| #ifndef _PRAGMA_COPYRIGHT_ |
| #define _PRAGMA_COPYRIGHT_ |
| #pragma comment(copyright, "%Z% %I% %W% %D% %T%\0") |
| #endif /* _PRAGMA_COPYRIGHT_ */ |
| /**************************************************************************** |
| |
| * Copyright (c) 2008, 2010 IBM Corporation. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0s |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| |
| Classes: ReaderProcessor |
| |
| Description: Properties of class 'ReaderProcessor': |
| input: a stream |
| output: two message queues |
| action: relay messages from the stream to the queues, normal messages to a |
| queue, error handling messages to another queue |
| |
| Author: Nicole Nie |
| |
| History: |
| Date Who ID Description |
| -------- --- --- ----------- |
| 05/25/09 nieyy Initial code (F156654) |
| |
| ****************************************************************************/ |
| |
| #include "readerproc.hpp" |
| #include <assert.h> |
| |
| #include "log.hpp" |
| #include "exception.hpp" |
| #include "socket.hpp" |
| |
| #include "ctrlblock.hpp" |
| #include "statemachine.hpp" |
| #include "routinglist.hpp" |
| #include "message.hpp" |
| #include "stream.hpp" |
| #include "queue.hpp" |
| #include "errevent.hpp" |
| #include "writerproc.hpp" |
| |
| ReaderProcessor::ReaderProcessor(int hndl) |
| : Processor(hndl) |
| { |
| name = "Reader"; |
| |
| inStream = NULL; |
| outQueue = NULL; |
| |
| outErrorQueue = NULL; |
| peerProcessor = NULL; |
| } |
| |
| Message * ReaderProcessor::read() |
| { |
| assert(inStream); |
| |
| Message *msg = new Message(); |
| *inStream >> *msg; |
| |
| return msg; |
| } |
| |
| void ReaderProcessor::process(Message * msg) |
| { |
| assert(msg); |
| // no action |
| } |
| |
| void ReaderProcessor::write(Message * msg) |
| { |
| assert(outQueue); |
| |
| // normal and error messages to different queues |
| switch (msg->getType()) { |
| case Message::GROUP_MERGE: |
| case Message::ERROR_EVENT: |
| // use 'id' field to store child agent id information, and transfer this message |
| // to router processor |
| msg->setID(handle); |
| case Message::UNCLE: |
| case Message::UNCLE_LIST: |
| case Message::PARENT: |
| case Message::SHUTDOWN: |
| case Message::KILLNODE: |
| if (outErrorQueue) { |
| outErrorQueue->produce(msg); |
| } else { |
| delete msg; |
| } |
| break; |
| default: |
| outQueue->produce(msg); |
| break; |
| } |
| } |
| |
| void ReaderProcessor::seize() |
| { |
| if (handle == gCtrlBlock->getMyHandle()) { |
| gStateMachine->parse(StateMachine::PARENT_BROKEN); |
| } else { |
| gStateMachine->parse(StateMachine::CLIENT_BROKEN); |
| } |
| |
| // exit the peer relay processor thread related to the same socket |
| peerProcessor->stop(); |
| |
| if (gStateMachine->isToQuit(handle)) { |
| // if already got user's quit command, no need to generate error messages |
| return; |
| } |
| |
| if (outErrorQueue) { |
| // generate an error message and put it into error message queue |
| ErrorEvent event; |
| if (handle == gCtrlBlock->getMyHandle()) { |
| event.setErrCode(SCI_ERR_PARENT_BROKEN); |
| event.setBENum(gRoutingList->numOfBE(SCI_GROUP_ALL)); |
| } else { |
| event.setErrCode(SCI_ERR_CHILD_BROKEN); |
| event.setBENum(gRoutingList->numOfBEOfSuccessor(handle)); |
| } |
| event.setNodeID(handle); |
| |
| Message *msg = event.packMsg(); |
| outErrorQueue->produce(msg); |
| } else if (handle == gCtrlBlock->getMyHandle()) { |
| // do not try to recover |
| gStateMachine->parse(StateMachine::RECOVER_FAILED); |
| } |
| } |
| |
| void ReaderProcessor::clean() |
| { |
| inStream->stopRead(); |
| } |
| |
| bool ReaderProcessor::isActive() |
| { |
| return gCtrlBlock->isEnabled(); |
| } |
| |
| void ReaderProcessor::setInStream(Stream * stream) |
| { |
| inStream = stream; |
| } |
| |
| void ReaderProcessor::setOutQueue(MessageQueue * queue) |
| { |
| outQueue = queue; |
| } |
| |
| void ReaderProcessor::setOutErrorQueue(MessageQueue * queue) |
| { |
| outErrorQueue = queue; |
| } |
| |
| void ReaderProcessor::setPeerProcessor(WriterProcessor * processor) |
| { |
| peerProcessor = processor; |
| } |
| |