diff options
Diffstat (limited to 'lib/libpthread/thread/thr_sigmask.c')
| -rw-r--r-- | lib/libpthread/thread/thr_sigmask.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/lib/libpthread/thread/thr_sigmask.c b/lib/libpthread/thread/thr_sigmask.c index c8fcec8..3fd6df7 100644 --- a/lib/libpthread/thread/thr_sigmask.c +++ b/lib/libpthread/thread/thr_sigmask.c @@ -46,16 +46,21 @@ int _pthread_sigmask(int how, const sigset_t *set, sigset_t *oset) { struct pthread *curthread = _get_curthread(); + sigset_t oldset, newset; int ret; if (! _kse_isthreaded()) _kse_setthreaded(1); + if (set) + newset = *set; + THR_SCHED_LOCK(curthread, curthread); + ret = 0; if (oset != NULL) /* Return the current mask: */ - *oset = curthread->sigmask; + oldset = curthread->sigmask; /* Check if a new signal set was provided by the caller: */ if (set != NULL) { @@ -64,19 +69,19 @@ _pthread_sigmask(int how, const sigset_t *set, sigset_t *oset) /* Block signals: */ case SIG_BLOCK: /* Add signals to the existing mask: */ - SIGSETOR(curthread->sigmask, *set); + SIGSETOR(curthread->sigmask, newset); break; /* Unblock signals: */ case SIG_UNBLOCK: /* Clear signals from the existing mask: */ - SIGSETNAND(curthread->sigmask, *set); + SIGSETNAND(curthread->sigmask, newset); break; /* Set the signal process mask: */ case SIG_SETMASK: /* Set the new mask: */ - curthread->sigmask = *set; + curthread->sigmask = newset; break; /* Trap invalid actions: */ @@ -96,5 +101,8 @@ _pthread_sigmask(int how, const sigset_t *set, sigset_t *oset) _thr_sig_check_pending(curthread); } else THR_SCHED_UNLOCK(curthread, curthread); + + if (ret == 0 && oset != NULL) + *oset = oldset; return (ret); } |
