/*******************************************************************************
* BMutex.h BMutex Classes
* T.Barnaby, BEAM Ltd, 1/11/02
* Copyright (c) 2012 All Right Reserved, Beam Ltd, http://www.beam.ltd.uk
*******************************************************************************
*/
#ifndef BMUTEX_H
#define BMUTEX_H 1
#include <pthread.h>
/// Mutex class
class BMutex {
public:
enum Type { Normal, Recursive };
BMutex(Type type = Normal);
BMutex(const BMutex& mutex);
~BMutex();
int lock(); ///< Set lock, wait as necessary
int timedLock(int timeoutUs); ///< Set lock, wait as necessary but timeout after given time
int unlock(); ///< Unlock the lock
int tryLock(); ///< Test the lock
BMutex& operator=(const BMutex& mutex);
private:
pthread_mutex_t omutex;
};
class BMutexLock {
public:
BMutexLock(BMutex& lock, int doLock = 0) : olock(lock) { if(doLock) olock.lock(); }
~BMutexLock() { olock.unlock(); }
int lock() { return olock.lock(); }
int unlock() { return olock.unlock(); }
private:
BMutex& olock;
};
#endif