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

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Diff for /pegasus/src/Pegasus/Common/MessageQueueService.cpp between version 1.9 and 1.159

version 1.9, 2002/02/04 17:37:56

version 1.159, 2008/12/16 18:56:00

Line 1

//%////-*-c++-*-////////////////////////////////////////////////////////////////

//%LICENSE////////////////////////////////////////////////////////////////

// Licensed to The Open Group (TOG) under one or more contributor license

// agreements. Refer to the OpenPegasusNOTICE.txt file distributed with

// this work for additional information regarding copyright ownership.

// Each contributor licenses this file to you under the OpenPegasus Open

// Source License; you may not use this file except in compliance with the

// License.

// 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

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

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

// deal in the Software without restriction, including without limitation the

// to deal in the Software without restriction, including without limitation

// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or

// the rights to use, copy, modify, merge, publish, distribute, sublicense,

// sell copies of the Software, and to permit persons to whom the Software is

// and/or sell copies of the Software, and to permit persons to whom the

// furnished to do so, subject to the following conditions:

// Software is furnished to do so, subject to the following conditions:

// THE ABOVE COPYRIGHT NOTICE AND THIS PERMISSION NOTICE SHALL BE INCLUDED IN

// The above copyright notice and this permission notice shall be included

// ALL COPIES OR SUBSTANTIAL PORTIONS OF THE SOFTWARE. THE SOFTWARE IS PROVIDED

// in all copies or substantial portions of the Software.

// "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT

// LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR

// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT

// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN

// ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION

// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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

// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.

// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY

// CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,

// TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE

// SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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

//////////////////////////////////////////////////////////////////////////

// Modified By:

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

#include "MessageQueueService.h"

#include <Pegasus/Common/Tracer.h>

#include <Pegasus/Common/MessageLoader.h>

PEGASUS_USING_STD;

PEGASUS_NAMESPACE_BEGIN

MessageQueueService::MessageQueueService(const char *name,

cimom *MessageQueueService::_meta_dispatcher = 0;

Uint32 queueID,

AtomicInt MessageQueueService::_service_count(0);

Uint32 capabilities,

Mutex MessageQueueService::_meta_dispatcher_mutex;

Uint32 mask)

: Base(name, false, queueID),

static struct timeval deallocateWait = {300, 0};

_capabilities(capabilities),

_mask(mask),

_die(0),

_pending(true),

_incoming(true, 1000),

_incoming_queue_shutdown(0),

_req_thread(_req_proc, this, false)

{

_default_op_timeout.tv_sec = 30;

_default_op_timeout.tv_usec = 100;

_meta_dispatcher = static_cast<cimom *>(Base::lookup(CIMOM_Q_ID));

if(_meta_dispatcher == 0 )

throw NullPointer();

_req_thread.run();

ThreadPool *MessageQueueService::_thread_pool = 0;

MessageQueueService::PollingList* MessageQueueService::_polling_list;

Mutex MessageQueueService::_polling_list_mutex;

Thread* MessageQueueService::_polling_thread = 0;

ThreadPool *MessageQueueService::get_thread_pool()

{

return _thread_pool;

}

// MAX_THREADS_PER_SVC_QUEUE

// JR Wunderlich Jun 6, 2005

#define MAX_THREADS_PER_SVC_QUEUE_LIMIT 5000

#define MAX_THREADS_PER_SVC_QUEUE_DEFAULT 5

#ifndef MAX_THREADS_PER_SVC_QUEUE

# define MAX_THREADS_PER_SVC_QUEUE MAX_THREADS_PER_SVC_QUEUE_DEFAULT

#endif

MessageQueueService::~MessageQueueService(void)

Uint32 max_threads_per_svc_queue;

ThreadReturnType PEGASUS_THREAD_CDECL MessageQueueService::polling_routine(

void* parm)

{

_die = 1;

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

if (_incoming_queue_shutdown.value() == 0 )

MessageQueueService::PollingList *list =

_incoming.shutdown_queue();

reinterpret_cast<MessageQueueService::PollingList*>(myself->get_parm());

_req_thread.join();

try

{

while (_stop_polling.get() == 0)

{

_polling_sem.wait();

if (_stop_polling.get() != 0)

{

break;

}

AtomicInt MessageQueueService::_xid(1);

// 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).

_polling_list_mutex.lock();

MessageQueueService *service = list->front();

ThreadStatus rtn = PEGASUS_THREAD_OK;

while (service != NULL)

{

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

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

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

{

// The _threads count is used to track the

// number of active threads that have been allocated

// 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++;

rtn = _thread_pool->allocate_and_awaken(

service, _req_proc, &_polling_sem);

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

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()));

void MessageQueueService::_shutdown_incoming_queue(void)

Threads::yield();

break;

}

service = list->next_of(service);

}

_polling_list_mutex.unlock();

}

catch(const Exception &e)

{

PEG_TRACE((TRC_MESSAGEQUEUESERVICE,Tracer::LEVEL1,

"Exception caught in MessageQueueService::polling_routine : %s",

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

}

catch(const exception &e)

{

PEG_TRACE((TRC_MESSAGEQUEUESERVICE,Tracer::LEVEL1,

"Exception caught in MessageQueueService::polling_routine : %s",

e.what()));

}

catch(...)

{

PEG_TRACE_CSTRING(TRC_MESSAGEQUEUESERVICE,Tracer::LEVEL1,

"Unknown Exception caught in MessageQueueService::polling_routine");

}

if (_incoming_queue_shutdown.value() > 0 )

PEGASUS_ASSERT(_stop_polling.get());

return ;

AsyncIoctl *msg = new AsyncIoctl(get_next_xid(),

return ThreadReturnType(0);

}

_queueId,

true,

AsyncIoctl::IO_CLOSE,

0);

msg->op = get_op();

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

Semaphore MessageQueueService::_polling_sem(0);

AtomicInt MessageQueueService::_stop_polling(0);

_incoming.insert_last_wait(msg->op);

MessageQueueService::MessageQueueService(

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

const char* name,

Uint32 queueID)

: Base(name, true, queueID),

_die(0),

_threads(0),

_incoming(),

_incoming_queue_shutdown(0)

{

_isRunning = true;

msg->op->lock();

max_threads_per_svc_queue = MAX_THREADS_PER_SVC_QUEUE;

AsyncReply * reply = static_cast<AsyncReply *>(msg->op->_response.remove_first());

reply->op = 0;

msg->op->unlock();

delete reply;

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

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

msg->op->_state |= ASYNC_OPSTATE_RELEASED;

// MAX_THREADS_PER_SVC_QUEUE_LIMIT

return_op(msg->op);

msg->op = 0;

if ((max_threads_per_svc_queue < 1) ||

delete msg;

(max_threads_per_svc_queue > MAX_THREADS_PER_SVC_QUEUE_LIMIT))

{

max_threads_per_svc_queue = MAX_THREADS_PER_SVC_QUEUE_LIMIT;

}

PEG_TRACE((TRC_MESSAGEQUEUESERVICE, Tracer::LEVEL3,

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

AutoMutex autoMut(_meta_dispatcher_mutex);

PEGASUS_THREAD_RETURN PEGASUS_THREAD_CDECL MessageQueueService::_req_proc(void * parm)

if (_meta_dispatcher == 0)

{

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

_stop_polling = 0;

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

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

_meta_dispatcher = new cimom();

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

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

// check pending messages that are non-blocking

// minimum_cnt, maximum_cnt, deallocateWait);

AsyncOpNode *operation = 0;

_thread_pool =

new ThreadPool(0, "MessageQueueService", 0, 0, deallocateWait);

}

_service_count++;

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

// Add to the polling list

if (!_polling_list)

{

try

_polling_list = new PollingList;

{

operation = service->_incoming.remove_first_wait();

}

catch(ListClosed & )

_polling_list->insert_back(this);

{

_meta_dispatcher->registerCIMService(this);

break;

}

if( operation )

MessageQueueService::~MessageQueueService()

{

service->_handle_incoming_operation(operation, myself, service);

// Close incoming queue.

if (_incoming_queue_shutdown.get() == 0)

{

AsyncIoClose *msg = new AsyncIoClose(

_queueId,

true);

SendForget(msg);

// Wait until our queue has been shutdown.

while (_incoming_queue_shutdown.get() == 0)

{

Threads::yield();

}

myself->exit_self( (PEGASUS_THREAD_RETURN) 1 );

// die now.

return(0);

_die = 1;

}

_meta_dispatcher->deregisterCIMService(this);

void MessageQueueService::_handle_incoming_operation(AsyncOpNode *operation,

// Wait until all threads processing the messages

Thread *thread,

// for this service have completed.

MessageQueue *queue)

while (_threads.get() > 0)

{

if ( operation != 0 )

Threads::yield();

{

operation->lock();

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

operation->unlock();

PEGASUS_ASSERT(rq != 0 );

PEGASUS_ASSERT(rq->getMask() & message_mask::ha_async );

PEGASUS_ASSERT(rq->getMask() & message_mask::ha_request);

static_cast<AsyncMessage *>(rq)->_myself = thread;

static_cast<AsyncMessage *>(rq)->_service = queue;

_handle_async_request(static_cast<AsyncRequest *>(rq));

}

return;

}

// 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.

_removeFromPollingList(this);

void MessageQueueService::_handle_async_request(AsyncRequest *req)

{

if ( req != 0 )

{

req->op->processing();

AutoMutex autoMut(_meta_dispatcher_mutex);

Uint32 type = req->getType();

_service_count--;

if( type == async_messages::HEARTBEAT )

// If we are last service to die, delete metadispatcher.

handle_heartbeat_request(req);

if (_service_count.get() == 0)

else if (type == async_messages::IOCTL)

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

else if (type == async_messages::CIMSERVICE_START)

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

else if (type == async_messages::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

_stop_polling++;

_make_response(req, async_results::CIM_NAK );

_polling_sem.signal();

if (_polling_thread)

{

_polling_thread->join();

delete _polling_thread;

_polling_thread = 0;

}

delete _meta_dispatcher;

_meta_dispatcher = 0;

delete _thread_pool;

_thread_pool = 0;

}

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

// Clean up any extra stuff on the queue.

AsyncOpNode* op = 0;

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

{

AsyncReply *reply =

delete op;

new AsyncReply(async_messages::REPLY,

}

req->getKey(),

req->getRouting(),

req->op,

code,

req->resp,

false);

_completeAsyncResponse(req, reply, ASYNC_OPSTATE_COMPLETE, 0 );

}

void MessageQueueService::enqueue(Message* msg)

void MessageQueueService::_completeAsyncResponse(AsyncRequest *request,

AsyncReply *reply,

Uint32 state,

Uint32 flag)

{

PEGASUS_ASSERT(request != 0 && reply != 0 );

PEG_METHOD_ENTER(TRC_MESSAGEQUEUESERVICE, "MessageQueueService::enqueue()");

AsyncOpNode *op = request->op;

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();

Base::enqueue(msg);

PEG_METHOD_EXIT();

}

ThreadReturnType PEGASUS_THREAD_CDECL MessageQueueService::_req_proc(

Boolean MessageQueueService::accept_async(AsyncOpNode *op)

void* parm)

{

if (_incoming_queue_shutdown.value() > 0 )

MessageQueueService* service =

return false;

reinterpret_cast<MessageQueueService*>(parm);

PEGASUS_ASSERT(service != 0);

op->lock();

try

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

op->unlock();

if( true == messageOK(rq) && _die.value() == 0 )

{

_incoming.insert_last_wait(op);

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

return true;

{

}

service->_threads--;

return false;

return 0;

}

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

// check pending messages that are non-blocking

AsyncOpNode *operation = 0;

Boolean MessageQueueService::messageOK(const Message *msg)

// many operations may have been queued.

{

if (_incoming_queue_shutdown.value() > 0 )

operation = service->_incoming.dequeue();

return false;

if ( msg != 0 )

if (operation)

{

Uint32 mask = msg->getMask();

operation->_service_ptr = service;

if ( mask & message_mask::ha_async)

service->_handle_incoming_operation(operation);

if ( mask & message_mask::ha_request)

return true;

}

return false;

} while (operation);

}

catch (const Exception& e)

void MessageQueueService::handleEnqueue(void)

{

Message *msg = dequeue();

PEG_TRACE((TRC_DISCARDED_DATA, Tracer::LEVEL1,

if( msg )

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

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

}

catch (...)

{

delete msg;

PEG_TRACE_CSTRING(TRC_DISCARDED_DATA, Tracer::LEVEL1,

"Caught unrecognized exception. Exiting _req_proc.");

}

service->_threads--;

return 0;

}

void MessageQueueService::handle_heartbeat_request(AsyncRequest *req)

{

// default action is to echo a heartbeat response

AsyncReply *reply =

void MessageQueueService::_sendwait_callback(

new AsyncReply(async_messages::HEARTBEAT,

AsyncOpNode* op,

req->getKey(),

MessageQueue* q,

req->getRouting(),

void *parm)

{

req->op,

op->_client_sem.signal();

async_results::OK,

req->resp,

false);

_completeAsyncResponse(req, reply, ASYNC_OPSTATE_COMPLETE, 0 );

}

void MessageQueueService::handle_heartbeat_reply(AsyncReply *rep)

// callback function is responsible for cleaning up all resources

// including op, op->_callback_node, and op->_callback_ptr

void MessageQueueService::_handle_async_callback(AsyncOpNode* op)

{

;

PEGASUS_ASSERT(op->_flags == ASYNC_OPFLAGS_CALLBACK);

// 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);

}

void MessageQueueService::handle_AsyncIoctl(AsyncIoctl *req)

{

switch( req->ctl )

void MessageQueueService::_handle_incoming_operation(AsyncOpNode* operation)

{

case AsyncIoctl::IO_CLOSE:

if (operation != 0)

{

// save my bearings

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

Thread *myself = req->_myself;

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

// respond to this message.

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

_make_response(req, async_results::OK);

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

// ensure we do not accept any further messages

// messages become async messages.

// ensure we don't recurse on IO_CLOSE

// divert legacy messages to handleEnqueue

if( _incoming_queue_shutdown.value() > 0 )

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

break;

{

operation->_request.release();

// delete the op node

return_op(operation);

handleEnqueue(rq);

return;

}

// set the closing flag

if ((operation->_flags & ASYNC_OPFLAGS_CALLBACK) &&

service->_incoming_queue_shutdown = 1;

(operation->_state & ASYNC_OPSTATE_COMPLETE))

// empty out the queue

while( 1 )

{

AsyncOpNode *operation;

_handle_async_callback(operation);

try

{

operation = service->_incoming.remove_first();

}

catch(IPCException & )

else

{

break;

PEGASUS_ASSERT(rq != 0);

_handle_async_request(static_cast<AsyncRequest *>(rq));

}

if( operation )

{

service->_handle_incoming_operation(operation, myself, service);

}

else

break;

} // message processing loop

// shutdown the AsyncDQueue

service->_incoming.shutdown_queue();

// exit the thread !

myself->exit_self( (PEGASUS_THREAD_RETURN) 1 );

return;

}

default:

void MessageQueueService::_handle_async_request(AsyncRequest *req)

_make_response(req, async_results::CIM_NAK);

}

void MessageQueueService::handle_CimServiceStart(CimServiceStart *req)

{

_make_response(req, async_results::CIM_NAK);

MessageType type = req->getType();

}

if (type == ASYNC_IOCLOSE)

void MessageQueueService::handle_CimServiceStop(CimServiceStop *req)

{

_make_response(req, async_results::CIM_NAK);

handle_AsyncIoClose(static_cast<AsyncIoClose*>(req));

}

void MessageQueueService::handle_CimServicePause(CimServicePause *req)

else if (type == ASYNC_CIMSERVICE_START)

{

_make_response(req, async_results::CIM_NAK);

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

}

void MessageQueueService::handle_CimServiceResume(CimServiceResume *req)

else if (type == ASYNC_CIMSERVICE_STOP)

{

_make_response(req, async_results::CIM_NAK);

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

}

else

void MessageQueueService::handle_AsyncOperationStart(AsyncOperationStart *req)

{

// we don't handle this request message

_make_response(req, async_results::CIM_NAK);

}

void MessageQueueService::handle_AsyncOperationResult(AsyncOperationResult *req)

{

;

}

AsyncOpNode *MessageQueueService::get_op(void)

Boolean MessageQueueService::_enqueueResponse(

Message* request,

Message* response)

{

AsyncOpNode *op = new AsyncOpNode();

PEG_METHOD_ENTER(TRC_MESSAGEQUEUESERVICE,

"MessageQueueService::_enqueueResponse");

op->_state = ASYNC_OPSTATE_UNKNOWN;

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

op->_flags = ASYNC_OPFLAGS_SINGLE | ASYNC_OPFLAGS_NORMAL;

{

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

{

_completeAsyncResponse(

static_cast<AsyncRequest *>(request),

static_cast<AsyncReply *>(response));

return op;

PEG_METHOD_EXIT();

return true;

}

void MessageQueueService::return_op(AsyncOpNode *op)

{

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

delete op;

}

AsyncRequest* asyncRequest =

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

if (asyncRequest != 0)

AsyncReply *MessageQueueService::SendWait(AsyncRequest *request)

{

if ( request == 0 )

PEGASUS_ASSERT(asyncRequest->getMask() &

return 0 ;

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

Boolean destroy_op = false;

AsyncOpNode* op = asyncRequest->op;

if (request->op == false)

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

{

// remove it from the op node

request->op = get_op();

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

destroy_op = true;

}

request->block = true;

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

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

request->op->put_response(0);

// first link it on our pending list

AsyncLegacyOperationResult *async_result =

// _pending.insert_last_wait(request->op);

new AsyncLegacyOperationResult(

op,

response);

_completeAsyncResponse(

asyncRequest,

async_result);

// now see if the meta dispatcher will take it

PEG_METHOD_EXIT();

return true;

if (true == _meta_dispatcher->route_async(request->op))

}

{

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

PEGASUS_ASSERT(request->op->_state & ASYNC_OPSTATE_COMPLETE);

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

PEG_METHOD_EXIT();

return SendForget(response);

}

request->op->lock();

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

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

{

rpl->op = 0;

cimom::_make_response(req, code);

request->op->unlock();

}

if( destroy_op == true)

void MessageQueueService::_completeAsyncResponse(

AsyncRequest* request,

AsyncReply* reply)

{

request->op->lock();

PEG_METHOD_ENTER(TRC_MESSAGEQUEUESERVICE,

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

"MessageQueueService::_completeAsyncResponse");

request->op->_state |= ASYNC_OPSTATE_RELEASED;

request->op->unlock();

return_op(request->op);

cimom::_completeAsyncResponse(request, reply);

request->op = 0;

}

return rpl;

PEG_METHOD_EXIT();

}

Boolean MessageQueueService::register_service(String name,

void MessageQueueService::_complete_op_node(

Uint32 capabilities,

AsyncOpNode* op)

Uint32 mask)

{

RegisterCimService *msg = new RegisterCimService(get_next_xid(),

cimom::_complete_op_node(op);

}

true,

name,

capabilities,

mask,

_queueId);

Boolean registered = false;

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

if ( reply != 0 )

Boolean MessageQueueService::accept_async(AsyncOpNode* op)

{

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

if (!_isRunning)

{

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

// Don't accept any messages other than start.

if (op->_request.get()->getType() != ASYNC_CIMSERVICE_START)

{

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

return false;

registered = true;

}

delete reply;

if (_incoming_queue_shutdown.get() > 0)

}

return false;

delete msg;

return registered;

}

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

if (_polling_thread == NULL)

{

PEGASUS_ASSERT(_polling_list);

_polling_thread = new Thread(

UpdateCimService *msg = new UpdateCimService(get_next_xid(),

polling_routine,

reinterpret_cast<void *>(_polling_list),

true,

false);

_queueId,

ThreadStatus tr = PEGASUS_THREAD_OK;

_capabilities,

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

_mask);

Boolean registered = false;

AsyncMessage *reply = SendWait(msg);

if (reply)

{

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

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."));

}

if (_die.get() == 0)

{

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

if (_incoming.enqueue(op))

{

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

_polling_sem.signal();

registered = true;

return true;

}

delete reply;

}

delete msg;

return false;

return registered;

}

void MessageQueueService::handle_AsyncIoClose(AsyncIoClose *req)

Boolean MessageQueueService::deregister_service(void)

{

MessageQueueService *service =

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

_meta_dispatcher->deregister_module(_queueId);

#ifdef MESSAGEQUEUESERVICE_DEBUG

return true;

PEGASUS_STD(cout) << service->getQueueName() <<

" Received AsyncIoClose " << PEGASUS_STD(endl);

#endif

// set the closing flag, don't accept any more messages

service->_incoming_queue_shutdown = 1;

// 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);

}

void MessageQueueService::handle_CimServiceStart(CimServiceStart* req)

{

#ifdef MESSAGEQUEUESERVICE_DEBUG

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

PEGASUS_STD(endl);

#endif

PEGASUS_ASSERT(!_isRunning);

_isRunning = true;

_make_response(req, async_results::OK);

}

void MessageQueueService::find_services(String name,

void MessageQueueService::handle_CimServiceStop(CimServiceStop* req)

Uint32 capabilities,

Uint32 mask,

Array<Uint32> *results)

{

#ifdef MESSAGEQUEUESERVICE_DEBUG

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

#endif

PEGASUS_ASSERT(_isRunning);

_isRunning = false;

_make_response(req, async_results::CIM_SERVICE_STOPPED);

}

if( results == 0 )

AsyncOpNode* MessageQueueService::get_op()

throw NullPointer();

{

AsyncOpNode* op = new AsyncOpNode();

results->clear();

op->_state = ASYNC_OPSTATE_UNKNOWN;

op->_flags = ASYNC_OPFLAGS_UNKNOWN;

FindServiceQueue *req =

return op;

new FindServiceQueue(get_next_xid(),

}

_queueId,

true,

name,

capabilities,

mask);

AsyncMessage *reply = SendWait(req);

void MessageQueueService::return_op(AsyncOpNode* op)

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 )

delete op;

*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

Boolean MessageQueueService::SendAsync(

= new EnumerateService(get_next_xid(),

AsyncOpNode* op,

Uint32 destination,

_queueId,

void (*callback)(AsyncOpNode*, MessageQueue*, void*),

true,

MessageQueue* callback_response_q,

queue);

void* callback_ptr)

{

return _sendAsync(

op,

destination,

callback,

callback_response_q,

callback_ptr,

ASYNC_OPFLAGS_CALLBACK);

AsyncMessage *reply = SendWait(req);

}

if (reply)

Boolean MessageQueueService::_sendAsync(

AsyncOpNode* op,

Uint32 destination,

void (*callback)(AsyncOpNode*, MessageQueue*, void*),

MessageQueue* callback_response_q,

void* callback_ptr,

Uint32 flags)

{

PEGASUS_ASSERT(op != 0 && callback != 0);

// destination of this message

op->_op_dest = MessageQueue::lookup(destination);

if (op->_op_dest == 0)

{

Boolean found = false;

return false;

}

op->_flags = flags;

// 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;

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

return _meta_dispatcher->route_async(op);

{

}

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

Boolean MessageQueueService::SendForget(Message* msg)

{

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

AsyncOpNode* op = 0;

Uint32 mask = msg->getMask();

if (mask & MessageMask::ha_async)

{

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

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

}

if (op == 0)

{

if( found == false)

op = get_op();

op->_request.reset(msg);

if (mask & MessageMask::ha_async)

{

found = true;

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

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

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

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

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

}

PEGASUS_ASSERT(op->_flags == ASYNC_OPFLAGS_UNKNOWN);

PEGASUS_ASSERT(op->_state == ASYNC_OPSTATE_UNKNOWN);

op->_op_dest = MessageQueue::lookup(msg->dest);

if (op->_op_dest == 0)

{

return_op(op);

return false;

}

op->_flags = ASYNC_OPFLAGS_FIRE_AND_FORGET;

// now see if the meta dispatcher will take it

return _meta_dispatcher->route_async(op);

}

AsyncReply *MessageQueueService::SendWait(AsyncRequest* request)

{

if (request == 0)

return 0;

Boolean destroy_op = false;

if (request->op == 0)

{

request->op = get_op();

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

destroy_op = true;

}

delete reply;

PEGASUS_ASSERT(request->op->_flags == ASYNC_OPFLAGS_UNKNOWN);

PEGASUS_ASSERT(request->op->_state == ASYNC_OPSTATE_UNKNOWN);

request->block = false;

_sendAsync(

request->op,

request->dest,

_sendwait_callback,

this,

(void *)0,

ASYNC_OPFLAGS_PSEUDO_CALLBACK);

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

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

rpl->op = 0;

if (destroy_op == true)

{

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

return_op(request->op);

request->op = 0;

}

return rpl;

}

delete req;

return;

Uint32 MessageQueueService::find_service_qid(const String &name)

{

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

PEGASUS_ASSERT(queue);

return queue->getQueueId();

}

Uint32 MessageQueueService::get_next_xid(void)

void MessageQueueService::_removeFromPollingList(MessageQueueService *service)

{

_xid++;

_polling_list_mutex.lock();

return _xid.value();

_polling_list->remove(service);

_polling_list_mutex.unlock();

}

PEGASUS_NAMESPACE_END

Legend:

Removed from v.1.9
changed lines
	Added in v.1.159

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