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author | Rajith Muditha Attapattu <rajith@apache.org> | 2007-11-20 14:01:22 +0000 |
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committer | Rajith Muditha Attapattu <rajith@apache.org> | 2007-11-20 14:01:22 +0000 |
commit | e162ae8c89bfc29293ed84d552dbb373dd1c06f3 (patch) | |
tree | 4d0737f7a4324dfd93c4b519cce1e6998e46cf77 /Final/cpp/lib/common/sys/posix/EventChannelConnection.h | |
parent | bcd011a10c0db4ffc6f78380c548d673e270e000 (diff) | |
download | qpid-python-e162ae8c89bfc29293ed84d552dbb373dd1c06f3.tar.gz |
Creating tag for M2 final release
git-svn-id: https://svn.apache.org/repos/asf/incubator/qpid/tags/M2@596674 13f79535-47bb-0310-9956-ffa450edef68
Diffstat (limited to 'Final/cpp/lib/common/sys/posix/EventChannelConnection.h')
-rw-r--r-- | Final/cpp/lib/common/sys/posix/EventChannelConnection.h | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/Final/cpp/lib/common/sys/posix/EventChannelConnection.h b/Final/cpp/lib/common/sys/posix/EventChannelConnection.h new file mode 100644 index 0000000000..da190b0213 --- /dev/null +++ b/Final/cpp/lib/common/sys/posix/EventChannelConnection.h @@ -0,0 +1,105 @@ +#ifndef _posix_EventChannelConnection_h +#define _posix_EventChannelConnection_h + +/* + * + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + * + */ + +#include <boost/ptr_container/ptr_deque.hpp> + +#include "EventChannelThreads.h" +#include "sys/Monitor.h" +#include "sys/SessionContext.h" +#include "sys/SessionHandler.h" +#include "sys/AtomicCount.h" +#include "framing/AMQFrame.h" + +namespace qpid { +namespace sys { + +class SessionHandlerFactory; + +/** + * Implements SessionContext and delegates to a SessionHandler + * for a connection via the EventChannel. + *@param readDescriptor file descriptor for reading. + *@param writeDescriptor file descriptor for writing, + * by default same as readDescriptor + */ +class EventChannelConnection : public SessionContext { + public: + EventChannelConnection( + EventChannelThreads::shared_ptr threads, + SessionHandlerFactory& factory, + int readDescriptor, + int writeDescriptor = 0, + bool isTrace = false + ); + + // TODO aconway 2006-11-30: SessionContext::send should take auto_ptr + virtual void send(qpid::framing::AMQFrame* frame) { + send(std::auto_ptr<qpid::framing::AMQFrame>(frame)); + } + + virtual void send(std::auto_ptr<qpid::framing::AMQFrame> frame); + + virtual void close(); + + private: + typedef boost::ptr_deque<qpid::framing::AMQFrame> FrameQueue; + typedef void (EventChannelConnection::*MemberFnPtr)(); + struct ScopedBusy; + + void startWrite(); + void endWrite(); + void startRead(); + void endInitRead(); + void endRead(); + void closeNoThrow(); + void closeOnException(MemberFnPtr); + bool shouldContinue(bool& flag); + + static const size_t bufferSize; + + Monitor monitor; + + int readFd, writeFd; + ReadEvent readEvent; + WriteEvent writeEvent; + Event::Callback readCallback; + bool isWriting; + bool isClosed; + AtomicCount busyThreads; + + EventChannelThreads::shared_ptr threads; + std::auto_ptr<SessionHandler> handler; + qpid::framing::Buffer in, out; + FrameQueue writeFrames; + bool isTrace; + + friend struct ScopedBusy; +}; + + +}} // namespace qpid::sys + + + +#endif /*!_posix_EventChannelConnection_h*/ |