sysdeps/pthread/bits/sigthread.h

   1 /* Signal handling function for threaded programs.
   2    Copyright (C) 1998-2023 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public License as
   7    published by the Free Software Foundation; either version 2.1 of the
   8    License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; see the file COPYING.LIB.  If
  17    not, see <https://www.gnu.org/licenses/>.  */
  18
  19 #ifndef _BITS_SIGTHREAD_H
  20 #define _BITS_SIGTHREAD_H       1
  21
  22 #if !defined _SIGNAL_H && !defined _PTHREAD_H
  23 # error "Never include this file directly.  Use <signal.h> instead"
  24 #endif
  25
  26 /* Functions for handling signals. */
  27 #include <bits/types/__sigset_t.h>
  28
  29 /* Modify the signal mask for the calling thread.  The arguments have
  30    the same meaning as for sigprocmask(2). */
  31 extern int pthread_sigmask (int __how,
  32                             const __sigset_t *__restrict __newmask,
  33                             __sigset_t *__restrict __oldmask)__THROW;
  34
  35 /* Send signal SIGNO to the given thread. */
  36 extern int pthread_kill (pthread_t __threadid, int __signo) __THROW;
  37
  38 #ifdef __USE_GNU
  39 /* Queue signal and data to a thread.  */
  40 extern int pthread_sigqueue (pthread_t __threadid, int __signo,
  41                              const union sigval __value) __THROW;
  42 #endif
  43
  44 #endif  /* bits/sigthread.h */