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Update. 

1999-08-03  Andreas Schwab  <schwab@suse.de>

	* sysdeps/posix/sigset.c: Unblock the signal after setting its
	disposition.  Use SIG_BLOCK/SIG_UNBLOCK instead of SIG_SETMASK to
	avoid two calls to sigprocmask.
This commit is contained in:
Ulrich Drepper 1999-08-03 17:09:27 +00:00
parent d03db7f0c7
commit 4bdd64534f
2 changed files with 23 additions and 6 deletions
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6
ChangeLog
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@ -1,3 +1,9 @@
1999-08-03 Andreas Schwab <schwab@suse.de>
* sysdeps/posix/sigset.c: Unblock the signal after setting its
disposition. Use SIG_BLOCK/SIG_UNBLOCK instead of SIG_SETMASK to
avoid two calls to sigprocmask.
1999-08-02 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/generic/s_nexttowardf.c: Fix typo.

23
sysdeps/posix/sigset.c
View File

@ -29,23 +29,22 @@ sigset (sig, disp)
__sighandler_t disp;
{
struct sigaction act, oact;
sigset_t set;
#ifdef SIG_HOLD
/* Handle SIG_HOLD first. */
if (disp == SIG_HOLD)
{
sigset_t set;
/* Retrieve current signal set. */
if (__sigprocmask (SIG_SETMASK, NULL, &set) < 0)
/* Create an empty signal set. */
if (__sigemptyset (&set) < 0)
return SIG_ERR;
/* Add the specified signal. */
if (sigaddset (&set, sig) < 0)
return SIG_ERR;
/* Set the new mask. */
if (__sigprocmask (SIG_SETMASK, &set, NULL) < 0)
/* Add the signal set to the current signal mask. */
if (__sigprocmask (SIG_BLOCK, &set, NULL) < 0)
return SIG_ERR;
return SIG_HOLD;
@ -66,5 +65,17 @@ sigset (sig, disp)
if (__sigaction (sig, &act, &oact) < 0)
return SIG_ERR;
/* Create an empty signal set. */
if (__sigemptyset (&set) < 0)
return SIG_ERR;
/* Add the specified signal. */
if (sigaddset (&set, sig) < 0)
return SIG_ERR;
/* Remove the signal set from the current signal mask. */
if (__sigprocmask (SIG_UNBLOCK, &set, NULL) < 0)
return SIG_ERR;
return oact.sa_handler;
}