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Diffstat (limited to 'cpp/src/qpid/sys/AsynchIO.h')
-rw-r--r-- | cpp/src/qpid/sys/AsynchIO.h | 160 |
1 files changed, 0 insertions, 160 deletions
diff --git a/cpp/src/qpid/sys/AsynchIO.h b/cpp/src/qpid/sys/AsynchIO.h deleted file mode 100644 index 50da8fa4fc..0000000000 --- a/cpp/src/qpid/sys/AsynchIO.h +++ /dev/null @@ -1,160 +0,0 @@ -#ifndef _sys_AsynchIO -#define _sys_AsynchIO -/* - * - * 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 "qpid/sys/IntegerTypes.h" -#include "qpid/CommonImportExport.h" - -#include <string.h> - -#include <boost/function.hpp> -#include <boost/shared_ptr.hpp> - -namespace qpid { -namespace sys { - -class Socket; -class Poller; - -/* - * Asynchronous acceptor: accepts connections then does a callback with the - * accepted fd - */ -class AsynchAcceptor { -public: - typedef boost::function1<void, const Socket&> Callback; - - QPID_COMMON_EXTERN static AsynchAcceptor* create(const Socket& s, Callback callback); - virtual ~AsynchAcceptor() {}; - virtual void start(boost::shared_ptr<Poller> poller) = 0; -}; - -/* - * Asynchronous connector: starts the process of initiating a connection and - * invokes a callback when completed or failed. - */ -class AsynchConnector { -public: - typedef boost::function1<void, const Socket&> ConnectedCallback; - typedef boost::function3<void, const Socket&, int, const std::string&> FailedCallback; - - // Call create() to allocate a new AsynchConnector object with the - // specified poller, addressing, and callbacks. - // This method is implemented in platform-specific code to - // create a correctly typed object. The platform code also manages - // deletes. To correctly manage heaps when needed, the allocate and - // delete should both be done from the same class/library. - QPID_COMMON_EXTERN static AsynchConnector* create(const Socket& s, - std::string hostname, - uint16_t port, - ConnectedCallback connCb, - FailedCallback failCb); - virtual void start(boost::shared_ptr<Poller> poller) = 0; - virtual void stop() {}; -protected: - AsynchConnector() {} - virtual ~AsynchConnector() {} -}; - -struct AsynchIOBufferBase { - char* const bytes; - const int32_t byteCount; - int32_t dataStart; - int32_t dataCount; - - AsynchIOBufferBase(char* const b, const int32_t s) : - bytes(b), - byteCount(s), - dataStart(0), - dataCount(0) - {} - - virtual ~AsynchIOBufferBase() - {} - - void squish() { - if (dataStart != 0) { - ::memmove(bytes, bytes + dataStart, dataCount); - dataStart = 0; - } - } -}; - -/* - * Asychronous reader/writer: - * Reader accepts buffers to read into; reads into the provided buffers - * and then does a callback with the buffer and amount read. Optionally it - * can callback when there is something to read but no buffer to read it into. - * - * Writer accepts a buffer and queues it for writing; can also be given - * a callback for when writing is "idle" (ie fd is writable, but nothing - * to write). - */ -class AsynchIO { -public: - typedef AsynchIOBufferBase BufferBase; - - typedef boost::function2<void, AsynchIO&, BufferBase*> ReadCallback; - typedef boost::function1<void, AsynchIO&> EofCallback; - typedef boost::function1<void, AsynchIO&> DisconnectCallback; - typedef boost::function2<void, AsynchIO&, const Socket&> ClosedCallback; - typedef boost::function1<void, AsynchIO&> BuffersEmptyCallback; - typedef boost::function1<void, AsynchIO&> IdleCallback; - typedef boost::function1<void, AsynchIO&> RequestCallback; - - // Call create() to allocate a new AsynchIO object with the specified - // callbacks. This method is implemented in platform-specific code to - // create a correctly typed object. The platform code also manages - // deletes. To correctly manage heaps when needed, the allocate and - // delete should both be done from the same class/library. - QPID_COMMON_EXTERN static AsynchIO* create(const Socket& s, - ReadCallback rCb, - EofCallback eofCb, - DisconnectCallback disCb, - ClosedCallback cCb = 0, - BuffersEmptyCallback eCb = 0, - IdleCallback iCb = 0); -public: - virtual void queueForDeletion() = 0; - - virtual void start(boost::shared_ptr<Poller> poller) = 0; - virtual void queueReadBuffer(BufferBase* buff) = 0; - virtual void unread(BufferBase* buff) = 0; - virtual void queueWrite(BufferBase* buff) = 0; - virtual void notifyPendingWrite() = 0; - virtual void queueWriteClose() = 0; - virtual bool writeQueueEmpty() = 0; - virtual void startReading() = 0; - virtual void stopReading() = 0; - virtual void requestCallback(RequestCallback) = 0; - virtual BufferBase* getQueuedBuffer() = 0; - -protected: - // Derived class manages lifetime; must be constructed using the - // static create() method. Deletes not allowed from outside. - AsynchIO() {} - virtual ~AsynchIO() {} -}; - -}} - -#endif // _sys_AsynchIO |