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#include "mutex.h"
#include <hugin.hpp>
#ifdef WIN32
#include <windows.h>
#else
#include <pthread.h>
#include <errno.h>
#endif
struct mutex_private_t {
#ifdef WIN32
HANDLE mutex;
#else
pthread_mutex_t mutex;
#endif
};
Mutex::Mutex()
{
prv = new struct mutex_private_t();
#ifdef WIN32
prv->mutex = CreateMutex(nullptr,
FALSE,
nullptr);
#else
pthread_mutex_init (&prv->mutex, nullptr);
#endif
}
Mutex::~Mutex()
{
#ifdef WIN32
CloseHandle(prv->mutex);
#else
pthread_mutex_destroy(&prv->mutex);
#endif
if(prv)
{
delete prv;
}
}
bool Mutex::try_lock()
{
#ifdef WIN32
DEBUG(mutex, "%s\n", __PRETTY_FUNCTION__);
DWORD result = WaitForSingleObject(prv->mutex, 0);
DEBUG(mutex, "WAIT_OBJECT_0: %lu, WAIT_TIMEOUT: %lu, result: %lu\n",
WAIT_OBJECT_0, WAIT_TIMEOUT, result);
return result != WAIT_TIMEOUT;
#else
return pthread_mutex_trylock(&prv->mutex) != EBUSY;
#endif
}
void Mutex::lock()
{
#ifdef WIN32
WaitForSingleObject(prv->mutex,
INFINITE);
#else
pthread_mutex_lock(&prv->mutex);
#endif
}
void Mutex::unlock()
{
#ifdef WIN32
ReleaseMutex(prv->mutex);
#else
pthread_mutex_unlock(&prv->mutex);
#endif
}
MutexAutolock::MutexAutolock(Mutex &m)
: mutex(m)
{
mutex.lock();
}
MutexAutolock::~MutexAutolock()
{
mutex.unlock();
}
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