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2003-01-28  Ulrich Drepper  <drepper@redhat.com>

	* sysdeps/unix/common/pause.c (do_pause): New function.  Split
	from __libc_pause.  Implement using sigsuspend.
	(__libc_pause): Call do_pause to do the real work.

	* sysdeps/posix/sigpause.c (do_sigpause): Check range of
	sig_or_mask parameter is is_sig != 0.
This commit is contained in:
Ulrich Drepper
2003-01-28 09:08:07 +00:00
parent 0566b130fb
commit 772e3426a7
3 changed files with 28 additions and 6 deletions
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20
sysdeps/unix/common/pause.c
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@ -1,4 +1,4 @@
/* Copyright (C) 1991, 1996, 2002 Free Software Foundation, Inc.
/* Copyright (C) 1991, 1996, 2002, 2003 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
@ -22,16 +22,28 @@
/* Suspend the process until a signal arrives.
This always returns -1 and sets errno to EINTR. */
static void
do_pause (void)
{
sigset_t set;
sigemptyset (&set);
__sigsuspend (&set);
}
int
__libc_pause (void)
{
if (SINGLE_THREAD_P)
return __sigpause (__sigblock (0), 0);
{
do_pause ();
return -1;
}
int oldtype = LIBC_CANCEL_ASYNC ();
int result = __sigpause (__sigblock (0), 0);
(void) do_pause ();
LIBC_CANCEL_RESET (oldtype);
return result;
return -1;
}
weak_alias (__libc_pause, pause)