version 1.9, 2002/02/04 17:37:56
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version 1.131, 2006/11/10 18:14:58
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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) |
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// |
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// Modified By: |
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// |
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//%///////////////////////////////////////////////////////////////////////////// | //%///////////////////////////////////////////////////////////////////////////// |
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#include "MessageQueueService.h" | #include "MessageQueueService.h" |
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#include <Pegasus/Common/Tracer.h> |
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#include <Pegasus/Common/MessageLoader.h> |
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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 MessageQueueService::polling_routine( |
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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_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( |
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Logger::STANDARD_LOG, System::CIMSERVER, Logger::TRACE, |
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"Not enough threads to process this request. " |
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"Skipping."); |
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Tracer::trace(TRC_MESSAGEQUEUESERVICE, Tracer::LEVEL2, |
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"Could not allocate thread for %s. Queue has %d " |
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"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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} |
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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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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), |
_pending(true), |
_threads(0), |
_incoming(true, 1000), |
_incoming(), |
_incoming_queue_shutdown(0), |
_incoming_queue_shutdown(0) |
_req_thread(_req_proc, this, false) |
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{ | { |
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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 ) |
throw NullPointer(); |
{ |
_req_thread.run(); |
_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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// _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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_service_count++; |
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if (false == register_service(name, _capabilities, _mask)) |
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{ |
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MessageLoaderParms parms( |
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"Common.MessageQueueService.UNABLE_TO_REGISTER", |
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"CIM base message queue service is unable to register with the " |
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"CIMOM 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; |
if (_incoming_queue_shutdown.value() == 0 ) |
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_incoming.shutdown_queue(); |
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_req_thread.join(); |
// 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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AtomicInt MessageQueueService::_xid(1); |
// 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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{ |
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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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_stop_polling++; |
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_polling_sem.signal(); |
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if (_polling_thread) |
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{ |
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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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void MessageQueueService::_shutdown_incoming_queue(void) |
delete _thread_pool; |
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_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()) |
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{ |
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try |
{ | { |
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delete _incoming.dequeue(); |
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} |
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catch (const ListClosed&) |
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{ |
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// 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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if (_incoming_queue_shutdown.value() > 0 ) |
void MessageQueueService::_shutdown_incoming_queue() |
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{ |
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if (_incoming_queue_shutdown.get() > 0) |
return ; | return ; |
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AsyncIoctl *msg = new AsyncIoctl(get_next_xid(), |
AsyncIoctl *msg = new AsyncIoctl( |
0, | 0, |
_queueId, | _queueId, |
_queueId, | _queueId, |
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0); | 0); |
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msg->op = get_op(); | msg->op = get_op(); |
msg->op->_request.insert_first(msg); |
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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{ |
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_incoming.enqueue_wait(msg->op); |
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_polling_sem.signal(); |
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} |
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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; |
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} |
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catch (const Permission&) |
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{ |
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delete msg; |
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} |
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} |
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_incoming.insert_last_wait(msg->op); |
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msg->op->_client_sem.wait(); |
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msg->op->lock(); |
void MessageQueueService::enqueue(Message* msg) |
AsyncReply * reply = static_cast<AsyncReply *>(msg->op->_response.remove_first()); |
{ |
reply->op = 0; |
PEG_METHOD_ENTER(TRC_MESSAGEQUEUESERVICE, "MessageQueueService::enqueue()"); |
msg->op->unlock(); |
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delete reply; |
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msg->op->_request.remove(msg); |
Base::enqueue(msg); |
msg->op->_state |= ASYNC_OPSTATE_RELEASED; |
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return_op(msg->op); |
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msg->op = 0; |
PEG_METHOD_EXIT(); |
delete msg; |
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} | } |
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PEGASUS_THREAD_RETURN PEGASUS_THREAD_CDECL MessageQueueService::_req_proc(void * parm) |
ThreadReturnType PEGASUS_THREAD_CDECL MessageQueueService::_req_proc( |
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void* parm) |
{ | { |
Thread *myself = reinterpret_cast<Thread *>(parm); |
MessageQueueService* service = |
MessageQueueService *service = reinterpret_cast<MessageQueueService *>(myself->get_parm()); |
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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} |
// 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 ) |
// many operations may have been queued. |
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do |
{ | { |
try | try |
{ | { |
operation = service->_incoming.remove_first_wait(); |
operation = service->_incoming.dequeue(); |
} | } |
catch(ListClosed & ) | catch(ListClosed & ) |
{ | { |
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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."); |
break; | break; |
} | } |
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if( operation ) | if( operation ) |
{ | { |
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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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service->_handle_incoming_operation(operation, myself, service); |
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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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{ |
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op->_client_sem.signal(); |
} | } |
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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() & MessageMask::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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myself->exit_self( (PEGASUS_THREAD_RETURN) 1 ); |
msg = op->removeResponse(); |
return(0); |
if (msg && (msg->getMask() & MessageMask::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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{ |
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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( |
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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, |
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MessageQueue *queue) |
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{ | { |
if ( operation != 0 ) | if ( operation != 0 ) |
{ | { |
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// ATTN: optimization |
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// << Tue Feb 19 14:10:38 2002 mdd >> |
operation->lock(); | operation->lock(); |
Message *rq = operation->_request.next(0); |
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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() & MessageMask::ha_async))) |
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{ |
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operation->_request.release(); |
operation->unlock(); | 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); |
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} |
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else |
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{ |
PEGASUS_ASSERT(rq != 0 ); | PEGASUS_ASSERT(rq != 0 ); |
PEGASUS_ASSERT(rq->getMask() & message_mask::ha_async ); |
operation->unlock(); |
PEGASUS_ASSERT(rq->getMask() & message_mask::ha_request); |
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static_cast<AsyncMessage *>(rq)->_myself = thread; |
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static_cast<AsyncMessage *>(rq)->_service = queue; |
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_handle_async_request(static_cast<AsyncRequest *>(rq)); | _handle_async_request(static_cast<AsyncRequest *>(rq)); |
} | } |
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} |
return; | return; |
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} | } |
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void MessageQueueService::_handle_async_request(AsyncRequest *req) | void MessageQueueService::_handle_async_request(AsyncRequest *req) |
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} | } |
} | } |
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void MessageQueueService::_make_response(AsyncRequest *req, Uint32 code) |
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Boolean MessageQueueService::_enqueueResponse( |
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Message* request, |
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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() & MessageMask::ha_async) |
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{ |
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if (response->getMask() & MessageMask::ha_async) |
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{ |
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_completeAsyncResponse( |
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static_cast<AsyncRequest *>(request), |
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static_cast<AsyncReply *>(response), |
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ASYNC_OPSTATE_COMPLETE, 0); |
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PEG_METHOD_EXIT(); |
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return true; |
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} |
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} |
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if (request->_async != 0) |
{ | { |
AsyncReply *reply = |
Uint32 mask = request->_async->getMask(); |
new AsyncReply(async_messages::REPLY, |
PEGASUS_ASSERT(mask & |
req->getKey(), |
(MessageMask::ha_async | MessageMask::ha_request)); |
req->getRouting(), |
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0, |
AsyncRequest *async = static_cast<AsyncRequest *>(request->_async); |
req->op, |
AsyncOpNode *op = async->op; |
code, |
request->_async = 0; |
req->resp, |
// the legacy request is going to be deleted by its handler |
false); |
// remove it from the op node |
_completeAsyncResponse(req, reply, ASYNC_OPSTATE_COMPLETE, 0 ); |
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static_cast<AsyncLegacyOperationStart *>(async)->get_action(); |
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|
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AsyncLegacyOperationResult *async_result = |
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new AsyncLegacyOperationResult( |
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op, |
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response); |
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_completeAsyncResponse( |
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async, |
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async_result, |
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ASYNC_OPSTATE_COMPLETE, |
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0); |
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PEG_METHOD_EXIT(); |
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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) |
|
{ |
|
cimom::_make_response(req, code); |
|
} |
| |
void MessageQueueService::_completeAsyncResponse(AsyncRequest *request, |
|
|
void MessageQueueService::_completeAsyncResponse( |
|
AsyncRequest* request, |
AsyncReply *reply, | AsyncReply *reply, |
Uint32 state, | Uint32 state, |
Uint32 flag) | Uint32 flag) |
{ | { |
PEGASUS_ASSERT(request != 0 && reply != 0 ); |
PEG_METHOD_ENTER(TRC_MESSAGEQUEUESERVICE, |
|
"MessageQueueService::_completeAsyncResponse"); |
| |
AsyncOpNode *op = request->op; |
cimom::_completeAsyncResponse(request, reply, state, flag); |
op->lock(); |
|
op->_state |= state ; |
|
op->_flags |= flag; |
|
gettimeofday(&(op->_updated), NULL); |
|
if ( false == op->_response.exists(reinterpret_cast<void *>(reply)) ) |
|
op->_response.insert_last(reply); |
|
op->unlock(); |
|
| |
op->_client_sem.signal(); |
PEG_METHOD_EXIT(); |
|
} |
| |
| |
|
void MessageQueueService::_complete_op_node( |
|
AsyncOpNode* op, |
|
Uint32 state, |
|
Uint32 flag, |
|
Uint32 code) |
|
{ |
|
cimom::_complete_op_node(op, state, flag, code); |
} | } |
| |
| |
|
|
Boolean MessageQueueService::accept_async(AsyncOpNode *op) | Boolean MessageQueueService::accept_async(AsyncOpNode *op) |
{ | { |
if (_incoming_queue_shutdown.value() > 0 ) |
if (_incoming_queue_shutdown.get() > 0) |
return false; | return false; |
|
if (_polling_thread == NULL) |
|
{ |
|
_polling_thread = new Thread( |
|
polling_routine, |
|
reinterpret_cast<void *>(_get_polling_list()), |
|
false); |
|
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(); | op->lock(); |
Message *rq = op->_request.next(0); |
Message *rq = op->_request.get(); |
|
Message *rp = op->_response.get(); |
op->unlock(); | op->unlock(); |
| |
if( true == messageOK(rq) && _die.value() == 0 ) |
if ((rq != 0 && (true == messageOK(rq))) || |
|
(rp != 0 && (true == messageOK(rp))) && _die.get() == 0) |
{ | { |
_incoming.insert_last_wait(op); |
_incoming.enqueue_wait(op); |
|
_polling_sem.signal(); |
return true; | return true; |
} | } |
return false; | return false; |
|
|
| |
Boolean MessageQueueService::messageOK(const Message *msg) | Boolean MessageQueueService::messageOK(const Message *msg) |
{ | { |
if (_incoming_queue_shutdown.value() > 0 ) |
if (_incoming_queue_shutdown.get() > 0) |
return false; | return false; |
|
|
if ( msg != 0 ) |
|
{ |
|
Uint32 mask = msg->getMask(); |
|
if ( mask & message_mask::ha_async) |
|
if ( mask & message_mask::ha_request) |
|
return true; | return true; |
} | } |
return false; |
|
} |
|
|
|
|
|
void MessageQueueService::handleEnqueue(void) |
|
{ |
|
Message *msg = dequeue(); |
|
if( msg ) |
|
{ |
|
delete msg; |
|
} |
|
} |
|
| |
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, |
|
|
| |
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 ) | switch( req->ctl ) |
{ | { |
case AsyncIoctl::IO_CLOSE: | case AsyncIoctl::IO_CLOSE: |
{ | { |
// save my bearings |
MessageQueueService *service = |
Thread *myself = req->_myself; |
static_cast<MessageQueueService *>(req->op->_service_ptr); |
MessageQueueService *service = static_cast<MessageQueueService *>(req->_service); |
|
| |
// respond to this message. |
#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 do not accept any further messages |
| |
// ensure we don't recurse on IO_CLOSE | // ensure we don't recurse on IO_CLOSE |
if( _incoming_queue_shutdown.value() > 0 ) |
if (_incoming_queue_shutdown.get() > 0) |
break; | break; |
| |
// set the closing flag | // set the closing flag |
|
|
AsyncOpNode *operation; | AsyncOpNode *operation; |
try | try |
{ | { |
operation = service->_incoming.remove_first(); |
operation = service->_incoming.dequeue(); |
} | } |
catch(IPCException & ) | catch(IPCException & ) |
{ | { |
|
|
} | } |
if( operation ) | if( operation ) |
{ | { |
service->_handle_incoming_operation(operation, myself, service); |
operation->_service_ptr = service; |
|
service->_handle_incoming_operation(operation); |
} | } |
else | else |
break; | break; |
} // message processing loop | } // message processing loop |
| |
// shutdown the AsyncDQueue |
// shutdown the AsyncQueue |
service->_incoming.shutdown_queue(); |
service->_incoming.close(); |
// exit the thread ! |
|
myself->exit_self( (PEGASUS_THREAD_RETURN) 1 ); |
|
return; | return; |
} | } |
| |
|
|
| |
void MessageQueueService::handle_CimServiceStart(CimServiceStart *req) | void MessageQueueService::handle_CimServiceStart(CimServiceStart *req) |
{ | { |
_make_response(req, async_results::CIM_NAK); |
#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) |
|
|
void MessageQueueService::handle_AsyncLegacyOperationStart( |
|
AsyncLegacyOperationStart* req) |
|
{ |
|
// remove the legacy message from the request and enqueue it to its |
|
// destination |
|
Uint32 result = async_results::CIM_NAK; |
|
|
|
Message* legacy = req->_act; |
|
if (legacy != 0) |
|
{ |
|
MessageQueue* queue = MessageQueue::lookup(req->_legacy_destination); |
|
if (queue != 0) |
|
{ |
|
if (queue->isAsync() == true) |
|
{ |
|
(static_cast<MessageQueueService *>(queue))->handleEnqueue( |
|
legacy); |
|
} |
|
else |
|
{ |
|
// Enqueue the response: |
|
queue->enqueue(req->get_action()); |
|
} |
|
|
|
result = async_results::OK; |
|
} |
|
} |
|
_make_response(req, result); |
|
} |
|
|
|
void MessageQueueService::handle_AsyncLegacyOperationResult( |
|
AsyncLegacyOperationResult* rep) |
|
{ |
|
} |
|
|
|
AsyncOpNode* MessageQueueService::get_op() |
{ | { |
AsyncOpNode *op = new AsyncOpNode(); | AsyncOpNode *op = new AsyncOpNode(); |
| |
|
|
| |
void MessageQueueService::return_op(AsyncOpNode *op) | void MessageQueueService::return_op(AsyncOpNode *op) |
{ | { |
PEGASUS_ASSERT(op->read_state() & ASYNC_OPSTATE_RELEASED ); |
PEGASUS_ASSERT(op->_state & ASYNC_OPSTATE_RELEASED); |
delete op; | delete op; |
} | } |
| |
| |
|
Boolean MessageQueueService::SendAsync( |
|
AsyncOpNode* op, |
|
Uint32 destination, |
|
void (*callback)(AsyncOpNode*, MessageQueue*, void*), |
|
MessageQueue* callback_response_q, |
|
void* callback_ptr) |
|
{ |
|
PEGASUS_ASSERT(op != 0 && callback != 0); |
|
|
|
// get the queue handle for the destination |
|
|
|
op->lock(); |
|
// destination of this message |
|
op->_op_dest = MessageQueue::lookup(destination); |
|
op->_flags |= ASYNC_OPFLAGS_CALLBACK; |
|
op->_flags &= ~(ASYNC_OPFLAGS_FIRE_AND_FORGET); |
|
// initialize the callback data |
|
// callback function to be executed by recpt. of response |
|
op->_async_callback = callback; |
|
// the op node |
|
op->_callback_node = op; |
|
// the queue that will receive the response |
|
op->_callback_response_q = callback_response_q; |
|
// user data for callback |
|
op->_callback_ptr = callback_ptr; |
|
// I am the originator of this request |
|
op->_callback_request_q = this; |
|
|
|
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(); |
|
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; |
|
|
|
if (!(msg->getMask() & MessageMask::ha_async)) |
|
{ |
|
AsyncLegacyOperationStart *wrapper = new AsyncLegacyOperationStart( |
|
op, |
|
destination, |
|
msg, |
|
destination); |
|
} |
|
else |
|
{ |
|
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 & MessageMask::ha_async) |
|
{ |
|
op = (static_cast<AsyncMessage *>(msg))->op; |
|
} |
|
|
|
if (op == 0) |
|
{ |
|
op = get_op(); |
|
op->_request.reset(msg); |
|
if (mask & MessageMask::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(); |
|
return_op(op); |
|
return false; |
|
} |
|
|
|
// now see if the meta dispatcher will take it |
|
return _meta_dispatcher->route_async(op); |
|
} |
|
|
| |
AsyncReply *MessageQueueService::SendWait(AsyncRequest *request) | AsyncReply *MessageQueueService::SendWait(AsyncRequest *request) |
{ | { |
|
|
| |
Boolean destroy_op = false; | Boolean destroy_op = false; |
| |
if (request->op == false) |
if (request->op == 0) |
{ | { |
request->op = get_op(); | request->op = get_op(); |
request->op->_request.insert_first(request); |
request->op->_request.reset(request); |
destroy_op = true; | destroy_op = true; |
} | } |
| |
request->block = true; |
request->block = false; |
request->op->_state &= ~ASYNC_OPSTATE_COMPLETE; |
request->op->_flags |= ASYNC_OPFLAGS_PSEUDO_CALLBACK; |
request->op->put_response(0); |
SendAsync( |
|
request->op, |
// first link it on our pending list |
request->dest, |
// _pending.insert_last_wait(request->op); |
_sendwait_callback, |
|
this, |
|
(void *)0); |
| |
// now see if the meta dispatcher will take it |
|
|
|
if (true == _meta_dispatcher->route_async(request->op)) |
|
{ |
|
request->op->_client_sem.wait(); | request->op->_client_sem.wait(); |
PEGASUS_ASSERT(request->op->_state & ASYNC_OPSTATE_COMPLETE); |
|
| |
} |
AsyncReply* rpl = static_cast<AsyncReply *>(request->op->removeResponse()); |
|
|
request->op->lock(); |
|
AsyncReply * rpl = static_cast<AsyncReply *>(request->op->_response.remove_first()); |
|
rpl->op = 0; | rpl->op = 0; |
request->op->unlock(); |
|
| |
if( destroy_op == true) | if( destroy_op == true) |
{ | { |
request->op->lock(); | request->op->lock(); |
request->op->_request.remove(request); |
request->op->_request.release(); |
request->op->_state |= ASYNC_OPSTATE_RELEASED; | request->op->_state |= ASYNC_OPSTATE_RELEASED; |
request->op->unlock(); | request->op->unlock(); |
|
|
return_op(request->op); | return_op(request->op); |
request->op = 0; | request->op = 0; |
} | } |
|
|
return rpl; | return rpl; |
} | } |
| |
| |
Boolean MessageQueueService::register_service(String name, |
Boolean MessageQueueService::register_service( |
|
String name, |
Uint32 capabilities, | Uint32 capabilities, |
Uint32 mask) | Uint32 mask) |
|
|
{ | { |
RegisterCimService *msg = new RegisterCimService(get_next_xid(), |
RegisterCimService *msg = new RegisterCimService( |
0, | 0, |
true, | true, |
name, | name, |
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 )); |
| |
if ( reply != 0 ) | if ( reply != 0 ) |
{ | { |
if(reply->getMask() & message_mask:: ha_async) |
if (reply->getMask() & MessageMask::ha_async) |
|
{ |
|
if (reply->getMask() & MessageMask::ha_reply) |
{ | { |
if(reply->getMask() & message_mask::ha_reply) |
if (reply->result == async_results::OK || |
|
reply->result == async_results::MODULE_ALREADY_REGISTERED) |
{ | { |
if(reply->result == async_results::OK) |
|
registered = true; | registered = true; |
} | } |
} | } |
|
} |
| |
delete reply; | delete reply; |
} | } |
|
|
| |
Boolean MessageQueueService::update_service(Uint32 capabilities, Uint32 mask) | Boolean MessageQueueService::update_service(Uint32 capabilities, Uint32 mask) |
{ | { |
|
UpdateCimService *msg = new UpdateCimService( |
|
|
UpdateCimService *msg = new UpdateCimService(get_next_xid(), |
|
0, | 0, |
true, | true, |
_queueId, | _queueId, |
|
|
AsyncMessage *reply = SendWait(msg); | AsyncMessage *reply = SendWait(msg); |
if (reply) | if (reply) |
{ | { |
if(reply->getMask() & message_mask:: ha_async) |
if (reply->getMask() & MessageMask::ha_async) |
{ | { |
if(reply->getMask() & message_mask::ha_reply) |
if (reply->getMask() & MessageMask::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; | delete msg; |
|
|
} | } |
| |
| |
Boolean MessageQueueService::deregister_service(void) |
Boolean MessageQueueService::deregister_service() |
{ | { |
|
|
_meta_dispatcher->deregister_module(_queueId); | _meta_dispatcher->deregister_module(_queueId); |
return true; | return true; |
} | } |
| |
| |
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(); |
|
} |
| |
results->clear(); | results->clear(); |
| |
FindServiceQueue *req = |
FindServiceQueue *req = new FindServiceQueue( |
new FindServiceQueue(get_next_xid(), |
|
0, | 0, |
_queueId, | _queueId, |
true, | true, |
|
|
capabilities, | capabilities, |
mask); | mask); |
| |
|
req->dest = CIMOM_Q_ID; |
|
|
AsyncMessage *reply = SendWait(req); | AsyncMessage *reply = SendWait(req); |
if(reply) | if(reply) |
{ | { |
if( reply->getMask() & message_mask::ha_async) |
if (reply->getMask() & MessageMask::ha_async) |
{ | { |
if(reply->getMask() & message_mask::ha_reply) |
if (reply->getMask() & MessageMask::ha_reply) |
{ | { |
if(reply->getType() == async_messages::FIND_SERVICE_Q_RESULT) | if(reply->getType() == async_messages::FIND_SERVICE_Q_RESULT) |
{ | { |
if( (static_cast<FindServiceQueueResult *>(reply))->result == async_results::OK ) |
if ((static_cast<FindServiceQueueResult*>(reply))->result == |
*results = (static_cast<FindServiceQueueResult *>(reply))->qids; |
async_results::OK) |
|
*results = |
|
(static_cast<FindServiceQueueResult*>(reply))->qids; |
} | } |
} | } |
} | } |
delete reply; | delete reply; |
} | } |
delete req; | delete req; |
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(); |
|
} |
| |
EnumerateService *req |
EnumerateService *req = new EnumerateService( |
= new EnumerateService(get_next_xid(), |
|
0, | 0, |
_queueId, | _queueId, |
true, | true, |
|
|
{ | { |
Boolean found = false; | Boolean found = false; |
| |
if( reply->getMask() & message_mask::ha_async) |
if (reply->getMask() & MessageMask::ha_async) |
{ | { |
if(reply->getMask() & message_mask::ha_reply) |
if (reply->getMask() & MessageMask::ha_reply) |
{ | { |
if(reply->getType() == async_messages::ENUMERATE_SERVICE_RESULT) |
if (reply->getType() == |
|
async_messages::ENUMERATE_SERVICE_RESULT) |
{ | { |
if( (static_cast<EnumerateServiceResponse *>(reply))->result == async_results::OK ) |
if ((static_cast<EnumerateServiceResponse*>(reply))-> |
|
result == async_results::OK) |
{ | { |
if( found == false) | if( found == false) |
{ | { |
found = true; | found = true; |
| |
result->put_name( (static_cast<EnumerateServiceResponse *>(reply))->name); |
result->put_name((static_cast< |
result->put_capabilities((static_cast<EnumerateServiceResponse *>(reply))->capabilities); |
EnumerateServiceResponse*>(reply))->name); |
result->put_mask((static_cast<EnumerateServiceResponse *>(reply))->mask); |
result->put_capabilities((static_cast< |
result->put_queue((static_cast<EnumerateServiceResponse *>(reply))->qid); |
EnumerateServiceResponse*>(reply))-> |
|
capabilities); |
|
result->put_mask((static_cast< |
|
EnumerateServiceResponse*>(reply))->mask); |
|
result->put_queue((static_cast< |
|
EnumerateServiceResponse*>(reply))->qid); |
} | } |
} | } |
} | } |
|
|
delete reply; | delete reply; |
} | } |
delete req; | delete req; |
|
|
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 |