src/dyldLock.cpp

   1 /* -*- mode: C++; c-basic-offset: 4; tab-width: 4 -*-
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  24
  25 #include <pthread.h>
  26
  27 #include "dyldLock.h"
  28
  29
  30
  31 static pthread_mutex_t  sGlobalMutex;
  32
  33
  34 //
  35 // This initializer can go away once the following is available:
  36 //     <rdar://problem/4927311> implement PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP
  37 //
  38 void dyldGlobalLockInitialize()
  39 {
  40         pthread_mutexattr_t recursiveMutexAttr;
  41         pthread_mutexattr_init(&recursiveMutexAttr);
  42         pthread_mutexattr_settype(&recursiveMutexAttr, PTHREAD_MUTEX_RECURSIVE);
  43         pthread_mutex_init(&sGlobalMutex, &recursiveMutexAttr);
  44 }
  45
  46
  47 LockHelper::LockHelper()
  48 {
  49         pthread_mutex_lock(&sGlobalMutex);
  50 }
  51
  52 LockHelper::~LockHelper()
  53 {
  54         pthread_mutex_unlock(&sGlobalMutex);
  55 }
  56
  57 void dyldGlobalLockAcquire()
  58 {
  59         pthread_mutex_lock(&sGlobalMutex);
  60 }
  61
  62 void dyldGlobalLockRelease()
  63 {
  64         pthread_mutex_unlock(&sGlobalMutex);
  65 }
  66
  67