f6936c48f3
* cygwin.din: Make clock SIGFE. Add clock_gettime, sigwaitinfo, timer_create, timer_delete, timer_settime. * include/cygwin/version.h: Reflect above additions. * fork.cc (fork_child): Call fixup_timers_after_fork. * signal.cc (sigwait): Remove unused variable. * timer.cc: New file. (clock_gettime): Define new function. (timer_tracker): Define new struct used by timer functions. (timer_tracker::timer_tracker): New function. (to_us): New function. (timer_thread): New function. (timer_tracker::settime): New function. (timer_create): New function. (timer_settime): New function. (timer_delete): New function. (fixup_timers_after_fork): New function. * cygthread.cc: Bump thread count. * signal.cc (sigwaitinfo): Define new function. (sigwait): Redefine based on sigwaitinfo. * include/cygwin/signal.h (sigwaitinfo): Declare. (sigwait): Ditto. * dtable.cc (dtable::vfork_parent_restore): Avoid double close of ctty when ctty == ctty_on_hold. * cygtls.h (_threadinfo::threadkill): New element. (_threadinfo::set_threadkill): Declare new function. (_threadinfo::reset_threadkill): Declare new function. * dcrt0.cc (dcrt0_1): Call here so that it will be possible to attach to running process with #(*& Windows Me/9x. (initial_env): Try to initialize strace if uninitialized. * gendef: Don't zero signal if threadkill is set since that will happen in the called function. * signal.cc (sigwait): Ensure cleanup in error conditions. * sigproc.cc (sig_send): Clear packet mask storage. (wait_subproc): Fill in child exit code in siginfo_t structure. * thread.cc (pthread_kill): Set threadkill flag. * tlsoffsets.h: Regenerate. Throughout, use siginfo_t to fill out all signal information for "kernel" signals. * cygtls.h (_threadinfo::set_siginfo): Declare new function. * cygtls.cc (_threadinfo::set_siginfo): Define new function. * dcrt0.cc (do_exit): Accommodate siginfo_t considerations. * exceptions.cc (handle_exceptions): Ditto. (sig_handle_tty_stop): Ditto. (ctrl_c_handler): Use killsys() to send signal. (sigpacket::process): Rename from sig_handle. Use siginfo_t field from sigpacket for everything. (tty_min::kill_pgrp): Accommodate siginfo_t considerations. (fhandler_termios::bg_check): Ditto. * fhandler_tty.cc (fhandler_tty_slave::ioctl): Use killsys() to send signal. * signal.cc (kill_worker): Rewrite to use siginfo_t second argument. (kill_pgrp): Ditto. (kill0): Define new function pulled from kill(). (kill): Rewrite as frontend to kill0. (killsys): Define new function. * sigproc.cc (sigelem): Eliminate. (sigpacket): Move to sigproc.h. Subsume sigelem. (pending_signals): Use sigpacket rather than sigelem for everything. (sig_clear): Ditto. (wait_sig): Ditto. (sig_send): Rewrite to use siginfo_t argument. (sig_send): New function wratpper to sig_send with siginfo_t argument. (wait_subproc): Accommodate siginfo_t considerations. * thread.cc (pthread_kill): Ditto. * sigproc.h (sigpacket): Move here. (sigpacket::process): Declare "new" function. (sig_handle): Eliminate declaration. (sig_send): Declare with new paramaters. (killsys): Declare new function. (kill_pgrp): Declare. * winsup.h: Move some signal-specific stuff to sigproc.h. * include/cygwin/signal.h: Tweak some siginfo_t stuff.
111 lines
2.9 KiB
C++
111 lines
2.9 KiB
C++
/* sigproc.h
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Copyright 1997, 1998, 2000, 2001, 2002, 2003 Red Hat, Inc.
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This file is part of Cygwin.
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This software is a copyrighted work licensed under the terms of the
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Cygwin license. Please consult the file "CYGWIN_LICENSE" for
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details. */
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#ifndef _SIGPROC_H
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#define _SIGPROC_H
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#include <signal.h>
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#define EXIT_SIGNAL 0x010000
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#define EXIT_REPARENTING 0x020000
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#define EXIT_NOCLOSEALL 0x040000
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#ifdef NSIG
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enum
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{
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__SIGFLUSH = -(NSIG + 1),
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__SIGSTRACE = -(NSIG + 2),
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__SIGCOMMUNE = -(NSIG + 3),
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__SIGPENDING = -(NSIG + 4)
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};
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#endif
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#define SIG_BAD_MASK (1 << (SIGKILL - 1))
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enum procstuff
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{
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PROC_ADDCHILD = 1, // add a new subprocess to list
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PROC_CHILDTERMINATED = 2, // a child died
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PROC_CLEARWAIT = 3, // clear all waits - signal arrived
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PROC_WAIT = 4, // setup for wait() for subproc
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PROC_NOTHING = 5 // nothing, really
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};
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typedef struct struct_waitq
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{
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int pid;
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int options;
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int status;
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HANDLE ev;
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void *rusage; /* pointer to potential rusage */
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struct struct_waitq *next;
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HANDLE thread_ev;
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} waitq;
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struct sigpacket
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{
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siginfo_t si;
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pid_t pid;
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class _threadinfo *tls;
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sigset_t *mask;
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sigset_t mask_storage;
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union
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{
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HANDLE wakeup;
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struct sigpacket *next;
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};
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int __stdcall process () __attribute__ ((regparm (1)));
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};
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extern HANDLE signal_arrived;
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extern HANDLE sigCONT;
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bool __stdcall my_parent_is_alive ();
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int __stdcall sig_dispatch_pending ();
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#ifdef _PINFO_H
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extern "C" void __stdcall set_signal_mask (sigset_t newmask, sigset_t = myself->getsigmask ());
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#endif
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int __stdcall handle_sigprocmask (int sig, const sigset_t *set,
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sigset_t *oldset, sigset_t& opmask)
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__attribute__ ((regparm (3)));
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extern "C" void __stdcall reset_signal_arrived ();
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extern "C" int __stdcall call_signal_handler_now ();
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void __stdcall sig_clear (int) __attribute__ ((regparm (1)));
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void __stdcall sig_set_pending (int) __attribute__ ((regparm (1)));
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int __stdcall handle_sigsuspend (sigset_t);
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int __stdcall proc_subproc (DWORD, DWORD) __attribute__ ((regparm (2)));
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class _pinfo;
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void __stdcall proc_terminate ();
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void __stdcall sigproc_init ();
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void __stdcall subproc_init ();
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void __stdcall sigproc_terminate ();
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bool __stdcall proc_exists (_pinfo *) __attribute__ ((regparm(1)));
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bool __stdcall pid_exists (pid_t) __attribute__ ((regparm(1)));
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int __stdcall sig_send (_pinfo *, siginfo_t&, class _threadinfo *tls = NULL) __attribute__ ((regparm (3)));
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int __stdcall sig_send (_pinfo *, int) __attribute__ ((regparm (2)));
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void __stdcall signal_fixup_after_fork ();
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void __stdcall signal_fixup_after_exec ();
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void __stdcall wait_for_sigthread ();
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void __stdcall sigalloc ();
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int kill_pgrp (pid_t, siginfo_t&);
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int killsys (pid_t, int);
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extern char myself_nowait_dummy[];
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extern struct sigaction *global_sigs;
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#define WAIT_SIG_PRIORITY THREAD_PRIORITY_TIME_CRITICAL
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#define myself_nowait ((_pinfo *)myself_nowait_dummy)
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#endif /*_SIGPROC_H*/
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