version 1.33, 2002/03/11 14:58:54
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version 1.68, 2003/04/03 20:54:39
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//%////-*-c++-*-//////////////////////////////////////////////////////////////// | //%////-*-c++-*-//////////////////////////////////////////////////////////////// |
// | // |
// Copyright (c) 2000, 2001 The Open group, BMC Software, Tivoli Systems, IBM |
// Copyright (c) 2000, 2001, 2002 BMC Software, Hewlett-Packard Company, IBM, |
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// The Open Group, Tivoli Systems |
// | // |
// Permission is hereby granted, free of charge, to any person obtaining a copy | // Permission is hereby granted, free of charge, to any person obtaining a copy |
// of this software and associated documentation files (the "Software"), to | // of this software and associated documentation files (the "Software"), to |
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cimom *MessageQueueService::_meta_dispatcher = 0; | cimom *MessageQueueService::_meta_dispatcher = 0; |
AtomicInt MessageQueueService::_service_count = 0; | AtomicInt MessageQueueService::_service_count = 0; |
AtomicInt MessageQueueService::_xid(1); | AtomicInt MessageQueueService::_xid(1); |
Mutex MessageQueueService::_meta_dispatcher_mutex = Mutex(); |
Mutex MessageQueueService::_meta_dispatcher_mutex; |
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static struct timeval create_time = {0, 1}; |
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static struct timeval destroy_time = {15, 0}; |
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static struct timeval deadlock_time = {0, 0}; |
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ThreadPool *MessageQueueService::_thread_pool = 0; |
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DQueue<MessageQueueService> MessageQueueService::_polling_list(true); |
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Thread* MessageQueueService::_polling_thread = 0; |
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int MessageQueueService::kill_idle_threads(void) |
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{ |
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static struct timeval now, last; |
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gettimeofday(&now, NULL); |
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int dead_threads = 0; |
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if( now.tv_sec - last.tv_sec > 0 ) |
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{ |
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gettimeofday(&last, NULL); |
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try |
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{ |
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dead_threads = _thread_pool->kill_dead_threads(); |
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} |
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catch(IPCException& ) |
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{ |
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} |
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} |
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return dead_threads; |
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} |
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void MessageQueueService::force_shutdown(void) |
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{ |
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PEGASUS_STD(cout) << "Forcing shutdown of CIMOM Message Router" << PEGASUS_STD(endl); |
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MessageQueueService::_stop_polling = 1; |
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MessageQueueService *svc; |
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_polling_list.lock(); |
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svc = _polling_list.next(0); |
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while(svc != 0) |
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{ |
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PEGASUS_STD(cout) << "Stopping " << svc->getQueueName() << PEGASUS_STD(endl); |
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_polling_sem.signal(); |
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svc->_shutdown_incoming_queue(); |
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_polling_sem.signal(); |
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svc = _polling_list.next(svc); |
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} |
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_polling_list.unlock(); |
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} |
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PEGASUS_THREAD_RETURN PEGASUS_THREAD_CDECL MessageQueueService::polling_routine(void *parm) |
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{ |
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Thread *myself = reinterpret_cast<Thread *>(parm); |
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DQueue<MessageQueueService> *list = reinterpret_cast<DQueue<MessageQueueService> *>(myself->get_parm()); |
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while ( _stop_polling.value() == 0 ) |
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{ |
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try |
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{ |
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_polling_sem.wait(); |
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} |
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catch (WaitFailed) |
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{ |
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myself->exit_self( (PEGASUS_THREAD_RETURN) 1 ); |
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} |
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if(_stop_polling.value() != 0 ) |
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{ |
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break; |
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} |
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list->lock(); |
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MessageQueueService *service = list->next(0); |
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while(service != NULL) |
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{ |
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if(service->_incoming.count() > 0 ) |
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{ |
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_thread_pool->allocate_and_awaken(service, _req_proc); |
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// service->_req_proc(service); |
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} |
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service = list->next(service); |
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} |
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list->unlock(); |
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} |
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myself->exit_self( (PEGASUS_THREAD_RETURN) 1 ); |
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return(0); |
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} |
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Semaphore MessageQueueService::_polling_sem(0); |
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AtomicInt MessageQueueService::_stop_polling(0); |
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MessageQueueService::MessageQueueService(const char *name, | MessageQueueService::MessageQueueService(const char *name, |
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_mask(mask), | _mask(mask), |
_die(0), | _die(0), |
_pending(true), |
_incoming(true, 0), |
_incoming(true, 1000), |
_callback(true), |
_incoming_queue_shutdown(0), | _incoming_queue_shutdown(0), |
_req_thread(_req_proc, this, false) |
_callback_ready(0), |
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_req_thread(_req_proc, this, false), |
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_callback_thread(_callback_proc, this, false) |
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{ | { |
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_capabilities = (capabilities | module_capabilities::async); | _capabilities = (capabilities | module_capabilities::async); |
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_default_op_timeout.tv_sec = 30; | _default_op_timeout.tv_sec = 30; |
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if (_meta_dispatcher == NULL ) | if (_meta_dispatcher == NULL ) |
{ | { |
_meta_dispatcher_mutex.unlock(); | _meta_dispatcher_mutex.unlock(); |
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throw NullPointer(); | throw NullPointer(); |
} | } |
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_thread_pool = new ThreadPool(0, "MessageQueueService", 0, 0, |
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create_time, destroy_time, deadlock_time); |
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_polling_thread = new Thread(polling_routine, |
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reinterpret_cast<void *>(&_polling_list), |
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false); |
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_polling_thread->run(); |
} | } |
_service_count++; | _service_count++; |
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if( false == register_service(name, _capabilities, _mask) ) | if( false == register_service(name, _capabilities, _mask) ) |
{ | { |
_meta_dispatcher_mutex.unlock(); | _meta_dispatcher_mutex.unlock(); |
throw BindFailed("MessageQueueService Base Unable to register with Meta Dispatcher"); |
throw BindFailedException("MessageQueueService Base Unable to register with Meta Dispatcher"); |
} | } |
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_polling_list.insert_last(this); |
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_meta_dispatcher_mutex.unlock(); | _meta_dispatcher_mutex.unlock(); |
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// _callback_thread.run(); |
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_req_thread.run(); |
// _req_thread.run(); |
} | } |
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if (_incoming_queue_shutdown.value() == 0 ) | if (_incoming_queue_shutdown.value() == 0 ) |
{ | { |
_shutdown_incoming_queue(); | _shutdown_incoming_queue(); |
_req_thread.join(); |
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} | } |
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_callback_ready.signal(); |
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// _callback_thread.join(); |
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_meta_dispatcher_mutex.lock(pegasus_thread_self()); | _meta_dispatcher_mutex.lock(pegasus_thread_self()); |
_service_count--; | _service_count--; |
if (_service_count.value() == 0 ) | if (_service_count.value() == 0 ) |
{ | { |
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_stop_polling++; |
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_polling_sem.signal(); |
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_polling_thread->join(); |
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delete _polling_thread; |
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_polling_thread = 0; |
_meta_dispatcher->_shutdown_routed_queue(); | _meta_dispatcher->_shutdown_routed_queue(); |
delete _meta_dispatcher; | delete _meta_dispatcher; |
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_meta_dispatcher = 0; |
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delete _thread_pool; |
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_thread_pool = 0; |
} | } |
_meta_dispatcher_mutex.unlock(); | _meta_dispatcher_mutex.unlock(); |
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_polling_list.remove(this); |
} | } |
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void MessageQueueService::_shutdown_incoming_queue(void) | void MessageQueueService::_shutdown_incoming_queue(void) |
{ | { |
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if (_incoming_queue_shutdown.value() > 0 ) | if (_incoming_queue_shutdown.value() > 0 ) |
return ; | return ; |
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AsyncIoctl *msg = new AsyncIoctl(get_next_xid(), | AsyncIoctl *msg = new AsyncIoctl(get_next_xid(), |
0, | 0, |
_queueId, | _queueId, |
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0); | 0); |
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msg->op = get_op(); | msg->op = get_op(); |
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msg->op->_flags |= ASYNC_OPFLAGS_FIRE_AND_FORGET; |
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msg->op->_flags &= ~(ASYNC_OPFLAGS_CALLBACK | ASYNC_OPFLAGS_SAFE_CALLBACK |
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| ASYNC_OPFLAGS_SIMPLE_STATUS); |
msg->op->_state &= ~ASYNC_OPSTATE_COMPLETE; | msg->op->_state &= ~ASYNC_OPSTATE_COMPLETE; |
msg->op->_flags &= ~ASYNC_OPFLAGS_CALLBACK; |
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msg->op->_op_dest = this; | msg->op->_op_dest = this; |
msg->op->_request.insert_first(msg); | msg->op->_request.insert_first(msg); |
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_incoming.insert_last_wait(msg->op); | _incoming.insert_last_wait(msg->op); |
msg->op->_client_sem.wait(); |
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msg->op->lock(); |
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AsyncReply * reply = static_cast<AsyncReply *>(msg->op->_response.remove_first()); |
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reply->op = 0; |
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msg->op->unlock(); |
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delete reply; |
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msg->op->_request.remove(msg); |
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msg->op->_state |= ASYNC_OPSTATE_RELEASED; |
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return_op(msg->op); |
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msg->op = 0; |
// _req_thread.join(); |
delete msg; |
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_req_thread.join(); |
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} | } |
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} | } |
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PEGASUS_THREAD_RETURN PEGASUS_THREAD_CDECL MessageQueueService::_callback_proc(void *parm) |
PEGASUS_THREAD_RETURN PEGASUS_THREAD_CDECL MessageQueueService::_req_proc(void * parm) |
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{ | { |
Thread *myself = reinterpret_cast<Thread *>(parm); | Thread *myself = reinterpret_cast<Thread *>(parm); |
MessageQueueService *service = reinterpret_cast<MessageQueueService *>(myself->get_parm()); | MessageQueueService *service = reinterpret_cast<MessageQueueService *>(myself->get_parm()); |
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AsyncOpNode *operation = 0; |
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while ( service->_die.value() == 0 ) |
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{ |
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service->_callback_ready.wait(); |
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service->_callback.lock(); |
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operation = service->_callback.next(0); |
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while( operation != NULL) |
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{ |
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if( ASYNC_OPSTATE_COMPLETE & operation->read_state()) |
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{ |
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operation = service->_callback.remove_no_lock(operation); |
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PEGASUS_ASSERT(operation != NULL); |
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operation->_thread_ptr = myself; |
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operation->_service_ptr = service; |
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service->_handle_async_callback(operation); |
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break; |
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} |
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operation = service->_callback.next(operation); |
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} |
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service->_callback.unlock(); |
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} |
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myself->exit_self( (PEGASUS_THREAD_RETURN) 1 ); |
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return(0); |
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} |
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PEGASUS_THREAD_RETURN PEGASUS_THREAD_CDECL MessageQueueService::_req_proc(void * parm) |
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{ |
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MessageQueueService *service = reinterpret_cast<MessageQueueService *>(parm); |
// pull messages off the incoming queue and dispatch them. then | // pull messages off the incoming queue and dispatch them. then |
// check pending messages that are non-blocking | // check pending messages that are non-blocking |
AsyncOpNode *operation = 0; | AsyncOpNode *operation = 0; |
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while ( service->_die.value() == 0 ) |
if ( service->_die.value() == 0 ) |
{ | { |
try | try |
{ | { |
operation = service->_incoming.remove_first_wait(); |
operation = service->_incoming.remove_first(); |
} | } |
catch(ListClosed & ) | catch(ListClosed & ) |
{ | { |
break; |
operation = 0; |
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return(0); |
} | } |
if( operation ) | if( operation ) |
{ | { |
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operation->_service_ptr = service; |
service->_handle_incoming_operation(operation, myself, service); |
service->_handle_incoming_operation(operation); |
} | } |
} | } |
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myself->exit_self( (PEGASUS_THREAD_RETURN) 1 ); |
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return(0); | return(0); |
} | } |
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Uint32 MessageQueueService::get_pending_callback_count(void) |
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{ |
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return _callback.count(); |
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} |
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void MessageQueueService::_sendwait_callback(AsyncOpNode *op, | void MessageQueueService::_sendwait_callback(AsyncOpNode *op, |
MessageQueue *q, | MessageQueue *q, |
void *parm) | void *parm) |
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// including op, op->_callback_node, and op->_callback_ptr | // including op, op->_callback_node, and op->_callback_ptr |
void MessageQueueService::_handle_async_callback(AsyncOpNode *op) | void MessageQueueService::_handle_async_callback(AsyncOpNode *op) |
{ | { |
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if( op->_flags & ASYNC_OPFLAGS_SAFE_CALLBACK ) |
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{ |
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Message *msg = op->get_request(); |
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if( msg && ( msg->getMask() & message_mask::ha_async)) |
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{ |
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if(msg->getType() == async_messages::ASYNC_LEGACY_OP_START ) |
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{ |
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AsyncLegacyOperationStart *wrapper = |
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static_cast<AsyncLegacyOperationStart *>(msg); |
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msg = wrapper->get_action(); |
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delete wrapper; |
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} |
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else if (msg->getType() == async_messages::ASYNC_MODULE_OP_START) |
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{ |
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AsyncModuleOperationStart *wrapper = |
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static_cast<AsyncModuleOperationStart *>(msg); |
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msg = wrapper->get_action(); |
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delete wrapper; |
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} |
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else if (msg->getType() == async_messages::ASYNC_OP_START) |
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{ |
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AsyncOperationStart *wrapper = |
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static_cast<AsyncOperationStart *>(msg); |
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msg = wrapper->get_action(); |
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delete wrapper; |
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} |
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delete msg; |
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} |
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msg = op->get_response(); |
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if( msg && ( msg->getMask() & message_mask::ha_async)) |
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{ |
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if(msg->getType() == async_messages::ASYNC_LEGACY_OP_RESULT ) |
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{ |
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AsyncLegacyOperationResult *wrapper = |
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static_cast<AsyncLegacyOperationResult *>(msg); |
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msg = wrapper->get_result(); |
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delete wrapper; |
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} |
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else if (msg->getType() == async_messages::ASYNC_MODULE_OP_RESULT) |
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{ |
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AsyncModuleOperationResult *wrapper = |
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static_cast<AsyncModuleOperationResult *>(msg); |
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msg = wrapper->get_result(); |
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delete wrapper; |
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} |
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} |
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void (*callback)(Message *, void *, void *) = op->__async_callback; |
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void *handle = op->_callback_handle; |
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void *parm = op->_callback_parameter; |
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op->release(); |
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return_op(op); |
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callback(msg, handle, parm); |
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} |
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else if( op->_flags & ASYNC_OPFLAGS_CALLBACK ) |
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{ |
// note that _callback_node may be different from op | // note that _callback_node may be different from op |
// op->_callback_response_q is a "this" pointer we can use for | // op->_callback_response_q is a "this" pointer we can use for |
// static callback methods | // static callback methods |
op->_async_callback(op->_callback_node, op->_callback_response_q, op->_callback_ptr); | op->_async_callback(op->_callback_node, op->_callback_response_q, op->_callback_ptr); |
} | } |
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} |
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void MessageQueueService::_handle_incoming_operation(AsyncOpNode *operation, |
void MessageQueueService::_handle_incoming_operation(AsyncOpNode *operation) |
Thread *thread, |
// Thread *thread, |
MessageQueue *queue) |
// MessageQueue *queue) |
{ | { |
if ( operation != 0 ) | if ( operation != 0 ) |
{ | { |
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rq = operation->_request.remove_first() ; | rq = operation->_request.remove_first() ; |
operation->unlock(); | operation->unlock(); |
// delete the op node | // delete the op node |
delete operation; |
operation->release(); |
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return_op( operation); |
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handleEnqueue(rq); | handleEnqueue(rq); |
return; | return; |
} | } |
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if ( operation->_flags & ASYNC_OPFLAGS_CALLBACK && |
if ( (operation->_flags & ASYNC_OPFLAGS_CALLBACK || |
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operation->_flags & ASYNC_OPFLAGS_SAFE_CALLBACK) && |
(operation->_state & ASYNC_OPSTATE_COMPLETE)) | (operation->_state & ASYNC_OPSTATE_COMPLETE)) |
{ | { |
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operation->unlock(); | operation->unlock(); |
_handle_async_callback(operation); | _handle_async_callback(operation); |
} | } |
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// ATTN: optimization | // ATTN: optimization |
// << Wed Mar 6 15:00:39 2002 mdd >> | // << Wed Mar 6 15:00:39 2002 mdd >> |
// put thread and queue into the asyncopnode structure. | // put thread and queue into the asyncopnode structure. |
(static_cast<AsyncMessage *>(rq))->_myself = thread; |
// (static_cast<AsyncMessage *>(rq))->_myself = operation->_thread_ptr; |
(static_cast<AsyncMessage *>(rq))->_service = queue; |
// (static_cast<AsyncMessage *>(rq))->_service = operation->_service_ptr; |
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// done << Tue Mar 12 14:49:07 2002 mdd >> |
operation->unlock(); | operation->unlock(); |
_handle_async_request(static_cast<AsyncRequest *>(rq)); | _handle_async_request(static_cast<AsyncRequest *>(rq)); |
} | } |
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Message* response) | Message* response) |
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{ | { |
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PEG_METHOD_ENTER(TRC_MESSAGEQUEUESERVICE, |
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"MessageQueueService::_enqueueResponse"); |
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if( request->getMask() & message_mask::ha_async) | if( request->getMask() & message_mask::ha_async) |
{ | { |
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_completeAsyncResponse(static_cast<AsyncRequest *>(request), | _completeAsyncResponse(static_cast<AsyncRequest *>(request), |
static_cast<AsyncReply *>(response), | static_cast<AsyncReply *>(response), |
ASYNC_OPSTATE_COMPLETE, 0 ); | ASYNC_OPSTATE_COMPLETE, 0 ); |
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PEG_METHOD_EXIT(); |
return true; | return true; |
} | } |
} | } |
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AsyncRequest *async = static_cast<AsyncRequest *>(request->_async); | AsyncRequest *async = static_cast<AsyncRequest *>(request->_async); |
AsyncOpNode *op = async->op; | AsyncOpNode *op = async->op; |
request->_async = 0; | request->_async = 0; |
// this request is probably going to be deleted !! |
// the legacy request is going to be deleted by its handler |
// remove it from the op node | // remove it from the op node |
op->_request.remove(request); |
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static_cast<AsyncLegacyOperationStart *>(async)->get_action(); |
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AsyncLegacyOperationResult *async_result = | AsyncLegacyOperationResult *async_result = |
new AsyncLegacyOperationResult( | new AsyncLegacyOperationResult( |
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async_result, | async_result, |
ASYNC_OPSTATE_COMPLETE, | ASYNC_OPSTATE_COMPLETE, |
0); | 0); |
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PEG_METHOD_EXIT(); |
return true; | return true; |
} | } |
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// ensure that the destination queue is in response->dest | // ensure that the destination queue is in response->dest |
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PEG_METHOD_EXIT(); |
return SendForget(response); | return SendForget(response); |
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} | } |
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Uint32 state, | Uint32 state, |
Uint32 flag) | Uint32 flag) |
{ | { |
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PEG_METHOD_ENTER(TRC_MESSAGEQUEUESERVICE, |
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"MessageQueueService::_completeAsyncResponse"); |
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cimom::_completeAsyncResponse(request, reply, state, flag); | cimom::_completeAsyncResponse(request, reply, state, flag); |
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PEG_METHOD_EXIT(); |
} | } |
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_die.value() == 0 ) | _die.value() == 0 ) |
{ | { |
_incoming.insert_last_wait(op); | _incoming.insert_last_wait(op); |
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_polling_sem.signal(); |
return true; | return true; |
} | } |
// else | // else |
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case AsyncIoctl::IO_CLOSE: | case AsyncIoctl::IO_CLOSE: |
{ | { |
// save my bearings | // save my bearings |
Thread *myself = req->_myself; |
// Thread *myself = req->op->_thread_ptr; |
MessageQueueService *service = static_cast<MessageQueueService *>(req->_service); |
MessageQueueService *service = static_cast<MessageQueueService *>(req->op->_service_ptr); |
| |
// respond to this message. | // respond to this message. |
_make_response(req, async_results::OK); | _make_response(req, async_results::OK); |
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} | } |
if( operation ) | if( operation ) |
{ | { |
service->_handle_incoming_operation(operation, myself, service); |
// operation->_thread_ptr = myself; |
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operation->_service_ptr = service; |
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service->_handle_incoming_operation(operation); |
} | } |
else | else |
break; | break; |
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// shutdown the AsyncDQueue | // shutdown the AsyncDQueue |
service->_incoming.shutdown_queue(); | service->_incoming.shutdown_queue(); |
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AsyncOpNode *op = req->op; |
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op->_request.remove_first(); |
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op->release(); |
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return_op(op); |
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delete req; |
// exit the thread ! | // exit the thread ! |
myself->exit_self( (PEGASUS_THREAD_RETURN) 1 ); |
// myself->exit_self( (PEGASUS_THREAD_RETURN) 1 ); |
return; | return; |
} | } |
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} | } |
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Boolean MessageQueueService::SendAsync(Message *msg, |
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Uint32 destination, |
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void (*callback)(Message *response, |
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void *handle, |
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void *parameter), |
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void *handle, |
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void *parameter) |
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{ |
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if(msg == NULL) |
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return false; |
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if(callback == NULL) |
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return SendForget(msg); |
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AsyncOpNode *op = get_op(); |
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msg->dest = destination; |
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if( NULL == (op->_op_dest = MessageQueue::lookup(msg->dest))) |
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{ |
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op->release(); |
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return_op(op); |
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return false; |
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} |
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op->_flags |= ASYNC_OPFLAGS_SAFE_CALLBACK; |
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op->_flags &= ~(ASYNC_OPFLAGS_FIRE_AND_FORGET); |
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op->_state &= ~ASYNC_OPSTATE_COMPLETE; |
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op->__async_callback = callback; |
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op->_callback_node = op; |
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op->_callback_handle = handle; |
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op->_callback_parameter = parameter; |
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op->_callback_response_q = this; |
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if( ! (msg->getMask() & message_mask::ha_async) ) |
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{ |
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AsyncLegacyOperationStart *wrapper = |
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new AsyncLegacyOperationStart(get_next_xid(), |
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op, |
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destination, |
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msg, |
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destination); |
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} |
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else |
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{ |
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op->_request.insert_first(msg); |
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(static_cast<AsyncMessage *>(msg))->op = op; |
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} |
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_callback.insert_last(op); |
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return _meta_dispatcher->route_async(op); |
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} |
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Boolean MessageQueueService::SendForget(Message *msg) | Boolean MessageQueueService::SendForget(Message *msg) |
{ | { |
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if (mask & message_mask::ha_async) | if (mask & message_mask::ha_async) |
(static_cast<AsyncMessage *>(msg))->op = op; | (static_cast<AsyncMessage *>(msg))->op = op; |
} | } |
op->lock(); |
|
op->_op_dest = MessageQueue::lookup(msg->dest); | op->_op_dest = MessageQueue::lookup(msg->dest); |
op->_flags |= ASYNC_OPFLAGS_FIRE_AND_FORGET; | op->_flags |= ASYNC_OPFLAGS_FIRE_AND_FORGET; |
op->_flags &= ~(ASYNC_OPFLAGS_CALLBACK | ASYNC_OPFLAGS_SIMPLE_STATUS); |
op->_flags &= ~(ASYNC_OPFLAGS_CALLBACK | ASYNC_OPFLAGS_SAFE_CALLBACK |
|
| ASYNC_OPFLAGS_SIMPLE_STATUS); |
op->_state &= ~ASYNC_OPSTATE_COMPLETE; | op->_state &= ~ASYNC_OPSTATE_COMPLETE; |
op->unlock(); |
|
if ( op->_op_dest == 0 ) | if ( op->_op_dest == 0 ) |
|
{ |
|
op->release(); |
|
return_op(op); |
return false; | return false; |
|
} |
| |
// now see if the meta dispatcher will take it | // now see if the meta dispatcher will take it |
return _meta_dispatcher->route_async(op); | return _meta_dispatcher->route_async(op); |
|
|
} | } |
| |
request->block = false; | request->block = false; |
|
request->op->_flags |= ASYNC_OPFLAGS_PSEUDO_CALLBACK; |
SendAsync(request->op, | SendAsync(request->op, |
request->dest, | request->dest, |
_sendwait_callback, | _sendwait_callback, |
|
|
return_op(request->op); | return_op(request->op); |
request->op = 0; | request->op = 0; |
} | } |
|
|
return rpl; | return rpl; |
} | } |
| |
|
|
capabilities, | capabilities, |
mask, | mask, |
_queueId); | _queueId); |
|
msg->dest = CIMOM_Q_ID; |
|
|
Boolean registered = false; | Boolean registered = false; |
AsyncReply *reply = static_cast<AsyncReply *>(SendWait( msg )); | AsyncReply *reply = static_cast<AsyncReply *>(SendWait( msg )); |
| |
|
|
capabilities, | capabilities, |
mask); | mask); |
| |
|
req->dest = CIMOM_Q_ID; |
|
|
AsyncMessage *reply = SendWait(req); | AsyncMessage *reply = SendWait(req); |
if(reply) | if(reply) |
{ | { |