version 1.48, 2006/07/11 18:39:28
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version 1.56.18.1, 2008/07/01 15:18:00
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// | // |
//============================================================================== | //============================================================================== |
// | // |
// Author: Mike Brasher (mbrasher@bmc.com) |
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// |
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// Modified By: Amit K Arora, IBM (amita@in.ibm.com) for Bug#1090 |
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// Josephine Eskaline Joyce, IBM (jojustin@in.ibm.com) for Bug#2076 |
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// David Dillard, VERITAS Software Corp. |
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// (david.dillard@veritas.com) |
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// Aruran, IBM (ashanmug@in.ibm.com) for Bug# 3475 |
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// |
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//%///////////////////////////////////////////////////////////////////////////// | //%///////////////////////////////////////////////////////////////////////////// |
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#include <Pegasus/Common/HashTable.h> | #include <Pegasus/Common/HashTable.h> |
#include <Pegasus/Common/IPC.h> |
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#include <Pegasus/Common/Tracer.h> | #include <Pegasus/Common/Tracer.h> |
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#include <Pegasus/Common/CimomMessage.h> |
#include "MessageQueue.h" | #include "MessageQueue.h" |
#include "MessageQueueService.h" |
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#include "IDFactory.h" | #include "IDFactory.h" |
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PEGASUS_USING_STD; | PEGASUS_USING_STD; |
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static QueueTable _queueTable(256); | static QueueTable _queueTable(256); |
static Mutex q_table_mut ; | static Mutex q_table_mut ; |
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void MessageQueue::remove_myself(Uint32 qid) |
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{ |
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AutoMutex autoMut(q_table_mut); |
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_queueTable.remove(qid); |
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} |
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static IDFactory _qidFactory(CIMOM_Q_ID + 1); | static IDFactory _qidFactory(CIMOM_Q_ID + 1); |
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Uint32 MessageQueue::getNextQueueId() | Uint32 MessageQueue::getNextQueueId() |
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const char* name, | const char* name, |
Boolean async, | Boolean async, |
Uint32 queueId) | Uint32 queueId) |
: _queueId(queueId), _capabilities(0), _count(0), _front(0), _back(0), _async(async) |
: _queueId(queueId), _capabilities(0), _async(async) |
{ | { |
// | // |
// Copy the name: | // Copy the name: |
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_name = new char[strlen(name) + 1]; | _name = new char[strlen(name) + 1]; |
strcpy(_name, name); | strcpy(_name, name); |
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Tracer::trace(TRC_MESSAGEQUEUESERVICE, Tracer::LEVEL3, |
PEG_TRACE((TRC_MESSAGEQUEUESERVICE, Tracer::LEVEL3, |
"MessageQueue::MessageQueue name = %s, queueId = %u", name, queueId); |
"MessageQueue::MessageQueue name = %s, queueId = %u", name, queueId)); |
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// | // |
// Insert into queue table: | // Insert into queue table: |
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{ | { |
// ATTN-A: thread safety! | // ATTN-A: thread safety! |
PEG_METHOD_ENTER(TRC_MESSAGEQUEUESERVICE,"MessageQueue::~MessageQueue()"); | PEG_METHOD_ENTER(TRC_MESSAGEQUEUESERVICE,"MessageQueue::~MessageQueue()"); |
Tracer::trace(TRC_MESSAGEQUEUESERVICE, Tracer::LEVEL3, |
PEG_TRACE((TRC_MESSAGEQUEUESERVICE, Tracer::LEVEL3, |
"MessageQueue::~MessageQueue queueId = %i, name = %s", _queueId, _name); |
"MessageQueue::~MessageQueue queueId = %i, name = %s", |
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_queueId, |
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_name)); |
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{ | { |
AutoMutex autoMut(q_table_mut); | AutoMutex autoMut(q_table_mut); |
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delete [] _name; | delete [] _name; |
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while(_front) |
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{ |
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Message* tmp = _front; |
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_front = _front->_next; |
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delete tmp; |
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} |
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// Return the queue id. | // Return the queue id. |
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putQueueId(_queueId); | putQueueId(_queueId); |
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{ | { |
PEG_METHOD_ENTER(TRC_MESSAGEQUEUESERVICE,"MessageQueue::enqueue()"); | PEG_METHOD_ENTER(TRC_MESSAGEQUEUESERVICE,"MessageQueue::enqueue()"); |
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if (!message) |
PEGASUS_ASSERT(message != 0); |
{ |
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Tracer::trace(TRC_MESSAGEQUEUESERVICE, Tracer::LEVEL3, |
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"MessageQueue::enqueue failure"); |
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PEG_METHOD_EXIT(); |
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throw NullPointer(); |
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} |
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PEG_TRACE_STRING( TRC_MESSAGEQUEUESERVICE, Tracer::LEVEL3, |
PEG_TRACE((TRC_MESSAGEQUEUESERVICE, Tracer::LEVEL3, |
String("Queue name: ") + getQueueName() ) ; |
"Queue name: [%s], Message: [%s]", |
Tracer::trace ( TRC_MESSAGEQUEUESERVICE, |
getQueueName(), |
Tracer::LEVEL3, |
MessageTypeToString(message->getType()))); |
"Message: [%s, %d]", |
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MessageTypeToString(message->getType()), |
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message->getKey() ); |
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{ |
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AutoMutex autoMut(_mut); |
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if (_back) |
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{ |
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_back->_next = message; |
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message->_prev = _back; |
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message->_next = 0; |
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_back = message; |
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} |
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else |
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{ |
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_front = message; |
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_back = message; |
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message->_prev = 0; |
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message->_next = 0; |
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} |
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message->_owner = this; |
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_count++; |
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Tracer::trace(TRC_MESSAGEQUEUESERVICE, Tracer::LEVEL4, |
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"MessageQueue::enqueue _queueId = %d, _count = %d", _queueId, _count); |
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} // mutex unlocks here |
_messageList.insert_back(message); |
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handleEnqueue(); | handleEnqueue(); |
PEG_METHOD_EXIT(); | PEG_METHOD_EXIT(); |
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{ | { |
PEG_METHOD_ENTER(TRC_MESSAGEQUEUESERVICE,"MessageQueue::dequeue()"); | PEG_METHOD_ENTER(TRC_MESSAGEQUEUESERVICE,"MessageQueue::dequeue()"); |
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AutoMutex autoMut(_mut); |
Message* message = _messageList.remove_front(); |
if (_front) |
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{ |
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Message* message = _front; |
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_front = _front->_next; |
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if (_front) |
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_front->_prev = 0; |
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if (_back == message) |
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_back = 0; |
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_count--; |
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Tracer::trace(TRC_MESSAGEQUEUESERVICE, Tracer::LEVEL4, |
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"MessageQueue::dequeue _queueId = %d, _count = %d", |
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_queueId, _count); |
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message->_next = 0; |
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message->_prev = 0; |
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message->_owner = 0; |
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PEG_METHOD_EXIT(); | PEG_METHOD_EXIT(); |
return message; | return message; |
} | } |
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PEG_METHOD_EXIT(); |
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return 0; |
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} |
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void MessageQueue::remove(Message* message) |
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{ |
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PEG_METHOD_ENTER(TRC_MESSAGEQUEUESERVICE,"MessageQueue::remove()"); |
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if (!message) |
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{ |
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PEG_METHOD_EXIT(); |
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throw NullPointer(); |
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} |
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if (message->_owner != this) |
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{ |
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PEG_METHOD_EXIT(); |
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throw NoSuchMessageOnQueue(); |
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} |
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{ |
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AutoMutex autoMut(_mut); |
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if (message->_next) |
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message->_next->_prev = message->_prev; |
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else |
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_back = message->_prev; |
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if (message->_prev) |
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message->_prev->_next = message->_next; |
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else |
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_front = message->_next; |
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_count--; |
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Tracer::trace(TRC_MESSAGEQUEUESERVICE, Tracer::LEVEL4, |
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"MessageQueue::remove _count = %d", _count); |
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} // mutex unlocks here |
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message->_prev = 0; |
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message->_next = 0; |
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message->_owner = 0; |
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PEG_METHOD_EXIT(); |
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} |
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Message* MessageQueue::findByType(Uint32 type) |
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{ |
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AutoMutex autoMut(_mut); |
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for (Message* m = front(); m; m = m->getNext()) |
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{ |
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if (m->getType() == type) |
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{ |
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return m; |
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} |
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} |
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return 0; |
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} |
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Message* MessageQueue::findByKey(Uint32 key) |
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{ |
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AutoMutex autoMut(_mut); |
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for (Message* m = front(); m; m = m->getNext()) |
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{ |
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if (m->getKey() == key) |
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{ |
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return m; |
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} |
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} |
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return 0; |
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} |
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#ifdef PEGASUS_DEBUG |
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void MessageQueue::print(ostream& os) const |
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{ |
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AutoMutex autoMut(const_cast<MessageQueue *>(this)->_mut); |
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for (const Message* m = front(); m; m = m->getNext()) |
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m->print(os); |
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} |
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#endif |
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Message* MessageQueue::find(Uint32 type, Uint32 key) |
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{ |
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AutoMutex autoMut(_mut); |
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for (Message* m = front(); m; m = m->getNext()) |
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{ |
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if (m->getType() == type && m->getKey() == key) |
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{ |
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return m; |
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} |
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} |
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return 0; |
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} |
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const char* MessageQueue::getQueueName() const | const char* MessageQueue::getQueueName() const |
{ | { |
return _name; | return _name; |
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// Not found! | // Not found! |
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Tracer::trace(TRC_MESSAGEQUEUESERVICE, Tracer::LEVEL3, |
PEG_TRACE((TRC_MESSAGEQUEUESERVICE, Tracer::LEVEL1, |
"MessageQueue::lookup failure queueId = %u", queueId); |
"MessageQueue::lookup failure queueId = %u", queueId)); |
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return 0; | return 0; |
} | } |
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// ATTN: Need to decide how many characters to compare in queue names | // ATTN: Need to decide how many characters to compare in queue names |
if(! strcmp( ((MessageQueue *)i.value())->getQueueName(), name) ) | if(! strcmp( ((MessageQueue *)i.value())->getQueueName(), name) ) |
{ | { |
return( (MessageQueue *)i.value()); |
return (MessageQueue *)i.value(); |
} | } |
} | } |
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Tracer::trace(TRC_MESSAGEQUEUESERVICE, Tracer::LEVEL3, |
PEG_TRACE((TRC_MESSAGEQUEUESERVICE, Tracer::LEVEL1, |
"MessageQueue::lookup failure - name = %s", name); |
"MessageQueue::lookup failure - name = %s", name)); |
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return 0; | return 0; |
} | } |