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Diffstat (limited to 'winsup/cygwin/sigproc.h')
| -rw-r--r-- | winsup/cygwin/sigproc.h | 173 |
1 files changed, 0 insertions, 173 deletions
diff --git a/winsup/cygwin/sigproc.h b/winsup/cygwin/sigproc.h deleted file mode 100644 index a5a2e04c5..000000000 --- a/winsup/cygwin/sigproc.h +++ /dev/null @@ -1,173 +0,0 @@ -/* sigproc.h - - Copyright 1997, 1998, 2000, 2001, 2002, 2003, 2004, 2005, 2006, - 2011, 2012 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. */ - -#pragma once -#include <signal.h> -#include "sync.h" - -#ifdef NSIG -enum -{ - __SIGFLUSH = -(NSIG + 1), - __SIGSTRACE = -(NSIG + 2), - __SIGCOMMUNE = -(NSIG + 3), - __SIGPENDING = -(NSIG + 4), - __SIGDELETE = -(NSIG + 5), - __SIGFLUSHFAST = -(NSIG + 6), - __SIGHOLD = -(NSIG + 7), - __SIGNOHOLD = -(NSIG + 8), - __SIGEXIT = -(NSIG + 9), - __SIGSETPGRP = -(NSIG + 10) -}; -#endif - -#define SIG_BAD_MASK (1 << (SIGKILL - 1)) - -enum procstuff -{ - PROC_ADDCHILD = 1, // add a new subprocess to list - PROC_REATTACH_CHILD = 2, // reattach after exec - PROC_EXEC_CLEANUP = 3, // cleanup waiting children after exec - PROC_DETACHED_CHILD = 4, // set up a detached child - PROC_CLEARWAIT = 5, // clear all waits - signal arrived - PROC_WAIT = 6, // setup for wait() for subproc - PROC_EXECING = 7, // used to get a lock when execing - PROC_NOTHING = 8 // nothing, really -}; - -struct sigpacket -{ - siginfo_t si; - pid_t pid; - class _cygtls *sigtls; - sigset_t *mask; - union - { - HANDLE wakeup; - HANDLE thread_handle; - struct sigpacket *next; - }; - int __stdcall process () __attribute__ ((regparm (1))); - int setup_handler (void *, struct sigaction&, _cygtls *) - __attribute__ ((regparm (3))); -}; - -void __stdcall sig_dispatch_pending (bool fast = false) - __attribute__ ((regparm (1))); -void set_signal_mask (sigset_t&, sigset_t) __attribute__ ((regparm (2))); -int __stdcall handle_sigprocmask (int sig, const sigset_t *set, - sigset_t *oldset, sigset_t& opmask) - __attribute__ ((regparm (3))); - -void __stdcall sig_clear (int) __attribute__ ((regparm (1))); -void __stdcall sig_set_pending (int) __attribute__ ((regparm (1))); -int __stdcall handle_sigsuspend (sigset_t); - -int __stdcall proc_subproc (DWORD, DWORD) __attribute__ ((regparm (2))); - -class _pinfo; -void __stdcall proc_terminate (); -void __stdcall sigproc_init (); -#ifdef __INSIDE_CYGWIN__ -void __stdcall sigproc_terminate (enum exit_states); -#endif -bool __stdcall pid_exists (pid_t) __attribute__ ((regparm(1))); -int __stdcall sig_send (_pinfo *, siginfo_t&, class _cygtls * = NULL) __attribute__ ((regparm (3))); -int __stdcall sig_send (_pinfo *, int, class _cygtls * = NULL) __attribute__ ((regparm (3))); -void __stdcall signal_fixup_after_exec (); -void __stdcall sigalloc (); - -int kill_pgrp (pid_t, siginfo_t&); -int killsys (pid_t, int); - -extern "C" void sigdelayed (); - -extern char myself_nowait_dummy[]; - -extern struct sigaction *global_sigs; - -class lock_signals -{ - bool worked; -public: - lock_signals () - { - worked = sig_send (NULL, __SIGHOLD) == 0; - } - operator int () const - { - return worked; - } - void dont_bother () - { - worked = false; - } - ~lock_signals () - { - if (worked) - sig_send (NULL, __SIGNOHOLD); - } -}; - -class lock_pthread -{ - bool bother; -public: - lock_pthread (): bother (1) - { - pthread::atforkprepare (); - } - void dont_bother () - { - bother = false; - } - ~lock_pthread () - { - if (bother) - pthread::atforkparent (); - } -}; - -class hold_everything -{ - bool ischild; - /* Note the order of the locks below. It is important, - to avoid races, that the lock order be preserved. - - pthread is first because it serves as a master lock - against other forks being attempted while this one is active. - - signals is next to stop signal processing for the duration - of the fork. - - process is last. If it is put before signals, then a deadlock - could be introduced if the process attempts to exit due to a signal. */ - lock_pthread pthread; - lock_signals signals; - lock_process process; - -public: - hold_everything (bool x = false): ischild (x) {} - operator int () const {return signals;} - - ~hold_everything() - { - if (ischild) - { - pthread.dont_bother (); - process.dont_bother (); - signals.dont_bother (); - } - } - -}; - -#define myself_nowait ((_pinfo *) myself_nowait_dummy) |