Es++ Class: Mutex

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Source code

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 *  Mutex.h
 *
 *****************************************************************************/

// 2016/03/29 Updated.

#pragma once

#include <es++/Object.h>
#include <es++/Exception.h>
#include <es++/CharString.h>
#include <pthread.h>

namespace Es {

class Mutex :public Object {
private:
  pthread_mutex_t mutex;

public:
  /**
   */
  Mutex(const  pthread_mutexattr_t *mutexAttr=NULL)
   :mutex((pthread_mutex_t)PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP)
  {
    if (mutexAttr) {
      int rc = pthread_mutex_init(&mutex,
                       mutexAttr);
      if (rc != 0) {
        throw Es::IException("Mutex#Mutex,1,Failed to pthread_mutex_init");  
      }
    }
  }

  

public:
  /**
   */
  ~Mutex() 
  {
    pthread_mutex_destroy(&mutex);  //2016/03/29
  }

public:
  int  lock() 
  {
    return pthread_mutex_lock(&mutex);    
  }

public:
  /**
   */
  int  unlock() 
  {
    return pthread_mutex_unlock(&mutex);    
  }

public:
  int tryLock() 
  {
    return pthread_mutex_trylock(&mutex); 
  }
  
};

}


Last modified: 27 July 2017

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