diff options
Diffstat (limited to 'sysdeps/pthread/aio_notify.c')
| -rw-r--r-- | sysdeps/pthread/aio_notify.c | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/sysdeps/pthread/aio_notify.c b/sysdeps/pthread/aio_notify.c index 047b6314a0..d1c0a63fbf 100644 --- a/sysdeps/pthread/aio_notify.c +++ b/sysdeps/pthread/aio_notify.c @@ -1,5 +1,5 @@ /* Notify initiator of AIO request. - Copyright (C) 1997,98,99,2000,01 Free Software Foundation, Inc. + Copyright (C) 1997,98,99,2000,2001,2003 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997. @@ -45,12 +45,16 @@ notify_func_wrapper (void *arg) int internal_function +#ifdef BROKEN_THREAD_SIGNALS __aio_notify_only (struct sigevent *sigev, pid_t caller_pid) +#else +__aio_notify_only (struct sigevent *sigev) +#endif { int result = 0; /* Send the signal to notify about finished processing of the request. */ - if (sigev->sigev_notify == SIGEV_THREAD) + if (__builtin_expect (sigev->sigev_notify == SIGEV_THREAD, 0)) { /* We have to start a thread. */ pthread_t tid; @@ -91,9 +95,15 @@ __aio_notify_only (struct sigevent *sigev, pid_t caller_pid) #if _POSIX_REALTIME_SIGNALS /* Note that the standard gives us the option of using a plain non-queuing signal here when SA_SIGINFO is not set for the signal. */ +# ifdef BROKEN_THREAD_SIGNALS if (__aio_sigqueue (sigev->sigev_signo, sigev->sigev_value, caller_pid) < 0) result = -1; +# else + if (__aio_sigqueue (sigev->sigev_signo, sigev->sigev_value, getpid ()) + < 0) + result = -1; +# endif #else /* There are no queued signals on this system at all. */ result = raise (sigev->sigev_signo); @@ -111,7 +121,11 @@ __aio_notify (struct requestlist *req) struct waitlist *waitlist; struct aiocb *aiocbp = &req->aiocbp->aiocb; +#ifdef BROKEN_THREAD_SIGNALS if (__aio_notify_only (&aiocbp->aio_sigevent, req->caller_pid) != 0) +#else + if (__aio_notify_only (&aiocbp->aio_sigevent) != 0) +#endif { /* XXX What shall we do if already an error is set by read/write/fsync? */ @@ -135,7 +149,11 @@ __aio_notify (struct requestlist *req) this request is the last one, send the signal. */ if (*waitlist->counterp == 0) { +#ifdef BROKEN_THREAD_SIGNALS __aio_notify_only (waitlist->sigevp, waitlist->caller_pid); +#else + __aio_notify_only (waitlist->sigevp); +#endif /* This is tricky. See lio_listio.c for the reason why this works. */ free ((void *) waitlist->counterp); |