mbed.org implementation of the abstract SmartREST library for the Cumulocity Platform SmartREST protocol.
Dependents: MbedSmartRestMain MbedSmartRestMain
MbedDataSource.cpp
- Committer:
- Cumulocity
- Date:
- 2014-11-15
- Revision:
- 11:e1bee9a77652
- Parent:
- 0:099f76422485
File content as of revision 11:e1bee9a77652:
/* * MbedDataSource.cpp * * Created on: Feb 1, 2013 * * Authors: Vincent Wochnik <v.wochnik@gmail.com> * * Copyright (c) 2013 Cumulocity GmbH * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ #include "MbedDataSource.h" #include "stdio.h" MbedDataSource::MbedDataSource(TCPSocketConnection& sock) : _sock(sock), _timeout(0), _isTimedOut(false) { _offset = _len = 0; } MbedDataSource::~MbedDataSource() { } char MbedDataSource::read() { while (_offset == _len) { if (!receive()) return 0; } return _buf[_offset++]; } uint8_t MbedDataSource::status() { if (!_sock.is_connected()) return DS_STATUS_CLOSED; if (_isTimedOut) return DS_STATUS_TIMEOUT; return DS_STATUS_OK; } void MbedDataSource::setTimeout(size_t timeout) { _timeout = timeout; } bool MbedDataSource::receive() { int ret; if (status() != DS_STATUS_OK) return false; _sock.set_blocking(true, _timeout); ret = _sock.receive(_buf, MBED_SOURCE_BUFFER_SIZE); if (ret < 0) { _isTimedOut = true; return false; } _len = (size_t)ret; _offset = 0; return true; } void MbedDataSource::reset() { _len = _offset = 0; _isTimedOut = false; }