/*

     File: CABundleLocker.cpp 

 Abstract:  CABundleLocker.h  

  Version: 1.0 

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 MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION 

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*/

#include "CABundleLocker.h"

#include <pthread.h>

/*

some bundle operations are not thread safe, notably CFCopyLocalizedStringFromTableInBundle

*/

static pthread_mutex_t sCABundleLocker = PTHREAD_MUTEX_INITIALIZER;

#define RECURSIVE_LOCK 0

#if RECURSIVE_LOCK

static pthread_once_t sOnce = PTHREAD_ONCE_INIT;

static void InitCABundleLocker()

{

    // have to do this because OS X lacks PTHREAD_MUTEX_RECURSIVE_INITIALIZER_NP

    pthread_mutexattr_t attr;

    pthread_mutexattr_init(&attr);

    pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);

    pthread_mutex_init(&sCABundleLocker, &attr);

    pthread_mutexattr_destroy(&attr);

}

#endif

CABundleLocker::CABundleLocker()

{

#if RECURSIVE_LOCK

    pthread_once(&sOnce, InitCABundleLocker);

#endif

    pthread_mutex_lock(&sCABundleLocker);

}

CABundleLocker::~CABundleLocker()

{

    pthread_mutex_unlock(&sCABundleLocker);

}