src/stream/ZStreamRW_FIFO.h

00001 /*  @(#) $Id: ZStreamRW_FIFO.h,v 1.1 2007/07/16 17:55:01 agreen Exp $ */
00002 
00003 /* ------------------------------------------------------------
00004 Copyright (c) 2007 Andrew Green
00005 http://www.zoolib.org
00006 
00007 Permission is hereby granted, free of charge, to any person obtaining a copy
00008 of this software and associated documentation files (the "Software"), to deal
00009 in the Software without restriction, including without limitation the rights
00010 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
00011 copies of the Software, and to permit persons to whom the Software is
00012 furnished to do so, subject to the following conditions:
00013 
00014 The above copyright notice and this permission notice shall be included in
00015 all copies or substantial portions of the Software.
00016 
00017 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
00018 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
00019 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
00020 COPYRIGHT HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
00021 AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
00022 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
00023 ------------------------------------------------------------ */
00024 
00025 #ifndef __ZStreamRW_FIFO__
00026 #define __ZStreamRW_FIFO__ 1
00027 
00028 #include "zconfig.h"
00029 
00030 #include "ZStream.h"
00031 #include "ZThread.h"
00032 
00033 #include <deque>
00034 
00035 // =================================================================================================
00036 #pragma mark -
00037 #pragma mark * ZStreamRW_FIFO
00038 
00041 class ZStreamRW_FIFO : public ZStreamR, public ZStreamW
00042         {
00043 public:
00044         ZStreamRW_FIFO();
00045         ZStreamRW_FIFO(size_t iMaxSize);
00046         ~ZStreamRW_FIFO();
00047 
00048 // From ZStreamR
00049         virtual void Imp_Read(void* iDest, size_t iCount, size_t* oCountRead);
00050         virtual size_t Imp_CountReadable();
00051 
00052 // From ZStreamW
00053         virtual void Imp_Write(const void* iSource, size_t iCount, size_t* oCountWritten);
00054 
00055 // Our protocol
00056         void Close();
00057         bool IsClosed();
00058 
00059 private:
00060         ZMutex fMutex;
00061         ZCondition fCondition;
00062         bool fClosed;
00063         size_t fMaxSize;
00064         std::deque<uint8> fBuffer;
00065         };
00066 
00067 #endif // __ZStreamRW_FIFO__

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