96 lines
1.8 KiB
C++
96 lines
1.8 KiB
C++
/*
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* namedLockPattern.cpp
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*/
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#include <pv/referenceCountingLock.h>
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namespace epics { namespace pvAccess {
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using namespace epics::pvData;
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ReferenceCountingLock::ReferenceCountingLock(): _references(1)
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{
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/* pthread_mutexattr_t mutexAttribute;
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int32 retval = pthread_mutexattr_init(&mutexAttribute);
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if(retval != 0)
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{
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//string errMsg = "Error: pthread_mutexattr_init failed: " + string(strerror(retval));
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assert(false);
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}
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retval = pthread_mutexattr_settype(&mutexAttribute, PTHREAD_MUTEX_RECURSIVE);
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if(retval == 0)
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{
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retval = pthread_mutex_init(_mutex, &mutexAttribute);
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if(retval != 0)
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{
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//string errMsg = "Error: pthread_mutex_init failed: " + string(strerror(retval));
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assert(false);
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}
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}
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else
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{
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//string errMsg = "Error: pthread_mutexattr_settype failed: " + string(strerror(retval));
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assert(false);
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}
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pthread_mutexattr_destroy(&mutexAttribute);*/
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}
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ReferenceCountingLock::~ReferenceCountingLock()
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{
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// pthread_mutex_destroy(_mutex);
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}
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bool ReferenceCountingLock::acquire(int64 msecs)
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{
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_mutex.lock();
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return true;
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/* struct timespec deltatime;
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if(msecs > 0)
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{
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deltatime.tv_sec = msecs / 1000;
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deltatime.tv_nsec = (msecs % 1000) * 1000;
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}
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else
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{
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deltatime.tv_sec = 0;
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deltatime.tv_nsec = 0;
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}
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int32 retval = pthread_mutex_timedlock(_mutex, &deltatime);
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if(retval == 0)
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{
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return true;
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}
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return false;
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*/
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}
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void ReferenceCountingLock::release()
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{
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_mutex.unlock();
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/* int retval = pthread_mutex_unlock(_mutex);
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if(retval != 0)
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{
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//string errMsg = "Error: pthread_mutex_unlock failed: " + string(strerror(retval));
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//TODO do something?
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}*/
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}
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int ReferenceCountingLock::increment()
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{
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Lock guard(_countMutex);
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++_references;
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return _references;
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}
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int ReferenceCountingLock::decrement()
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{
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Lock guard(_countMutex);
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--_references;
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return _references;
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}
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}}
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