MbedDataSource.h

00001 /*
00002  * MbedDataSource.h
00003  *
00004  * Created on: Feb 1, 2013
00005  * * Authors: Vincent Wochnik <v.wochnik@gmail.com>
00006  *
00007  * Copyright (c) 2013 Cumulocity GmbH
00008  *
00009  * Permission is hereby granted, free of charge, to any person obtaining
00010  * a copy of this software and associated documentation files (the
00011  * "Software"), to deal in the Software without restriction, including
00012  * without limitation the rights to use, copy, modify, merge, publish,
00013  * distribute, sublicense, and/or sell copies of the Software, and to
00014  * permit persons to whom the Software is furnished to do so, subject to
00015  * the following conditions:
00016  *
00017  * The above copyright notice and this permission notice shall be
00018  * included in all copies or substantial portions of the Software.
00019  *
00020  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
00021  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
00022  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
00023  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
00024  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
00025  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
00026  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
00027  */
00028 
00029 #ifndef MBEDDATASOURCE_H
00030 #define MBEDDATASOURCE_H
00031 
00032 #include <stddef.h>
00033 #include "AbstractDataSource.h"
00034 #include "TCPSocketConnection.h"
00035 
00036 #define MBED_SOURCE_BUFFER_SIZE 60
00037 
00038 class MbedClient;
00039 
00040 class MbedDataSource : public AbstractDataSource
00041 {
00042 public:
00043     MbedDataSource(TCPSocketConnection& sock);
00044     ~MbedDataSource();
00045 
00046     char read();
00047     uint8_t status();
00048 
00049 protected:
00050     void setTimeout(size_t);
00051     bool receive();
00052     void reset();
00053 
00054 private:
00055     TCPSocketConnection& _sock;
00056     char _buf[MBED_SOURCE_BUFFER_SIZE];
00057     size_t _len, _offset, _timeout;
00058     bool _isTimedOut;
00059 
00060 friend class MbedClient;
00061 };
00062 
00063 #endif