/*
 * MutexedClass.cpp
 *
 *  Created on: Feb 15, 2015
 *      Author: hovanes
 */

#include "MutexedClass.hh"

//! Declare global mutex and its attributes
pthread_mutex_t  	MutexedClass::mcClassMutex;
pthread_mutexattr_t MutexedClass::mcClassMtxAttr;

// Initialize global mutexes and the attributes
volatile static int dummyInt	= MutexedClass::initGlobalMutex();

MutexedClass::MutexedClass() {
	initMutex();
	return;
}

MutexedClass::~MutexedClass() {
	closeMutex();
	return;
}

// Mutex manipulation functions

//! Initialize global mutex
int MutexedClass::initGlobalMutex() {
  pthread_mutexattr_init( &mcClassMtxAttr );
  pthread_mutexattr_setpshared( &mcClassMtxAttr, PTHREAD_PROCESS_PRIVATE );
  pthread_mutex_init( &mcClassMutex, &mcClassMtxAttr );
  return 0;
}

//! Initialize mutex for individual objects
void MutexedClass::initMutex() {
  pthread_mutexattr_init( &mcMtxAttr );
  pthread_mutexattr_setpshared( &mcMtxAttr, PTHREAD_PROCESS_PRIVATE );
  pthread_mutex_init( &mcMutex, &mcMtxAttr );

  return;
}

//! Destroy mutex for individual objects
void MutexedClass::closeMutex() {
  pthread_mutex_destroy( &mcMutex );
  pthread_mutexattr_destroy( &mcMtxAttr );
  return;
}