have been terminated prior to setting flag.
* signal.cc (sigwaitinfo): Zero event before closing to signal other threads
that it is no longer available.
instead of local dir variable and create handle not inheritable to
avoid accumulating stray handles in child processes.
(get_session_parent_dir): Ditto with session_parent_dir variable.
(cygheap_exec_info::nchildren): Move from child_info_spawn.
(cygheap_exec_info::cchildren): Ditto.
(cygheap_exec_info::record_children): Declare new function.
(cygheap_exec_info::reattach_children): Ditto.
(cygheap_exec_info::alloc): Ditto.
(child_info_spawn::nchildren): Move to cygheap_exec_info.
(child_info_spawn::cchildren): Ditto.
* sigproc.cc (cygheap_exec_info::alloc): Define new function.
(child_info_spawn::cleanup): Accommodate move of children info to
cygheap_exec_info.
(cygheap_exec_info::record_children): Define new function.
(cygheap_exec_info::reattach_children): Ditto.
(child_info_spawn::record_children): Use cygheap_exec_info function to
accomplish this task.
(child_info_spawn::reattach_children): Ditto.
* spawn.cc (child_info_spawn::worker): Allocate moreinfo using
cygheap_exec_info::alloc.
* dcrt0.cc (child_info_fork::alloc_stack_hard_way): Use abort for the error to
avoid a retry.
Throughout rename _PROC_* to _CH_*.
* child_info.h: Include "pinfo.h".
(child_info_types): Rename _PROC_* -> _CH_* to avoid confusion with similarly
named constants.
(_PROC_*): Delete unneeded aliases.
(PROC_*): Ditto.
(CURR_CHILD_INFO_MAGIC): Ditto.
(cchildren): Define using "pinfo_minimal".
(child_info::set_saw_ctrl_c): Move to
(child_info_spawn::set_saw_ctrl_c): Here.
(child_info_spawn::lock): New field.
(child_info_spawn::hExeced): Ditto.
(child_info_spawn::ev): Ditto.
(child_info_spawn::~child_info_spawn): Move to sigproc.cc.
(child_info_spawn::child_info_spawn): Ditto.
(child_info_spawn::cleanup): Declare new function.
(child_info_spawn::set_saw_ctrl_c): Move to this class. Set flag only when
execed and return true when we have set the flag.
(child_info_spawn::child_info_spawn::signal_myself_exited): New function.
(child_info_spawn::wait_for_myself): Ditto.
(child_info_spawn::has_execed_cygwin): Ditto.
(child_info_spawn::has_execed): Ditto. Replaces "hExeced" test.
(child_info_spawn::operator HANDLE&): New operator.
(child_info_spawn::worker): Define old "spawn_guts" as class member.
(ch_spawn): Declare.
(have_execed): Define.
(have_execed_cygwin): Ditto.
* cygheap.h: Update comment.
* dcrt0.cc (get_cygwin_startup_info): Use _CH_* enums.
(child_info_spawn::handle_spawn): Ditto.
(dll_crt0_0): Ditto.
(multiple_cygwin_problem): Ditto.
* exceptions.cc (chExeced): Delete obsolete declaration.
(ctrl_c_handler): Reference set_saw_ctrl_c via new ch_spawn global.
* globals.cc (hExeced): Delete.
* pinfo.cc (pinfo::thisproc): Refer to cygheap as ::cygheap for consistency in
handle naming when -DDEBUGGING.
(pinfo::init): Accommodate case where myself.h is known but h0 is passed in.
(pinfo::pinfo): New constructor for setting up a pinfo passed in by previous
exec'or.
(pinfo::proc_waiter): Don't handle subprocess if we're in the process of
exiting due to an exec of a cygwin process. Don't close rd_proc_pipe here.
Close it when we actually are finished with the process. Use new
ch_spawn.signal_myself_exited function to let exec stub know that subprocess
has exited.
(pinfo::wait): Clarify debugging output.
(pinfo::release): Use "close_h" to close all handles to avoid races.
(winpids::add): Assume that elements of the array do not need to be zeroed and
are properly initialized or suffer problems on pinfo::release. Don't close
hProcess since release does that now.
* pinfo.h: Update comment.
(pinfo_minimal): Move some elements from pinfo here so that child_info_spawn
can use them.
(pinfo): Inherit from pinfo_minimal.
(pinfo::pinfo): Modify to accommodate new pinfo_minimal.
(pinfo::allow_remove): New function.
* sigproc.cc (proc_subproc): Use boolean values for true/false. Implement
PROC_EXEC_CLEANUP.
(proc_terminate): Set ppid = 1 since the procs list will only be iterated when
the process has not execed. Don't do any cleanup here since it is now handled
in pinfo::release.
(sigproc_init): Initialize sync_proc_subproc earlier.
(child_info::child_info): Assume that all important fields are properly
initialized and avoid memset().
(child_info_spawn::child_info_spawn): Specifically test for execing and then
set up appropriate fields in the struct.
(child_info_spawn::cleanup): Define new function.
(child_info_spawn::record_children): Specifically test for being execed here.
Fill in pinfo_minimal part of children array.
(child_info_spawn::reattach_children): Use constructor to duplicate information
for previous exec'or. Add more debugging output.
(remove_proc): Force deletion of thread when exiting due to exec. Rely on
pinfo::cleanup in release.
* sigproc.h (PROC_EXEC_CLEANUP): New enum.
(PROC_DETACHED_CHILD): Delete.
* spawn.cc (chExeced): Delete.
(child_info_spawn::worker): Rename from spawn_guts. Use elements of
child_info_spawn throughout rather than ch.whatever. Use ::cygheap to refer to
global rather than element of child_info. Use wait_for_myself() rather than
waitpid(). Call child_info_spawn::cleanup on function return.
(spawnve): Reflect movement of spawn_guts functionality into
child_info_spawn::worker.
* syscalls.cc (popen): Ditto.
* winsup.h (spawn_guts): Delete declaration.
* dtable.cc (decode_tty): Use __ptsname to generate the slave pty name.
* fhandler_tty.cc (fhandler_pty_master::ptsname_r): Ditto.
* bsdlib.cc: Add needed includes for openpty() changes.
(openpty): Use __ptsname to generate the slave pty name. Close slave fd when
aslave == NULL.
* fhandler.cc (fhandler_base::ptsname_r): Define.
* fhandler.h (fhandler_base::ptsname): Delete.
(fhandler_base::ptsname_r): Declare.
(fhandler_pty_master::ptsname_r): Declare.
* fhandler_tty.cc (fhandler_pty_master::ptsname): Delete.
(fhandler_pty_master::ptsname_r): New reentrant function derived from previous
ptsname.
* syscalls.cc (ptsname_r): Implement new function with functionality similar to
Linux.
(ptsname): Use ptsname_r () to fill out buf.
* include/cygwin/stdlib.h (ptsname_r): Declare.
* include/cygwin/version.h: Bump CYGWIN_VERSION_API_MINOR to 255 to reflect
export of ptsname_r.
* pinfo.cc (pinfo::wait): Return bool rather than int.
* pinfo.h (info::wait): Ditto.
(pinfo::reattach): Define !defined(_SIGPROC_H) case for consistency.
* sigproc.cc (child_info_spawn::reattach_children): Use correct dwProcessId
rather than pid when duplicating handle.
by calling NtQueryAttributesFile. Make STATUS_DIRECTORY_NOT_EMPTY
return value dependent on its status code. Add long comment to explain.
(unlink_nt): Add comment to explain flaw in checking the sharing mode.
Set status to STATUS_SUCCESS instead of 0. Add a retry loop to setting
the delete disposition and trying to move a directory to bin to
workaround rare cases of lingering, already deleted subdirectory
entries. Add long comment to explain.
(rename): Set status to STATUS_SUCCESS instead of 0.
succeeds. Return true for success.
* sigproc.cc (child_info_spawn::reattach_children): Try harder to clean up on
error by detecting reattach failures too.
an options argument for CreateNamedPipe/CreateFile. Change handle arguments to
expect pointers.
(fhandler_fifo::fifo_state): Delete.
(fhandler_fifo::dummy_client): Ditto.
(fhandler_fifo::open_nonserver): Ditto.
(fhandler_fifo::wait_state): Ditto.
(fhandler_fifo::raw_write): Ditto.
(fhandler_fifo::read_ready): New field.
(fhandler_fifo::write_ready): Ditto.
(fhandler_fifo::wait): Modify argument.
(fhandler_fifo::fifo_name): Add a new argument.
(fhandler_fifo::fixup_after_fork): New function.
* fhandler_fifo.cc (fhandler_fifo::fhandler_fifo): Remove initialization of
expunged elements. Initialize new handles to NULL.
(fhandler_fifo::open_nonserver): Delete.
(fnevent): New macro for creating a named event.
(fnpipe): New macro for creating a unique named pipe name.
(create_pipe): New macro for simplification of named pipe creation.
(fhandler_fifo::fifo_name): Use new argument when creating a shared name.
(fhandler_fifo::open): Rewrite. Use events to synchronize.
(pure_debug_printf): New macro, active only when DEBUGGING.
(fhandler_fifo::wait): Rewrite to wait for new fifo events which are supplied
as a parameter.
(fhandler_fifo::raw_read): Rewrite to use handle mechanism to detect
client-side disconnect.
(fhandler_fifo::raw_write): Delete.
(fhandler_fifo::close): Remove accommodations for expunged fields. Close event
handles.
(fhandler_fifo::dup): Remove accommodations for expunged fields. Duplicate
event handles.
(fhandler_fifo::fixup_after_fork): New function. Perform fixups on event
handles.
(fhandler_fifo::set_close_on_exec): Remove accommodations for expunged fields.
Set inheritance for new handle fields.
* miscfuncs.cc (CreatePipeOverlapped): Accommodate changes in
fhandler_pipe::create_selectable.
* tty.cc (tty::not_allocated): Ditto.
* pipe.cc (fhandler_pipe::create): Ditto.
(fhandler_pipe::create_selectable): Accept an extra open_mode argument. Pass
arguments by reference and allow opening one end of the pipe at a time.
* sys/strace.h (debug_only_printf): Define new macro which calls debug_printf
only when DEBUGGING is defined.
* grp.cc (get_groups): New static function to run the core functionality
of initgroups and getgrouplist.
(initgroups32): Call get_groups and just create supplementary group
list in cygheap. Rename name of first argument to "user". Add an
assertion to test for a NULL user name.
(initgroups): Rename name of first argument to "user".
(getgrouplist): New function.
* posix.sgml (std-bsd): Add getgrouplist.
* include/cygwin/grp.h (getgrouplist): Declare.
* include/cygwin/version.h: Bump API minor number.
(child_info_spawn::nchildren): Rename from nprocs.
(child_info_spawn::children): Change type to cchildren for more bookkeeping
possibilities.
(child_info_spawn::child_info_spawn): Clear nchildren.
(child_info_spawn::record_children): Declare new function.
(child_info_spawn::reattach_children): Ditto.
* dcrt0.cc (child_info_spawn::handle_spawn): Call reattach_children to gather
list of processes we are potentially waiting for.
* pinfo.h (pinfo::pinfo): Make sure that rd_proc_pipe is always cleared.
(pinfo::reattach): New function.
* sigproc.cc: Move pinfo.h earlier so that it can be used in sigproc.h.
(get_proc_lock): Don't bother with a lock during DLL initialization.
(proc_subproc): Handle PROC_REATTACH_CHILD.
(proc_terminate): Orphan children only when we are not an execed process or
when the pid is about to be occupied by a non-cygwin process.
(child_info_spawn::record_children): Define new function.
(child_info_spawn::reattach_children): Ditto.
* sigproc.h (procstuff): Define PROC_REATTACH_CHILD and renumber other
elements.
* spawn.cc (spawn_guts): Record any to-be-waited-for subprocesses if about to
exec a cygwin process.
* sigproc.cc (sig_send): Fix harmless transposition of fifth and six arguments
to DuplicateHandle().
(child_info::child_info): Ditto.
* globals.cc (hExeced): Make NO_COPY.
to a file mapping as parameter. If this handle is not NULL,
create another file mapping for the IAT.
* spawn.cc (av::fixup): Only map the first 64K of an image and
keep the mapping handle to use as argument to hook_or_detect_cygwin.
* winsup.h (hook_or_detect_cygwin): Add mapping handle as default
parameter in declaration.
ReadFile return.
* pipe.cc (fhandler_pipe::create_selectable): Open the write side of the pipe
in message-mode to force writing as "chunks". Explain why.
(dtable::init_std_file_from_handle): Close console handle early, before
initialization. Build up openflags for passing to open_setup, just to be safe.
(last_tty_dev): New variable.
(fh_last_tty_dev): New macro.
(fh_alloc): Try again to keep track of previously opened tty, this time by just
saving the device and using that to potentially open an archetype. Avoid
setting the "/dev/tty" name if the creation of the fhandler failed.
(build_fh_pc): Remove unused second argument. Reorganize how and where the
name is set. Set last_tty_dev as appropriate. Avoid a NULL dereference in a
debug printf.
* dtable.h (build_fh_pc): Reflect removal of second parameter.
* fhandler.cc (fhandler_base::reset): Use new '<<' operator to copy pc since it
preserves any potentially previously set name.
(fhandler_base::set_name): Ditto.
* fhandler.h (fhandler_*::clone): Throughout use ccalloc to allocate new
fhandler, primarily to make sure that pc field is properly zeroed.
(fhandler_termios::last): Eliminate.
(fhandler_termios): Remove setting of last.
(fhandler_base::~fhandler_termios): Ditto.
* fhandler_console.cc (fhandler_console::open): Don't make decisions about
opening close-on-exec handles here since it makes no sense for archetypes.
(fhandler_console::init): Assume that input handle has already been opened.
* fhandler_termios.cc (fhandler_termios::last): Delete.
* path.h (path_conv::eq_worker): New function. Move bulk of operator = here.
(operator <<): New function.
(operator =): Use eq_worker to perform old functionality.
* devices.cc: Regenerate.
* dtable.cc: (fh_alloc): Preserve /dev/tty name when that's what we opened.
(build_fh_pc): Preserve any existing name.
* fhandler.cc (fhandler_base::open_with_arch): Ditto.
* fhandler_tty.cc (fhandler_pty_master::fhandler_pty_master): Force the name to
/dev/ptmx while preserving other pty master device information.
* path.h (cfree_maybe): New macro.
(path_conv::operator =): Free any allocated strings in target.
(path_conv::free_strings): Delete unused function.
* sigproc.cc (proc_terminate): Remove previous accommodation for execed
processes since it didn't have the desired effect. Change comment to a FIXME.
* spawn.cc (chExeced): Mark NO_COPY.
(exe_suffixes): Ditto.
logs easier. Throughout, change /dev/tty* to /dev/pty*. Throughout, add flags
argument to fhandler_*::dup methods.
* devices.in: Rename (temporarily?) /dev/ttyN to /dev/ptyN. Add /dev/ptymN
devices for pty masters.
* devices.cc: Regenerate.
* devices.h (MAX_CONSOLES): Set to max number supported by devices.in.
(fh_devices::FH_PTMX): Rename from FH_PTYM.
(device::operator int): Return by reference.
* dtable.cc (fh_alloc): Take pc as an argument rather than just the device.
This makes debugging easier since more information is available. Actually
implement handling for already-allocated pty master devices. Make different
decisions when generating fhandler for not-opened devices. Add kludge to deal
with opening /dev/tty.
(cnew_no_ctor): New macro.
(build_fh_pc): Make debugging output more verbose. Use new clone() fhandler
interface to duplicate archetypes. Reset last term opened.
(dtable::dup_worker): Use Use new clone() fhandler interface to duplicate
archetypes. Pass flags to child dup handler.
(dtable::dup3): Set O_NOCTTY flag if newfd is not stdin/stdout/stderr.
* fhandler.cc (fhandler_base::reset): Rename from operator =() and reduce
functionality and sense of copy direction.
(fhandler_base::open_with_arch): Use published interface to query io_handle().
Use new copyto() fhandler method to copy from/to found archetype.
* fhandler.h: Throughout, delete size(), add copyout, clone, and fhandler_*
(void *) methods.
(fhandler_base::reset): Rename from operator =().
(fhandler_termios::is_dev_tty): Delete.
(fhandler_termios): change "protected" region to "private".
(fhandler_termios::is_dev_tty): Delete.
(fhandler_termios): Rearrange protected/public.
(fhandler_termios::fhandler_termios): Remember last fhandler_termios "opened".
(fhandler_termios::~fhandler_termios): Forget last fhandler_termios opened.
(ioctl): Rename from ioctl_termios. Take a void * argument. Reflect argument
change in pinfo::set_ctty.
(fhandler_console::dup): Declare new function. Set ctty here if appropriate.
(fhandler_pty_master::from_master): Privatize.
(fhandler_pty_master::to_master): Ditto.
(fhandler_pty_master::dwProcessId): Ditto.
(fhandler_pty_master::fhandler_pty_master): Add an `int' argument.
(fhandler_pty_master::open_setup): Declare new function.
(fhandler_pty_master::~fhandler_pty_master): Declare new method.
(fhandler_nodevice): Remove commented out function declaration.
* fhandler_console.cc: Use get_ttyp() instead of tc() throughout.
(fhandler_console::dup): Define new function to set controlling ctty on dup, as
appropriate.
(fhandler_console::ioctl): Reflect ioctl_termios name change.
(fhandler_console::setup): Rename from get_tty_stuff.
(fhandler_console::open_setup): Reflect argument change in pinfo::set_ctty.
(fhandler_console::fhandler_console): Set _tc here.
* fhandler_termios.cc (handler_termios::ioctl): Rename. Take a void * arg like
other ioctl functions.
* fhandler_tty.cc (fhandler_pty_slave::dup): Call myself->set_ctty to
potentially reset the controlling terminal.
(fhandler_pty_slave::ioctl): Reflect name/arg change for ioctl_termios.
(fhandler_pty_slave::fhandler_pty_slave): Take a "unit" argument. Call setup()
here so that we will know the unit number of this fhandler as soon as possible.
Set the unit as appropriate.
(handler_pty_master::open): Move most stuff to constructor and open_setup.
(handler_pty_slave::open_setup): Reflect argument change in pinfo::set_ctty.
(handler_pty_master::open_setup): Define new function.
(fhandler_pty_master::cleanup): Clear handles as a flag that the destructor
does not have to do "close" operations.
(fhandler_pty_master::close): Ditto.
(fhandler_pty_master::~fhandler_pty_master): Define new method.
(fhandler_pty_master::ioctl): Reflect name/arg change for ioctl_termios.
(fhandler_pty_master::setup): Allocate tty here. Rely on handles being
returned from allocated test rather than opening them here. Avoid setting
_need_nl here since it is already zeroed in the constructor. Set up device
information with DEV_TTYM_MAJOR.
* path.h (path_conv &operator =): Take a const argument.
(path_conv::dup): Ditto.
(pathconv_arg::PC_OPEN): New enum.
(pathconv_arg::PC_CTTY): Ditto.
(path_types::PATH_CTTY): Ditto.
(path_types::PATH_OPEN): Ditto.
(path_conv::isopen): New method.
(path_conv::isctty_capable): Ditto.
* path.cc (path_conv::check): Set PATH_OPEN and PATH_CTTY as appropriate.
* pipe.cc (fhandler_pipe::open): Use copyto to copy pipe handle.
* syscall.cc (open): Reinstate fd > 2 check to disallow resetting ctty on
non-std* handles.
* tty.cc (tty_list::allocate): Pass out handles for allocated tty. use
`not_allocated' to find unallocated ttys. Avoid keeping the lock since the
allocation of the tty should be sufficient to prevent multiple access.
(tty::not_allocated): Clarify comment. Rename. Return handles when an unused
tty is found. Simply test for existing tty.
(tty::exists): Rewrite to use `not_allocated'.
* tty.h (NTTYS): Reset down to actual number supported by devices.in.
(tty::not_allocated): Declare new function.
(tty_list::allocate): Pass out read/write tty handles. Zero them when not
found.
* fhandler_proc.cc: Reflect name change from FH_PTYM -> FH_PTMX.
* pinfo.h (pinfo::set_ctty): Reduce/reorder arguments passed in.
* pinfo.cc (pinfo::set_ctty): Ditto. Just use tc() built into the passed-in
fhandler_termios pointer. Return true if ctty is assigned.
* syscalls.cc (open): Call build_fh_pc with PC_OPEN flag. Set PC_CTTY if
appropriate.
(stat_worker): Remove is_dev_tty () stuff.
systems supporting it. Never add SERVICE SID but keep code in for
future reference. Explain why.
(get_priv_list): Add cygpsid pointer parameter. Point it to the
mandatory integrity SID which matches account and privileges.
(create_token): Fetch mandatory integrity SID from call to
get_priv_list.
(lsaauth): Call get_priv_list with additional NULL pointer. Change
comment accordingly.
* sec_helper.cc (well_known_console_logon_sid): New static SID.
(cygpriv): Change to structure containing extra flag to store info
about required integrity level.
(privilege_luid): Accommodate changes to cygpriv. Return integrity
level in new high_integrity parameter.
(privilege_name): Accommodate changes to cygpriv.
(set_privilege): Drop trailing \n from debug output.
(set_cygwin_privileges): Don't set SE_CREATE_GLOBAL_PRIVILEGE anymore
since it's just not needed, but keep code in for future reference.
Change comment accordingly.
* security.h (well_known_console_logon_sid): Declare.
(privilege_luid): Align declaration to above change.
* wincap.h (wincaps::has_console_logon_sid): New element.
* wincap.cc: Implement above element throughout.
class fcwd_access_t.
(class fcwd_access_t): New class to consolidate and hide the details
of the various FAST_CWD implementations. Add implementation for
Windows 8 Developer Preview.
(fast_cwd_version): Make static private member of fcwd_access_t.
(fast_cwd_ptr): Change base type to fcwd_access_t.
(find_fast_cwd_pointer): Return fcwd_access_t**.
(find_fast_cwd): Ditto. Rip out all FAST_CWD implementations and use
fcwd_access_t methods instead.
(cwdstuff::override_win32_cwd): Ditto.
* dtable.cc (fh_alloc): Revert ill-advised setting of major/minor. Use new
is_dev_tty to remember that this device was opened as /dev/tty.
* fhandler.cc (fhandler_base::fstat): Remove leftover debugging statement.
(fhandler_base::tcgetsid): New function.
* fhandler.h ((fhandler_base::tcgetsid): Declare new function.
(fhandler_base::is_dev_tty): Ditto.
(fhandler_termios::opened_as_dev_tty): Declare new field.
(fhandler_termios::is_dev_tty): Declare new function.
(fhandler_termios::tcgetsid): Ditto.
(fhandler_pty_common::use_archetype): Move here from subclass.
(fhandler_pty_slave::use_archetype): Move up.
(fhandler_pty_master::use_archetype): Ditto.
* fhandler_console.cc (fhandler_console::ioctl): Rename second argument from
`buf' to `arg' for consistency. Call ioctl_termios for common fhandler_termios
ioctl handling.
* fhandler_tty.cc (fhandler_pty_slave::ioctl): Call ioctl_termios for common
fhandler_termios ioctl handling.
(fhandler_pty_master::ioctl): Ditto.
* fhandler_termios.cc (fhandler_termios::tcgetsid): Implement new function.
(fhandler_termios::ioctl_termios): Ditto. Implements TIOCSCTTY handling.
* syscalls.cc (stat_worker): Set /dev/tty device info when appropriate.
* termios.cc (tcgetpgrp): Avoid extraneous "isatty" check.
(tcgetsid): Implement new function.
* include/cygwin/version.h: Bump CYGWIN_VERSION_API_MINOR to 253.
* include/sys/termios.h (TIOCSCTTY): Define.
pseudo signal to process group instead of just calling
init_console_handler.
* sigproc.cc (wait_sig): Call init_console_handler here on __SIGSETPGRP
signal.
* sigproc.h (__SIGSETPGRP): Define.
* include/cygwin/wait.h: Use new __wait_status_to_int()
macro to access status value in W*() status checks.
Fix status description.
* include/sys/wait.h: Allow `int' and `union wait' as
wait status parameter. Change __wait_status_to_int()
macro and wait () prototypes accordingly. Add inline
functions for C++. Remove extra `;'.
environment pointer as parameter and return pointer to corresponding
win32 environment block if != NULL. Otherwise just sync as before.
(cygwin_internal): Add CW_CVT_ENV_TO_WINENV case.
* include/cygwin/version.h: Bump API minor number.
* include/sys/cygwin.h (cygwin_getinfo_types): Add CW_CVT_ENV_TO_WINENV.
a given DLL name. Change default search path to allow /usr/bin.
(get_full_path_of_dll): Find DLLs even if the caller used a ".so"
suffix or a "lib" prefix for the DLL.
field.
(class lockf_t): Add lf_ver field.
(lockf_t::lockf_t): Initialize lf_ver to 0.
(class inode_t): Change i_wait to i_cnt. Change comment to explain
change in usage.
(inode_t:use): Rename from wait. Make private.
(inode_t::unuse): Rename from unwait. Make private.
(inode_t::inuse): Rename from waiting. Make private.
(inode_t::notused): New public method to set use count to 0.
(inode_t::unlock_and_remove): New method to unlock node and to delete
it if it's unused in current process.
(fhandler_base::del_my_locks): Drop global list lock. Drop variable
no_locks_left. Simpify unlocking and removing node by just calling
unlock_and_remove.
(fixup_lockf_after_exec): Call notused method for each node.
(inode_t::get): Call use method. Lock node only if outside of list
lock.
(inode_t::get_all_locks_list): Accommodate additional lf_ver field
when creating lockf_t structure from object name.
(lockf_t::create_lock_obj_attr): Accommodate additional lf_ver field
when creating object name from lockf_t structure. Handle
STATUS_OBJECT_NAME_COLLISION gracefully in F_POSIX case as well.
Change comment accordingly. Increment lf_ver field rather than high
byte of lf_wid field. Simplify comment.
(fhandler_disk_file::lock): Always call unlock_and_remove rather than
just UNLOCK on node.
(lf_setlock): Move ret definition where it's used. Drop unneeded
tests for obj being not NULL. Only check for deadlock condition if the
lock we're trying to establish is a POSIX lock. Revamp object
collecting and wait code to cover all cases. Don't return with EDEADLK
if blocking process can't be opened for synchronization in F_POSIX case,
rather just wait like in F_FLOCK case. Change system_printf to
debug_printf in that case. Only run WaitForMultipleObjects with high
priority. Close obj and process handles prior to locking node.
(fhandler_base::close): Move call to del_my_locks from here...
* fhandler_disk_file.cc (fhandler_disk_file::open): ...to here.
* flock.cc (struct lockfattr_t): New type.
(lockf_t::close_lock_obj): New method, use throughout.
(lockf_t::create_lock_obj_attr): New method.
(lockf_t::create_lock_obj): Use create_lock_obj_attr method. Handle
STATUS_OBJECT_NAME_COLLISION in F_FLOCK case gracefully. Add lengthy
comments to explain why and how.
(lockf_t::open_lock_obj): Use create_lock_obj_attr method.
(lockf_t::del_lock_obj): Call NtSetEvent rather than SetEvent for
symmetry.
(fhandler_disk_file::lock): Define n only where it's used. Call
need_fork_fixup only if call was successful. Handle EINTR and
ECANCELED return values from lf_setlock.
(lf_setlock): Drop WAIT_UNLOCKED and WAIT_PROC_EXITED. Don't wait
for event object handle count to become <= 1 in F_LOCK case.
Simplify WFMO return value handling. Don't handle signal and cancel
events here; just return with appropriate error code instead.
(lf_getblock): Ignore locks for which the handle can't be opened.
Use IsEventSignalled.
* ntdll.h (STATUS_INVALID_INFO_CLASS): Undef if defined elsewhere to
make sure the definition is casted to NTSTATUS.
(STATUS_INVALID_HANDLE): Define and ditto.
(STATUS_OBJECT_NAME_COLLISION): Define.
(NtSetEvent): Declare.
FILE_OVERWITE/FILE_OVERWRITE_IF. Set file size to 0 explicitely if
regular, existing file has been opened for writing with O_TRUNC flag
set. Explain why.
sigprocmask to copy parent thread signal mask into new parent_sigmask
member.
(pthread::thread_init_wrapper): Copy _my_tls.sigmask from new
parent_sigmask member.
* thread.h (class pthread): Drop parent_tls. Add parent_sigmask.
DEV_SOUND_MAJOR. Use throughout.
* fhandler_proc.cc (proc_tab): Add /proc/devices and /proc/misc
virtual files.
(format_proc_devices): New function.
(format_proc_misc): New function.
* environ.cc (conv_start_chars): Move to shared cygwin region and initialize at
compile time.
(match_first_char): New generic function for querying conv_start_chars.
(posify_maybe): Rename from posify.
(environ_init): Remove conv_envvars initialization. Don't check
conv_start_chars, just allow posify_maybe to make the decision.
* fhandler_console.cc (__vt100_conv): Fix formatting. Mark as const.
* dlfcn.cc: Throughout mark exported symbols as extern "C".
(dlopen): Unignore flags argument. Define ret to NULL. Fix typo in
comment. Support Glibc flags RTLD_NOLOAD and RTLD_NODELETE.
* include/dlfcn.h: Clean up comments.
(RTLD_NODELETE): Define.
(RTLD_NOLOAD): Define.
(RTLD_DEEPBIND): Define.
(ReadPipeOverlapped): Ditto.
(WritePipeOverlapped): Ditto.
* miscfuncs.h: Declare new functions.
* pinfo.cc (commune_process): Call WritePipeOverlapped instead of
WriteFile. Set timeout to 1 sec.
(_pinfo::commune_request): Call ReadPipeOverlapped instead of ReadFile.
Set timeout to 0.5 secs.
* sigproc.cc (sig_send): Create pipe using CreatePipeOverlapped.
(fhandler_proc::closedir): Declare.
* fhandler_proc.cc (fhandler_proc::opendir): New method. Fetch list
of active processes here once to avoid potential duplicates.
(fhandler_proc::closedir): New method.
pidlist, even if pid is a Cygwin PID.
(winpids::enum_processes): Fetch Cygwin processes from listing of
shared cygwin object dir in the native NT namespace. Only if winpid
is true, fetch Windows processes using an additional call to
NtQuerySystemInformation.
even for zombies.
(get_mem_values): Fix loop fetching working set list to avoid out of
memory conditions. Return all mem values set to 0 for zombies.
* ntdll.h (STATUS_PROCESS_IS_TERMINATING): Define.
size from the LoaderFlags field in the PE/COFF header.
(heap_init): Call eval_initial_heap_size rather than
cygwin_shared->heap_chunk_size to fetch the initial heap size.
* shared.cc (shared_info::heap_chunk_size): Remove.
* shared_info.h (class shared_info): Drop heap_chunk member.
(CURR_SHARED_MAGIC): Update.
* ntea.cc (read_ea): Return correct ENOTSUP rather than EOPNOTSUPP.
Handle STATUS_INVALID_DEVICE_REQUEST and STATUS_NOT_FOUND. Explain
why. Convert conditional to switch statement.
(write_ea): Return correct ENOTSUP rather than EOPNOTSUPP. Handle
STATUS_INVALID_DEVICE_REQUEST. Convert conditional to switch statement.
* posix.sgml (std-notimpl): Move clock_nanosleep from here...
(std-susv4): ... to here.
(std-notes): Note limitations of clock_nanosleep.
* signal.cc (clock_nanosleep): Renamed from nanosleep, adding clock_id
and flags arguments and changing return values throughout.
Improve checks for illegal rqtp values. Add support for
CLOCK_MONOTONIC and TIMER_ABSTIME.
(nanosleep): Rewrite in terms of clock_nanosleep.
(sleep): Ditto.
(usleep): Ditto.
* thread.cc: Mark clock_nanosleep in list of cancellation points.
* include/cygwin/version.h (CYGWIN_VERSION_API_MINOR): Bump.
* cygthread.h (cygthread::create): Use correct regparm.
(cygthread::standalone): Delete from class and from all constructors.
(cygthread::cygthread): Use three only arguments for detached threads, and
start the thread via QueueUserAPC/async_create.
* dcrt0.cc (dll_crt0_0): Remove handling for wincap.has_buggy_thread_startup.
(dll_crt0_1): Ditto.
* wincap.cc: Ditto throughout.
* wincap.h: Ditto.
* fhandler_socket.cc (fhandler_socket::sendmsg): Add missing call to
get_inet_addr to convert AF_LOCAL to AF_INET sockets.
* net.cc (cygwin_socket): Workaround UDP Winsock problem. Add comment
to explain why.
* select.cc: Include winsock2.h rather than winsock.h.
using PeekConsoleInput and return only key down events in buf.
* fhandler_tty.cc (fhandler_pty_slave::ioctl): Always return EINVAL
if PeekNamedPipe fails.
(fhandler_pty_master::ioctl): Ditto.
best start address for the application heap.
(heap_init): Call eval_start_address to fetch the start value for
start_address. Move preceeding comment to eval_start_address.
functionality.
(CALL_HANDLER_RETRY_OUTER): New define.
(setup_handler): Add outer loop to signal handler to try harder to deliver the
signal.
* miscfuncs.cc (yield): Drop priority and use SleepEx() to force thread
rescheduling rather than relying on SwitchToThread().
ENABLE_PROCESSED_INPUT flag only depending on value of IGNBRK.
(fhandler_console::tcgetattr): Don't set ISIG depending on
ENABLE_PROCESSED_INPUT, set IGNBRK instead.
(fh_calloc): Remove.
(cnew): Redefine to handle NULL returns from cmalloc.
(build_fh_name): Accommodate new definition of cnew. Remove unneeded
test for fh_oom.
(fh_alloc): Ditto.
(fh_calloc): New static function. Add a comment to explain why this
is needed.
(cnew): Call fh_calloc as placement argument.
(build_fh_name): Check return code from cnew against address of
fh_oom to test for out of memory condition.
(fh_alloc): Ditto.
(build_fh_pc): Avoid a crash due to useing a NULL fhandler.
* pipe.cc (fhandler_pipe::create): Check if build_fh_dev returned a
valid pointer before using it.
Use options member instead.
* fhandler.h (class fhandler_base): Change type of access member to
ACCESS_MASK. Change get_access and set_access methods accordingly.
Add options member. Add get_options and set_options methods.
(class fhandler_disk_file): Add prw_handle.
(fhandler_disk_file::prw_open): Declare.
(fhandler_disk_file::close): Declare.
(fhandler_disk_file::dup): Declare.
(fhandler_disk_file::fixup_after_fork): Declare.
* fhandler_disk_file.cc (fhandler_disk_file::fhandler_disk_file):
Initialize prw_handle to NULL.
(fhandler_disk_file::close): Close prw_handle.
(fhandler_disk_file::dup): New method.
(fhandler_disk_file::fixup_after_fork): Set prw_handle to NULL since
prw_handle is not inherited.
(fhandler_disk_file::prw_open): New method. Add long comment to
explain current behaviour.
(fhandler_disk_file::pread): Revert previous change. Change to use
prw_handle if possible.
(fhandler_disk_file::pwrite): Change to use prw_handle if possible.
* strace.cc (strace::hello): Drop printing DLL information here since
application info is not always available at this point.
(strace::dll_info): New method to print DLL info.
* include/sys/strace.h (strace::dll_info): Declare.
* devices.h (FH_ERROR): New value.
(iscons_dev): Extend to detect all the console device types.
* devices.in: Set aside storage for FH_ERROR.
* dtable.cc (dtable::init_std_file_from_handle): Use iscons_dev to detect when
device is a console.
(fh_alloc): Pass device to console constructor.
(build_fh_pc): Short circuit when we detect that the constructor saw an error.
* fhandler.h (fhandler_console::fhandler_console): Accept fh_devices parameter.
(get_tty_stuff): Change to void.
* fhandler_console (fhandler_console::set_unit): Set device to FH_ERROR on
attempt to access anything other than the current console.
(fhandler_console::get_tty_stuff): Change to void return.
(fhandler_console::open): Return EPERM on FH_ERROR device type.
(fhandler_console::fhandler_console): Set the device type appropriately before
calling get_tty_stuff and rely on that function to reset it if necessary.
(tty_is_gone): New function.
(known): Change "tty" to call tty_is_gone(). Remove unneeded '&' from
beginning of function address.
(parse_options): Remove set_process_state handling.
* shared_info.h (CURR_USER_MAGIC): Reset.
(user_info::warned_notty): New member.
handle to open_shared since it is supposed to be an input.
(enum_windows): Set handle input to open_shared to NULL since it does not
represent any previously opened shared region.
* shared.cc (open_shared): Tweak debugging output.
when writing.
* fhandler.h: Include "tty.h".
(fhandler_termios::_tc): Rename from tc.
(fhandler_termios::tc): New method.
(fhandler_termios::tcinit): Remove an argument.
(fhandler_termios::get_ttyp): Use method to retrieve value.
(fhandler_console::console_state): Move here.
(fhandler_console::dev_state): Delete.
(fhandler_console::shared_console_info): Define.
(fhandler_console::open_shared_console): Move this function under
fhandler_console umbrella.
(fhandler_console::tc): Define. Return static value.
(fhandler_console::focus_aware): Accommodate deletion of dev_state.
(fhandler_console): Add tty_list::get_cttyp as a friend.
* fhandler_console.cc (dev_state): Redefine as a pointer within
shared_console_info and change dev-> to dev. throughout.
(fhandler_console::shared_console_info): Move into fhandler_console.
(fhandler_console::open_shared_console): Move into fhandler_console change
argument to simple bool.
(enum_windows): Accommodate changes to console_state and open_shared_console.
(console_unit::console_unit): Ditto.
(fhandler_console::get_tty_stuff): Accommodate change to dev_state.
(tty_list::get_cttyp): Accommodate change to
handler_console::shared_console_info.
(fhandler_console::read): Accommodate change from tc to tc ().
(fhandler_console::set_input_state): Ditto.
(fhandler_console::open): Accommodate tcinit argument change and change from tc
to tc().
(fhandler_console::input_tcsetattr): Accomodate change from tc to tc().
(fhandler_console::input_tcsetattr): Ditto.
(fhandler_console::write_normal): Ditto.
(fhandler_console::init): Ditto.
(fhandler_console::igncr_enabled): Ditto.
* fhandler_termios.cc (fhandler_termios::tcinit): Remove first argument.
Expect tc() to have been set up first. Use tc() rather than tc.
(fhandler_termios::tcsetpgrp): Accomodate change from tc to tc().
(fhandler_termios::tcgetpgrp): Ditto.
(fhandler_termios::bg_check): Ditto.
(fhandler_termios::line_edit: Ditto.
(fhandler_tty_master::set_winsize): Ditto.
(fhandler_tty_slave::open): Ditto.
(fhandler_tty_slave::init): Ditto.
(fhandler_pty_master::write): Ditto.
(fhandler_pty_master::setup): Ditto. Accommodate change in arguments to
tcinit.
(fhandler_tty_slave::fch_open_handles): Set _tc directly.
(tty_min::is_orphaned_process_group): Don't assume that parent pid exists.
* pinfo.cc (_pinfo::set_ctty): Reset myself->{pgid,sid} here if we were started
by a non-Cygwin process but the tty exists.
* shared_info.h (console_state): Delete from here.
* tty.h: Make multiple inclusion safe.
* fhandler.cc (fhandler_base_overlapped::setup_overlapped): Explicitly set
io_pending to false.
(fhandler_base_overlapped::has_ongoing_io): Call GetOverlappedResult to force
completion of I/O.
(fhandler_base_overlapped::wait_overlapped): Rewrite to correctly deal with
nonblocking reads and to make more race proof.
(fhandler_base_overlapped::raw_write): Deal with new enum values.
(fhandler_base_overlapped::raw_read): Ditto. Don't deal with ongoing I/O here
since it makes no sense in the read context.
* fhandler.h (enum wait_return): Add overlapped_unknown,
overlapped_nonblocking_no_data.
* pipe.cc (pipe): Add debugging output.
(release_upto): Ditto.
(dll_list::reserve_space): New function to reserve space needed by DLL_LOAD
dlls early in the fork process.
(dll_list::load_after_fork): Rewrite to use recursion to track reservations it
makes while trying to make dlls land where they belong.
(dll_list::load_after_fork_impl): New function used by load_after_fork.
(dll_list::alloc): Initialize image base field.
* dll_init.h (dll_list::prefered_base): New field.
(dll_list::reserve_space): Declare new function.
(dll_list::load_after_fork): Declare new function.
* fork.cc (frok::child): call dll_list::reserve_space early, so we can retry if
it fails.
process group has no leader as this is allowed and does not imply an orphaned
process group. Add a test for orphaned process groups.
(tty_min::is_orphaned_process_group): Define new function.
* tty.h (tty_min::is_orphaned_process_group): Define new function.
for a module name only (no path).
(dll_list::alloc): Initialize newly-added members of struct dll.
(dll_list::append): New function to factor out the append operation
(used by dll_list::topsort).
(dll_list::populate_deps): New function to identify dll dependencies.
(dll_list::topsort): New function to sort the dll list topologically by
dependencies.
(dll_list::topsort_visit): New helper function for the above.
* dll_init.h (dll::ndeps): New class member.
(dll::deps): Ditto.
(dll::modname): Ditto.
(dll_list::find_by_modname): New function related to topsort.
(dll_list::populate_all_deps): Ditto.
(dll_list::populate_deps): Ditto.
(dll_list::topsort): Ditto.
(dll_list::topsort_visit): Ditto.
(dll_list::append): Ditto.
(pefile): New struct allowing simple introspection of dll images.
* fork.cc (fork): Topologically sort the dll list before forking
* child_info.h (CURR_CHILD_INFO_MAGIC): Refresh.
(child_info::refresh_cygheap): New function.
* spawn.cc (spawn_guts): Call refresh_cygheap before creating a new process to
ensure that cygheap_max is up-to-date.
* fork.cc (frok::parent): Ditto.
(reserve_at): Don't reserve space needed by the target dll if the latter
overlaps the free region to be blocked.
(dll_list::load_after_fork): Use new version of reserve_at.
* dll_init.h (dll::image_size): New member.
(pefile): New struct.
(release_upto): Ditto.
(dll_list::reserve_space): New function to reserve space needed by DLL_LOAD
dlls early in the fork process.
(dll_list::load_after_fork): Rewrite to use recursion for tracking reservations
made while trying to make dlls land where they belong.
(dll_list::load_after_fork_impl): Ditto.
(dll_list::alloc): Initialize image base field.
* dll_init.h (struct dll_list): declare new functions.
(dll::image_size): New member.
for a module name only (no path).
(dll_list::alloc): Initialize newly-added members of struct dll.
(dll_list::append): New function to factor out the append operation
(used by dll_list::topsort).
(dll_list::populate_deps): New function to identify dll dependencies.
(dll_list::topsort): New function to sort the dll list topologically by
dependencies.
(dll_list::topsort_visit): New helper function for the above.
* dll_init.h (dll::ndeps): New class member.
(dll::deps): Ditto.
(dll::modname): Ditto.
(dll_list::find_by_modname): New function related to topsort.
(dll_list::populate_all_deps): Ditto.
(dll_list::populate_deps): Ditto.
(dll_list::topsort): Ditto.
(dll_list::topsort_visit): Ditto.
(dll_list::append): Ditto.
(pefile): New struct allowing simple introspection of dll images.
* fork.cc (fork): Topologically sort the dll list before forking.
* fork.cc (frok::errmsg): Rename from 'error'.
(frok::error): New function. Handle conditional printing of error messages.
(frok::parent): Record hchild handle for use by error function. Use
throughout. Use error function rather than setting error pointer directly.
(fork): Clear is_forkee here. Accommodate rename of 'error' to 'errmsg'.
* sigproc.cc (child_info::proc_retry): Detect EXITCODE_FORK_FAILED.
* child_info.h: Redefine CURR_CHILD_INFO_MAGIC.
(child_info_fork::abort): Rename from handle_failure. Change arguments.
* cygtls.h (_local_storage::ttybuf): New field.
* dcrt0.cc (vapi_fatal): Split api_fatal. Add "in forked process" to message
when appropriate.
(api_fatal): Use vapi_fatal.
* devices.h: Make multiple inclusion safe.
(fh_devices): Add FH_CONS* stuff. Reorder slightly.
(device): Eliminate anonymous union. Add more ways to access minor/major.
(device::setunit): Accommodate no-longer-anonymous union.
(device::is_fs): Ditto.
(device::is_fs_special): Ditto.
(device::major): New function.
(device::minor): Ditto.
(device::is_device): New function.
(device::not_device): Ditto.
(device::operator int): New operator.
(device::operator fh_devices): Ditto.
(device::operator bool): Ditto.
(device::operator DWORD): Ditto.
(device::operator =): Ditto.
(isproc_dev): New function.
(isprocsys_dev): Ditto.
(iscons_dev): Ditto.
(istty_slave_dev): Ditto.
* devices.in: Add new "/dev/cons*" strings. Accommodate no-longer-anonymous
union throughout.
(BRACK): Use more precise method for initialization.
* devices.cc: Regenerate.
* dtable.cc (dtable::stdio_init): Use get_cttyp instead of get_tty.
(dtable::find_archetype): Use new DWORD operator in device to test archetypes.
(dtable::init_std_file_from_handle): Use different method to initialize 'dev'.
Adapt to different ctty handling and accommodate /dev/cons*.
(fh_alloc): Accommodate no-longer-anonymous union. Adapt to new /dev/cons*.
(build_fh_pc): Make debugging output more useful.
* exceptions.cc (ctrl_c_handler): Use get_cttyp instead of get_tty.
* external.cc (fillout_pinfo): Accommodate new cons* stuff.
* fhandler.cc (fhandler_base::read): Eliminate is_slow() test.
* fhandler.h (fhandler_base::*): Adapt to changes in device.h.
(fhandler_*::is_slow): Delete.
( fhandler_proc::get_proc_fhandler): Return fh_devices type.
* fhandler_console.cc (open_shared_console): New function.
(console_unit): New class.
(console_unit::console_unit): New constructor.
(enum_windows): New function. Declare as friend to console_unit.
(fhandler_console::set_unit): New function.
(fhandler_console::get_tty_stuff): Call set_unit to set the unit number and
determine if initialization is needed. Eliminate flags parameter.
(tty_list::get_cttyp): Rename (sorta) from get_tty. Return pointer to correct
tty_min.
(fhandler_console::open): Adapt to elimination of argument to get_tty_stuff.
(fhandler_console::output_tcsetattr): Properly detect error condition.
(fhandler_console::fixup_after_fork_exec): Adapt to get_tty_stuff() setting tc
automatically.
* fhandler_proc.cc: Use FH_BAD rather than 0 throughout where using fh_devices
enum.
(fhandler_proc::get_proc_fhandler): Return fh_devices. Adapt to devices.h
changes.
* fhandler_process.cc: Adapt to devices.h changes. Use FH_BAD rather than 0
throughout where using fh_devices enum.
* fhandler_procnet.cc: Ditto.
* fhandler_procsys.cc: Ditto.
* fhandler_procsysvipc.cc: Ditto.
* fhandler_tape.cc (fhandler_dev_tape::fhandler_dev_tape): Ditto.
* fhandler_termios.cc (handler_termios::bg_check): Use tc->ttyname() rather
than assuming that we can construct a tty.
* fhandler_tty.cc (fhandler_tty_master::fhandler_tty_master): Just return
get_minor() of dev.
(fhandler_pty_master::process_slave_output): Add slightly more debugging info.
(fhandler_tty_slave::fhandler_tty_slave): Change name from ntty to unit.
(fhandler_pty_master::open): Ditto.
(fhandler_tty_slave::ioctl): Adapt to change which causes ctty to represent a
complete device.
(fhandler_tty_master::init_console): Add debugging for failure path.
(fhandler_pty_master::setup): Use get_unit() to retrieve unit number rather
than relying on raw ntty.
(fhandler_pty_master::setup): Ditto.
* fhandler_virtual.h (virt_tab_t): Redefine fhandler as fh_devices.
* fork.cc: Remove obsolete vfork stuff.
(frok::child): Don't assume that a ctty == 0 is valid.
* mount.cc (mount_info::conv_to_win32_path): Adapt to device struct changes.
(mount_info::conv_to_win32_path): Ditto.
* path.cc (path_conv::check): Retrive major/minor numbers via a method rather
than accessing them directly from device. Rely on dev operators to
set/retrieve device information as required by device struct change.
* path.h (isproc_dev): Move to devices.h.
(isprocsys_dev): Ditto.
(isvirtual_dev): Ditto.
(path_conv:{isdevice,isfifo,isspecial,iscygdrive,issocket,get_devn,get_unitn}):
Use device methods to access/manipulate devices.
* pinfo.cc (pinfo::exit): Don't assume that ctty == 0 is valid. Use iscons_dev
to determine if a device is a console.
(_pinfo::_ctty): Use device::parse to generate tty/cons name.
(_pinfo::set_ctty): Don't assume that ctty == 0 is valid. Remove redundant
info from debugging.
* shared.cc (offsets): Remove console offset.
* shared_info.h (shared_locations): Ditto.
* syscalls.cc (umask): Use device methods to manipulate device information.
(ctermid): Use device::parse to generate term device name.
* tlsoffsets.h: Regenerate.
* tty.cc (ttyslot): Return minor number of ctty since ctty now represents a
full device.
(tty::create_master): Set ctty to a complete device.
(tty_list::attach): Rework to detect new /dev/cons* stuff.
(tty_list::terminate): Adapt to changes to ctty.
(tty_list::init): Adapt to change to setntty - pass in device major number.
(tty::exists): Use get_unit() to retrive tty unit number.
(tty::open_mutex): Ditto.
(tty::open_inuse): Ditto.
(tty::create_inuse): Ditto.
(tty::get_event): Ditto.
(tty_min::ttyname): Define new function.
* tty.h (tty_min::ntty): Redefine as fh_devices.
(tty::exists): Use get_unit() to retrive tty unit number.
(tty::open_mutex): Ditto.
(tty::open_inuse): Ditto.
(tty::create_inuse): Ditto.
(tty::get_event): Ditto.
(tty_min::ttyname): Declare new function.
(tty::getntty): Declare as const.
(tty_list::operator []): Assure that only minor part of argument is used.
* dll_init.cc (dll_list::alloc): Detect mismatch of data segments early issuing
an explicit error message if necessary.
* heap.cc (heap_init): Adapt to changes from fork->handle_failure to
fork->abort.
* pinfo.h (EXITCODE_FORK_FAILED): New enum. (from Ryan Johnson)
* sigproc.cc (child_info_fork::abort): Rename from handle_failure. Change
arguments to allow passing in a printf-like message.
* winsup.h (api_fatal): Delete macro definition.
(api_fatal): Redefine from __api_fatal.
(vapi_fatal): Declare new function.
* include/sys/strace.h (strace_vprintf): Define new macro.
* ntdll.h (_SYSTEM_INFORMATION_CLASS): Add SystemHandleInformation.
rather than cmalloc/cfree. Check return value from malloc before
using it.
(struct heap_info): Ditto.
(struct thread_info): Ditto. Rename from stack_info. Rename members
and local variables accordingly.
(thread_info::thread_info): Store stack and TEB addresses.
(thread_info::fill_if_match): Print "teb" if a TEB address has been
found. Special case for WOW64, explain why.
(format_process_maps): Fetch PEB address. Print MEM_RESERVE regions
with equal signs to distinguish them from PAGE_NOACCESS regions. Fix
printing of 'p' and 's' to differ between MEM_PRIVATE and MEM_MAPPED
pages, as on Linux. Print 'g' instead of 'p for PAGE_GUARD pages.
Print PEB and SharedUserData area if recognized.
members to char *. Print "shared" rather than "share".
(struct stack_info): New class to fetch process stack information.
(format_process_maps): Initialize and check for stack information.
(class child_info_fork): Remove stacksize, add stackaddr and guardsize
members.
* dcrt0.cc (child_info_fork::alloc_stack_hard_way): Partial rewrite
to regenerate the stack exactly as in the parent.
(child_info_fork::alloc_stack): Set stackaddr to 0, rather than
stacksize.
(dll_crt0_1): Check for stackaddr before changing the stack addresses
in the TEB.
* fork.cc (frok::child): Check for stackaddr here.
(frok::parent): Set ch.stackaddr and ch.guardsize if not called from
the main thread.
* init.cc (dll_entry): Replace pointer to NT_TIB with pointer to TEB.
Fix incorrectly changed address test before removing _my_tls.
Set StackLimit to NULL on Windows 2000. Explain why.
* miscfuncs.cc (struct thread_wrapper_arg): Store stackbase rather
than stacksize, store commitaddr, remove guardsize. Store all pointers
as char * for easier address arithmetic.
(thread_wrapper): Rewrite to remove OS stack before calling thread
function. Add lots of comments to explain what we do.
(CygwinCreateThread): Reserve our own stack in case we got no
application stack. Add comments.
* ntdll.h (struct _TEB): Extend defintion up to DeallocationStack
member.
* thread.cc (pthread_attr::pthread_attr): Use "(size_t) -1"
rather then 0xffffffff.
* wincap.h (wincaps::has_stack_size_param_is_a_reservation): New
element.
* wincap.cc: Implement above element throughout.
(pthread_getcpuclockid): Export.
* hires.h (PID_TO_CLOCKID): New macro.
(CLOCKID_TO_PID): New macro.
(CLOCKID_IS_PROCESS): New macro.
(THREADID_TO_CLOCKID): New macro.
(CLOCKID_TO_THREADID): New macro.
(CLOCKID_IS_THREAD): New macro.
* ntdll.h (enum _THREAD_INFORMATION_CLASS): Add ThreadTimes.
* posix.sgml (std-notimpl): Add clock_getcpuclockid and
pthread_getcpuclockid from here...
(std-susv4): ... to here.
(std-notes): Remove limitations of clock_getres and clock_gettime.
Note limitation of timer_create to CLOCK_REALTIME.
* sysconf.cc (sca): Set _SC_CPUTIME to _POSIX_CPUTIME, and
_SC_THREAD_CPUTIME to _POSIX_THREAD_CPUTIME.
* thread.cc (pthread_getcpuclockid): New function.
* timer.cc (timer_create): Set errno to ENOTSUP for CPU-time clocks.
* times.cc (clock_gettime): Handle CLOCK_PROCESS_CPUTIME_ID and
CLOCK_THREAD_CPUTIME_ID.
(clock_getres): Ditto.
(clock_settime): Set errno to EPERM for CPU-time clocks.
(clock_getcpuclockid): New function.
* include/pthread.h (pthread_getcpuclockid): Declare.
* include/cygwin/version.h (CYGWIN_VERSION_API_MINOR): Bump.
_localtime_buf. Remove username in favor of a global buffer. Reorder
slightly to keep the net.cc stuff together.
* globals.cc (__getlogin_username): New global char buffer.
* tlsoffsets.h: Regenerate.
* uinfo.cc (getlogin): Copy username into __getlogin_username.
requested stack is application-provided within the user heap or an
mmapped region. If so, just use it. Add comment to explain why.
* miscfuncs.cc (thread_wrapper): If an application-provided stack
has been given, implement cygtls area at the stackbase. Fix comment.
* mmap.cc (is_mmapped_region): New function.
* winsup.h (is_mmapped_region): Declare.
(pthread_attr_setguardsize): Export.
(pthread_attr_setstack): Export.
(pthread_attr_setstackaddr): Export.
* init.cc (dll_entry): Remove wow64_test_stack_marker. Check for
unusual stack address by testing stack addresses from current TEB.
Check validity of _my_tls by testing if it's within the stack as
given in current TEB.
* miscfuncs.cc (struct thread_wrapper_arg): New structure used to
push all required information to thread_wrapper function.
(thread_wrapper): Wrapper function for actual thread function.
If an application stack has been given, change %ebp and %esp so that
the thread function runs on that stack. If the thread has been created
by CygwinCreateThread, set up the POSIX guard pages if necessary.
(CygwinCreateThread): New function.
* miscfuncs.h (CygwinCreateThread): Declare.
* ntdll.h (struct _TEB): Define all members up to Peb.
* posix.sgml (std-susv4): Move pthread_attr_getguardsize,
pthread_attr_setguardsize and pthread_attr_setstack here.
(std-deprec): Add pthread_attr_setstackaddr.
* sysconf.cc (sca): Set _SC_THREAD_ATTR_STACKADDR to
_POSIX_THREAD_ATTR_STACKADDR.
* thread.cc (pthread::precreate): Copy pthread_attr stackaddr and
guardsize members.
(pthread::create): Call CygwinCreateThread.
(pthread_attr::pthread_attr): Initialize guardsize.
(pthread_attr_setstack): New function.
(pthread_attr_setstackaddr): New function.
(pthread_attr_setguardsize): New function.
(pthread_attr_getguardsize): New function.
(pthread_getattr_np): Copy attr.guardsize.
* thread.h (pthread_attr): Add member guardsize.
* include/pthread.h (pthread_attr_getguardsize): Declare.
(pthread_attr_setguardsize): Declare.
* include/cygwin/version.h: Bump API minor number.
uintptr_t. Add heap_id, end, flags members.
(heap_info::heap_vm_chunks): Rename from heaps.
(heap_info::heap_info): Rearrange using RtlQueryProcessDebugInformation
to get information of heap virtual memory blocks. Store heap id and
flags, as well as end address of each block.
(heap_info::fill_if_match): Check incoming base address against full
address range of heap chunks. Convert flag values in extra heap
information.
(format_process_maps): Change order so that heap check is done before
MEM_MAPPED check since there are shareable heaps.
* ntdll.h (PDI_HEAP_BLOCKS): Define.
(HEAP_FLAG_NOSERIALIZE): Define.
(HEAP_FLAG_GROWABLE): Define.
(HEAP_FLAG_EXCEPTIONS): Define.
(HEAP_FLAG_NONDEFAULT): Define.
(HEAP_FLAG_SHAREABLE): Define.
(HEAP_FLAG_EXECUTABLE): Define.
(HEAP_FLAG_DEBUGGED): Define.
(struct _DEBUG_HEAP_ARRAY): Define.
(struct _DEBUG_HEAP_BLOCK): Define.
* libc/time/strptime.c (is_leap_year): New static function.
(first_day): Ditto.
(__strptime): Fill in tm_yday when all of tm_year, tm_mon and tm_mday
are updated. Fill in tm_mon, tm_mday and tm_wday when both of tm_year
and tm_yday are updated.
Support RAM and swap space larger than 4GB.
Remove output elements not found with modern Linux kernels.
(format_proc_swaps): Support paging files larger than 4GB.
* dlfcn.cc (dlopen): Make sure errno is set if an error occurs.
(dlsym): Rewrite using RtlQueryProcessDebugInformation instead of
EnumProcessModules.
* ntdll.h (struct _DEBUG_MODULE_ARRAY): Define.
(RtlCreateQueryDebugBuffer): Declare.
(RtlDestroyQueryDebugBuffer): Declare.
(RtlQueryProcessDebugInformation): Declare.
all mapped address space in a process (committed or reserved),
identifying the nature of the mapping (mapped file/image, heap,
shared memory) when possible.
(dos_drive_mappings): New helper classes.
(heap_info): Ditto.
* ntdll.h (struct _MEMORY_SECTION_NAME): Define.
Make waiting loop interruptible and cancelable. Check for SYSTEM DOS
flag before reading the file. Change return value to return 0 on
success, SOCKET_ERROR on failure.
(fhandler_socket::bind): Only set R/O DOS flag on filesystems not
supporting ACLs.
(fhandler_socket::connect): Accommodate changed return values from
get_inet_addr. Use SOCKET_ERROR instead of -1.
(fhandler_socket::sendto): Accommodate changed return values from
get_inet_addr.
* syslog.cc (connect_syslogd): Ditto.
Set errno to EINVAL if tv.tv_nsec is invalid, and to EPERM if
SetSystemTime fails. Return -1 in case of failure, all for
compatibility with BSD and Linux.
(clock_settime): New function.
* cygwin.din (clock_settime): Export.
* posix.sgml (std-susv4): Add clock_settime.
Move clock_setres from here...
(std-deprec): ... to here.
(std-notes): Correct limitation of clock_setres to only CLOCK_REALTIME.
Add limitation of clock_settime to only CLOCK_REALTIME.
* include/cygwin/version.h (CYGWIN_VERSION_API_MINOR): Bump.
an archetype.
* fhandler_console.cc (fhandler_console::invisible_console): Move to the top.
(fhandler_console::set_close_on_exec): Don't set close-on-exec on handle since
it's an archetype and you don't know how many things could be using it.
* fhandler_tty.cc (fhandler_pty_master::process_slave_output): Put back
Sleep(10) for tty_master case.
* sigproc.cc (stopped_or_terminated): Don't consider a pid which has been
reaped to be terminated.
(fhandler_socket::write): Declare.
* fhandler_procsys.cc (fhandler_procsys::read): Add FIXME comment.
(fhandler_procsys::write): Ditto.
* fhandler_socket.cc (fhandler_socket::read): New method.
(fhandler_socket::write): New method.
* syscalls.cc: Rearrange order of read/write functions.
(read): Call fhandler read method directly instead of just readv.
(readv): Remove EINTR loop. This is done in all affected fhandler's
now.
(write): Call fhandler write method directly instead of just writev.
Fix debug output.
* debug.cc (close_handle): Call debugger on failure.
* devices.in (device::tty_to_real_device): Delete.
* devices.h (device::tty_to_real_device): Ditto.
* devices.cc: Regenerate.
* dtable.cc: Delete old ifdef'ed vfork code.
(dtable::release): Don't handle archetype here.
(dtable::init_std_file_from_handle): Consolidate console tests. Generate
major/minor for tty ASAP. Fix incorrect setting of DEV_TTYS* for serial.
(fh_alloc): New function derived from build_fh_pc. Pass current tty when
building tty.
(build_pc_pc): Use fh_alloc to create. Set name from fh->dev if appropriate.
Generate an archetype or point to one here.
(dtable::dup_worker): Deal with archetypes. Rely on = operator copying whole
class rather than just fhandler_base.
(dtable::fixup_after_exec): Call close_with_arch to handle closing of fhandlers
with archetypes.
* fhandler.cc (fhandler_base::operator =): Call memcpy with fhandler's size()
rather than sizeof fhandler_base.
(fhandler_base::open_with_arch): New function. Handles opening of fhandler's
with archetypes, dealing with usecounts, etc.
(fhandler_base::close_with_arch): Ditto for close.
* fhandler.h: Many changes for archetypes.
(fhandler_base::set_name): Set both normalized path and regular path.
(fhandler_base::open_with_arch): New function.
(fhandler_base::open_setup): Ditto.
(fhandler_base::use_archetype): Ditto.
(fhandler_base::_archetype_usecount): Ditto.
(fhandler_*::size): Ditto.
(fhandler_dev_tape::open): Remove virtual decoration.
(fhandler_console::use_archetype): New function. Return true.
(fhandler_console::open_setup): New function.
(fhandler_console::dup): Delete.
(fhandler_tty_slave::fhandler_tty_slave): Redeclare to take an argument.
(fhandler_tty_slave::use_archetype): New function. Return true.
(fhandler_tty_slave::cleanup): New function.
(fhandler_pty_master::use_archetype): New function. Return true.
(fhandler_pty_master::cleanup): New function.
(fhandler_pty_master::is_tty_master): New function. Return false.
(fhandler_tty_master::is_tty_master): New function. Return true.
(fhandler_dev_dsp::fhandler_dev_dsp): New function. Return true.
(report_tty_counts): Only report on archetype's usecount if there is one.
* fhandler_console.cc (fhandler_console::get_tty_stuff): Remove handling of
setsid, set_ctty, set_flags, and manage_console_count.
(fhandler_console::open_setup): New function. Implement functionality removed
from get_tty_stuff.
(fhandler_console::dup): Delete.
(fhandler_console::output_tcsetattr): Set errno on error.
(fhandler_console::fhandler_console): Set device early.
(fhandler_console::init): Use open_with_arch to open console handles.
(fhandler_console::fixup_after_fork_exec): Nuke most of the stuff for dealing
with console handles.
* fhandler_dsp.cc (fhandler_dev_dsp::open): Remove archetype handling.
(fhandler_dev_dsp::write): Ditto.
(fhandler_dev_dsp::read): Ditto.
(fhandler_dev_dsp::close): Ditto.
(fhandler_dev_dsp::dup): Ditto.
(fhandler_dev_dsp::ioctl): Ditto.
(fhandler_dev_dsp::fixup_after_fork): Ditto.
(fhandler_dev_dsp::fixup_after_exec): Ditto.
* fhandler_tty.cc (fhandler_tty_common::__acquire_output_mutex): Add a little
more debugging.
(fhandler_tty_common::__release_output_mutex): Ditto.
(fhandler_pty_master::process_slave_output): Ditto. Don't do signal handling
or pthread_cancel handling in the tty master thread.
(process_output): Minor reorg.
(fhandler_tty_slave::fhandler_tty_slave): Set device based on new ntty
argument.
(fhandler_tty_slave::open): Remove archetype handling. Move some processing
into open_setup().
(fhandler_tty_slave::open_setup): New function.
(fhandler_tty_slave::cleanup): New function.
(fhandler_tty_slave::close): Remove archetype handling. Move some processing
into cleanup().
(fhandler_tty_slave::init): Rename argument from f to h. Open device using
open_with_arch(). Remove archetype handling.
(fhandler_pty_master::dup): Ditto.
(fhandler_pty_master::open): Ditto.
(fhandler_pty_master::close): Ditto. Move some handling to cleanup().
(fhandler_pty_master::cleanup): New function.
(fhandler_tty_master::init_console): Give unique name to captive console
fhandler.
* pinfo.cc (_pinfo::set_ctty): Rename argument from arch to fh. Eliminate
archetype assumption.
* syscalls.cc (close_all_files): Use close_with_arch for closing.
(open): Use open_with_arch() rather than open().
(close): Use close_with_arch() rather than close().
parameter since we don't change the Win32 error here anymore.
(fhandler_base::raw_read): Accommodate change to is_at_eof.
* fhandler_disk_file.cc (fhandler_disk_file::pread): In binary mode use
direct call to NtReadFile, rather than lseek/read.
(fhandler_disk_file::pwrite): In binary mode use direct call to
NtWriteFile, rather than lseek/write.
in PID_EXITED state. Report pid 0 when pid does not exist rather than pid -1.
Make debug output reflect actual function call.
* sigproc.cc (stopped_or_terminated): Set process state to reaped when we've
finished waiting for it.
* include/sys/cygwin.h (PID_REAPED): New enum.
Christopher Faylor
Corinna Vinschen
Christian Franke
Yaakov Selkowitz
Pierre Humblet
Eric Blake