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| author | Ulrich Drepper <drepper@redhat.com> | 2003-03-21 08:03:25 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2003-03-21 08:03:25 +0000 |
| commit | 5a3ab2fc180056cb14eaeae0f571421be81e371b (patch) | |
| tree | af48122e19c238a39db145412a11b1b551d472e6 /nptl/libc-cancellation.c | |
| parent | 18627f615b80b51778a65cf588f2741ad5f9b0a7 (diff) | |
| download | glibc-5a3ab2fc180056cb14eaeae0f571421be81e371b.tar.gz glibc-5a3ab2fc180056cb14eaeae0f571421be81e371b.tar.xz glibc-5a3ab2fc180056cb14eaeae0f571421be81e371b.zip | |
Update.
2003-03-21 Ulrich Drepper <drepper@redhat.com> * cancellation.c: Adjust for new form of compare&exchange macros. * cleanup_defer.c: Likewise. * init.c: Likewise. * libc-cancellation.c: Likewise. * old_pthread_cond_broadcast.c: Likewise. * old_pthread_cond_signal.c: Likewise. * old_pthread_cond_timedwait.c: Likewise. * old_pthread_cond_wait.c: Likewise. * pthread_cancel.c: Likewise. * pthread_create.c: Likewise. * pthread_detach.c: Likewise. * pthread_join.c: Likewise. * pthread_key_delete.c: Likewise. * pthread_setcancelstate.c: Likewise. * pthread_setcanceltype.c: Likewise. * pthread_timedjoin.c: Likewise. * pthread_tryjoin.c: Likewise. * sysdeps/pthread/createthread.c: Likewise.
Diffstat (limited to 'nptl/libc-cancellation.c')
| -rw-r--r-- | nptl/libc-cancellation.c | 29 |
1 files changed, 14 insertions, 15 deletions
diff --git a/nptl/libc-cancellation.c b/nptl/libc-cancellation.c index d9ad94fa61..0d584fbb33 100644 --- a/nptl/libc-cancellation.c +++ b/nptl/libc-cancellation.c @@ -34,11 +34,12 @@ __libc_enable_asynccancel (void) { struct pthread *self = THREAD_SELF; int oldval; + int newval; - while (1) + do { oldval = THREAD_GETMEM (self, cancelhandling); - int newval = oldval | CANCELTYPE_BITMASK; + newval = oldval | CANCELTYPE_BITMASK; if (__builtin_expect ((oldval & CANCELED_BITMASK) != 0, 0)) { @@ -46,8 +47,8 @@ __libc_enable_asynccancel (void) if ((oldval & EXITING_BITMASK) != 0) break; - if (atomic_compare_and_exchange_acq (&self->cancelhandling, newval, - oldval) != 0) + if (atomic_compare_and_exchange_bool_acq (&self->cancelhandling, + newval, oldval)) /* Somebody else modified the word, try again. */ continue; @@ -60,11 +61,9 @@ __libc_enable_asynccancel (void) /* NOTREACHED */ } - - if (atomic_compare_and_exchange_acq (&self->cancelhandling, newval, - oldval) == 0) - break; } + while (atomic_compare_and_exchange_bool_acq (&self->cancelhandling, + newval, oldval)); return oldval; } @@ -80,19 +79,19 @@ __libc_disable_asynccancel (int oldtype) return; struct pthread *self = THREAD_SELF; + int oldval; + int newval; - while (1) + do { - int oldval = THREAD_GETMEM (self, cancelhandling); - int newval = oldval & ~CANCELTYPE_BITMASK; + oldval = THREAD_GETMEM (self, cancelhandling); + newval = oldval & ~CANCELTYPE_BITMASK; if (newval == oldval) break; - - if (atomic_compare_and_exchange_acq (&self->cancelhandling, newval, - oldval) == 0) - break; } + while (atomic_compare_and_exchange_bool_acq (&self->cancelhandling, newval, + oldval)); } #endif |