30.11.2010 - initial commit

pimutex.h

@@ -0,0 +1,37 @@
+#ifndef PIMUTEX_H
+#define PIMUTEX_H
+
+#include <pthread.h>
+#include "piincludes.h"
+
+class PIMutex
+{
+public:
+	PIMutex() {
+		pthread_mutexattr_t attr;
+		pthread_mutexattr_init(&attr);
+		pthread_mutexattr_settype(&attr, PTHREAD_PROCESS_SHARED);
+		pthread_mutex_init(&mutex, &attr);
+		pthread_mutexattr_destroy(&attr);
+	}
+	~PIMutex() {pthread_mutex_destroy(&mutex);}
+	void lock() {pthread_mutex_lock(&mutex);}
+	void unlock() {pthread_mutex_unlock(&mutex);}
+	bool tryLock() {return (pthread_mutex_trylock(&mutex) == 0);}
+	
+private:
+	pthread_mutex_t mutex;
+	
+};
+
+class PIMutexLocker
+{
+public:
+	PIMutexLocker(PIMutex * m): mutex(m) {mutex->lock();}
+	PIMutexLocker(PIMutex & m): mutex(&m) {mutex->lock();}
+	~PIMutexLocker() {mutex->unlock();}
+private:
+	PIMutex * mutex;
+};
+
+#endif // PIMUTEX_H