mirror of https://github.com/ARMmbed/mbed-os.git
60 lines
2.2 KiB
C++
60 lines
2.2 KiB
C++
/* IOStream.h */
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/* Copyright (C) 2012 mbed.org, MIT License
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of this software
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* and associated documentation files (the "Software"), to deal in the Software without restriction,
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* including without limitation the rights to use, copy, modify, merge, publish, distribute,
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* sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all copies or
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* substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
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* BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef IOSTREAM_H_
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#define IOSTREAM_H_
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#include "rtos.h"
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class IStream
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{
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public:
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//IStream();
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//virtual ~IStream();
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//0 for non-blocking (returns immediately), osWaitForever for infinite blocking
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virtual int read(uint8_t* buf, size_t* pLength, size_t maxLength, uint32_t timeout=osWaitForever) = 0;
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virtual size_t available() = 0;
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virtual int waitAvailable(uint32_t timeout=osWaitForever) = 0; //Wait for data to be available
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virtual int abortRead() = 0; //Abort current reading (or waiting) operation
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};
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class OStream
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{
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public:
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//OStream();
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//virtual ~OStream();
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//0 for non-blocking (returns immediately), osWaitForever for infinite blocking
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virtual int write(uint8_t* buf, size_t length, uint32_t timeout=osWaitForever) = 0;
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virtual size_t space() = 0;
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virtual int waitSpace(uint32_t timeout=osWaitForever) = 0; //Wait for space to be available
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virtual int abortWrite() = 0; //Abort current writing (or waiting) operation
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};
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class IOStream : public IStream, public OStream
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{
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public:
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//IOStream();
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//virtual ~IOStream();
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};
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#endif /* IOSTREAM_H_ */
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