditto. (fhandler_base::setup_overlapped): Define new function. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. * fhandler.h (fhandler_base::get_overlapped): Declare new function. (fhandler_base::setup_overlapped): Ditto. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. (fhandler_base::get_guard): Eliminate. (fhandler_pipe::*): Rework to eliminate most Win9x related cruft, removing many variables and defining a new overlapped capability. (fhandler_fifo::*): Ditto. (fifo_state): Declare new enum. * fhandler_fifo.cc (fhandler_fifo::fhandler_fifo): Remove old Win9x stuff. Initialize overlapped handle to NULL. (fhandler_fifo::set_use): Eliminate. (fhandler_fifo::open_nonserver): Define. (fhandler_fifo::open): Rework to use named pipes and overlapped I/O. (fhandler_fifo::wait): Define new function to wait for named pipe connection. (fhandler_fifo::read): Rework to use wait() and new overlapped I/O functionality. (fhandler_fifo::write): Ditto. (fhandler_fifo::dup): Eliminate. * pinfo.cc (commune_process): Remove fifo handling. (_pinfo::commune_request): Ditto. * pinfo.h (picom): Ditto. * pipe.cc (fhandler_pipe::fhandler_pipe): Remove Win9x stuff. Initialize overlapped handle to NULL. (fhandler_pipe::open): Eliminate Win9x stuff. (fhandler_pipe::set_close_on_exec): Eliminate. (read_pipe): Eliminate. (fhandler_pipe::close): Ditto. (fhandler_pipe::fixup_after_exec): Ditto. (fhandler_pipe::fixup_in_child): Ditto. (fhandler_pipe::read): Rework to use overlapped I/O. (fhandler_pipe::write): New function using overlapped I/O. (fhandler_pipe::dup): Rework to eliminate Win9x stuff. (fhandler_pipe::create_selectable): Rework to eliminate Win9x and use overlapped I/O. * select.cc (peek_pipe): Rework to eliminate Win9x stuff and use overlapped I/O. (fhandler_base::ready_for_read): Ditto.
2007-07-08 01:00:33 +08:00
__seterrno ();
res = 0;
}
else
{
set_io_handle (h);
set_flags (flags);
res = 1;
}
}
Preliminary change to make fifos/pipes interruptible and fifos reliable. * dtable.cc (dtable::find_fifo): Eliminate definition. * dtable.h (dtable::find_fifo): Ditto for declaration. * fhandler.cc (fhandler_base::raw_read): Remove pipe-specific stuff. (fhandler_base::fhandler_base): Ditto. (fhandler_base::close): Handle overlapped I/O structure if appropriate. (fhandler_base::dup): Ditto. (fhandler_base::fork_fixup): Ditto. (fhandler_base::setup_overlapped): Define new function. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. * fhandler.h (fhandler_base::get_overlapped): Declare new function. (fhandler_base::setup_overlapped): Ditto. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. (fhandler_base::get_guard): Eliminate. (fhandler_pipe::*): Rework to eliminate most Win9x related cruft, removing many variables and defining a new overlapped capability. (fhandler_fifo::*): Ditto. (fifo_state): Declare new enum. * fhandler_fifo.cc (fhandler_fifo::fhandler_fifo): Remove old Win9x stuff. Initialize overlapped handle to NULL. (fhandler_fifo::set_use): Eliminate. (fhandler_fifo::open_nonserver): Define. (fhandler_fifo::open): Rework to use named pipes and overlapped I/O. (fhandler_fifo::wait): Define new function to wait for named pipe connection. (fhandler_fifo::read): Rework to use wait() and new overlapped I/O functionality. (fhandler_fifo::write): Ditto. (fhandler_fifo::dup): Eliminate. * pinfo.cc (commune_process): Remove fifo handling. (_pinfo::commune_request): Ditto. * pinfo.h (picom): Ditto. * pipe.cc (fhandler_pipe::fhandler_pipe): Remove Win9x stuff. Initialize overlapped handle to NULL. (fhandler_pipe::open): Eliminate Win9x stuff. (fhandler_pipe::set_close_on_exec): Eliminate. (read_pipe): Eliminate. (fhandler_pipe::close): Ditto. (fhandler_pipe::fixup_after_exec): Ditto. (fhandler_pipe::fixup_in_child): Ditto. (fhandler_pipe::read): Rework to use overlapped I/O. (fhandler_pipe::write): New function using overlapped I/O. (fhandler_pipe::dup): Rework to eliminate Win9x stuff. (fhandler_pipe::create_selectable): Rework to eliminate Win9x and use overlapped I/O. * select.cc (peek_pipe): Rework to eliminate Win9x stuff and use overlapped I/O. (fhandler_base::ready_for_read): Ditto.
2007-07-08 01:00:33 +08:00
debug_printf ("returning %d, errno %d", res, get_errno ());
return res;
}
Preliminary change to make fifos/pipes interruptible and fifos reliable. * dtable.cc (dtable::find_fifo): Eliminate definition. * dtable.h (dtable::find_fifo): Ditto for declaration. * fhandler.cc (fhandler_base::raw_read): Remove pipe-specific stuff. (fhandler_base::fhandler_base): Ditto. (fhandler_base::close): Handle overlapped I/O structure if appropriate. (fhandler_base::dup): Ditto. (fhandler_base::fork_fixup): Ditto. (fhandler_base::setup_overlapped): Define new function. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. * fhandler.h (fhandler_base::get_overlapped): Declare new function. (fhandler_base::setup_overlapped): Ditto. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. (fhandler_base::get_guard): Eliminate. (fhandler_pipe::*): Rework to eliminate most Win9x related cruft, removing many variables and defining a new overlapped capability. (fhandler_fifo::*): Ditto. (fifo_state): Declare new enum. * fhandler_fifo.cc (fhandler_fifo::fhandler_fifo): Remove old Win9x stuff. Initialize overlapped handle to NULL. (fhandler_fifo::set_use): Eliminate. (fhandler_fifo::open_nonserver): Define. (fhandler_fifo::open): Rework to use named pipes and overlapped I/O. (fhandler_fifo::wait): Define new function to wait for named pipe connection. (fhandler_fifo::read): Rework to use wait() and new overlapped I/O functionality. (fhandler_fifo::write): Ditto. (fhandler_fifo::dup): Eliminate. * pinfo.cc (commune_process): Remove fifo handling. (_pinfo::commune_request): Ditto. * pinfo.h (picom): Ditto. * pipe.cc (fhandler_pipe::fhandler_pipe): Remove Win9x stuff. Initialize overlapped handle to NULL. (fhandler_pipe::open): Eliminate Win9x stuff. (fhandler_pipe::set_close_on_exec): Eliminate. (read_pipe): Eliminate. (fhandler_pipe::close): Ditto. (fhandler_pipe::fixup_after_exec): Ditto. (fhandler_pipe::fixup_in_child): Ditto. (fhandler_pipe::read): Rework to use overlapped I/O. (fhandler_pipe::write): New function using overlapped I/O. (fhandler_pipe::dup): Rework to eliminate Win9x stuff. (fhandler_pipe::create_selectable): Rework to eliminate Win9x and use overlapped I/O. * select.cc (peek_pipe): Rework to eliminate Win9x stuff and use overlapped I/O. (fhandler_base::ready_for_read): Ditto.
2007-07-08 01:00:33 +08:00
bool
fhandler_fifo::wait (bool iswrite)
{
* sigproc.h (wait_for_sigthread): Eliminate parameter. * sigproc.cc (wait_for_sigthread): Ditto. Don't synchronize with wait_sig after receiving an event that it is ready to go. (init_sig_pipe): New function. (wait_sig): Call init_sig_pipe to create pipes for communicating signals to this process. Don't send sigCONT signal when initializing. * fork.cc (frok::child): Accommodate wait_for_sigpipe parameter change. * fhandler.h (fhandler_*::write): Make ssize_t/__stdcall. (fhandler_*::write_overlapped): Ditto. (fhandler_*::raw_write): Ditto. (fhandler_*::readv): Ditto. (fhandler_*::writev): Ditto. (fhandler_*::raw_read): Make __stdcall. * fhandler: Accommodate changes to read/write functions throughout. * fhandler_clipboard.cc: Ditto. * fhandler_console.cc: Ditto. * fhandler_dsp.cc: Ditto. * fhandler_fifo.cc: Ditto. * fhandler_mailslot.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_random.cc: Ditto. * fhandler_tape.cc: Ditto. * fhandler_tty.cc: Ditto. * fhandler_virtual.cc: Ditto. * fhandler_windows.cc: Ditto. * fhandler_zero.cc: Ditto. * syscalls.cc (readv): Use ssize_t as temp variable. * fhandler.cc (fhandler_base::read): Coerce returned len to signed or it will never be treated as < 0. (fhandler_base::wait_overlapped): Minimize calls to GetLastError. Remove duplicate debugging test. Fix error return. * fhandler.h (fhandler_fifo::fifo_name): Declare new function. (fhandler_fifo::close): Ditto. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto. * fhandler.cc (fhandler_fifo::fifo_name): Define new function. (FIFO_BUF_SIZE): New define. (cnp): Ditto. (fhandler_fifo::open): Rework. Use cnp to open named pipe. Always open write side as a client. Open dummy client when writing and can't connect. (wait): Rework. Implement fifo_wait_for_next_client. Handle signals during connect better. Add new fifo_wait_for_server code which polls (sigh) waiting for server. (fhandler_fifo::raw_read): Handle transition states when one client closes and another is available. (fhandler_fifo::close): Define. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto.
2009-07-25 04:54:33 +08:00
DWORD ninstances;
Preliminary change to make fifos/pipes interruptible and fifos reliable. * dtable.cc (dtable::find_fifo): Eliminate definition. * dtable.h (dtable::find_fifo): Ditto for declaration. * fhandler.cc (fhandler_base::raw_read): Remove pipe-specific stuff. (fhandler_base::fhandler_base): Ditto. (fhandler_base::close): Handle overlapped I/O structure if appropriate. (fhandler_base::dup): Ditto. (fhandler_base::fork_fixup): Ditto. (fhandler_base::setup_overlapped): Define new function. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. * fhandler.h (fhandler_base::get_overlapped): Declare new function. (fhandler_base::setup_overlapped): Ditto. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. (fhandler_base::get_guard): Eliminate. (fhandler_pipe::*): Rework to eliminate most Win9x related cruft, removing many variables and defining a new overlapped capability. (fhandler_fifo::*): Ditto. (fifo_state): Declare new enum. * fhandler_fifo.cc (fhandler_fifo::fhandler_fifo): Remove old Win9x stuff. Initialize overlapped handle to NULL. (fhandler_fifo::set_use): Eliminate. (fhandler_fifo::open_nonserver): Define. (fhandler_fifo::open): Rework to use named pipes and overlapped I/O. (fhandler_fifo::wait): Define new function to wait for named pipe connection. (fhandler_fifo::read): Rework to use wait() and new overlapped I/O functionality. (fhandler_fifo::write): Ditto. (fhandler_fifo::dup): Eliminate. * pinfo.cc (commune_process): Remove fifo handling. (_pinfo::commune_request): Ditto. * pinfo.h (picom): Ditto. * pipe.cc (fhandler_pipe::fhandler_pipe): Remove Win9x stuff. Initialize overlapped handle to NULL. (fhandler_pipe::open): Eliminate Win9x stuff. (fhandler_pipe::set_close_on_exec): Eliminate. (read_pipe): Eliminate. (fhandler_pipe::close): Ditto. (fhandler_pipe::fixup_after_exec): Ditto. (fhandler_pipe::fixup_in_child): Ditto. (fhandler_pipe::read): Rework to use overlapped I/O. (fhandler_pipe::write): New function using overlapped I/O. (fhandler_pipe::dup): Rework to eliminate Win9x stuff. (fhandler_pipe::create_selectable): Rework to eliminate Win9x and use overlapped I/O. * select.cc (peek_pipe): Rework to eliminate Win9x stuff and use overlapped I/O. (fhandler_base::ready_for_read): Ditto.
2007-07-08 01:00:33 +08:00
switch (wait_state)
{
* sigproc.h (wait_for_sigthread): Eliminate parameter. * sigproc.cc (wait_for_sigthread): Ditto. Don't synchronize with wait_sig after receiving an event that it is ready to go. (init_sig_pipe): New function. (wait_sig): Call init_sig_pipe to create pipes for communicating signals to this process. Don't send sigCONT signal when initializing. * fork.cc (frok::child): Accommodate wait_for_sigpipe parameter change. * fhandler.h (fhandler_*::write): Make ssize_t/__stdcall. (fhandler_*::write_overlapped): Ditto. (fhandler_*::raw_write): Ditto. (fhandler_*::readv): Ditto. (fhandler_*::writev): Ditto. (fhandler_*::raw_read): Make __stdcall. * fhandler: Accommodate changes to read/write functions throughout. * fhandler_clipboard.cc: Ditto. * fhandler_console.cc: Ditto. * fhandler_dsp.cc: Ditto. * fhandler_fifo.cc: Ditto. * fhandler_mailslot.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_random.cc: Ditto. * fhandler_tape.cc: Ditto. * fhandler_tty.cc: Ditto. * fhandler_virtual.cc: Ditto. * fhandler_windows.cc: Ditto. * fhandler_zero.cc: Ditto. * syscalls.cc (readv): Use ssize_t as temp variable. * fhandler.cc (fhandler_base::read): Coerce returned len to signed or it will never be treated as < 0. (fhandler_base::wait_overlapped): Minimize calls to GetLastError. Remove duplicate debugging test. Fix error return. * fhandler.h (fhandler_fifo::fifo_name): Declare new function. (fhandler_fifo::close): Ditto. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto. * fhandler.cc (fhandler_fifo::fifo_name): Define new function. (FIFO_BUF_SIZE): New define. (cnp): Ditto. (fhandler_fifo::open): Rework. Use cnp to open named pipe. Always open write side as a client. Open dummy client when writing and can't connect. (wait): Rework. Implement fifo_wait_for_next_client. Handle signals during connect better. Add new fifo_wait_for_server code which polls (sigh) waiting for server. (fhandler_fifo::raw_read): Handle transition states when one client closes and another is available. (fhandler_fifo::close): Define. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto.
2009-07-25 04:54:33 +08:00
case fifo_wait_for_next_client:
DisconnectNamedPipe (get_handle ());
if (!GetNamedPipeHandleState (get_handle (), NULL, &ninstances, NULL, NULL, NULL, 0))
{
__seterrno ();
wait_state = fifo_error;
return false;
}
if (ninstances <= 1)
{
wait_state = fifo_eof;
return false;
}
Preliminary change to make fifos/pipes interruptible and fifos reliable. * dtable.cc (dtable::find_fifo): Eliminate definition. * dtable.h (dtable::find_fifo): Ditto for declaration. * fhandler.cc (fhandler_base::raw_read): Remove pipe-specific stuff. (fhandler_base::fhandler_base): Ditto. (fhandler_base::close): Handle overlapped I/O structure if appropriate. (fhandler_base::dup): Ditto. (fhandler_base::fork_fixup): Ditto. (fhandler_base::setup_overlapped): Define new function. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. * fhandler.h (fhandler_base::get_overlapped): Declare new function. (fhandler_base::setup_overlapped): Ditto. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. (fhandler_base::get_guard): Eliminate. (fhandler_pipe::*): Rework to eliminate most Win9x related cruft, removing many variables and defining a new overlapped capability. (fhandler_fifo::*): Ditto. (fifo_state): Declare new enum. * fhandler_fifo.cc (fhandler_fifo::fhandler_fifo): Remove old Win9x stuff. Initialize overlapped handle to NULL. (fhandler_fifo::set_use): Eliminate. (fhandler_fifo::open_nonserver): Define. (fhandler_fifo::open): Rework to use named pipes and overlapped I/O. (fhandler_fifo::wait): Define new function to wait for named pipe connection. (fhandler_fifo::read): Rework to use wait() and new overlapped I/O functionality. (fhandler_fifo::write): Ditto. (fhandler_fifo::dup): Eliminate. * pinfo.cc (commune_process): Remove fifo handling. (_pinfo::commune_request): Ditto. * pinfo.h (picom): Ditto. * pipe.cc (fhandler_pipe::fhandler_pipe): Remove Win9x stuff. Initialize overlapped handle to NULL. (fhandler_pipe::open): Eliminate Win9x stuff. (fhandler_pipe::set_close_on_exec): Eliminate. (read_pipe): Eliminate. (fhandler_pipe::close): Ditto. (fhandler_pipe::fixup_after_exec): Ditto. (fhandler_pipe::fixup_in_child): Ditto. (fhandler_pipe::read): Rework to use overlapped I/O. (fhandler_pipe::write): New function using overlapped I/O. (fhandler_pipe::dup): Rework to eliminate Win9x stuff. (fhandler_pipe::create_selectable): Rework to eliminate Win9x and use overlapped I/O. * select.cc (peek_pipe): Rework to eliminate Win9x stuff and use overlapped I/O. (fhandler_base::ready_for_read): Ditto.
2007-07-08 01:00:33 +08:00
case fifo_wait_for_client:
* cygheap.cc (creturn): Reorganize to avoid a new compiler warning/error. * dtable.cc (handle_to_fn): Ditto. * fhandler_console.cc (fhandler_console::read): Ditto. (fhandler_console::scroll_screen): Ditto. (dev_console::set_color): Ditto. * fhandler_dsp.cc (fhandler_dev_dsp::write): Ditto. (fhandler_dev_dsp::read): Ditto. * fhandler_tape.cc (mtinfo_drive::get_status): Ditto. * hookapi.cc (find_first_notloaded_dll): Ditto. * mmap.cc (msync): Ditto. * pipe.cc (pipesync::pipesync): Ditto. * sec_acl.cc (getace): Ditto. * sec_auth.cc (create_token): Ditto. (lsaauth): Ditto. * select.cc (peek_pipe): Ditto. * spawn.cc (av::fixup): Ditto. * syscalls.cc (popen): Ditto. * tty.cc (tty::init_session): Ditto. * uinfo.cc (pwdgrp::load): Ditto. * fhandler.cc (fhandler_base::setup_overlapped): Ditto. (fhandler_base::wait_overlapped): Rename second use of res variable to wres or errors are not returned correctly. * dcrt0.cc: Remove obsolete variable. * dll_init.cc (release_upto): Fix typo involving incorrect use of '|'. * fhandler_disk_file.cc (fhandler_base::fstat_by_handle): Avoid a compiler warning regarding coercing type-punned variables. (fhandler_base::fstat_by_name): Ditto. fhandler_fifo.cc (fhandler_fifo::open_nonserver): Fix = vs. == typo. (fhandler_fifo::wait): Add all conditions to switch statement to avoid a compiler warning. * fhandler_process.cc: Avoid unneeded initialization of variables to zero. (fhandler_socket::listen): Add braces around initializer. * flock.cc (inode_t::get_all_locks_list): Reorganize to avoid a compiler warning. Fix problem with EWOULDBLOCK error return. * path.cc (GUID_shortcut): Use braces around struct initializer. (cygwin_conv_path): Reorganize to avoid a compiler warning. * random.cc (dummy): Mark variable as volatile to avoid a "used uninitialized" warning. * libc/getopt.c: Mark some variables as dllexport although gcc doesn't seem to do the right thing with them. * libc/minires-os-if.c (get_registry_dns_items): Coerce some function arguments to avoid a compiler warning.
2008-09-11 12:34:24 +08:00
{
2009-07-18 06:51:28 +08:00
DWORD dummy_bytes;
* sigproc.h (wait_for_sigthread): Eliminate parameter. * sigproc.cc (wait_for_sigthread): Ditto. Don't synchronize with wait_sig after receiving an event that it is ready to go. (init_sig_pipe): New function. (wait_sig): Call init_sig_pipe to create pipes for communicating signals to this process. Don't send sigCONT signal when initializing. * fork.cc (frok::child): Accommodate wait_for_sigpipe parameter change. * fhandler.h (fhandler_*::write): Make ssize_t/__stdcall. (fhandler_*::write_overlapped): Ditto. (fhandler_*::raw_write): Ditto. (fhandler_*::readv): Ditto. (fhandler_*::writev): Ditto. (fhandler_*::raw_read): Make __stdcall. * fhandler: Accommodate changes to read/write functions throughout. * fhandler_clipboard.cc: Ditto. * fhandler_console.cc: Ditto. * fhandler_dsp.cc: Ditto. * fhandler_fifo.cc: Ditto. * fhandler_mailslot.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_random.cc: Ditto. * fhandler_tape.cc: Ditto. * fhandler_tty.cc: Ditto. * fhandler_virtual.cc: Ditto. * fhandler_windows.cc: Ditto. * fhandler_zero.cc: Ditto. * syscalls.cc (readv): Use ssize_t as temp variable. * fhandler.cc (fhandler_base::read): Coerce returned len to signed or it will never be treated as < 0. (fhandler_base::wait_overlapped): Minimize calls to GetLastError. Remove duplicate debugging test. Fix error return. * fhandler.h (fhandler_fifo::fifo_name): Declare new function. (fhandler_fifo::close): Ditto. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto. * fhandler.cc (fhandler_fifo::fifo_name): Define new function. (FIFO_BUF_SIZE): New define. (cnp): Ditto. (fhandler_fifo::open): Rework. Use cnp to open named pipe. Always open write side as a client. Open dummy client when writing and can't connect. (wait): Rework. Implement fifo_wait_for_next_client. Handle signals during connect better. Add new fifo_wait_for_server code which polls (sigh) waiting for server. (fhandler_fifo::raw_read): Handle transition states when one client closes and another is available. (fhandler_fifo::close): Define. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto.
2009-07-25 04:54:33 +08:00
while (1)
{
int res = ConnectNamedPipe (get_handle (), get_overlapped ());
if (GetLastError () != ERROR_NO_DATA && GetLastError () != ERROR_PIPE_CONNECTED)
{
res = wait_overlapped (res, iswrite, &dummy_bytes);
if (!res)
{
if (get_errno () != EINTR)
wait_state = fifo_error;
else if (!_my_tls.call_signal_handler ())
wait_state = fifo_eintr;
else
continue;
return false;
}
}
wait_state = fifo_ok;
break;
}
* cygheap.cc (creturn): Reorganize to avoid a new compiler warning/error. * dtable.cc (handle_to_fn): Ditto. * fhandler_console.cc (fhandler_console::read): Ditto. (fhandler_console::scroll_screen): Ditto. (dev_console::set_color): Ditto. * fhandler_dsp.cc (fhandler_dev_dsp::write): Ditto. (fhandler_dev_dsp::read): Ditto. * fhandler_tape.cc (mtinfo_drive::get_status): Ditto. * hookapi.cc (find_first_notloaded_dll): Ditto. * mmap.cc (msync): Ditto. * pipe.cc (pipesync::pipesync): Ditto. * sec_acl.cc (getace): Ditto. * sec_auth.cc (create_token): Ditto. (lsaauth): Ditto. * select.cc (peek_pipe): Ditto. * spawn.cc (av::fixup): Ditto. * syscalls.cc (popen): Ditto. * tty.cc (tty::init_session): Ditto. * uinfo.cc (pwdgrp::load): Ditto. * fhandler.cc (fhandler_base::setup_overlapped): Ditto. (fhandler_base::wait_overlapped): Rename second use of res variable to wres or errors are not returned correctly. * dcrt0.cc: Remove obsolete variable. * dll_init.cc (release_upto): Fix typo involving incorrect use of '|'. * fhandler_disk_file.cc (fhandler_base::fstat_by_handle): Avoid a compiler warning regarding coercing type-punned variables. (fhandler_base::fstat_by_name): Ditto. fhandler_fifo.cc (fhandler_fifo::open_nonserver): Fix = vs. == typo. (fhandler_fifo::wait): Add all conditions to switch statement to avoid a compiler warning. * fhandler_process.cc: Avoid unneeded initialization of variables to zero. (fhandler_socket::listen): Add braces around initializer. * flock.cc (inode_t::get_all_locks_list): Reorganize to avoid a compiler warning. Fix problem with EWOULDBLOCK error return. * path.cc (GUID_shortcut): Use braces around struct initializer. (cygwin_conv_path): Reorganize to avoid a compiler warning. * random.cc (dummy): Mark variable as volatile to avoid a "used uninitialized" warning. * libc/getopt.c: Mark some variables as dllexport although gcc doesn't seem to do the right thing with them. * libc/minires-os-if.c (get_registry_dns_items): Coerce some function arguments to avoid a compiler warning.
2008-09-11 12:34:24 +08:00
}
* sigproc.h (wait_for_sigthread): Eliminate parameter. * sigproc.cc (wait_for_sigthread): Ditto. Don't synchronize with wait_sig after receiving an event that it is ready to go. (init_sig_pipe): New function. (wait_sig): Call init_sig_pipe to create pipes for communicating signals to this process. Don't send sigCONT signal when initializing. * fork.cc (frok::child): Accommodate wait_for_sigpipe parameter change. * fhandler.h (fhandler_*::write): Make ssize_t/__stdcall. (fhandler_*::write_overlapped): Ditto. (fhandler_*::raw_write): Ditto. (fhandler_*::readv): Ditto. (fhandler_*::writev): Ditto. (fhandler_*::raw_read): Make __stdcall. * fhandler: Accommodate changes to read/write functions throughout. * fhandler_clipboard.cc: Ditto. * fhandler_console.cc: Ditto. * fhandler_dsp.cc: Ditto. * fhandler_fifo.cc: Ditto. * fhandler_mailslot.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_random.cc: Ditto. * fhandler_tape.cc: Ditto. * fhandler_tty.cc: Ditto. * fhandler_virtual.cc: Ditto. * fhandler_windows.cc: Ditto. * fhandler_zero.cc: Ditto. * syscalls.cc (readv): Use ssize_t as temp variable. * fhandler.cc (fhandler_base::read): Coerce returned len to signed or it will never be treated as < 0. (fhandler_base::wait_overlapped): Minimize calls to GetLastError. Remove duplicate debugging test. Fix error return. * fhandler.h (fhandler_fifo::fifo_name): Declare new function. (fhandler_fifo::close): Ditto. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto. * fhandler.cc (fhandler_fifo::fifo_name): Define new function. (FIFO_BUF_SIZE): New define. (cnp): Ditto. (fhandler_fifo::open): Rework. Use cnp to open named pipe. Always open write side as a client. Open dummy client when writing and can't connect. (wait): Rework. Implement fifo_wait_for_next_client. Handle signals during connect better. Add new fifo_wait_for_server code which polls (sigh) waiting for server. (fhandler_fifo::raw_read): Handle transition states when one client closes and another is available. (fhandler_fifo::close): Define. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto.
2009-07-25 04:54:33 +08:00
break;
* cygheap.cc (creturn): Reorganize to avoid a new compiler warning/error. * dtable.cc (handle_to_fn): Ditto. * fhandler_console.cc (fhandler_console::read): Ditto. (fhandler_console::scroll_screen): Ditto. (dev_console::set_color): Ditto. * fhandler_dsp.cc (fhandler_dev_dsp::write): Ditto. (fhandler_dev_dsp::read): Ditto. * fhandler_tape.cc (mtinfo_drive::get_status): Ditto. * hookapi.cc (find_first_notloaded_dll): Ditto. * mmap.cc (msync): Ditto. * pipe.cc (pipesync::pipesync): Ditto. * sec_acl.cc (getace): Ditto. * sec_auth.cc (create_token): Ditto. (lsaauth): Ditto. * select.cc (peek_pipe): Ditto. * spawn.cc (av::fixup): Ditto. * syscalls.cc (popen): Ditto. * tty.cc (tty::init_session): Ditto. * uinfo.cc (pwdgrp::load): Ditto. * fhandler.cc (fhandler_base::setup_overlapped): Ditto. (fhandler_base::wait_overlapped): Rename second use of res variable to wres or errors are not returned correctly. * dcrt0.cc: Remove obsolete variable. * dll_init.cc (release_upto): Fix typo involving incorrect use of '|'. * fhandler_disk_file.cc (fhandler_base::fstat_by_handle): Avoid a compiler warning regarding coercing type-punned variables. (fhandler_base::fstat_by_name): Ditto. fhandler_fifo.cc (fhandler_fifo::open_nonserver): Fix = vs. == typo. (fhandler_fifo::wait): Add all conditions to switch statement to avoid a compiler warning. * fhandler_process.cc: Avoid unneeded initialization of variables to zero. (fhandler_socket::listen): Add braces around initializer. * flock.cc (inode_t::get_all_locks_list): Reorganize to avoid a compiler warning. Fix problem with EWOULDBLOCK error return. * path.cc (GUID_shortcut): Use braces around struct initializer. (cygwin_conv_path): Reorganize to avoid a compiler warning. * random.cc (dummy): Mark variable as volatile to avoid a "used uninitialized" warning. * libc/getopt.c: Mark some variables as dllexport although gcc doesn't seem to do the right thing with them. * libc/minires-os-if.c (get_registry_dns_items): Coerce some function arguments to avoid a compiler warning.
2008-09-11 12:34:24 +08:00
case fifo_wait_for_server:
* sigproc.h (wait_for_sigthread): Eliminate parameter. * sigproc.cc (wait_for_sigthread): Ditto. Don't synchronize with wait_sig after receiving an event that it is ready to go. (init_sig_pipe): New function. (wait_sig): Call init_sig_pipe to create pipes for communicating signals to this process. Don't send sigCONT signal when initializing. * fork.cc (frok::child): Accommodate wait_for_sigpipe parameter change. * fhandler.h (fhandler_*::write): Make ssize_t/__stdcall. (fhandler_*::write_overlapped): Ditto. (fhandler_*::raw_write): Ditto. (fhandler_*::readv): Ditto. (fhandler_*::writev): Ditto. (fhandler_*::raw_read): Make __stdcall. * fhandler: Accommodate changes to read/write functions throughout. * fhandler_clipboard.cc: Ditto. * fhandler_console.cc: Ditto. * fhandler_dsp.cc: Ditto. * fhandler_fifo.cc: Ditto. * fhandler_mailslot.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_random.cc: Ditto. * fhandler_tape.cc: Ditto. * fhandler_tty.cc: Ditto. * fhandler_virtual.cc: Ditto. * fhandler_windows.cc: Ditto. * fhandler_zero.cc: Ditto. * syscalls.cc (readv): Use ssize_t as temp variable. * fhandler.cc (fhandler_base::read): Coerce returned len to signed or it will never be treated as < 0. (fhandler_base::wait_overlapped): Minimize calls to GetLastError. Remove duplicate debugging test. Fix error return. * fhandler.h (fhandler_fifo::fifo_name): Declare new function. (fhandler_fifo::close): Ditto. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto. * fhandler.cc (fhandler_fifo::fifo_name): Define new function. (FIFO_BUF_SIZE): New define. (cnp): Ditto. (fhandler_fifo::open): Rework. Use cnp to open named pipe. Always open write side as a client. Open dummy client when writing and can't connect. (wait): Rework. Implement fifo_wait_for_next_client. Handle signals during connect better. Add new fifo_wait_for_server code which polls (sigh) waiting for server. (fhandler_fifo::raw_read): Handle transition states when one client closes and another is available. (fhandler_fifo::close): Define. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto.
2009-07-25 04:54:33 +08:00
char npname[MAX_PATH];
fifo_name (npname);
char char_sa_buf[1024];
LPSECURITY_ATTRIBUTES sa_buf;
* cygwin.din (dup3): Export. (pipe2): Export. * dtable.cc (dtable::dup_worker): Take additional flags parameter. Handle O_CLOEXEC flag. (dtable::dup3): Rename from dup2. Take additional flags parameter. Check for valid flags. Drop check for newfd == oldfd. * dtable.h (dtable::dup_worker): Add flags parameter. (dtable::dup3): Rename from dup2. * fcntl.cc (fcntl64): Add F_DUPFD_CLOEXEC case. * fhandler.h (fhandler_mailslot::get_object_attr): Add flags parameter. * fhandler.cc (fhandler_base::open): Use security attribute with inheritance according to setting of O_CLOEXEC flag. * fhandler_console.cc (fhandler_console::open): Ditto. * fhandler_fifo.cc (sec_user_cloexec): New inline function to create security attribute with inheritance according to setting of O_CLOEXEC flag. (fhandler_fifo::open): Call sec_user_cloexec to fetch security attribute. (fhandler_fifo::wait): Ditto. * fhandler_mem.cc (fhandler_dev_mem::open): Ditto. * fhandler_mailslot.cc (fhandler_mailslot::get_object_attr): Take additional flags parameter. Use security attribute with inheritance according to setting of O_CLOEXEC flag. (fhandler_mailslot::open): Call get_object_attr with flags parameter. * fhandler_registry.cc (fhandler_registry::open): Call set_close_on_exec on real handles to accommodate O_CLOEXEC flag. * fhandler_tty.cc (fhandler_tty_slave::open): Ditto. * fhandler_tape.cc: Create mutex with inheritance according to setting of O_CLOEXEC flag. * pipe.cc: Replace usage of O_NOINHERIT with O_CLOEXEC. (fhandler_pipe::init): Simplify setting close_on_exec flag. (fhandler_pipe::open): Remove setting close_on_exec flag. (fhandler_pipe::create): Use security attribute with inheritance according to setting of O_CLOEXEC flag. (pipe2): New exported function. * posix_ipc.cc: Throughout, open backing files with O_CLOEXEC flag to follow POSIX semantics. * security.h (sec_none_cloexec): New define. * syscalls.cc (dup): Add missing extern "C" qualifier. Accommodate renaming of dtable::dup2 to dtable::dup3. (dup2): Ditto. Check newfd == oldfd here. (dup3): New function. Check newfd == oldfd here. (open): Set close_on_exec flag according to O_CLOEXEC flag before calling fhandler->open. * include/cygwin/version.h (CYGWIN_VERSION_API_MINOR): Bump.
2010-01-15 02:46:02 +08:00
sa_buf = sec_user_cloexec (close_on_exec (),
(PSECURITY_ATTRIBUTES) char_sa_buf,
cygheap->user.sid());
* sigproc.h (wait_for_sigthread): Eliminate parameter. * sigproc.cc (wait_for_sigthread): Ditto. Don't synchronize with wait_sig after receiving an event that it is ready to go. (init_sig_pipe): New function. (wait_sig): Call init_sig_pipe to create pipes for communicating signals to this process. Don't send sigCONT signal when initializing. * fork.cc (frok::child): Accommodate wait_for_sigpipe parameter change. * fhandler.h (fhandler_*::write): Make ssize_t/__stdcall. (fhandler_*::write_overlapped): Ditto. (fhandler_*::raw_write): Ditto. (fhandler_*::readv): Ditto. (fhandler_*::writev): Ditto. (fhandler_*::raw_read): Make __stdcall. * fhandler: Accommodate changes to read/write functions throughout. * fhandler_clipboard.cc: Ditto. * fhandler_console.cc: Ditto. * fhandler_dsp.cc: Ditto. * fhandler_fifo.cc: Ditto. * fhandler_mailslot.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_random.cc: Ditto. * fhandler_tape.cc: Ditto. * fhandler_tty.cc: Ditto. * fhandler_virtual.cc: Ditto. * fhandler_windows.cc: Ditto. * fhandler_zero.cc: Ditto. * syscalls.cc (readv): Use ssize_t as temp variable. * fhandler.cc (fhandler_base::read): Coerce returned len to signed or it will never be treated as < 0. (fhandler_base::wait_overlapped): Minimize calls to GetLastError. Remove duplicate debugging test. Fix error return. * fhandler.h (fhandler_fifo::fifo_name): Declare new function. (fhandler_fifo::close): Ditto. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto. * fhandler.cc (fhandler_fifo::fifo_name): Define new function. (FIFO_BUF_SIZE): New define. (cnp): Ditto. (fhandler_fifo::open): Rework. Use cnp to open named pipe. Always open write side as a client. Open dummy client when writing and can't connect. (wait): Rework. Implement fifo_wait_for_next_client. Handle signals during connect better. Add new fifo_wait_for_server code which polls (sigh) waiting for server. (fhandler_fifo::raw_read): Handle transition states when one client closes and another is available. (fhandler_fifo::close): Define. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto.
2009-07-25 04:54:33 +08:00
while (1)
{
if (WaitNamedPipe (npname, 10))
/* connected, maybe */;
else if (GetLastError () != ERROR_SEM_TIMEOUT)
{
__seterrno ();
return false;
}
else if (WaitForSingleObject (signal_arrived, 0) != WAIT_OBJECT_0)
continue;
else if (_my_tls.call_signal_handler ())
continue;
else
{
set_errno (EINTR);
return false;
}
HANDLE h = open_nonserver (npname, get_flags () & O_ACCMODE, sa_buf);
if (h != INVALID_HANDLE_VALUE)
{
ForceCloseHandle (get_handle ());
ForceCloseHandle (dummy_client);
dummy_client = NULL;
wait_state = fifo_ok;
set_io_handle (h);
break;
}
if (GetLastError () == ERROR_PIPE_LISTENING)
continue;
else
{
__seterrno ();
return false;
}
}
Preliminary change to make fifos/pipes interruptible and fifos reliable. * dtable.cc (dtable::find_fifo): Eliminate definition. * dtable.h (dtable::find_fifo): Ditto for declaration. * fhandler.cc (fhandler_base::raw_read): Remove pipe-specific stuff. (fhandler_base::fhandler_base): Ditto. (fhandler_base::close): Handle overlapped I/O structure if appropriate. (fhandler_base::dup): Ditto. (fhandler_base::fork_fixup): Ditto. (fhandler_base::setup_overlapped): Define new function. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. * fhandler.h (fhandler_base::get_overlapped): Declare new function. (fhandler_base::setup_overlapped): Ditto. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. (fhandler_base::get_guard): Eliminate. (fhandler_pipe::*): Rework to eliminate most Win9x related cruft, removing many variables and defining a new overlapped capability. (fhandler_fifo::*): Ditto. (fifo_state): Declare new enum. * fhandler_fifo.cc (fhandler_fifo::fhandler_fifo): Remove old Win9x stuff. Initialize overlapped handle to NULL. (fhandler_fifo::set_use): Eliminate. (fhandler_fifo::open_nonserver): Define. (fhandler_fifo::open): Rework to use named pipes and overlapped I/O. (fhandler_fifo::wait): Define new function to wait for named pipe connection. (fhandler_fifo::read): Rework to use wait() and new overlapped I/O functionality. (fhandler_fifo::write): Ditto. (fhandler_fifo::dup): Eliminate. * pinfo.cc (commune_process): Remove fifo handling. (_pinfo::commune_request): Ditto. * pinfo.h (picom): Ditto. * pipe.cc (fhandler_pipe::fhandler_pipe): Remove Win9x stuff. Initialize overlapped handle to NULL. (fhandler_pipe::open): Eliminate Win9x stuff. (fhandler_pipe::set_close_on_exec): Eliminate. (read_pipe): Eliminate. (fhandler_pipe::close): Ditto. (fhandler_pipe::fixup_after_exec): Ditto. (fhandler_pipe::fixup_in_child): Ditto. (fhandler_pipe::read): Rework to use overlapped I/O. (fhandler_pipe::write): New function using overlapped I/O. (fhandler_pipe::dup): Rework to eliminate Win9x stuff. (fhandler_pipe::create_selectable): Rework to eliminate Win9x and use overlapped I/O. * select.cc (peek_pipe): Rework to eliminate Win9x stuff and use overlapped I/O. (fhandler_base::ready_for_read): Ditto.
2007-07-08 01:00:33 +08:00
default:
break;
}
Preliminary change to make fifos/pipes interruptible and fifos reliable. * dtable.cc (dtable::find_fifo): Eliminate definition. * dtable.h (dtable::find_fifo): Ditto for declaration. * fhandler.cc (fhandler_base::raw_read): Remove pipe-specific stuff. (fhandler_base::fhandler_base): Ditto. (fhandler_base::close): Handle overlapped I/O structure if appropriate. (fhandler_base::dup): Ditto. (fhandler_base::fork_fixup): Ditto. (fhandler_base::setup_overlapped): Define new function. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. * fhandler.h (fhandler_base::get_overlapped): Declare new function. (fhandler_base::setup_overlapped): Ditto. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. (fhandler_base::get_guard): Eliminate. (fhandler_pipe::*): Rework to eliminate most Win9x related cruft, removing many variables and defining a new overlapped capability. (fhandler_fifo::*): Ditto. (fifo_state): Declare new enum. * fhandler_fifo.cc (fhandler_fifo::fhandler_fifo): Remove old Win9x stuff. Initialize overlapped handle to NULL. (fhandler_fifo::set_use): Eliminate. (fhandler_fifo::open_nonserver): Define. (fhandler_fifo::open): Rework to use named pipes and overlapped I/O. (fhandler_fifo::wait): Define new function to wait for named pipe connection. (fhandler_fifo::read): Rework to use wait() and new overlapped I/O functionality. (fhandler_fifo::write): Ditto. (fhandler_fifo::dup): Eliminate. * pinfo.cc (commune_process): Remove fifo handling. (_pinfo::commune_request): Ditto. * pinfo.h (picom): Ditto. * pipe.cc (fhandler_pipe::fhandler_pipe): Remove Win9x stuff. Initialize overlapped handle to NULL. (fhandler_pipe::open): Eliminate Win9x stuff. (fhandler_pipe::set_close_on_exec): Eliminate. (read_pipe): Eliminate. (fhandler_pipe::close): Ditto. (fhandler_pipe::fixup_after_exec): Ditto. (fhandler_pipe::fixup_in_child): Ditto. (fhandler_pipe::read): Rework to use overlapped I/O. (fhandler_pipe::write): New function using overlapped I/O. (fhandler_pipe::dup): Rework to eliminate Win9x stuff. (fhandler_pipe::create_selectable): Rework to eliminate Win9x and use overlapped I/O. * select.cc (peek_pipe): Rework to eliminate Win9x stuff and use overlapped I/O. (fhandler_base::ready_for_read): Ditto.
2007-07-08 01:00:33 +08:00
return true;
}
* sigproc.h (wait_for_sigthread): Eliminate parameter. * sigproc.cc (wait_for_sigthread): Ditto. Don't synchronize with wait_sig after receiving an event that it is ready to go. (init_sig_pipe): New function. (wait_sig): Call init_sig_pipe to create pipes for communicating signals to this process. Don't send sigCONT signal when initializing. * fork.cc (frok::child): Accommodate wait_for_sigpipe parameter change. * fhandler.h (fhandler_*::write): Make ssize_t/__stdcall. (fhandler_*::write_overlapped): Ditto. (fhandler_*::raw_write): Ditto. (fhandler_*::readv): Ditto. (fhandler_*::writev): Ditto. (fhandler_*::raw_read): Make __stdcall. * fhandler: Accommodate changes to read/write functions throughout. * fhandler_clipboard.cc: Ditto. * fhandler_console.cc: Ditto. * fhandler_dsp.cc: Ditto. * fhandler_fifo.cc: Ditto. * fhandler_mailslot.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_random.cc: Ditto. * fhandler_tape.cc: Ditto. * fhandler_tty.cc: Ditto. * fhandler_virtual.cc: Ditto. * fhandler_windows.cc: Ditto. * fhandler_zero.cc: Ditto. * syscalls.cc (readv): Use ssize_t as temp variable. * fhandler.cc (fhandler_base::read): Coerce returned len to signed or it will never be treated as < 0. (fhandler_base::wait_overlapped): Minimize calls to GetLastError. Remove duplicate debugging test. Fix error return. * fhandler.h (fhandler_fifo::fifo_name): Declare new function. (fhandler_fifo::close): Ditto. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto. * fhandler.cc (fhandler_fifo::fifo_name): Define new function. (FIFO_BUF_SIZE): New define. (cnp): Ditto. (fhandler_fifo::open): Rework. Use cnp to open named pipe. Always open write side as a client. Open dummy client when writing and can't connect. (wait): Rework. Implement fifo_wait_for_next_client. Handle signals during connect better. Add new fifo_wait_for_server code which polls (sigh) waiting for server. (fhandler_fifo::raw_read): Handle transition states when one client closes and another is available. (fhandler_fifo::close): Define. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto.
2009-07-25 04:54:33 +08:00
void __stdcall
fhandler_fifo::raw_read (void *in_ptr, size_t& len)
Preliminary change to make fifos/pipes interruptible and fifos reliable. * dtable.cc (dtable::find_fifo): Eliminate definition. * dtable.h (dtable::find_fifo): Ditto for declaration. * fhandler.cc (fhandler_base::raw_read): Remove pipe-specific stuff. (fhandler_base::fhandler_base): Ditto. (fhandler_base::close): Handle overlapped I/O structure if appropriate. (fhandler_base::dup): Ditto. (fhandler_base::fork_fixup): Ditto. (fhandler_base::setup_overlapped): Define new function. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. * fhandler.h (fhandler_base::get_overlapped): Declare new function. (fhandler_base::setup_overlapped): Ditto. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. (fhandler_base::get_guard): Eliminate. (fhandler_pipe::*): Rework to eliminate most Win9x related cruft, removing many variables and defining a new overlapped capability. (fhandler_fifo::*): Ditto. (fifo_state): Declare new enum. * fhandler_fifo.cc (fhandler_fifo::fhandler_fifo): Remove old Win9x stuff. Initialize overlapped handle to NULL. (fhandler_fifo::set_use): Eliminate. (fhandler_fifo::open_nonserver): Define. (fhandler_fifo::open): Rework to use named pipes and overlapped I/O. (fhandler_fifo::wait): Define new function to wait for named pipe connection. (fhandler_fifo::read): Rework to use wait() and new overlapped I/O functionality. (fhandler_fifo::write): Ditto. (fhandler_fifo::dup): Eliminate. * pinfo.cc (commune_process): Remove fifo handling. (_pinfo::commune_request): Ditto. * pinfo.h (picom): Ditto. * pipe.cc (fhandler_pipe::fhandler_pipe): Remove Win9x stuff. Initialize overlapped handle to NULL. (fhandler_pipe::open): Eliminate Win9x stuff. (fhandler_pipe::set_close_on_exec): Eliminate. (read_pipe): Eliminate. (fhandler_pipe::close): Ditto. (fhandler_pipe::fixup_after_exec): Ditto. (fhandler_pipe::fixup_in_child): Ditto. (fhandler_pipe::read): Rework to use overlapped I/O. (fhandler_pipe::write): New function using overlapped I/O. (fhandler_pipe::dup): Rework to eliminate Win9x stuff. (fhandler_pipe::create_selectable): Rework to eliminate Win9x and use overlapped I/O. * select.cc (peek_pipe): Rework to eliminate Win9x stuff and use overlapped I/O. (fhandler_base::ready_for_read): Ditto.
2007-07-08 01:00:33 +08:00
{
* sigproc.h (wait_for_sigthread): Eliminate parameter. * sigproc.cc (wait_for_sigthread): Ditto. Don't synchronize with wait_sig after receiving an event that it is ready to go. (init_sig_pipe): New function. (wait_sig): Call init_sig_pipe to create pipes for communicating signals to this process. Don't send sigCONT signal when initializing. * fork.cc (frok::child): Accommodate wait_for_sigpipe parameter change. * fhandler.h (fhandler_*::write): Make ssize_t/__stdcall. (fhandler_*::write_overlapped): Ditto. (fhandler_*::raw_write): Ditto. (fhandler_*::readv): Ditto. (fhandler_*::writev): Ditto. (fhandler_*::raw_read): Make __stdcall. * fhandler: Accommodate changes to read/write functions throughout. * fhandler_clipboard.cc: Ditto. * fhandler_console.cc: Ditto. * fhandler_dsp.cc: Ditto. * fhandler_fifo.cc: Ditto. * fhandler_mailslot.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_random.cc: Ditto. * fhandler_tape.cc: Ditto. * fhandler_tty.cc: Ditto. * fhandler_virtual.cc: Ditto. * fhandler_windows.cc: Ditto. * fhandler_zero.cc: Ditto. * syscalls.cc (readv): Use ssize_t as temp variable. * fhandler.cc (fhandler_base::read): Coerce returned len to signed or it will never be treated as < 0. (fhandler_base::wait_overlapped): Minimize calls to GetLastError. Remove duplicate debugging test. Fix error return. * fhandler.h (fhandler_fifo::fifo_name): Declare new function. (fhandler_fifo::close): Ditto. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto. * fhandler.cc (fhandler_fifo::fifo_name): Define new function. (FIFO_BUF_SIZE): New define. (cnp): Ditto. (fhandler_fifo::open): Rework. Use cnp to open named pipe. Always open write side as a client. Open dummy client when writing and can't connect. (wait): Rework. Implement fifo_wait_for_next_client. Handle signals during connect better. Add new fifo_wait_for_server code which polls (sigh) waiting for server. (fhandler_fifo::raw_read): Handle transition states when one client closes and another is available. (fhandler_fifo::close): Define. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto.
2009-07-25 04:54:33 +08:00
while (wait_state != fifo_eof && wait_state != fifo_error && wait_state != fifo_eintr)
if (!wait (false))
len = (wait_state == fifo_error || wait_state == fifo_eintr) ? (size_t) -1 : 0;
else
{
size_t prev_len = len;
read_overlapped (in_ptr, len);
if (len)
break;
wait_state = fifo_wait_for_next_client;
len = prev_len;
}
if (wait_state == fifo_eintr)
wait_state = fifo_wait_for_client;
debug_printf ("returning %d, mode %d, %E\n", len, get_errno ());
}
* sigproc.h (wait_for_sigthread): Eliminate parameter. * sigproc.cc (wait_for_sigthread): Ditto. Don't synchronize with wait_sig after receiving an event that it is ready to go. (init_sig_pipe): New function. (wait_sig): Call init_sig_pipe to create pipes for communicating signals to this process. Don't send sigCONT signal when initializing. * fork.cc (frok::child): Accommodate wait_for_sigpipe parameter change. * fhandler.h (fhandler_*::write): Make ssize_t/__stdcall. (fhandler_*::write_overlapped): Ditto. (fhandler_*::raw_write): Ditto. (fhandler_*::readv): Ditto. (fhandler_*::writev): Ditto. (fhandler_*::raw_read): Make __stdcall. * fhandler: Accommodate changes to read/write functions throughout. * fhandler_clipboard.cc: Ditto. * fhandler_console.cc: Ditto. * fhandler_dsp.cc: Ditto. * fhandler_fifo.cc: Ditto. * fhandler_mailslot.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_random.cc: Ditto. * fhandler_tape.cc: Ditto. * fhandler_tty.cc: Ditto. * fhandler_virtual.cc: Ditto. * fhandler_windows.cc: Ditto. * fhandler_zero.cc: Ditto. * syscalls.cc (readv): Use ssize_t as temp variable. * fhandler.cc (fhandler_base::read): Coerce returned len to signed or it will never be treated as < 0. (fhandler_base::wait_overlapped): Minimize calls to GetLastError. Remove duplicate debugging test. Fix error return. * fhandler.h (fhandler_fifo::fifo_name): Declare new function. (fhandler_fifo::close): Ditto. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto. * fhandler.cc (fhandler_fifo::fifo_name): Define new function. (FIFO_BUF_SIZE): New define. (cnp): Ditto. (fhandler_fifo::open): Rework. Use cnp to open named pipe. Always open write side as a client. Open dummy client when writing and can't connect. (wait): Rework. Implement fifo_wait_for_next_client. Handle signals during connect better. Add new fifo_wait_for_server code which polls (sigh) waiting for server. (fhandler_fifo::raw_read): Handle transition states when one client closes and another is available. (fhandler_fifo::close): Define. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto.
2009-07-25 04:54:33 +08:00
ssize_t __stdcall
fhandler_fifo::raw_write (const void *ptr, size_t len)
{
Preliminary change to make fifos/pipes interruptible and fifos reliable. * dtable.cc (dtable::find_fifo): Eliminate definition. * dtable.h (dtable::find_fifo): Ditto for declaration. * fhandler.cc (fhandler_base::raw_read): Remove pipe-specific stuff. (fhandler_base::fhandler_base): Ditto. (fhandler_base::close): Handle overlapped I/O structure if appropriate. (fhandler_base::dup): Ditto. (fhandler_base::fork_fixup): Ditto. (fhandler_base::setup_overlapped): Define new function. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. * fhandler.h (fhandler_base::get_overlapped): Declare new function. (fhandler_base::setup_overlapped): Ditto. (fhandler_base::destroy_overlapped): Ditto. (fhandler_base::wait_overlapped): Ditto. (fhandler_base::read_overlapped): Ditto. (fhandler_base::write_overlapped): Ditto. (fhandler_base::get_guard): Eliminate. (fhandler_pipe::*): Rework to eliminate most Win9x related cruft, removing many variables and defining a new overlapped capability. (fhandler_fifo::*): Ditto. (fifo_state): Declare new enum. * fhandler_fifo.cc (fhandler_fifo::fhandler_fifo): Remove old Win9x stuff. Initialize overlapped handle to NULL. (fhandler_fifo::set_use): Eliminate. (fhandler_fifo::open_nonserver): Define. (fhandler_fifo::open): Rework to use named pipes and overlapped I/O. (fhandler_fifo::wait): Define new function to wait for named pipe connection. (fhandler_fifo::read): Rework to use wait() and new overlapped I/O functionality. (fhandler_fifo::write): Ditto. (fhandler_fifo::dup): Eliminate. * pinfo.cc (commune_process): Remove fifo handling. (_pinfo::commune_request): Ditto. * pinfo.h (picom): Ditto. * pipe.cc (fhandler_pipe::fhandler_pipe): Remove Win9x stuff. Initialize overlapped handle to NULL. (fhandler_pipe::open): Eliminate Win9x stuff. (fhandler_pipe::set_close_on_exec): Eliminate. (read_pipe): Eliminate. (fhandler_pipe::close): Ditto. (fhandler_pipe::fixup_after_exec): Ditto. (fhandler_pipe::fixup_in_child): Ditto. (fhandler_pipe::read): Rework to use overlapped I/O. (fhandler_pipe::write): New function using overlapped I/O. (fhandler_pipe::dup): Rework to eliminate Win9x stuff. (fhandler_pipe::create_selectable): Rework to eliminate Win9x and use overlapped I/O. * select.cc (peek_pipe): Rework to eliminate Win9x stuff and use overlapped I/O. (fhandler_base::ready_for_read): Ditto.
2007-07-08 01:00:33 +08:00
return wait (true) ? write_overlapped (ptr, len) : -1;
}
int __stdcall
fhandler_fifo::fstatvfs (struct statvfs *sfs)
{
fhandler_disk_file fh (pc);
fh.get_device () = FH_FS;
return fh.fstatvfs (sfs);
}
* sigproc.h (wait_for_sigthread): Eliminate parameter. * sigproc.cc (wait_for_sigthread): Ditto. Don't synchronize with wait_sig after receiving an event that it is ready to go. (init_sig_pipe): New function. (wait_sig): Call init_sig_pipe to create pipes for communicating signals to this process. Don't send sigCONT signal when initializing. * fork.cc (frok::child): Accommodate wait_for_sigpipe parameter change. * fhandler.h (fhandler_*::write): Make ssize_t/__stdcall. (fhandler_*::write_overlapped): Ditto. (fhandler_*::raw_write): Ditto. (fhandler_*::readv): Ditto. (fhandler_*::writev): Ditto. (fhandler_*::raw_read): Make __stdcall. * fhandler: Accommodate changes to read/write functions throughout. * fhandler_clipboard.cc: Ditto. * fhandler_console.cc: Ditto. * fhandler_dsp.cc: Ditto. * fhandler_fifo.cc: Ditto. * fhandler_mailslot.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_random.cc: Ditto. * fhandler_tape.cc: Ditto. * fhandler_tty.cc: Ditto. * fhandler_virtual.cc: Ditto. * fhandler_windows.cc: Ditto. * fhandler_zero.cc: Ditto. * syscalls.cc (readv): Use ssize_t as temp variable. * fhandler.cc (fhandler_base::read): Coerce returned len to signed or it will never be treated as < 0. (fhandler_base::wait_overlapped): Minimize calls to GetLastError. Remove duplicate debugging test. Fix error return. * fhandler.h (fhandler_fifo::fifo_name): Declare new function. (fhandler_fifo::close): Ditto. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto. * fhandler.cc (fhandler_fifo::fifo_name): Define new function. (FIFO_BUF_SIZE): New define. (cnp): Ditto. (fhandler_fifo::open): Rework. Use cnp to open named pipe. Always open write side as a client. Open dummy client when writing and can't connect. (wait): Rework. Implement fifo_wait_for_next_client. Handle signals during connect better. Add new fifo_wait_for_server code which polls (sigh) waiting for server. (fhandler_fifo::raw_read): Handle transition states when one client closes and another is available. (fhandler_fifo::close): Define. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto.
2009-07-25 04:54:33 +08:00
int
fhandler_fifo::close ()
{
wait_state = fifo_eof;
if (dummy_client)
{
ForceCloseHandle (dummy_client);
dummy_client = NULL;
}
return fhandler_base::close ();
}
int
fhandler_fifo::dup (fhandler_base *child)
{
int res = fhandler_base_overlapped::dup (child);
* sigproc.h (wait_for_sigthread): Eliminate parameter. * sigproc.cc (wait_for_sigthread): Ditto. Don't synchronize with wait_sig after receiving an event that it is ready to go. (init_sig_pipe): New function. (wait_sig): Call init_sig_pipe to create pipes for communicating signals to this process. Don't send sigCONT signal when initializing. * fork.cc (frok::child): Accommodate wait_for_sigpipe parameter change. * fhandler.h (fhandler_*::write): Make ssize_t/__stdcall. (fhandler_*::write_overlapped): Ditto. (fhandler_*::raw_write): Ditto. (fhandler_*::readv): Ditto. (fhandler_*::writev): Ditto. (fhandler_*::raw_read): Make __stdcall. * fhandler: Accommodate changes to read/write functions throughout. * fhandler_clipboard.cc: Ditto. * fhandler_console.cc: Ditto. * fhandler_dsp.cc: Ditto. * fhandler_fifo.cc: Ditto. * fhandler_mailslot.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_random.cc: Ditto. * fhandler_tape.cc: Ditto. * fhandler_tty.cc: Ditto. * fhandler_virtual.cc: Ditto. * fhandler_windows.cc: Ditto. * fhandler_zero.cc: Ditto. * syscalls.cc (readv): Use ssize_t as temp variable. * fhandler.cc (fhandler_base::read): Coerce returned len to signed or it will never be treated as < 0. (fhandler_base::wait_overlapped): Minimize calls to GetLastError. Remove duplicate debugging test. Fix error return. * fhandler.h (fhandler_fifo::fifo_name): Declare new function. (fhandler_fifo::close): Ditto. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto. * fhandler.cc (fhandler_fifo::fifo_name): Define new function. (FIFO_BUF_SIZE): New define. (cnp): Ditto. (fhandler_fifo::open): Rework. Use cnp to open named pipe. Always open write side as a client. Open dummy client when writing and can't connect. (wait): Rework. Implement fifo_wait_for_next_client. Handle signals during connect better. Add new fifo_wait_for_server code which polls (sigh) waiting for server. (fhandler_fifo::raw_read): Handle transition states when one client closes and another is available. (fhandler_fifo::close): Define. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto.
2009-07-25 04:54:33 +08:00
fhandler_fifo *fifo_child = (fhandler_fifo *) child;
if (res == 0 && dummy_client)
{
bool dres = DuplicateHandle (GetCurrentProcess (), dummy_client,
GetCurrentProcess (),
* sigproc.h (wait_for_sigthread): Eliminate parameter. * sigproc.cc (wait_for_sigthread): Ditto. Don't synchronize with wait_sig after receiving an event that it is ready to go. (init_sig_pipe): New function. (wait_sig): Call init_sig_pipe to create pipes for communicating signals to this process. Don't send sigCONT signal when initializing. * fork.cc (frok::child): Accommodate wait_for_sigpipe parameter change. * fhandler.h (fhandler_*::write): Make ssize_t/__stdcall. (fhandler_*::write_overlapped): Ditto. (fhandler_*::raw_write): Ditto. (fhandler_*::readv): Ditto. (fhandler_*::writev): Ditto. (fhandler_*::raw_read): Make __stdcall. * fhandler: Accommodate changes to read/write functions throughout. * fhandler_clipboard.cc: Ditto. * fhandler_console.cc: Ditto. * fhandler_dsp.cc: Ditto. * fhandler_fifo.cc: Ditto. * fhandler_mailslot.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_random.cc: Ditto. * fhandler_tape.cc: Ditto. * fhandler_tty.cc: Ditto. * fhandler_virtual.cc: Ditto. * fhandler_windows.cc: Ditto. * fhandler_zero.cc: Ditto. * syscalls.cc (readv): Use ssize_t as temp variable. * fhandler.cc (fhandler_base::read): Coerce returned len to signed or it will never be treated as < 0. (fhandler_base::wait_overlapped): Minimize calls to GetLastError. Remove duplicate debugging test. Fix error return. * fhandler.h (fhandler_fifo::fifo_name): Declare new function. (fhandler_fifo::close): Ditto. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto. * fhandler.cc (fhandler_fifo::fifo_name): Define new function. (FIFO_BUF_SIZE): New define. (cnp): Ditto. (fhandler_fifo::open): Rework. Use cnp to open named pipe. Always open write side as a client. Open dummy client when writing and can't connect. (wait): Rework. Implement fifo_wait_for_next_client. Handle signals during connect better. Add new fifo_wait_for_server code which polls (sigh) waiting for server. (fhandler_fifo::raw_read): Handle transition states when one client closes and another is available. (fhandler_fifo::close): Define. (fhandler_fifo::dup): Ditto. (fhandler_fifo::close_on_exec): Ditto.
2009-07-25 04:54:33 +08:00
&fifo_child->dummy_client, 0,
TRUE, DUPLICATE_SAME_ACCESS);
if (!dres)
{
fifo_child->dummy_client = NULL;
child->close ();
__seterrno ();
res = -1;
}
}
return res;
}
void
fhandler_fifo::set_close_on_exec (bool val)
{
fhandler_base::set_close_on_exec (val);
if (dummy_client)
set_no_inheritance (dummy_client, val);
}