pegasus/src/Pegasus/Common/MessageQueueService.cpp - diff

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Diff for /pegasus/src/Pegasus/Common/MessageQueueService.cpp between version 1.112 and 1.146

version 1.112, 2005/06/14 17:10:37

version 1.146, 2008/10/14 17:25:58

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//%2005////////////////////////////////////////////////////////////////////////

//%2006////////////////////////////////////////////////////////////////////////

// Company, L.P.; IBM Corp.; The Open Group; Tivoli Systems.

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// IBM Corp.; EMC Corporation; VERITAS Software Corporation; The Open Group.

// EMC Corporation; VERITAS Software Corporation; The Open Group.

// EMC Corporation; Symantec Corporation; The Open Group.

// Permission is hereby granted, free of charge, to any person obtaining a copy

// of this software and associated documentation files (the "Software"), to

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//==============================================================================

// Author: Mike Day (mdday@us.ibm.com)

// Modified By:

// Amit K Arora, IBM (amita@in.ibm.com) for Bug#1090,#2657

// Josephine Eskaline Joyce, IBM (jojustin@in.ibm.com) for Bug#3259

//%/////////////////////////////////////////////////////////////////////////////

// #include <iostream.h>

#include "MessageQueueService.h"

#include <Pegasus/Common/Tracer.h>

#include <Pegasus/Common/MessageLoader.h> //l10n

#include <Pegasus/Common/MessageLoader.h>

PEGASUS_NAMESPACE_BEGIN

cimom *MessageQueueService::_meta_dispatcher = 0;

AtomicInt MessageQueueService::_service_count = 0;

AtomicInt MessageQueueService::_service_count(0);

AtomicInt MessageQueueService::_xid(1);

Mutex MessageQueueService::_meta_dispatcher_mutex;

static struct timeval deallocateWait = {300, 0};

ThreadPool *MessageQueueService::_thread_pool = 0;

DQueue<MessageQueueService> MessageQueueService::_polling_list(true);

MessageQueueService::PollingList* MessageQueueService::_polling_list;

Mutex MessageQueueService::_polling_list_mutex;

Thread* MessageQueueService::_polling_thread = 0;

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{

return _thread_pool;

}

// MAX_THREADS_PER_SVC_QUEUE_LIMIT

// MAX_THREADS_PER_SVC_QUEUE

// 5000 is seriously too high a number for the limit but since

// previously there was no limit at all this is intended to approximate

// that behavior. In my testing on a unit processor system the system

// behaved best with a low number 2 to 5 for the MAX_THREADS_PER_SVC_QUEUE.

// When set to 1000 the system deadlocked with indications that were

// not delivered and apparently left sitting within the server in a queue.

// JR Wunderlich Jun 6, 2005

#define MAX_THREADS_PER_SVC_QUEUE_LIMIT 5000

#define MAX_THREADS_PER_SVC_QUEUE_DEFAULT 5

Uint32 max_threads_per_svc_queue;

#ifndef MAX_THREADS_PER_SVC_QUEUE

# define MAX_THREADS_PER_SVC_QUEUE MAX_THREADS_PER_SVC_QUEUE_DEFAULT

PEGASUS_THREAD_RETURN PEGASUS_THREAD_CDECL

MessageQueueService::kill_idle_threads(void *parm)

{

static struct timeval now, last = {0,0};

gettimeofday(&now, NULL);

int dead_threads = 0;

if (now.tv_sec - last.tv_sec > 120)

{

gettimeofday(&last, NULL);

try

{

dead_threads = MessageQueueService::_thread_pool->cleanupIdleThreads();

}

catch(...)

{

}

#ifdef PEGASUS_POINTER_64BIT

return (PEGASUS_THREAD_RETURN)(Uint64)dead_threads;

#elif PEGASUS_PLATFORM_AIX_RS_IBMCXX

return (PEGASUS_THREAD_RETURN)(unsigned long)dead_threads;

#else

return (PEGASUS_THREAD_RETURN)(Uint32)dead_threads;

#endif

}

PEGASUS_THREAD_RETURN PEGASUS_THREAD_CDECL MessageQueueService::polling_routine(void *parm)

Uint32 max_threads_per_svc_queue;

ThreadReturnType PEGASUS_THREAD_CDECL MessageQueueService::polling_routine(

void* parm)

{

Thread *myself = reinterpret_cast<Thread *>(parm);

DQueue<MessageQueueService> *list = reinterpret_cast<DQueue<MessageQueueService> *>(myself->get_parm());

List<MessageQueueService, Mutex> *list =

while (_stop_polling.value() == 0)

reinterpret_cast<List<MessageQueueService, Mutex>*>(myself->get_parm());

while (_stop_polling.get() == 0)

{

_polling_sem.wait();

if (_stop_polling.value() != 0)

if (_stop_polling.get() != 0)

{

break;

}

// The polling_routine thread must hold the lock on the

// _polling_list while processing incoming messages.

// This lock is used to give this thread ownership of

// services on the _polling_routine list.

// This is necessary to avoid confict with other threads

// processing the _polling_list

// (e.g., MessageQueueServer::~MessageQueueService).

list->lock();

int list_index = 0;

MessageQueueService *service = list->front();

MessageQueueService *service = list->next(0);

ThreadStatus rtn = PEGASUS_THREAD_OK;

while(service != NULL)

{

int rtn;

if ((service->_incoming.count() > 0) &&

rtn = true;

(service->_die.get() == 0) &&

if (service->_incoming.count() > 0

(service->_threads.get() < max_threads_per_svc_queue))

&& service->_die.value() == 0

{

&& service->_threads <= max_threads_per_svc_queue)

// The _threads count is used to track the

rtn = _thread_pool->allocate_and_awaken(service, _req_proc,

// number of active threads that have been allocated

&_polling_sem);

// to process messages for this service.

// The _threads count MUST be incremented while

// the polling_routine owns the _polling_thread

// lock and has ownership of the service object.

service->_threads++;

try

{

rtn = _thread_pool->allocate_and_awaken(

service, _req_proc, &_polling_sem);

}

catch (...)

{

service->_threads--;

// allocate_and_awaken should never generate an exception.

PEGASUS_ASSERT(0);

}

// if no more threads available, break from processing loop

if (rtn == false)

if (rtn != PEGASUS_THREAD_OK )

{

service->_threads--;

PEG_TRACE((TRC_MESSAGEQUEUESERVICE, Tracer::LEVEL1,

"Could not allocate thread for %s. Queue has %d "

"messages waiting and %d threads servicing."

"Skipping the service for right now. ",

service->getQueueName(),

service->_incoming.count(),

service->_threads.get()));

Threads::yield();

service = NULL;

}

else

}

if (service != NULL)

{

service = list->next(service);

service = list->next_of(service);

}

list->unlock();

if (_check_idle_flag.value() != 0)

{

_check_idle_flag = 0;

// try to do idle thread clean up processing when system is not busy

// if system is busy there may not be a thread available to allocate

// so nothing will be done and that is OK.

_thread_pool->allocate_and_awaken(service, kill_idle_threads, &_polling_sem);

}

myself->exit_self( (PEGASUS_THREAD_RETURN) 1 );

return ThreadReturnType(0);

return(0);

}

Semaphore MessageQueueService::_polling_sem(0);

AtomicInt MessageQueueService::_stop_polling(0);

AtomicInt MessageQueueService::_check_idle_flag(0);

MessageQueueService::MessageQueueService(

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_mask(mask),

_die(0),

_threads(0),

_incoming(true, 0),

_incoming(),

_incoming_queue_shutdown(0)

{

_capabilities = (capabilities | module_capabilities::async);

_default_op_timeout.tv_sec = 30;

_default_op_timeout.tv_usec = 100;

max_threads_per_svc_queue = MAX_THREADS_PER_SVC_QUEUE;

// if requested threads gt MAX_THREADS_PER_SVC_QUEUE_LIMIT

// if requested thread max is out of range, then set to

// then set to MAX_THREADS_PER_SVC_QUEUE_LIMIT

// MAX_THREADS_PER_SVC_QUEUE_LIMIT

if (max_threads_per_svc_queue > MAX_THREADS_PER_SVC_QUEUE_LIMIT)

{

max_threads_per_svc_queue = MAX_THREADS_PER_SVC_QUEUE_LIMIT;

}

// if requested threads eq 0 (unlimited)

// then set to MAX_THREADS_PER_SVC_QUEUE_LIMIT

if (max_threads_per_svc_queue == 0)

if ((max_threads_per_svc_queue < 1) ||

(max_threads_per_svc_queue > MAX_THREADS_PER_SVC_QUEUE_LIMIT))

{

max_threads_per_svc_queue = MAX_THREADS_PER_SVC_QUEUE_LIMIT;

}

// cout << "MAX_THREADS_PER_SVC_QUEUE = " << MAX_THREADS_PER_SVC_QUEUE << endl;

PEG_TRACE((TRC_MESSAGEQUEUESERVICE, Tracer::LEVEL3,

// cout << "max_threads_per_svc_queue set to = " << max_threads_per_svc_queue << endl;

"max_threads_per_svc_queue set to %u.", max_threads_per_svc_queue));

AutoMutex autoMut(_meta_dispatcher_mutex);

if (_meta_dispatcher == 0)

{

_stop_polling = 0;

PEGASUS_ASSERT(_service_count.value() == 0);

PEGASUS_ASSERT(_service_count.get() == 0);

_meta_dispatcher = new cimom();

if (_meta_dispatcher == NULL)

{

throw NullPointer();

}

// _thread_pool = new ThreadPool(initial_cnt, "MessageQueueService",

// minimum_cnt, maximum_cnt, deallocateWait);

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}

_service_count++;

if (false == register_service(name, _capabilities, _mask))

_get_polling_list()->insert_back(this);

{

//l10n

//throw BindFailedException("MessageQueueService Base Unable to register with Meta Dispatcher");

MessageLoaderParms parms("Common.MessageQueueService.UNABLE_TO_REGISTER",

"MessageQueueService Base Unable to register with Meta Dispatcher");

throw BindFailedException(parms);

}

_polling_list.insert_last(this);

}

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{

_die = 1;

if (_incoming_queue_shutdown.value() == 0)

// The polling_routine locks the _polling_list while

// processing the incoming messages for services on the

// list. Deleting the service from the _polling_list

// prior to processing, avoids synchronization issues

// with the _polling_routine.

// ATTN: added to prevent assertion in List in which the list does not

// contain this element.

if (_get_polling_list()->contains(this))

_get_polling_list()->remove(this);

// ATTN: The code for closing the _incoming queue

// is not working correctly. In OpenPegasus 2.5,

// execution of the following code is very timing

// dependent. This needs to be fix.

// See Bug 4079 for details.

if (_incoming_queue_shutdown.get() == 0)

{

_shutdown_incoming_queue();

}

while (_threads.value() > 0)

// Wait until all threads processing the messages

// for this service have completed.

while (_threads.get() > 0)

{

pegasus_yield();

Threads::yield();

}

_polling_list.remove(this);

{

AutoMutex autoMut(_meta_dispatcher_mutex);

_service_count--;

if (_service_count.value() == 0)

if (_service_count.get() == 0)

{

_stop_polling++;

_polling_sem.signal();

if (_polling_thread) {

if (_polling_thread)

{

_polling_thread->join();

delete _polling_thread;

_polling_thread = 0;

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_thread_pool = 0;

}

} // mutex unlocks here

// Clean up in case there are extra stuff on the queue.

while (_incoming.count())

// Clean up any extra stuff on the queue.

{

AsyncOpNode* op = 0;

try {

while ((op = _incoming.dequeue()))

delete _incoming.remove_first();

} catch (const ListClosed &e)

{

// If the list is closed, there is nothing we can do.

delete op;

break;

}

void MessageQueueService::_shutdown_incoming_queue()

{

if (_incoming_queue_shutdown.value() > 0)

if (_incoming_queue_shutdown.get() > 0)

return;

AsyncIoctl *msg = new AsyncIoctl(

get_next_xid(),

_queueId,

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msg->op->_state &= ~ASYNC_OPSTATE_COMPLETE;

msg->op->_op_dest = this;

msg->op->_request.insert_first(msg);

msg->op->_request.reset(msg);

try {

if (_incoming.enqueue(msg->op))

_incoming.insert_last_wait(msg->op);

{

_polling_sem.signal();

} catch (const ListClosed &)

}

else

{

// This means the queue has already been shut-down (happens when there

// are two AsyncIoctrl::IO_CLOSE messages generated and one got first

// processed.

delete msg;

}

catch (const Permission &)

{

delete msg;

}

void MessageQueueService::enqueue(Message *msg)

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}

PEGASUS_THREAD_RETURN PEGASUS_THREAD_CDECL MessageQueueService::_req_proc(

ThreadReturnType PEGASUS_THREAD_CDECL MessageQueueService::_req_proc(

void * parm)

{

MessageQueueService* service =

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PEGASUS_ASSERT(service != 0);

try

{

if (service->_die.get() != 0)

if (service->_die.value() != 0)

{

return (0);

service->_threads--;

return 0;

}

service->_threads++;

// pull messages off the incoming queue and dispatch them. then

// check pending messages that are non-blocking

AsyncOpNode *operation = 0;

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// many operations may have been queued.

{

try

operation = service->_incoming.dequeue();

{

operation = service->_incoming.remove_first();

}

catch (ListClosed &)

{

// ATTN: This appears to be a common loop exit path.

//PEG_TRACE_STRING(TRC_DISCARDED_DATA, Tracer::LEVEL2,

// "Caught ListClosed exception. Exiting _req_proc.");

break;

}

if (operation)

{

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}

catch (const Exception& e)

{

PEG_TRACE_STRING(TRC_DISCARDED_DATA, Tracer::LEVEL2,

PEG_TRACE((TRC_DISCARDED_DATA, Tracer::LEVEL1,

String("Caught exception: \"") + e.getMessage() +

"Caught exception: \"%s\". Exiting _req_proc.",

"\". Exiting _req_proc.");

(const char*)e.getMessage().getCString()));

}

catch (...)

{

PEG_TRACE_STRING(TRC_DISCARDED_DATA, Tracer::LEVEL2,

PEG_TRACE_CSTRING(TRC_DISCARDED_DATA, Tracer::LEVEL1,

"Caught unrecognized exception. Exiting _req_proc.");

}

service->_threads--;

return(0);

return 0;

}

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{

if (op->_flags & ASYNC_OPFLAGS_SAFE_CALLBACK)

{

Message *msg = op->removeRequest();

Message *msg = op->get_request();

if (msg && (msg->getMask() & MessageMask::ha_async))

if (msg && (msg->getMask() & message_mask::ha_async))

{

if (msg->getType() == async_messages::ASYNC_LEGACY_OP_START)

if (msg->getType() == ASYNC_ASYNC_LEGACY_OP_START)

{

AsyncLegacyOperationStart *wrapper =

static_cast<AsyncLegacyOperationStart *>(msg);

msg = wrapper->get_action();

delete wrapper;

}

else if (msg->getType() == async_messages::ASYNC_MODULE_OP_START)

else if (msg->getType() == ASYNC_ASYNC_MODULE_OP_START)

{

AsyncModuleOperationStart *wrapper =

static_cast<AsyncModuleOperationStart *>(msg);

msg = wrapper->get_action();

delete wrapper;

}

else if (msg->getType() == async_messages::ASYNC_OP_START)

else if (msg->getType() == ASYNC_ASYNC_OP_START)

{

AsyncOperationStart *wrapper =

static_cast<AsyncOperationStart *>(msg);

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delete msg;

}

msg = op->get_response();

msg = op->removeResponse();

if (msg && (msg->getMask() & message_mask::ha_async))

if (msg && (msg->getMask() & MessageMask::ha_async))

{

if (msg->getType() == async_messages::ASYNC_LEGACY_OP_RESULT)

if (msg->getType() == ASYNC_ASYNC_LEGACY_OP_RESULT)

{

AsyncLegacyOperationResult *wrapper =

static_cast<AsyncLegacyOperationResult *>(msg);

msg = wrapper->get_result();

delete wrapper;

}

else if (msg->getType() == async_messages::ASYNC_MODULE_OP_RESULT)

else if (msg->getType() == ASYNC_ASYNC_MODULE_OP_RESULT)

{

AsyncModuleOperationResult *wrapper =

static_cast<AsyncModuleOperationResult *>(msg);

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// note that _callback_node may be different from op

// op->_callback_response_q is a "this" pointer we can use for

// static callback methods

op->_async_callback(op->_callback_node, op->_callback_response_q, op->_callback_ptr);

op->_async_callback(

op->_callback_node, op->_callback_response_q, op->_callback_ptr);

}

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// << Tue Feb 19 14:10:38 2002 mdd >>

operation->lock();

Message *rq = operation->_request.next(0);

Message *rq = operation->_request.get();

// optimization <<< Thu Mar 7 21:04:05 2002 mdd >>>

// move this to the bottom of the loop when the majority of

// messages become async messages.

// divert legacy messages to handleEnqueue

if ((rq != 0) && (!(rq->getMask() & message_mask::ha_async)))

if ((rq != 0) && (!(rq->getMask() & MessageMask::ha_async)))

{

rq = operation->_request.remove_first() ;

operation->_request.release();

operation->unlock();

// delete the op node

operation->release();

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{

req->op->processing();

Uint32 type = req->getType();

MessageType type = req->getType();

if (type == async_messages::HEARTBEAT)

if (type == ASYNC_IOCTL)

handle_heartbeat_request(req);

else if (type == async_messages::IOCTL)

handle_AsyncIoctl(static_cast<AsyncIoctl *>(req));

else if (type == async_messages::CIMSERVICE_START)

else if (type == ASYNC_CIMSERVICE_START)

handle_CimServiceStart(static_cast<CimServiceStart *>(req));

else if (type == async_messages::CIMSERVICE_STOP)

else if (type == ASYNC_CIMSERVICE_STOP)

handle_CimServiceStop(static_cast<CimServiceStop *>(req));

else if (type == async_messages::CIMSERVICE_PAUSE)

handle_CimServicePause(static_cast<CimServicePause *>(req));

else if (type == async_messages::CIMSERVICE_RESUME)

handle_CimServiceResume(static_cast<CimServiceResume *>(req));

else if (type == async_messages::ASYNC_OP_START)

handle_AsyncOperationStart(static_cast<AsyncOperationStart *>(req));

else

{

// we don't handle this request message

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Message* request,

Message* response)

{

STAT_COPYDISPATCHER

PEG_METHOD_ENTER(TRC_MESSAGEQUEUESERVICE,

"MessageQueueService::_enqueueResponse");

if (request->getMask() & message_mask::ha_async)

if (request->getMask() & MessageMask::ha_async)

{

if (response->getMask() & message_mask::ha_async)

if (response->getMask() & MessageMask::ha_async)

{

_completeAsyncResponse(static_cast<AsyncRequest *>(request),

_completeAsyncResponse(

static_cast<AsyncRequest *>(request),

static_cast<AsyncReply *>(response),

ASYNC_OPSTATE_COMPLETE, 0);

PEG_METHOD_EXIT();

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}

if (request->_async != 0)

AsyncRequest* asyncRequest =

static_cast<AsyncRequest*>(request->get_async());

if (asyncRequest != 0)

{

Uint32 mask = request->_async->getMask();

PEGASUS_ASSERT(asyncRequest->getMask() &

PEGASUS_ASSERT(mask & (message_mask::ha_async | message_mask::ha_request));

(MessageMask::ha_async | MessageMask::ha_request));

AsyncOpNode* op = asyncRequest->op;

AsyncRequest *async = static_cast<AsyncRequest *>(request->_async);

AsyncOpNode *op = async->op;

request->_async = 0;

// the legacy request is going to be deleted by its handler

// remove it from the op node

static_cast<AsyncLegacyOperationStart *>(async)->get_action();

static_cast<AsyncLegacyOperationStart *>(asyncRequest)->get_action();

AsyncLegacyOperationResult *async_result =

new AsyncLegacyOperationResult(

async->getKey(),

async->getRouting(),

op,

response);

_completeAsyncResponse(

async,

asyncRequest,

async_result,

ASYNC_OPSTATE_COMPLETE,

0);

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// ensure that the destination queue is in response->dest

PEG_METHOD_EXIT();

return SendForget(response);

}

void MessageQueueService::_make_response(Message *req, Uint32 code)

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Boolean MessageQueueService::accept_async(AsyncOpNode *op)

{

if (_incoming_queue_shutdown.value() > 0)

if (_incoming_queue_shutdown.get() > 0)

return false;

if (_polling_thread == NULL)

{

_polling_thread = new Thread(

polling_routine,

reinterpret_cast<void *>(&_polling_list),

reinterpret_cast<void *>(_get_polling_list()),

false);

while (!_polling_thread->run())

ThreadStatus tr = PEGASUS_THREAD_OK;

while ( (tr =_polling_thread->run()) != PEGASUS_THREAD_OK)

{

pegasus_yield();

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.next(0);

Message *rq = op->_request.get();

Message *rp = op->_response.next(0);

Message *rp = op->_response.get();

op->unlock();

if ((rq != 0 && (true == messageOK(rq))) ||

(rp != 0 && (true == messageOK(rp))) && _die.value() == 0)

(rp != 0 && (true == messageOK(rp))) && _die.get() == 0)

{

if (_incoming.enqueue(op))

{

_incoming.insert_last_wait(op);

_polling_sem.signal();

return true;

}

return false;

}

Boolean MessageQueueService::messageOK(const Message *msg)

{

if (_incoming_queue_shutdown.value() > 0)

if (_incoming_queue_shutdown.get() > 0)

return false;

return true;

}

void MessageQueueService::handle_heartbeat_request(AsyncRequest *req)

{

// default action is to echo a heartbeat response

AsyncReply *reply = new AsyncReply(

async_messages::HEARTBEAT,

req->getKey(),

req->getRouting(),

req->op,

async_results::OK,

req->resp,

false);

_completeAsyncResponse(req, reply, ASYNC_OPSTATE_COMPLETE, 0);

}

void MessageQueueService::handle_heartbeat_reply(AsyncReply *rep)

{

}

void MessageQueueService::handle_AsyncIoctl(AsyncIoctl *req)

{

switch (req->ctl)

{

case AsyncIoctl::IO_CLOSE:

{

MessageQueueService *service = static_cast<MessageQueueService *>(req->op->_service_ptr);

MessageQueueService *service =

static_cast<MessageQueueService *>(req->op->_service_ptr);

#ifdef MESSAGEQUEUESERVICE_DEBUG

PEGASUS_STD(cout) << service->getQueueName() << " Received AsyncIoctl::IO_CLOSE " << PEGASUS_STD(endl);

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.

// 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);

// ensure we do not accept any further messages

// ensure we don't recurse on IO_CLOSE

if (_incoming_queue_shutdown.value() > 0)

if (_incoming_queue_shutdown.get() > 0)

break;

// set the closing flag

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// empty out the queue

while (1)

{

AsyncOpNode *operation;

AsyncOpNode* operation = 0;

try

{

operation = service->_incoming.remove_first();

operation = service->_incoming.dequeue();

}

catch(IPCException &)

catch (...)

{

break;

}

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break;

} // message processing loop

// shutdown the AsyncDQueue

// shutdown the AsyncQueue

service->_incoming.shutdown_queue();

service->_incoming.close();

return;

}

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void MessageQueueService::handle_CimServiceStart(CimServiceStart *req)

{

#ifdef MESSAGEQUEUESERVICE_DEBUG

PEGASUS_STD(cout) << getQueueName() << "received START" << PEGASUS_STD(endl);

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)

{

#ifdef MESSAGEQUEUESERVICE_DEBUG

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// 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)

{

// 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)

{

// 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)

{

_make_response(req, async_results::CIM_NAK);

}

void MessageQueueService::handle_AsyncOperationResult(AsyncOperationResult *req)

{

;

}

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()

Line 849

Line 728

void MessageQueueService::return_op(AsyncOpNode *op)

{

PEGASUS_ASSERT(op->read_state() & ASYNC_OPSTATE_RELEASED);

PEGASUS_ASSERT(op->_state & ASYNC_OPSTATE_RELEASED);

delete op;

}

Boolean MessageQueueService::ForwardOp(

AsyncOpNode *op,

Uint32 destination)

{

PEGASUS_ASSERT(op != 0);

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);

}

Boolean MessageQueueService::SendAsync(

AsyncOpNode *op,

Uint32 destination,

Line 883

Line 745

// get the queue handle for the destination

op->lock();

op->_op_dest = MessageQueue::lookup(destination); // destination of this message

// 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

op->_async_callback = callback; // callback function to be executed by recpt. of response

// callback function to be executed by recpt. of response

op->_callback_node = op; // the op node

op->_async_callback = callback;

op->_callback_response_q = callback_response_q; // the queue that will receive the response

// the op node

op->_callback_ptr = callback_ptr; // user data for callback

op->_callback_node = op;

op->_callback_request_q = this; // I am the originator of this request

// 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)

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Line 768

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() & message_mask::ha_async))

{

AsyncLegacyOperationStart *wrapper = new AsyncLegacyOperationStart(

get_next_xid(),

op,

destination,

msg,

destination);

}

else

{

op->_request.insert_first(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)

if (mask & MessageMask::ha_async)

{

op = (static_cast<AsyncMessage *>(msg))->op ;

}

Line 960

Line 781

if (op == 0)

{

op = get_op();

op->_request.insert_first(msg);

op->_request.reset(msg);

if (mask & message_mask::ha_async)

if (mask & MessageMask::ha_async)

{

(static_cast<AsyncMessage *>(msg))->op = op;

}

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Line 814

if (request->op == 0)

{

request->op = get_op();

request->op->_request.insert_first(request);

request->op->_request.reset(request);

destroy_op = true;

}

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Line 829

request->op->_client_sem.wait();

request->op->lock();

AsyncReply* rpl = static_cast<AsyncReply *>(request->op->removeResponse());

AsyncReply * rpl = static_cast<AsyncReply *>(request->op->_response.remove_first());

rpl->op = 0;

request->op->unlock();

if (destroy_op == true)

{

request->op->lock();

request->op->_request.remove(request);

request->op->_request.release();

request->op->_state |= ASYNC_OPSTATE_RELEASED;

request->op->unlock();

return_op(request->op);

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Line 844

return rpl;

}

Uint32 MessageQueueService::find_service_qid(const String &name)

Boolean MessageQueueService::register_service(

String name,

Uint32 capabilities,

Uint32 mask)

{

RegisterCimService *msg = new RegisterCimService(

get_next_xid(),

true,

name,

capabilities,

mask,

_queueId);

msg->dest = CIMOM_Q_ID;

Boolean registered = false;

AsyncReply *reply = static_cast<AsyncReply *>(SendWait(msg));

if (reply != 0)

{

if (reply->getMask() & message_mask::ha_async)

{

if (reply->getMask() & message_mask::ha_reply)

{

if (reply->result == async_results::OK ||

reply->result == async_results::MODULE_ALREADY_REGISTERED)

{

registered = true;

MessageQueue *queue = MessageQueue::lookup((const char*)name.getCString());

}

PEGASUS_ASSERT(queue);

}

return queue->getQueueId();

}

delete reply;

}

delete msg;

return registered;

}

Boolean MessageQueueService::update_service(Uint32 capabilities, Uint32 mask)

MessageQueueService::PollingList* MessageQueueService::_get_polling_list()

{

UpdateCimService *msg = new UpdateCimService(

_polling_list_mutex.lock();

get_next_xid(),

true,

_queueId,

_capabilities,

_mask);

Boolean registered = false;

AsyncMessage *reply = SendWait(msg);

if (reply)

{

if (reply->getMask() & message_mask::ha_async)

{

if (reply->getMask() & message_mask::ha_reply)

{

if (static_cast<AsyncReply *>(reply)->result == async_results::OK)

{

registered = true;

}

delete reply;

}

delete msg;

return registered;

}

Boolean MessageQueueService::deregister_service()

{

_meta_dispatcher->deregister_module(_queueId);

return true;

}

void MessageQueueService::find_services(

String name,

Uint32 capabilities,

Uint32 mask,

Array<Uint32> *results)

{

if (results == 0)

{

throw NullPointer();

}

results->clear();

FindServiceQueue *req = new FindServiceQueue(

get_next_xid(),

_queueId,

true,

name,

capabilities,

mask);

req->dest = CIMOM_Q_ID;

AsyncMessage *reply = SendWait(req);

if (reply)

{

if (reply->getMask() & message_mask::ha_async)

{

if (reply->getMask() & message_mask::ha_reply)

{

if (reply->getType() == async_messages::FIND_SERVICE_Q_RESULT)

{

if ((static_cast<FindServiceQueueResult *>(reply))->result == async_results::OK)

*results = (static_cast<FindServiceQueueResult *>(reply))->qids;

}

delete reply;

}

delete req;

return ;

}

void MessageQueueService::enumerate_service(Uint32 queue, message_module *result)

{

if (result == 0)

{

throw NullPointer();

}

EnumerateService *req = new EnumerateService(

get_next_xid(),

_queueId,

true,

queue);

AsyncMessage *reply = SendWait(req);

if (reply)

{

Boolean found = false;

if (reply->getMask() & message_mask::ha_async)

if (!_polling_list)

{

_polling_list = new PollingList;

if (reply->getMask() & message_mask::ha_reply)

{

if (reply->getType() == async_messages::ENUMERATE_SERVICE_RESULT)

{

if ((static_cast<EnumerateServiceResponse *>(reply))->result == async_results::OK)

{

if (found == false)

{

found = true;

result->put_name((static_cast<EnumerateServiceResponse *>(reply))->name);

_polling_list_mutex.unlock();

result->put_capabilities((static_cast<EnumerateServiceResponse *>(reply))->capabilities);

result->put_mask((static_cast<EnumerateServiceResponse *>(reply))->mask);

result->put_queue((static_cast<EnumerateServiceResponse *>(reply))->qid);

}

delete reply;

}

delete req;

return;

}

Uint32 MessageQueueService::get_next_xid()

{

static Mutex _monitor;

Uint32 value;

AutoMutex autoMut(_monitor);

_xid++;

value = _xid.value();

return value;

return _polling_list;

}

PEGASUS_NAMESPACE_END

Legend:

Removed from v.1.112
changed lines
	Added in v.1.146

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