newlib-cygwin/winsup/cygwin/cygerrno.h

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/* cygerrno.h: main Cygwin header file.
Copyright 2000, 2001, 2002, 2003, 2004, 2010, 2011 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. */
#ifndef _CYGERRNO_H
#define _CYGERRNO_H
#include <errno.h>
* Makefile.in: Remove some obsolete stuff. * dcrt0.cc (dll_crt0_1): Call signal_fixup_after_exec where appropriate. Set myself->uid from parent version. Just use ThreadItem Init method. Close or store hexec_proc as appropriate. (_dll_crt0): Store user_data->forkee here so that proper tests can be made subsequently. (do_exit): Remove hExeced stuff. * environ.cc (environ_init): Accept environ count as well as environ pointer. * environ.h: Reflect above change. * pinfo.cc (pinfo_init): Ditto. Accept environ count. (fixup_in_spawned_child): Remove. * spawn.cc (spawn_guts): Move signal code to dll_crt0_1. Don't suspend execing process since it is no longer necessary. Store envc. * exceptions.cc (signal_fixup_after_exec): New function. (call_handler): Remove hExeced test. * child_info.h (cygheap_exec_info): Store envc as well as envp. (child_info_spawn): Store hexec_proc so that it can be closed in child. * path.cc (normalize_posix_path): Avoid intermediate use of temporary cwd buf. (normalize_win32_path): Ditto. (cwdstuff::get_initial): Always set lock. * sigproc.h: Remove hExeced. * strace.cc (strace::vsprntf): Modify to accomodate for lack of hExeced. * thread.cc (MTinterface::Init): Merge Init1 and ClearReent into this method. (MTinterface::Init1): Eliminate. (MTinterface::ClearReent): Eliminate. * thread.h: Reflect above changes. * include/sys/strace.h (strace): Make microseconds() public. Make various functions 'regparm', throughout. * pinfo.h (_pinfo): Inline simple signal manipulation functions. Requires inclusion of thread.h which was removed from .cc files, where appropriate. throughout. * pinfo.cc: Eliminate signal manipulation functions. (_pinfo::exit): Calculate total rusage for exiting process here. * cygheap.cc (size2bucket): Eliminate. (init_buckets): Ditto. (_cmalloc): Calculate size and bits in a loop rather than going through a function call. (_crealloc): Use stored array index to calculate allocated size. * spawn.cc (spawn_guts): Use _pinfo exit method to exit, calculating cpu usage.
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void __stdcall seterrno_from_win_error (const char *file, int line, DWORD code) __attribute__ ((regparm(3)));
void __stdcall seterrno_from_nt_status (const char *file, int line, NTSTATUS status) __attribute__ ((regparm(3)));
* Makefile.in: Remove some obsolete stuff. * dcrt0.cc (dll_crt0_1): Call signal_fixup_after_exec where appropriate. Set myself->uid from parent version. Just use ThreadItem Init method. Close or store hexec_proc as appropriate. (_dll_crt0): Store user_data->forkee here so that proper tests can be made subsequently. (do_exit): Remove hExeced stuff. * environ.cc (environ_init): Accept environ count as well as environ pointer. * environ.h: Reflect above change. * pinfo.cc (pinfo_init): Ditto. Accept environ count. (fixup_in_spawned_child): Remove. * spawn.cc (spawn_guts): Move signal code to dll_crt0_1. Don't suspend execing process since it is no longer necessary. Store envc. * exceptions.cc (signal_fixup_after_exec): New function. (call_handler): Remove hExeced test. * child_info.h (cygheap_exec_info): Store envc as well as envp. (child_info_spawn): Store hexec_proc so that it can be closed in child. * path.cc (normalize_posix_path): Avoid intermediate use of temporary cwd buf. (normalize_win32_path): Ditto. (cwdstuff::get_initial): Always set lock. * sigproc.h: Remove hExeced. * strace.cc (strace::vsprntf): Modify to accomodate for lack of hExeced. * thread.cc (MTinterface::Init): Merge Init1 and ClearReent into this method. (MTinterface::Init1): Eliminate. (MTinterface::ClearReent): Eliminate. * thread.h: Reflect above changes. * include/sys/strace.h (strace): Make microseconds() public. Make various functions 'regparm', throughout. * pinfo.h (_pinfo): Inline simple signal manipulation functions. Requires inclusion of thread.h which was removed from .cc files, where appropriate. throughout. * pinfo.cc: Eliminate signal manipulation functions. (_pinfo::exit): Calculate total rusage for exiting process here. * cygheap.cc (size2bucket): Eliminate. (init_buckets): Ditto. (_cmalloc): Calculate size and bits in a loop rather than going through a function call. (_crealloc): Use stored array index to calculate allocated size. * spawn.cc (spawn_guts): Use _pinfo exit method to exit, calculating cpu usage.
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void __stdcall seterrno (const char *, int line) __attribute__ ((regparm(2)));
int __stdcall geterrno_from_win_error (DWORD code = GetLastError (), int deferrno = 13 /*EACCESS*/) __attribute__ ((regparm(2)));
int __stdcall geterrno_from_nt_status (NTSTATUS status, int deferrno = 13 /*EACCESS*/) __attribute__ ((regparm(2)));
#define __seterrno() seterrno (__FILE__, __LINE__)
#define __seterrno_from_win_error(val) seterrno_from_win_error (__FILE__, __LINE__, val)
#define __seterrno_from_nt_status(status) seterrno_from_nt_status (__FILE__, __LINE__, status)
inline int
__set_errno (const char *fn, int ln, int val)
{
* cygerrno.h (__set_errno): Modify debugging output to make searching strace 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.
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debug_printf ("%s:%d setting errno %d", fn, ln, val);
return errno = _impure_ptr->_errno = val;
}
#define set_errno(val) __set_errno (__PRETTY_FUNCTION__, __LINE__, (val))
#define get_errno() (errno)
extern "C" void __stdcall set_sig_errno (int e);
class save_errno
{
int saved;
public:
save_errno () {saved = get_errno ();}
save_errno (int what) {saved = get_errno (); set_errno (what); }
void set (int what) {set_errno (what); saved = what;}
void reset () {saved = get_errno ();}
~save_errno () {errno = _impure_ptr->_errno = saved;}
};
extern const char *__sp_fn;
extern int __sp_ln;
#endif /*_CYGERRNO_H*/