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/* Copyright (C) 2002, 2003, 2005, 2008 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <sysdep.h>
#include <inline-syscall.h>
#include <signal.h>
#include <unistd.h>
#include <stddef.h>
#include <not-cancel.h>
DECLARE_INLINE_SYSCALL (int64_t, lwp_sigmask, int how, unsigned int bits0,
unsigned int bits1);
#ifdef _LIBC_REENTRANT
static void cancel_handler (void *arg);
# define CLEANUP_HANDLER \
__libc_cleanup_region_start (1, cancel_handler, &pid)
# define CLEANUP_RESET \
__libc_cleanup_region_end (0)
#define FORK() __fork_block_signals (&pid)
static inline pid_t __fork_block_signals (pid_t *pid)
{
/* Block all signals. */
rval_t oldmask;
oldmask.rval64 = INLINE_SYSCALL (lwp_sigmask, 3, SIG_SETMASK,
(unsigned int)-1, (unsigned int)-1);
*pid = fork ();
/* Restore signals. */
(void)INLINE_SYSCALL (lwp_sigmask, 3, SIG_SETMASK,
(unsigned int)oldmask.rval1, (unsigned int)oldmask.rval2);
return *pid;
}
#endif
#include <sysdeps/posix/system.c>
#ifdef _LIBC_REENTRANT
/* The cancellation handler. */
static void
cancel_handler (void *arg)
{
pid_t child = *(pid_t *) arg;
__kill (child, SIGKILL);
TEMP_FAILURE_RETRY (__waitpid (child, NULL, 0));
DO_LOCK ();
if (SUB_REF () == 0)
{
(void) __sigaction (SIGQUIT, &quit, (struct sigaction *) NULL);
(void) __sigaction (SIGINT, &intr, (struct sigaction *) NULL);
}
DO_UNLOCK ();
}
#endif
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