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initial check-in, version 0.5.0

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This commit is contained in:
Rich Felker
2011-02-12 00:22:29 -05:00
commit 0b44a0315b
1021 changed files with 45711 additions and 0 deletions
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13
src/thread/pthread_rwlock_trywrlock.c Normal file
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#include "pthread_impl.h"
int pthread_rwlock_trywrlock(pthread_rwlock_t *rw)
{
if (a_xchg(&rw->__wrlock, 1))
return EAGAIN;
if (rw->__readers) {
a_store(&rw->__wrlock, 0);
return EAGAIN;
}
rw->__owner = pthread_self()->tid;
return 0;
}