diff options
Diffstat (limited to 'sysdeps/l4/hurd/pt-sigstate.c')
| -rw-r--r-- | sysdeps/l4/hurd/pt-sigstate.c | 52 |
1 files changed, 50 insertions, 2 deletions
diff --git a/sysdeps/l4/hurd/pt-sigstate.c b/sysdeps/l4/hurd/pt-sigstate.c index 8ab80347..66dd08cf 100644 --- a/sysdeps/l4/hurd/pt-sigstate.c +++ b/sysdeps/l4/hurd/pt-sigstate.c @@ -1,5 +1,5 @@ /* Set a thread's signal state. Hurd on L4 version. - Copyright (C) 2002, 2005 Free Software Foundation, Inc. + Copyright (C) 2002, 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 @@ -28,6 +28,54 @@ __pthread_sigstate (struct __pthread *thread, int how, const sigset_t *set, sigset_t *oset, int clear_pending) { - /* FIXME: Do the right thing here. */ + struct signal_state *ss = &thread->ss; + pthread_mutex_lock (&ss->lock); + + if (oset) + *oset = ss->blocked; + + if (set) + { + /* Mask out SIGKILL and SIGSTOP. */ + sigset_t s = *set; + sigdelset (&s, SIGKILL); + sigdelset (&s, SIGSTOP); + + switch (how) + { + case SIG_BLOCK: + ss->blocked |= s; + break; + case SIG_UNBLOCK: + ss->blocked &= ~s; + break; + case SIG_SETMASK: + ss->blocked = s; + break; + default: + errno = EINVAL; + pthread_mutex_unlock (&ss->lock); + return -1; + } + } + + if (clear_pending) + sigemptyset (&ss->pending); + + /* A "signal shall remain pending until it is unblocked" (2.4.1). + + "If there are any pending unblocked signals after the call to + sigprocmask(), at least one of those signals shall be delivered + before the call to sigprocmask() returns." + (pthread_sigmask). */ + sigset_t extant = ~ss->blocked & ss->pending; + if (! extant) + extant = ~ss->blocked & process_pending; + + pthread_mutex_unlock (&ss->lock); + + if (extant) + raise (l4_lsb64 (extant)); + return 0; } |