version 1.2, 2002/01/18 19:27:48
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version 1.123.2.2, 2006/07/28 20:46:41
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//%////-*-c++-*-//////////////////////////////////////////////////////////////// |
//%2006//////////////////////////////////////////////////////////////////////// |
// | // |
// Copyright (c) 2000, 2001 The Open group, BMC Software, Tivoli Systems, IBM |
// Copyright (c) 2000, 2001, 2002 BMC Software; Hewlett-Packard Development |
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// Company, L.P.; IBM Corp.; The Open Group; Tivoli Systems. |
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// Copyright (c) 2003 BMC Software; Hewlett-Packard Development Company, L.P.; |
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// IBM Corp.; EMC Corporation, The Open Group. |
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// Copyright (c) 2004 BMC Software; Hewlett-Packard Development Company, L.P.; |
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// IBM Corp.; EMC Corporation; VERITAS Software Corporation; The Open Group. |
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// Copyright (c) 2005 Hewlett-Packard Development Company, L.P.; IBM Corp.; |
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// EMC Corporation; VERITAS Software Corporation; The Open Group. |
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// Copyright (c) 2006 Hewlett-Packard Development Company, L.P.; IBM Corp.; |
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// EMC Corporation; Symantec Corporation; The Open Group. |
// | // |
// 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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// Author: Mike Day (mdday@us.ibm.com) | // Author: Mike Day (mdday@us.ibm.com) |
// | // |
// Modified By: | // Modified By: |
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// Amit K Arora, IBM (amita@in.ibm.com) for Bug#1090,#2657 |
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// Josephine Eskaline Joyce, IBM (jojustin@in.ibm.com) for Bug#3259 |
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// Jim Wunderlich (Jim_Wunderlich@prodigy.net) |
// | // |
//%///////////////////////////////////////////////////////////////////////////// | //%///////////////////////////////////////////////////////////////////////////// |
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// #include <iostream.h> |
#include "MessageQueueService.h" | #include "MessageQueueService.h" |
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#include <Pegasus/Common/Tracer.h> |
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#include <Pegasus/Common/MessageLoader.h> //l10n |
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PEGASUS_NAMESPACE_BEGIN | PEGASUS_NAMESPACE_BEGIN |
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MessageQueueService::MessageQueueService(const char *name, |
cimom *MessageQueueService::_meta_dispatcher = 0; |
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AtomicInt MessageQueueService::_service_count(0); |
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Mutex MessageQueueService::_meta_dispatcher_mutex; |
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static struct timeval deallocateWait = {300, 0}; |
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ThreadPool *MessageQueueService::_thread_pool = 0; |
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MessageQueueService::PollingList* MessageQueueService::_polling_list; |
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Mutex MessageQueueService::_polling_list_mutex; |
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Thread* MessageQueueService::_polling_thread = 0; |
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ThreadPool *MessageQueueService::get_thread_pool() |
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{ |
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return _thread_pool; |
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} |
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// |
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// MAX_THREADS_PER_SVC_QUEUE |
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// |
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// JR Wunderlich Jun 6, 2005 |
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// |
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#define MAX_THREADS_PER_SVC_QUEUE_LIMIT 5000 |
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#define MAX_THREADS_PER_SVC_QUEUE_DEFAULT 5 |
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#ifndef MAX_THREADS_PER_SVC_QUEUE |
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# define MAX_THREADS_PER_SVC_QUEUE MAX_THREADS_PER_SVC_QUEUE_DEFAULT |
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#endif |
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Uint32 max_threads_per_svc_queue; |
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ThreadReturnType PEGASUS_THREAD_CDECL |
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MessageQueueService::kill_idle_threads(void *parm) |
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{ |
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static struct timeval now, last = {0,0}; |
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Time::gettimeofday(&now); |
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int dead_threads = 0; |
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if (now.tv_sec - last.tv_sec > 120) |
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{ |
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Time::gettimeofday(&last); |
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try |
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{ |
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dead_threads = MessageQueueService::_thread_pool->cleanupIdleThreads(); |
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} |
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catch(...) |
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{ |
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} |
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} |
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#ifdef PEGASUS_POINTER_64BIT |
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return (ThreadReturnType)(Uint64)dead_threads; |
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#elif PEGASUS_PLATFORM_AIX_RS_IBMCXX |
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return (ThreadReturnType)(unsigned long)dead_threads; |
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#else |
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return (ThreadReturnType)(Uint32)dead_threads; |
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#endif |
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} |
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ThreadReturnType 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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List<MessageQueueService, Mutex> *list = |
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reinterpret_cast<List<MessageQueueService, Mutex>*>(myself->get_parm()); |
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while (_stop_polling.get() == 0) |
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{ |
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_polling_sem.wait(); |
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if (_stop_polling.get() != 0) |
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{ |
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break; |
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} |
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// The polling_routine thread must hold the lock on the |
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// _polling_thread list while processing incoming messages. |
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// This lock is used to give this thread ownership of |
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// services on the _polling_routine list. |
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// This is necessary to avoid confict with other threads |
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// processing the _polling_list |
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// (e.g., MessageQueueServer::~MessageQueueService). |
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list->lock(); |
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MessageQueueService *service = list->front(); |
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ThreadStatus rtn = PEGASUS_THREAD_OK; |
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while (service != NULL) |
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{ |
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if ((service->_incoming.count() > 0) && |
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(service->_die.get() == 0) && |
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(service->_threads.get() < max_threads_per_svc_queue)) |
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{ |
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// The _threads count is used to track the |
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// number of active threads that have been allocated |
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// to process messages for this service. |
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// The _threads count MUST be incremented while |
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// the polling_routine owns the _polling_thread |
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// lock and has ownership of the service object. |
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service->_threads++; |
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try |
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{ |
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rtn = _thread_pool->allocate_and_awaken( |
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service, _req_proc, &_polling_sem); |
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} |
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catch (...) |
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{ |
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service->_threads--; |
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// allocate_and_awaken should never generate an exception. |
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PEGASUS_ASSERT(0); |
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} |
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// if no more threads available, break from processing loop |
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if (rtn != PEGASUS_THREAD_OK ) |
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{ |
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service->_threads--; |
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Logger::put(Logger::STANDARD_LOG, System::CIMSERVER, Logger::TRACE, |
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"Not enough threads to process this request. Skipping."); |
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Tracer::trace(TRC_MESSAGEQUEUESERVICE, Tracer::LEVEL2, |
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"Could not allocate thread for %s. " \ |
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"Queue has %d messages waiting and %d threads servicing." \ |
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"Skipping the service for right now. ", |
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service->getQueueName(), |
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service->_incoming.count(), |
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service->_threads.get()); |
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Threads::yield(); |
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service = NULL; |
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} |
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} |
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if (service != NULL) |
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{ |
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service = list->next_of(service); |
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} |
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} |
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list->unlock(); |
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if (_check_idle_flag.get() != 0) |
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{ |
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_check_idle_flag = 0; |
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// try to do idle thread clean up processing when system is not busy |
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// if system is busy there may not be a thread available to allocate |
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// so nothing will be done and that is OK. |
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if ( _thread_pool->allocate_and_awaken(service, kill_idle_threads, &_polling_sem) != PEGASUS_THREAD_OK) |
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{ |
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Logger::put(Logger::STANDARD_LOG, System::CIMSERVER, Logger::TRACE, |
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"Not enough threads to kill idle threads. What an irony."); |
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Tracer::trace(TRC_MESSAGEQUEUESERVICE, Tracer::LEVEL2, |
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"Could not allocate thread to kill idle threads." \ |
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"Skipping. "); |
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} |
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} |
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} |
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myself->exit_self( (ThreadReturnType) 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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AtomicInt MessageQueueService::_check_idle_flag(0); |
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MessageQueueService::MessageQueueService( |
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const char *name, |
Uint32 queueID, | Uint32 queueID, |
Uint32 capabilities, | Uint32 capabilities, |
Uint32 mask) | Uint32 mask) |
: Base(name, false, queueID), |
: Base(name, true, queueID), |
_capabilities(capabilities), |
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_mask(mask), | _mask(mask), |
_die(0) |
_die(0), |
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_threads(0), |
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_incoming(), |
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_incoming_queue_shutdown(0) |
{ | { |
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_capabilities = (capabilities | module_capabilities::async); |
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_default_op_timeout.tv_sec = 30; | _default_op_timeout.tv_sec = 30; |
_default_op_timeout.tv_usec = 100; | _default_op_timeout.tv_usec = 100; |
_meta_dispatcher = static_cast<cimom *>(Base::lookup(CIMOM_Q_ID)); |
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max_threads_per_svc_queue = MAX_THREADS_PER_SVC_QUEUE; |
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// if requested thread max is out of range, then set to |
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// MAX_THREADS_PER_SVC_QUEUE_LIMIT |
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if ((max_threads_per_svc_queue < 1) || |
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(max_threads_per_svc_queue > MAX_THREADS_PER_SVC_QUEUE_LIMIT)) |
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{ |
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max_threads_per_svc_queue = MAX_THREADS_PER_SVC_QUEUE_LIMIT; |
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} |
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Tracer::trace(TRC_MESSAGEQUEUESERVICE, Tracer::LEVEL2, |
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"max_threads_per_svc_queue set to %u.", max_threads_per_svc_queue); |
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AutoMutex autoMut(_meta_dispatcher_mutex); |
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if(_meta_dispatcher == 0 ) | if(_meta_dispatcher == 0 ) |
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{ |
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_stop_polling = 0; |
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PEGASUS_ASSERT(_service_count.get() == 0); |
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_meta_dispatcher = new cimom(); |
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if (_meta_dispatcher == NULL) |
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{ |
throw NullPointer(); | throw NullPointer(); |
} | } |
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// _thread_pool = new ThreadPool(initial_cnt, "MessageQueueService", |
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// minimum_cnt, maximum_cnt, deallocateWait); |
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// |
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_thread_pool = |
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new ThreadPool(0, "MessageQueueService", 0, 0, deallocateWait); |
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} |
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_service_count++; |
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if (false == register_service(name, _capabilities, _mask)) |
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{ |
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//l10n |
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//throw BindFailedException("MessageQueueService Base Unable to register with Meta Dispatcher"); |
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MessageLoaderParms parms("Common.MessageQueueService.UNABLE_TO_REGISTER", |
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"MessageQueueService Base Unable to register with Meta Dispatcher"); |
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throw BindFailedException(parms); |
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} |
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MessageQueueService::~MessageQueueService(void) |
_get_polling_list()->insert_back(this); |
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} |
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MessageQueueService::~MessageQueueService() |
{ | { |
_die = 1; | _die = 1; |
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// The polling_routine locks the _polling_list while |
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// processing the incoming messages for services on the |
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// list. Deleting the service from the _polling_list |
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// prior to processing, avoids synchronization issues |
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// with the _polling_routine. |
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// ATTN: added to prevent assertion in List in which the list does not |
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// contain this element. |
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if (_get_polling_list()->contains(this)) |
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_get_polling_list()->remove(this); |
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// ATTN: The code for closing the _incoming queue |
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// is not working correctly. In OpenPegasus 2.5, |
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// execution of the following code is very timing |
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// dependent. This needs to be fix. |
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// See Bug 4079 for details. |
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if (_incoming_queue_shutdown.get() == 0) |
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{ |
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_shutdown_incoming_queue(); |
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} |
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// Wait until all threads processing the messages |
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// for this service have completed. |
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while (_threads.get() > 0) |
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{ |
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Threads::yield(); |
} | } |
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{ |
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AutoMutex autoMut(_meta_dispatcher_mutex); |
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_service_count--; |
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if (_service_count.get() == 0) |
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{ |
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AtomicInt MessageQueueService::_xid(1); |
_stop_polling++; |
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_polling_sem.signal(); |
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if (_polling_thread) { |
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_polling_thread->join(); |
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delete _polling_thread; |
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_polling_thread = 0; |
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} |
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_meta_dispatcher->_shutdown_routed_queue(); |
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delete _meta_dispatcher; |
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_meta_dispatcher = 0; |
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// mutex is UNLOCKED |
delete _thread_pool; |
void MessageQueueService::handleEnqueue(void) |
_thread_pool = 0; |
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} |
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} // mutex unlocks here |
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// Clean up in case there are extra stuff on the queue. |
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while (_incoming.count()) |
{ | { |
Message *msg = dequeue(); |
try { |
if( msg ) |
delete _incoming.dequeue(); |
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} catch (const ListClosed &e) |
{ | { |
if(msg->getMask() & message_mask::ha_async) |
// If the list is closed, there is nothing we can do. |
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break; |
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} |
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} |
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} |
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void MessageQueueService::_shutdown_incoming_queue() |
{ | { |
_handle_async_msg(static_cast<AsyncMessage *>(msg)); |
if (_incoming_queue_shutdown.get() > 0) |
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return; |
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AsyncIoctl *msg = new AsyncIoctl( |
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0, |
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_queueId, |
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_queueId, |
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true, |
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AsyncIoctl::IO_CLOSE, |
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0, |
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0); |
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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); |
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msg->op->_state &= ~ASYNC_OPSTATE_COMPLETE; |
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msg->op->_op_dest = this; |
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msg->op->_request.reset(msg); |
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try { |
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_incoming.enqueue_wait(msg->op); |
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_polling_sem.signal(); |
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} catch (const ListClosed &) |
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{ |
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// This means the queue has already been shut-down (happens when there |
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// are two AsyncIoctrl::IO_CLOSE messages generated and one got first |
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// processed. |
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delete msg; |
} | } |
else |
catch (const Permission &) |
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{ |
delete msg; | delete msg; |
} | } |
} | } |
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void MessageQueueService::_enqueueAsyncResponse(AsyncRequest *request, |
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AsyncReply *reply, |
void MessageQueueService::enqueue(Message *msg) |
Uint32 state, |
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Uint32 flag) |
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{ | { |
PEGASUS_ASSERT(request != 0 && reply != 0 ); |
PEG_METHOD_ENTER(TRC_MESSAGEQUEUESERVICE, "MessageQueueService::enqueue()"); |
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AsyncOpNode *op = request->op; |
Base::enqueue(msg); |
op->lock(); |
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// if (false == op->_response.exists(reply)) |
PEG_METHOD_EXIT(); |
// op->_response.insert_last(reply); |
} |
op->_response = reply; |
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op->_state |= state ; |
ThreadReturnType PEGASUS_THREAD_CDECL MessageQueueService::_req_proc( |
op->_flags |= flag; |
void * parm) |
gettimeofday(&(op->_updated), NULL); |
{ |
op->unlock(); |
MessageQueueService* service = |
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reinterpret_cast<MessageQueueService*>(parm); |
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PEGASUS_ASSERT(service != 0); |
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try |
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{ |
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if (service->_die.get() != 0) |
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{ |
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service->_threads--; |
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return (0); |
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} |
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// pull messages off the incoming queue and dispatch them. then |
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// check pending messages that are non-blocking |
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AsyncOpNode *operation = 0; |
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// many operations may have been queued. |
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do |
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{ |
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try |
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{ |
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operation = service->_incoming.dequeue(); |
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} |
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catch (ListClosed &) |
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{ |
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// ATTN: This appears to be a common loop exit path. |
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//PEG_TRACE_STRING(TRC_DISCARDED_DATA, Tracer::LEVEL2, |
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// "Caught ListClosed exception. Exiting _req_proc."); |
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break; |
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} |
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if (operation) |
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{ |
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operation->_service_ptr = service; |
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service->_handle_incoming_operation(operation); |
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} |
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} while (operation); |
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} |
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catch (const Exception& e) |
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{ |
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PEG_TRACE_STRING(TRC_DISCARDED_DATA, Tracer::LEVEL2, |
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String("Caught exception: \"") + e.getMessage() + |
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"\". Exiting _req_proc."); |
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} |
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catch (...) |
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{ |
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PEG_TRACE_STRING(TRC_DISCARDED_DATA, Tracer::LEVEL2, |
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"Caught unrecognized exception. Exiting _req_proc."); |
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} |
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service->_threads--; |
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return(0); |
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} |
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void MessageQueueService::_sendwait_callback( |
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AsyncOpNode *op, |
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MessageQueue *q, |
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void *parm) |
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{ |
op->_client_sem.signal(); | op->_client_sem.signal(); |
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} |
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// callback function is responsible for cleaning up all resources |
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// including op, op->_callback_node, and op->_callback_ptr |
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void MessageQueueService::_handle_async_callback(AsyncOpNode *op) |
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{ |
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if (op->_flags & ASYNC_OPFLAGS_SAFE_CALLBACK) |
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{ |
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Message *msg = op->removeRequest(); |
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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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// may be overriden by derived classes |
msg = op->removeResponse(); |
void MessageQueueService::_handle_async_msg(AsyncMessage *msg) |
if (msg && (msg->getMask() & message_mask::ha_async)) |
{ | { |
if( msg == 0 ) |
if (msg->getType() == async_messages::ASYNC_LEGACY_OP_RESULT) |
return; |
{ |
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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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{ |
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// note that _callback_node may be different from op |
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// op->_callback_response_q is a "this" pointer we can use for |
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// static callback methods |
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op->_async_callback(op->_callback_node, op->_callback_response_q, op->_callback_ptr); |
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} |
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} |
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Uint32 mask = msg->getMask(); |
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Uint32 type = msg->getType(); |
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if (mask & message_mask::ha_async) |
void MessageQueueService::_handle_incoming_operation(AsyncOpNode *operation) |
{ | { |
if (mask & message_mask::ha_request) |
if (operation != 0) |
_handle_async_request(static_cast<AsyncRequest *>(msg)); |
{ |
else |
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_handle_async_reply(static_cast<AsyncReply *>(msg)); |
// ATTN: optimization |
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// << Tue Feb 19 14:10:38 2002 mdd >> |
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operation->lock(); |
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Message *rq = operation->_request.get(); |
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// optimization <<< Thu Mar 7 21:04:05 2002 mdd >>> |
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// move this to the bottom of the loop when the majority of |
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// messages become async messages. |
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// divert legacy messages to handleEnqueue |
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if ((rq != 0) && (!(rq->getMask() & message_mask::ha_async))) |
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{ |
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operation->_request.release(); |
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operation->unlock(); |
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// delete the op node |
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operation->release(); |
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return_op(operation); |
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handleEnqueue(rq); |
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return; |
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} |
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if ((operation->_flags & ASYNC_OPFLAGS_CALLBACK || |
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operation->_flags & ASYNC_OPFLAGS_SAFE_CALLBACK) && |
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(operation->_state & ASYNC_OPSTATE_COMPLETE)) |
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{ |
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operation->unlock(); |
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_handle_async_callback(operation); |
} | } |
else | else |
delete msg; |
{ |
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PEGASUS_ASSERT(rq != 0); |
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operation->unlock(); |
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_handle_async_request(static_cast<AsyncRequest *>(rq)); |
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} |
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} |
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return; |
} | } |
| |
void MessageQueueService::_handle_async_request(AsyncRequest *req) | void MessageQueueService::_handle_async_request(AsyncRequest *req) |
{ | { |
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if (req != 0) |
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{ |
req->op->processing(); | req->op->processing(); |
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Uint32 type = req->getType(); | Uint32 type = req->getType(); |
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// we don't handle this request message | // we don't handle this request message |
_make_response(req, async_results::CIM_NAK ); | _make_response(req, async_results::CIM_NAK ); |
} | } |
|
} |
|
} |
| |
|
|
|
Boolean MessageQueueService::_enqueueResponse( |
|
Message* request, |
|
Message* response) |
|
{ |
|
|
|
STAT_COPYDISPATCHER |
|
|
|
PEG_METHOD_ENTER(TRC_MESSAGEQUEUESERVICE, |
|
"MessageQueueService::_enqueueResponse"); |
|
|
|
if (request->getMask() & message_mask::ha_async) |
|
{ |
|
if (response->getMask() & message_mask::ha_async) |
|
{ |
|
_completeAsyncResponse(static_cast<AsyncRequest *>(request), |
|
static_cast<AsyncReply *>(response), |
|
ASYNC_OPSTATE_COMPLETE, 0); |
|
PEG_METHOD_EXIT(); |
|
return true; |
|
} |
} | } |
| |
void MessageQueueService::_handle_async_reply(AsyncReply *rep) |
if (request->_async != 0) |
{ | { |
|
Uint32 mask = request->_async->getMask(); |
|
PEGASUS_ASSERT(mask & (message_mask::ha_async | message_mask::ha_request)); |
| |
if (rep->op != 0 ) |
AsyncRequest *async = static_cast<AsyncRequest *>(request->_async); |
rep->op->processing(); |
AsyncOpNode *op = async->op; |
|
request->_async = 0; |
|
// the legacy request is going to be deleted by its handler |
|
// remove it from the op node |
| |
Uint32 type = rep->getType(); |
static_cast<AsyncLegacyOperationStart *>(async)->get_action(); |
| |
if ( type == async_messages::ASYNC_OP_RESULT ) |
AsyncLegacyOperationResult *async_result = |
handle_AsyncOperationResult(static_cast<AsyncOperationResult *>(rep)); |
new AsyncLegacyOperationResult( |
else |
op, |
|
response); |
|
_completeAsyncResponse( |
|
async, |
|
async_result, |
|
ASYNC_OPSTATE_COMPLETE, |
|
0); |
|
PEG_METHOD_EXIT(); |
|
return true; |
|
} |
|
|
|
// ensure that the destination queue is in response->dest |
|
PEG_METHOD_EXIT(); |
|
return SendForget(response); |
|
|
|
} |
|
|
|
void MessageQueueService::_make_response(Message *req, Uint32 code) |
{ | { |
// we don't handle this reply |
cimom::_make_response(req, code); |
; |
} |
|
|
|
|
|
void MessageQueueService::_completeAsyncResponse( |
|
AsyncRequest *request, |
|
AsyncReply *reply, |
|
Uint32 state, |
|
Uint32 flag) |
|
{ |
|
PEG_METHOD_ENTER(TRC_MESSAGEQUEUESERVICE, |
|
"MessageQueueService::_completeAsyncResponse"); |
|
|
|
cimom::_completeAsyncResponse(request, reply, state, flag); |
|
|
|
PEG_METHOD_EXIT(); |
} | } |
| |
if( rep->op != 0 ) |
|
rep->op->release(); |
void MessageQueueService::_complete_op_node( |
|
AsyncOpNode *op, |
|
Uint32 state, |
|
Uint32 flag, |
|
Uint32 code) |
|
{ |
|
cimom::_complete_op_node(op, state, flag, code); |
} | } |
| |
void MessageQueueService::_make_response(AsyncRequest *req, Uint32 code) |
|
|
Boolean MessageQueueService::accept_async(AsyncOpNode *op) |
{ | { |
AsyncReply *reply = |
if (_incoming_queue_shutdown.get() > 0) |
new AsyncReply(async_messages::REPLY, |
return false; |
req->getKey(), |
if (_polling_thread == NULL) |
req->getRouting(), |
{ |
0, |
_polling_thread = new Thread( |
req->op, |
polling_routine, |
code, |
reinterpret_cast<void *>(_get_polling_list()), |
req->resp, |
|
false); | false); |
_enqueueAsyncResponse(req, reply, ASYNC_OPSTATE_COMPLETE, 0 ); |
ThreadStatus tr = PEGASUS_THREAD_OK; |
|
while ( (tr =_polling_thread->run()) != PEGASUS_THREAD_OK) |
|
{ |
|
if (tr == PEGASUS_THREAD_INSUFFICIENT_RESOURCES) |
|
Threads::yield(); |
|
else |
|
throw Exception(MessageLoaderParms("Common.MessageQueueService.NOT_ENOUGH_THREAD", |
|
"Could not allocate thread for the polling thread.")); |
} | } |
|
} |
|
// ATTN optimization remove the message checking altogether in the base |
|
// << Mon Feb 18 14:02:20 2002 mdd >> |
|
op->lock(); |
|
Message *rq = op->_request.get(); |
|
Message *rp = op->_response.get(); |
|
op->unlock(); |
| |
|
if ((rq != 0 && (true == messageOK(rq))) || |
|
(rp != 0 && (true == messageOK(rp))) && _die.get() == 0) |
|
{ |
|
_incoming.enqueue_wait(op); |
|
_polling_sem.signal(); |
|
return true; |
|
} |
|
return false; |
|
} |
|
|
|
Boolean MessageQueueService::messageOK(const Message *msg) |
|
{ |
|
if (_incoming_queue_shutdown.get() > 0) |
|
return false; |
|
return true; |
|
} |
| |
void MessageQueueService::handle_heartbeat_request(AsyncRequest *req) | void MessageQueueService::handle_heartbeat_request(AsyncRequest *req) |
{ | { |
// default action is to echo a heartbeat response | // default action is to echo a heartbeat response |
| |
AsyncReply *reply = |
AsyncReply *reply = new AsyncReply( |
new AsyncReply(async_messages::HEARTBEAT, |
async_messages::HEARTBEAT, |
req->getKey(), |
|
req->getRouting(), |
|
0, | 0, |
req->op, | req->op, |
async_results::OK, | async_results::OK, |
req->resp, | req->resp, |
false); | false); |
_enqueueAsyncResponse(req, reply, ASYNC_OPSTATE_COMPLETE, 0 ); |
_completeAsyncResponse(req, reply, ASYNC_OPSTATE_COMPLETE, 0); |
|
|
} | } |
| |
| |
void MessageQueueService::handle_heartbeat_reply(AsyncReply *rep) | void MessageQueueService::handle_heartbeat_reply(AsyncReply *rep) |
{ | { |
; |
|
} | } |
| |
void MessageQueueService::handle_AsyncIoctl(AsyncIoctl *req) | void MessageQueueService::handle_AsyncIoctl(AsyncIoctl *req) |
{ | { |
|
switch (req->ctl) |
|
{ |
|
case AsyncIoctl::IO_CLOSE: |
|
{ |
|
MessageQueueService *service = static_cast<MessageQueueService *>(req->op->_service_ptr); |
|
|
|
#ifdef MESSAGEQUEUESERVICE_DEBUG |
|
PEGASUS_STD(cout) << service->getQueueName() << " Received AsyncIoctl::IO_CLOSE " << PEGASUS_STD(endl); |
|
#endif |
|
|
|
// respond to this message. this is fire and forget, so we don't need to delete anything. |
|
// this takes care of two problems that were being found |
|
// << Thu Oct 9 10:52:48 2003 mdd >> |
_make_response(req, async_results::OK); | _make_response(req, async_results::OK); |
|
// ensure we do not accept any further messages |
|
|
|
// ensure we don't recurse on IO_CLOSE |
|
if (_incoming_queue_shutdown.get() > 0) |
|
break; |
|
|
|
// set the closing flag |
|
service->_incoming_queue_shutdown = 1; |
|
// empty out the queue |
|
while (1) |
|
{ |
|
AsyncOpNode *operation; |
|
try |
|
{ |
|
operation = service->_incoming.dequeue(); |
} | } |
void MessageQueueService::handle_CimServiceStart(CimServiceStart *req) |
catch(IPCException &) |
|
{ |
|
break; |
|
} |
|
if (operation) |
{ | { |
|
operation->_service_ptr = service; |
|
service->_handle_incoming_operation(operation); |
|
} |
|
else |
|
break; |
|
} // message processing loop |
|
|
|
// shutdown the AsyncQueue |
|
service->_incoming.close(); |
|
return; |
|
} |
|
|
|
default: |
_make_response(req, async_results::CIM_NAK); | _make_response(req, async_results::CIM_NAK); |
} | } |
|
} |
|
|
|
void MessageQueueService::handle_CimServiceStart(CimServiceStart *req) |
|
{ |
|
|
|
#ifdef MESSAGEQUEUESERVICE_DEBUG |
|
PEGASUS_STD(cout) << getQueueName() << "received START" << PEGASUS_STD(endl); |
|
#endif |
|
|
|
// clear the stoped bit and update |
|
_capabilities &= (~(module_capabilities::stopped)); |
|
_make_response(req, async_results::OK); |
|
// now tell the meta dispatcher we are stopped |
|
update_service(_capabilities, _mask); |
|
|
|
} |
void MessageQueueService::handle_CimServiceStop(CimServiceStop *req) | void MessageQueueService::handle_CimServiceStop(CimServiceStop *req) |
{ | { |
_make_response(req, async_results::CIM_NAK); |
#ifdef MESSAGEQUEUESERVICE_DEBUG |
|
PEGASUS_STD(cout) << getQueueName() << "received STOP" << PEGASUS_STD(endl); |
|
#endif |
|
// set the stopeed bit and update |
|
_capabilities |= module_capabilities::stopped; |
|
_make_response(req, async_results::CIM_STOPPED); |
|
// now tell the meta dispatcher we are stopped |
|
update_service(_capabilities, _mask); |
} | } |
|
|
void MessageQueueService::handle_CimServicePause(CimServicePause *req) | void MessageQueueService::handle_CimServicePause(CimServicePause *req) |
{ | { |
_make_response(req, async_results::CIM_NAK); |
// set the paused bit and update |
|
_capabilities |= module_capabilities::paused; |
|
update_service(_capabilities, _mask); |
|
_make_response(req, async_results::CIM_PAUSED); |
|
// now tell the meta dispatcher we are stopped |
} | } |
|
|
void MessageQueueService::handle_CimServiceResume(CimServiceResume *req) | void MessageQueueService::handle_CimServiceResume(CimServiceResume *req) |
{ | { |
_make_response(req, async_results::CIM_NAK); |
// clear the paused bit and update |
|
_capabilities &= (~(module_capabilities::paused)); |
|
update_service(_capabilities, _mask); |
|
_make_response(req, async_results::OK); |
|
// now tell the meta dispatcher we are stopped |
} | } |
| |
void MessageQueueService::handle_AsyncOperationStart(AsyncOperationStart *req) | void MessageQueueService::handle_AsyncOperationStart(AsyncOperationStart *req) |
{ | { |
_make_response(req, async_results::CIM_NAK); | _make_response(req, async_results::CIM_NAK); |
|
|
} | } |
| |
void MessageQueueService::handle_AsyncOperationResult(AsyncOperationResult *req) | void MessageQueueService::handle_AsyncOperationResult(AsyncOperationResult *req) |
|
|
; | ; |
} | } |
| |
AsyncOpNode *MessageQueueService::get_op(void) |
|
{ |
|
AsyncOpNode *op = _meta_dispatcher->get_cached_op(); |
|
if(op == 0 ) |
|
throw NullPointer(); |
|
|
|
op->write_state(ASYNC_OPSTATE_UNKNOWN); |
|
op->write_flags(ASYNC_OPFLAGS_SINGLE | |
|
ASYNC_OPFLAGS_NORMAL | |
|
ASYNC_OPFLAGS_META_DISPATCHER); |
|
return op; |
|
} |
|
| |
void MessageQueueService::return_op(AsyncOpNode *op) |
void MessageQueueService::handle_AsyncLegacyOperationStart(AsyncLegacyOperationStart *req) |
{ | { |
PEGASUS_ASSERT(op->read_state() & ASYNC_OPSTATE_RELEASED ); |
// remove the legacy message from the request and enqueue it to its destination |
|
Uint32 result = async_results::CIM_NAK; |
| |
if(op->read_state() & ASYNC_OPFLAGS_META_DISPATCHER ) |
Message *legacy = req->_act; |
|
if (legacy != 0) |
|
{ |
|
MessageQueue* queue = MessageQueue::lookup(req->_legacy_destination); |
|
if (queue != 0) |
{ | { |
_meta_dispatcher->cache_op(op); |
if (queue->isAsync() == true) |
|
{ |
|
(static_cast<MessageQueueService *>(queue))->handleEnqueue(legacy); |
} | } |
else | else |
delete op; |
{ |
|
// Enqueue the response: |
|
queue->enqueue(req->get_action()); |
} | } |
| |
AsyncMessage *MessageQueueService::SendWait(AsyncRequest *request) |
result = async_results::OK; |
{ |
} |
if (request == 0 ) |
} |
throw NullPointer(); |
_make_response(req, result); |
AsyncMessage *ret_msg = 0; |
} |
| |
AsyncOpNode *op = request->op; |
void MessageQueueService::handle_AsyncLegacyOperationResult(AsyncLegacyOperationResult *rep) |
|
{ |
|
; |
|
} |
| |
if(op == 0 ) |
AsyncOpNode *MessageQueueService::get_op() |
return 0; |
|
// ATTN: debugging |
|
op->put_response(0); |
|
if(true == _meta_dispatcher->accept_async(static_cast<Message *>(request))) |
|
{ | { |
op->_client_sem.wait(); |
AsyncOpNode *op = new AsyncOpNode(); |
ret_msg = static_cast<AsyncMessage *>(op->_response); |
|
op->_response = 0; |
|
| |
|
op->_state = ASYNC_OPSTATE_UNKNOWN; |
|
op->_flags = ASYNC_OPFLAGS_SINGLE | ASYNC_OPFLAGS_NORMAL; |
| |
// op->lock(); |
return op; |
// while( op->_response.count() ) |
|
// { |
|
// AsyncMessage *rply = static_cast<AsyncMessage *>(op->_response.remove_last()); |
|
// if (rply != 0 ) |
|
// { |
|
// rply->op = 0; |
|
// reply_list->insert_first( static_cast<AsyncMessage *>(op->_response) ); |
|
// } |
|
// } |
|
// release the opnode, the meta-dispatcher will recycle it for us |
|
// op->_state |= ASYNC_OPSTATE_RELEASED ; |
|
// op->unlock(); |
|
} | } |
return ret_msg; |
|
| |
|
void MessageQueueService::return_op(AsyncOpNode *op) |
|
{ |
|
PEGASUS_ASSERT(op->_state & ASYNC_OPSTATE_RELEASED); |
|
delete op; |
} | } |
| |
| |
void MessageQueueService::SendWait(AsyncRequest *request, unlocked_dq<AsyncMessage> *reply_list) |
Boolean MessageQueueService::ForwardOp( |
|
AsyncOpNode *op, |
|
Uint32 destination) |
{ | { |
if (request == 0 || reply_list == 0 ) |
PEGASUS_ASSERT(op != 0); |
throw NullPointer(); |
op->lock(); |
|
op->_op_dest = MessageQueue::lookup(destination); |
|
op->_flags |= (ASYNC_OPFLAGS_FIRE_AND_FORGET | ASYNC_OPFLAGS_FORWARD); |
|
op->_flags &= ~(ASYNC_OPFLAGS_CALLBACK); |
|
op->unlock(); |
|
if (op->_op_dest == 0) |
|
return false; |
|
|
|
return _meta_dispatcher->route_async(op); |
|
} |
| |
AsyncOpNode *op = request->op; |
|
| |
if(op == 0 ) |
Boolean MessageQueueService::SendAsync( |
return; |
AsyncOpNode *op, |
// ATTN: debugging |
Uint32 destination, |
op->put_response(0); |
void (*callback)(AsyncOpNode *, MessageQueue *, void *), |
if(true == _meta_dispatcher->accept_async(static_cast<Message *>(request))) |
MessageQueue *callback_response_q, |
|
void *callback_ptr) |
{ | { |
|
PEGASUS_ASSERT(op != 0 && callback != 0); |
| |
|
// get the queue handle for the destination |
| |
op->_client_sem.wait(); |
|
op->lock(); | op->lock(); |
|
op->_op_dest = MessageQueue::lookup(destination); // destination of this message |
|
op->_flags |= ASYNC_OPFLAGS_CALLBACK; |
|
op->_flags &= ~(ASYNC_OPFLAGS_FIRE_AND_FORGET); |
|
// initialize the callback data |
|
op->_async_callback = callback; // callback function to be executed by recpt. of response |
|
op->_callback_node = op; // the op node |
|
op->_callback_response_q = callback_response_q; // the queue that will receive the response |
|
op->_callback_ptr = callback_ptr; // user data for callback |
|
op->_callback_request_q = this; // I am the originator of this request |
| |
AsyncMessage *response = static_cast<AsyncMessage *>(op->_response); |
|
reply_list->insert_first(response); |
|
op->unlock(); | op->unlock(); |
|
if (op->_op_dest == 0) |
|
return false; |
| |
|
return _meta_dispatcher->route_async(op); |
|
} |
|
|
|
|
|
Boolean MessageQueueService::SendAsync( |
|
Message *msg, |
|
Uint32 destination, |
|
void (*callback)(Message *response, void *handle, void *parameter), |
|
void *handle, |
|
void *parameter) |
|
{ |
|
if (msg == NULL) |
|
return false; |
|
if (callback == NULL) |
|
return SendForget(msg); |
|
AsyncOpNode *op = get_op(); |
|
msg->dest = destination; |
|
if (NULL == (op->_op_dest = MessageQueue::lookup(msg->dest))) |
|
{ |
op->release(); | op->release(); |
|
return_op(op); |
|
return false; |
|
} |
|
op->_flags |= ASYNC_OPFLAGS_SAFE_CALLBACK; |
|
op->_flags &= ~(ASYNC_OPFLAGS_FIRE_AND_FORGET); |
|
op->_state &= ~ASYNC_OPSTATE_COMPLETE; |
|
op->__async_callback = callback; |
|
op->_callback_node = op; |
|
op->_callback_handle = handle; |
|
op->_callback_parameter = parameter; |
|
op->_callback_response_q = this; |
| |
// op->lock(); |
if (!(msg->getMask() & message_mask::ha_async)) |
// while( op->_response.count() ) |
{ |
// { |
AsyncLegacyOperationStart *wrapper = new AsyncLegacyOperationStart( |
// AsyncMessage *rply = static_cast<AsyncMessage *>(op->_response.remove_last()); |
op, |
// if (rply != 0 ) |
destination, |
// { |
msg, |
// rply->op = 0; |
destination); |
// reply_list->insert_first( static_cast<AsyncMessage *>(op->_response) ); |
|
// } |
|
// } |
|
// release the opnode, the meta-dispatcher will recycle it for us |
|
// op->_state |= ASYNC_OPSTATE_RELEASED ; |
|
// op->unlock(); |
|
} | } |
else | else |
{ | { |
// manually free the opnode and message |
op->_request.reset(msg); |
|
(static_cast<AsyncMessage *>(msg))->op = op; |
|
} |
|
return _meta_dispatcher->route_async(op); |
|
} |
|
|
|
|
|
Boolean MessageQueueService::SendForget(Message *msg) |
|
{ |
|
AsyncOpNode *op = 0; |
|
Uint32 mask = msg->getMask(); |
|
|
|
if (mask & message_mask::ha_async) |
|
{ |
|
op = (static_cast<AsyncMessage *>(msg))->op ; |
|
} |
|
|
|
if (op == 0) |
|
{ |
|
op = get_op(); |
|
op->_request.reset(msg); |
|
if (mask & message_mask::ha_async) |
|
{ |
|
(static_cast<AsyncMessage *>(msg))->op = op; |
|
} |
|
} |
|
op->_op_dest = MessageQueue::lookup(msg->dest); |
|
op->_flags |= ASYNC_OPFLAGS_FIRE_AND_FORGET; |
|
op->_flags &= ~(ASYNC_OPFLAGS_CALLBACK | ASYNC_OPFLAGS_SAFE_CALLBACK |
|
| ASYNC_OPFLAGS_SIMPLE_STATUS); |
|
op->_state &= ~ASYNC_OPSTATE_COMPLETE; |
|
if (op->_op_dest == 0) |
|
{ |
op->release(); | op->release(); |
return_op(op); | return_op(op); |
|
return false; |
} | } |
|
|
|
// now see if the meta dispatcher will take it |
|
return _meta_dispatcher->route_async(op); |
} | } |
| |
// Boolean MessageQueueService::SendAsync(AsyncMessage *msg) |
|
// { |
|
// return _meta_dispatcher->accept_async(static_cast<Message *>(msg)); |
|
// } |
|
| |
|
AsyncReply *MessageQueueService::SendWait(AsyncRequest *request) |
|
{ |
|
if (request == 0) |
|
return 0 ; |
| |
Boolean MessageQueueService::register_service(String name, |
Boolean destroy_op = false; |
Uint32 capabilities, |
|
Uint32 mask) |
|
| |
|
if (request->op == 0) |
{ | { |
AsyncOpNode *op = _meta_dispatcher->get_cached_op(); |
request->op = get_op(); |
|
request->op->_request.reset(request); |
|
destroy_op = true; |
|
} |
| |
op->_state |= ASYNC_OPSTATE_UNKNOWN; |
request->block = false; |
op->_flags |= ASYNC_OPFLAGS_SINGLE | ASYNC_OPFLAGS_NORMAL; |
request->op->_flags |= ASYNC_OPFLAGS_PSEUDO_CALLBACK; |
|
SendAsync( |
|
request->op, |
|
request->dest, |
|
_sendwait_callback, |
|
this, |
|
(void *)0); |
| |
RegisterCimService *msg = new RegisterCimService(get_next_xid(), |
request->op->_client_sem.wait(); |
op, |
|
|
AsyncReply* rpl = static_cast<AsyncReply *>(request->op->removeResponse()); |
|
rpl->op = 0; |
|
|
|
if (destroy_op == true) |
|
{ |
|
request->op->lock(); |
|
request->op->_request.release(); |
|
request->op->_state |= ASYNC_OPSTATE_RELEASED; |
|
request->op->unlock(); |
|
return_op(request->op); |
|
request->op = 0; |
|
} |
|
return rpl; |
|
} |
|
|
|
|
|
Boolean MessageQueueService::register_service( |
|
String name, |
|
Uint32 capabilities, |
|
Uint32 mask) |
|
{ |
|
RegisterCimService *msg = new RegisterCimService( |
|
0, |
true, | true, |
name, | name, |
capabilities, | capabilities, |
mask, | mask, |
_queueId); | _queueId); |
|
msg->dest = CIMOM_Q_ID; |
|
|
Boolean registered = false; | Boolean registered = false; |
AsyncMessage *reply = SendWait( msg ); |
AsyncReply *reply = static_cast<AsyncReply *>(SendWait(msg)); |
| |
if ( reply != 0 ) | if ( reply != 0 ) |
{ | { |
|
|
{ | { |
if(reply->getMask() & message_mask::ha_reply) | if(reply->getMask() & message_mask::ha_reply) |
{ | { |
if((static_cast<AsyncReply *>(reply))->result == async_results::OK) |
if (reply->result == async_results::OK || |
|
reply->result == async_results::MODULE_ALREADY_REGISTERED) |
|
{ |
registered = true; | registered = true; |
cout << " service registered " << _queueId << endl; |
} |
|
|
} | } |
} | } |
| |
delete reply; | delete reply; |
} | } |
|
delete msg; |
return registered; | return registered; |
} | } |
| |
Boolean MessageQueueService::update_service(Uint32 capabilities, Uint32 mask) | Boolean MessageQueueService::update_service(Uint32 capabilities, Uint32 mask) |
{ | { |
|
UpdateCimService *msg = new UpdateCimService( |
AsyncOpNode *op = _meta_dispatcher->get_cached_op(); |
0, |
op->_state |= ASYNC_OPSTATE_UNKNOWN; |
|
op->_flags |= ASYNC_OPFLAGS_SINGLE | ASYNC_OPFLAGS_NORMAL; |
|
|
|
UpdateCimService *msg = new UpdateCimService(get_next_xid(), |
|
op, |
|
true, | true, |
_queueId, | _queueId, |
_capabilities, | _capabilities, |
_mask); | _mask); |
Boolean registered = false; | Boolean registered = false; |
| |
|
|
AsyncMessage *reply = SendWait(msg); | AsyncMessage *reply = SendWait(msg); |
if (reply) | if (reply) |
{ | { |
|
|
if(reply->getMask() & message_mask::ha_reply) | if(reply->getMask() & message_mask::ha_reply) |
{ | { |
if(static_cast<AsyncReply *>(reply)->result == async_results::OK) | if(static_cast<AsyncReply *>(reply)->result == async_results::OK) |
|
{ |
registered = true; | registered = true; |
} | } |
} | } |
|
} |
delete reply; | delete reply; |
} | } |
|
delete msg; |
return registered; | return registered; |
} | } |
| |
| |
Boolean MessageQueueService::deregister_service(void) |
Boolean MessageQueueService::deregister_service() |
{ | { |
| |
AsyncOpNode *op = _meta_dispatcher->get_cached_op(); |
_meta_dispatcher->deregister_module(_queueId); |
op->_state |= ASYNC_OPSTATE_UNKNOWN; |
return true; |
op->_flags |= ASYNC_OPFLAGS_SINGLE | ASYNC_OPFLAGS_NORMAL; |
|
|
|
DeRegisterCimService *msg = new DeRegisterCimService(get_next_xid(), |
|
op, |
|
true, |
|
_queueId); |
|
Boolean deregistered = false; |
|
|
|
|
|
|
|
return _meta_dispatcher->accept_async(static_cast<Message *>(msg)); |
|
} | } |
| |
| |
void MessageQueueService::find_services(String name, |
void MessageQueueService::find_services( |
|
String name, |
Uint32 capabilities, | Uint32 capabilities, |
Uint32 mask, | Uint32 mask, |
Array<Uint32> *results) | Array<Uint32> *results) |
{ | { |
|
|
if( results == 0 ) | if( results == 0 ) |
|
{ |
throw NullPointer(); | throw NullPointer(); |
|
} |
| |
AsyncOpNode *op = get_op(); |
|
results->clear(); | results->clear(); |
| |
FindServiceQueue *req = |
FindServiceQueue *req = new FindServiceQueue( |
new FindServiceQueue(get_next_xid(), |
0, |
op, |
|
_queueId, | _queueId, |
true, | true, |
name, | name, |
capabilities, | capabilities, |
mask); | mask); |
| |
|
req->dest = CIMOM_Q_ID; |
|
|
AsyncMessage *reply = SendWait(req); | AsyncMessage *reply = SendWait(req); |
if(reply) | if(reply) |
{ | { |
|
|
} | } |
delete reply; | delete reply; |
} | } |
|
delete req; |
return ; | return ; |
} | } |
| |
void MessageQueueService::enumerate_service(Uint32 queue, message_module *result) | void MessageQueueService::enumerate_service(Uint32 queue, message_module *result) |
{ | { |
if(result == 0) | if(result == 0) |
|
{ |
throw NullPointer(); | throw NullPointer(); |
|
} |
| |
AsyncOpNode *op = get_op(); |
EnumerateService *req = new EnumerateService( |
|
0, |
EnumerateService *req |
|
= new EnumerateService(get_next_xid(), |
|
op, |
|
_queueId, | _queueId, |
true, | true, |
queue); | queue); |
|
|
} | } |
delete reply; | delete reply; |
} | } |
|
delete req; |
|
|
return; | return; |
} | } |
| |
Uint32 MessageQueueService::get_next_xid(void) |
MessageQueueService::PollingList* MessageQueueService::_get_polling_list() |
{ | { |
_xid++; |
_polling_list_mutex.lock(); |
return _xid.value(); |
|
|
if (!_polling_list) |
|
_polling_list = new PollingList; |
|
|
|
_polling_list_mutex.unlock(); |
|
|
|
return _polling_list; |
} | } |
| |
PEGASUS_NAMESPACE_END | PEGASUS_NAMESPACE_END |