version 1.29.4.6, 2003/03/26 14:40:57
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version 1.36.4.6, 2003/08/14 14:26:20
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PEGASUS_NAMESPACE_BEGIN | PEGASUS_NAMESPACE_BEGIN |
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void thread_data::default_delete(void * data) | void thread_data::default_delete(void * data) |
{ | { |
if( data != NULL) | if( data != NULL) |
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} | } |
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Boolean Thread::_signals_blocked = false; | Boolean Thread::_signals_blocked = false; |
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// l10n |
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// l10n |
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PEGASUS_THREAD_KEY_TYPE Thread::_platform_thread_key; |
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Boolean Thread::_key_initialized = false; |
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Boolean Thread::_key_error = false; |
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// for non-native implementations | // for non-native implementations |
#ifndef PEGASUS_THREAD_CLEANUP_NATIVE | #ifndef PEGASUS_THREAD_CLEANUP_NATIVE |
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#endif | #endif |
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// l10n start |
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Sint8 Thread::initializeKey() |
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{ |
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PEG_METHOD_ENTER(TRC_THREAD, "Thread::initializeKey"); |
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if (!Thread::_key_initialized) |
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{ |
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if (Thread::_key_error) |
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{ |
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Tracer::trace(TRC_THREAD, Tracer::LEVEL4, |
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"Thread: ERROR - thread key error"); |
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return -1; |
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} |
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if (pegasus_key_create(&Thread::_platform_thread_key) == 0) |
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{ |
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Tracer::trace(TRC_THREAD, Tracer::LEVEL4, |
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"Thread: able to create a thread key"); |
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Thread::_key_initialized = true; |
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} |
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else |
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{ |
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Tracer::trace(TRC_THREAD, Tracer::LEVEL4, |
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"Thread: ERROR - unable to create a thread key"); |
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Thread::_key_error = true; |
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return -1; |
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} |
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} |
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PEG_METHOD_EXIT(); |
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return 0; |
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} |
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Thread * Thread::getCurrent() |
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{ |
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PEG_METHOD_ENTER(TRC_THREAD, "Thread::getCurrent"); |
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if (Thread::initializeKey() != 0) |
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{ |
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return NULL; |
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} |
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PEG_METHOD_EXIT(); |
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return (Thread *)pegasus_get_thread_specific(_platform_thread_key); |
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} |
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void Thread::setCurrent(Thread * thrd) |
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{ |
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PEG_METHOD_ENTER(TRC_THREAD, "Thread::setCurrent"); |
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if (Thread::initializeKey() == 0) |
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{ |
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if (pegasus_set_thread_specific(Thread::_platform_thread_key, |
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(void *) thrd) == 0) |
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{ |
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Tracer::trace(TRC_THREAD, Tracer::LEVEL4, |
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"Successful set Thread * into thread specific storage"); |
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} |
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else |
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{ |
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Tracer::trace(TRC_THREAD, Tracer::LEVEL4, |
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"ERROR: got error setting Thread * into thread specific storage"); |
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} |
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} |
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PEG_METHOD_EXIT(); |
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} |
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AcceptLanguages * Thread::getLanguages() |
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{ |
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PEG_METHOD_ENTER(TRC_THREAD, "Thread::getLanguages"); |
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Thread * curThrd = Thread::getCurrent(); |
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if (curThrd == NULL) |
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return NULL; |
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AcceptLanguages * acceptLangs = |
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(AcceptLanguages *)curThrd->reference_tsd("acceptLanguages"); |
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curThrd->dereference_tsd(); |
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PEG_METHOD_EXIT(); |
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return acceptLangs; |
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} |
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void Thread::setLanguages(AcceptLanguages *langs) //l10n |
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{ |
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PEG_METHOD_ENTER(TRC_THREAD, "Thread::setLanguages"); |
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Thread * currentThrd = Thread::getCurrent(); |
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if (currentThrd != NULL) |
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{ |
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// deletes the old tsd and creates a new one |
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currentThrd->put_tsd("acceptLanguages", |
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thread_data::default_delete, |
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sizeof(AcceptLanguages *), |
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langs); |
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} |
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PEG_METHOD_EXIT(); |
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} |
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void Thread::clearLanguages() //l10n |
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{ |
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PEG_METHOD_ENTER(TRC_THREAD, "Thread::clearLanguages"); |
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Thread * currentThrd = Thread::getCurrent(); |
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if (currentThrd != NULL) |
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{ |
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// deletes the old tsd |
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currentThrd->delete_tsd("acceptLanguages"); |
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} |
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PEG_METHOD_EXIT(); |
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} |
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// l10n end |
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DQueue<ThreadPool> ThreadPool::_pools(true); | DQueue<ThreadPool> ThreadPool::_pools(true); |
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_link_pool(_init_thread()); | _link_pool(_init_thread()); |
} | } |
_pools.insert_last(this); | _pools.insert_last(this); |
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} | } |
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PEG_METHOD_EXIT(); | PEG_METHOD_EXIT(); |
throw NullPointer(); | throw NullPointer(); |
} | } |
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// l10n |
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// Set myself into thread specific storage |
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// This will allow code to get its own Thread |
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Thread::setCurrent(myself); |
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ThreadPool *pool = (ThreadPool *)myself->get_parm(); | ThreadPool *pool = (ThreadPool *)myself->get_parm(); |
if(pool == 0 ) | if(pool == 0 ) |
{ | { |
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{ | { |
gettimeofday(deadlock_timer, NULL); | gettimeofday(deadlock_timer, NULL); |
} | } |
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gettimeofday(deadlock_timer, NULL); | gettimeofday(deadlock_timer, NULL); |
if( blocking_sem != 0 ) | if( blocking_sem != 0 ) |
blocking_sem->signal(); | blocking_sem->signal(); |
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// first go thread the dead q and clean it up as much as possible | // first go thread the dead q and clean it up as much as possible |
while(_dead.count() > 0) | while(_dead.count() > 0) |
{ | { |
PEGASUS_STD(cout) << "ThreadPool:: removing and joining dead thread" << PEGASUS_STD(endl); |
Tracer::trace(TRC_THREAD, Tracer::LEVEL4, "ThreadPool:: removing and joining dead thread"); |
Thread *dead = _dead.remove_first(); | Thread *dead = _dead.remove_first(); |
if(dead == 0) | if(dead == 0) |
throw NullPointer(); | throw NullPointer(); |
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int i = 0; | int i = 0; |
AtomicInt needed(0); | AtomicInt needed(0); |
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#ifdef PEGASUS_DISABLE_KILLING_HUNG_THREADS |
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// This change prevents the thread pool from killing "hung" threads. |
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// The definition of a "hung" thread is one that has been on the run queue |
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// for longer than the time interval set when the thread pool was created. |
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// Cancelling "hung" threads has proven to be problematic. |
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// With this change the thread pool will not cancel "hung" threads. This |
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// may prevent a crash depending upon the state of the "hung" thread. In |
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// the case that the thread is actually hung, this change causes the |
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// thread resources not to be reclaimed. |
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// Idle threads, those that have not executed a routine for a time |
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// interval, continue to be destroyed. This is normal and should not |
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// cause any problems. |
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for( ; i < 1; i++) |
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#else |
for( ; i < 2; i++) | for( ; i < 2; i++) |
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#endif |
{ | { |
q = map[i]; | q = map[i]; |
if(q->count() > 0 ) | if(q->count() > 0 ) |
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else | else |
{ | { |
// deadlocked threads | // deadlocked threads |
PEGASUS_STD(cout) << "Killing a deadlocked thread" << PEGASUS_STD(endl); |
Tracer::trace(TRC_THREAD, Tracer::LEVEL4, "Killing a deadlocked thread"); |
th->cancel(); | th->cancel(); |
delete th; | delete th; |
} | } |
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struct timeval now, finish, remaining; | struct timeval now, finish, remaining; |
Uint32 usec; | Uint32 usec; |
gettimeofday(&now, NULL); |
pegasus_gettimeofday(&now); |
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/* remove valgrind error */ |
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pegasus_gettimeofday(&remaining); |
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finish.tv_sec = start->tv_sec + interval->tv_sec; | finish.tv_sec = start->tv_sec + interval->tv_sec; |
usec = start->tv_usec + interval->tv_usec; | usec = start->tv_usec + interval->tv_usec; |
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th->put_tsd("deadlock timer", thread_data::default_delete, sizeof(struct timeval), (void *)dldt); | th->put_tsd("deadlock timer", thread_data::default_delete, sizeof(struct timeval), (void *)dldt); |
// thread will enter _loop(void *) and sleep on sleep_sem until we signal it | // thread will enter _loop(void *) and sleep on sleep_sem until we signal it |
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th->run(); | th->run(); |
_current_threads++; | _current_threads++; |
pegasus_yield(); | pegasus_yield(); |
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} | } |
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PEGASUS_NAMESPACE_END | PEGASUS_NAMESPACE_END |
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