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This patch adds support for pthread_rwlocks. Attached are testcases from the pthreads-win32 project. The rwlock implementation follows the opengroup spec that it will prefer writers among readers and check for deadlock conditions. 2003-02-27 Thomas Pfaff <tpfaff at gmx dot net> * cygwin.din: Add pthread_rwlock_destroy, pthread_rwlock_init, pthread_rwlock_rdlock, pthread_rwlock_tryrdlock, pthread_rwlock_wrlock, pthread_rwlock_trywrlock, pthread_rwlock_unlock, pthread_rwlockattr_init, pthread_rwlockattr_getpshared, pthread_rwlockattr_setpshared, and pthread_rwlockattr_destroy. * include/cygwin/version.h: Bump API minor number. * include/pthread.h (PTHREAD_RWLOCK_INITIALIZER): Define a reasonable value. Add prototypes for pthread_rwlock_destroy, pthread_rwlock_init, pthread_rwlock_rdlock, pthread_rwlock_tryrdlock, pthread_rwlock_wrlock, pthread_rwlock_trywrlock, pthread_rwlock_unlock, pthread_rwlockattr_init, pthread_rwlockattr_getpshared, pthread_rwlockattr_setpshared, and pthread_rwlockattr_destroy. * thread.h (PTHREAD_ONCE_MAGIC): Remove superflous semicolon. (PTHREAD_RWLOCK_MAGIC): New define. (PTHREAD_RWLOCKATTR_MAGIC): Ditto. (pthread_rwlockattr): New class. (pthread_rwlock): Ditto. (MTinterface::rwlocks): New member. (MTinterface::MTinterface): Initialize rwlocks. Add prototypes for __pthread_rwlock_destroy, __pthread_rwlock_wrlock, __pthread_rwlock_trywrlock, __pthread_rwlock_unlock, __pthread_rwlockattr_init, __pthread_rwlockattr_getpshared, __pthread_rwlockattr_setpshared, and __pthread_rwlockattr_destroy. * thread.cc (MTinterface::Init): Initialize rwlock internal mutex. (MTinterface::fixup_after_fork): Fixup rwlocks after fork. (pthread_rwlockattr::isGoodObject): Implement. (pthread_rwlockattr::pthread_rwlockattr): Ditto. (pthread_rwlockattr::~pthread_rwlockattr): Ditto. (pthread_rwlock::initMutex): Ditto. (pthread_rwlock::pthread_rwlock): Ditto. (pthread_rwlock::~pthread_rwlock): Ditto. (pthread_rwlock::RdLock): Ditto. (pthread_rwlock::TryRdLock): Ditto. (pthread_rwlock::WrLock): Ditto. (pthread_rwlock::TryWrLock): Ditto. (pthread_rwlock::UnLock): Ditto. (pthread_rwlock::addReader): Ditto. (pthread_rwlock::removeReader): Ditto. (pthread_rwlock::lookupReader): Ditto. (pthread_rwlock::RdLockCleanup): Ditto. (pthread_rwlock::WrLockCleanup): Ditto. (pthread_rwlock::fixup_after_fork): Ditto. (pthread_rwlock::isGoodObject): Ditto. (pthread_rwlock::isGoodInitializer): Ditto. (pthread_rwlock::isGoodInitializerOrObject): Ditto. (pthread_rwlock::isGoodInitializerOrBadObject): Ditto. (__pthread_rwlock_destroy): Ditto. (pthread_rwlock::init): Ditto. (__pthread_rwlock_rdlock): Ditto. (__pthread_rwlock_tryrdlock): Ditto. (__pthread_rwlock_wrlock): Ditto. (__pthread_rwlock_trywrlock): Ditto. (__pthread_rwlock_unlock): Ditto. (__pthread_rwlockattr_init): Ditto. (__pthread_rwlockattr_getpshared): Ditto. (__pthread_rwlockattr_setpshared): Ditto. (__pthread_rwlockattr_destroy): Ditto. * pthread.cc (pthread_rwlock_destroy): Implement: (pthread_rwlock_init): Ditto. (pthread_rwlock_rdlock): Ditto. (pthread_rwlock_tryrdlock): Ditto. (pthread_rwlock_wrlock): Ditto. (pthread_rwlock_trywrlock): Ditto. (pthread_rwlock_unlock): Ditto. (pthread_rwlockattr_init): Ditto. (pthread_rwlockattr_getpshared): Ditto. (pthread_rwlockattr_getpshared): Ditto. (pthread_rwlockattr_destroy): Ditto.
Attachment:
rwlock.tar.gz
Description: GNU Zip compressed data
Attachment:
pthread_rwlock.patch
Description: Text document
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