glibc/setjmp/sigjmp.c

37 lines
1.2 KiB
C
Raw Normal View History

1995-02-18 01:27:10 +00:00
/* Copyright (C) 1992, 1994 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 Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#include <ansidecl.h>
#include <stddef.h>
#include <setjmp.h>
#include <signal.h>
/* This function is called by the `sigsetjmp' macro
before doing a `__setjmp' on ENV[0].__jmpbuf.
Always return zero. */
int
DEFUN(__sigjmp_save, (env, savemask), sigjmp_buf env AND int savemask)
{
env[0].__mask_was_saved = (savemask &&
__sigprocmask (SIG_BLOCK, (sigset_t *) NULL,
&env[0].__saved_mask) == 0);
return 0;
}