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2004-11-17 Roland McGrath <roland@redhat.com>

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* sysdeps/unix/sysv/linux/timer_routines.c (__start_helper_thread):
	Make sure SIGCANCEL is blocked as well.
This commit is contained in:
Roland McGrath
2004-11-17 21:26:59 +00:00
parent 579e2d6ef1
commit 0086214c64
1 changed files with 4 additions and 1 deletions
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5
nptl/sysdeps/unix/sysv/linux/timer_routines.c
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@ -122,10 +122,13 @@ __start_helper_thread (void)
(void) pthread_attr_setstacksize (&attr, PTHREAD_STACK_MIN); (void) pthread_attr_setstacksize (&attr, PTHREAD_STACK_MIN);
/* Block all signals in the helper thread. To do this thoroughly we /* Block all signals in the helper thread. To do this thoroughly we
temporarily have to block all signals here. */ temporarily have to block all signals here. The helper can lose
wakeups if SIGCANCEL is not blocked throughout, but sigfillset omits
it. So, we add it back explicitly here. */
sigset_t ss; sigset_t ss;
sigset_t oss; sigset_t oss;
sigfillset (&ss); sigfillset (&ss);
__sigaddset (&ss, SIGCANCEL);
INTERNAL_SYSCALL_DECL (err); INTERNAL_SYSCALL_DECL (err);
INTERNAL_SYSCALL (rt_sigprocmask, err, 4, SIG_SETMASK, &ss, &oss, _NSIG / 8); INTERNAL_SYSCALL (rt_sigprocmask, err, 4, SIG_SETMASK, &ss, &oss, _NSIG / 8);