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version 1.18, 2008/12/02 09:00:53
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version 1.22, 2012/10/22 11:18:18
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| //============================================================================== | //============================================================================== |
| // | // |
| // _get_stack_multiplier() |
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| // |
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| //============================================================================== |
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| static inline int _get_stack_multiplier() |
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| { |
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| #if defined(PEGASUS_OS_VMS) |
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| static int _multiplier = 0; |
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| static MutexType _multiplier_mutex = PEGASUS_MUTEX_INITIALIZER; |
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| // |
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| // This code uses a, 'hidden' (non-documented), VMS only, logical |
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| // name (environment variable), PEGASUS_VMS_THREAD_STACK_MULTIPLIER, |
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| // to allow in the field adjustment of the thread stack size. |
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| // |
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| // We only check for the logical name once to not have an |
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| // impact on performance. |
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| // |
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| // Note: This code may have problems in a multithreaded environment |
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| // with the setting of doneOnce to true. |
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| // |
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| // Current code in Cimserver and the clients do some serial thread |
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| // creations first so this is not a problem now. |
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| // |
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| if (_multiplier == 0) |
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| { |
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| mutex_lock(&_multiplier_mutex); |
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| if (_multiplier == 0) |
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| { |
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| const char *env = getenv("PEGASUS_VMS_THREAD_STACK_MULTIPLIER"); |
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| if (env) |
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| _multiplier = atoi(env); |
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| if (_multiplier == 0) |
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| _multiplier = 2; |
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| } |
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| mutex_unlock(&_multiplier_mutex); |
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| } |
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| return _multiplier; |
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| #elif defined(PEGASUS_PLATFORM_HPUX_PARISC_ACC) |
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| return 2; |
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| #elif defined(PEGASUS_OS_AIX) |
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| return 2; |
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| #else |
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| return 1; |
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| #endif |
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| } |
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| |
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| //============================================================================== |
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| // |
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| // PEGASUS_HAVE_PTHREADS | // PEGASUS_HAVE_PTHREADS |
| // | // |
| //============================================================================== | //============================================================================== |
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| // Initialize thread attributes: | // Initialize thread attributes: |
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| pthread_attr_t attr; | pthread_attr_t attr; |
| pthread_attr_init(&attr); |
int rc = pthread_attr_init(&attr); |
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if(rc != 0) |
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{ |
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return rc; |
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} |
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| // Detached: | // Detached: |
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| } | } |
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| // Stack size: | // Stack size: |
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rc = pthread_attr_setstacksize(&attr, PEGASUS_INITIAL_THREADSTACK_SIZE); |
| int multiplier = _get_stack_multiplier(); |
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| if (multiplier != 1) |
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| { |
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| size_t stacksize; |
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| if (pthread_attr_getstacksize(&attr, &stacksize) == 0) |
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| { |
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| int rc = pthread_attr_setstacksize(&attr, stacksize * multiplier); |
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| PEGASUS_ASSERT(rc == 0); | PEGASUS_ASSERT(rc == 0); |
| } |
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| } |
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| // Scheduling policy: | // Scheduling policy: |
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| // Create thread: | // Create thread: |
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| int rc = pthread_create(&thread.thread, &attr, start, arg); |
rc = pthread_create(&thread.thread, &attr, start, arg); |
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| if (rc != 0) | if (rc != 0) |
| { | { |
| thread = ThreadType(); | thread = ThreadType(); |
| return rc; |
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| } | } |
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| // Destroy attributes now. | // Destroy attributes now. |
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| // Return: | // Return: |
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| return 0; |
return rc; |
| } | } |
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| ThreadType Threads::self() | ThreadType Threads::self() |
Return to
Threads.cpp
CVS log
Up to [Pegasus] / pegasus / src / Pegasus / Common