Cumulocity Official / MbedSmartRest

mbed.org implementation of the abstract SmartREST library for the Cumulocity Platform SmartREST protocol.

Dependents:   MbedSmartRestMain MbedSmartRestMain

MbedDataSource.cpp@13:aba98ad2ac1b, 2014-11-15 (annotated)

Committer:
Cumulocity
Date:
Sat Nov 15 12:21:41 2014 +0100
Revision:
13:aba98ad2ac1b
Parent:
11:e1bee9a77652 
Updated from revision 0b898f0efc6d

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Cumulocity 0:099f76422485 1 /*
Cumulocity 0:099f76422485 2 * MbedDataSource.cpp
Cumulocity 0:099f76422485 3 *
Cumulocity 0:099f76422485 4 * Created on: Feb 1, 2013
Cumulocity 0:099f76422485 5 * * Authors: Vincent Wochnik <v.wochnik@gmail.com>
Cumulocity 0:099f76422485 6 *
Cumulocity 0:099f76422485 7 * Copyright (c) 2013 Cumulocity GmbH
Cumulocity 0:099f76422485 8 *
Cumulocity 0:099f76422485 9 * Permission is hereby granted, free of charge, to any person obtaining
Cumulocity 0:099f76422485 10 * a copy of this software and associated documentation files (the
Cumulocity 0:099f76422485 11 * "Software"), to deal in the Software without restriction, including
Cumulocity 0:099f76422485 12 * without limitation the rights to use, copy, modify, merge, publish,
Cumulocity 0:099f76422485 13 * distribute, sublicense, and/or sell copies of the Software, and to
Cumulocity 0:099f76422485 14 * permit persons to whom the Software is furnished to do so, subject to
Cumulocity 0:099f76422485 15 * the following conditions:
Cumulocity 0:099f76422485 16 *
Cumulocity 0:099f76422485 17 * The above copyright notice and this permission notice shall be
Cumulocity 0:099f76422485 18 * included in all copies or substantial portions of the Software.
Cumulocity 0:099f76422485 19 *
Cumulocity 0:099f76422485 20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
Cumulocity 0:099f76422485 21 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
Cumulocity 0:099f76422485 22 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
Cumulocity 0:099f76422485 23 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
Cumulocity 0:099f76422485 24 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
Cumulocity 0:099f76422485 25 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
Cumulocity 0:099f76422485 26 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Cumulocity 0:099f76422485 27 */
Cumulocity 0:099f76422485 28
Cumulocity 0:099f76422485 29 #include "MbedDataSource.h"
Cumulocity 0:099f76422485 30 #include "stdio.h"
Cumulocity 0:099f76422485 31
Cumulocity 11:e1bee9a77652 32 MbedDataSource::MbedDataSource(TCPSocketConnection& sock) :
Cumulocity 11:e1bee9a77652 33 _sock(sock),
Cumulocity 11:e1bee9a77652 34 _timeout(0),
Cumulocity 11:e1bee9a77652 35 _isTimedOut(false)
Cumulocity 0:099f76422485 36 {
Cumulocity 0:099f76422485 37 _offset = _len = 0;
Cumulocity 0:099f76422485 38 }
Cumulocity 0:099f76422485 39
Cumulocity 0:099f76422485 40 MbedDataSource::~MbedDataSource()
Cumulocity 0:099f76422485 41 {
Cumulocity 0:099f76422485 42 }
Cumulocity 0:099f76422485 43
Cumulocity 0:099f76422485 44 char MbedDataSource::read()
Cumulocity 0:099f76422485 45 {
Cumulocity 0:099f76422485 46 while (_offset == _len) {
Cumulocity 0:099f76422485 47 if (!receive())
Cumulocity 0:099f76422485 48 return 0;
Cumulocity 0:099f76422485 49 }
Cumulocity 0:099f76422485 50
Cumulocity 0:099f76422485 51 return _buf[_offset++];
Cumulocity 0:099f76422485 52 }
Cumulocity 0:099f76422485 53
Cumulocity 0:099f76422485 54 uint8_t MbedDataSource::status()
Cumulocity 0:099f76422485 55 {
Cumulocity 0:099f76422485 56 if (!_sock.is_connected())
Cumulocity 0:099f76422485 57 return DS_STATUS_CLOSED;
Cumulocity 0:099f76422485 58
Cumulocity 11:e1bee9a77652 59 if (_isTimedOut)
Cumulocity 0:099f76422485 60 return DS_STATUS_TIMEOUT;
Cumulocity 0:099f76422485 61
Cumulocity 0:099f76422485 62 return DS_STATUS_OK;
Cumulocity 0:099f76422485 63 }
Cumulocity 0:099f76422485 64
Cumulocity 11:e1bee9a77652 65 void MbedDataSource::setTimeout(size_t timeout)
Cumulocity 11:e1bee9a77652 66 {
Cumulocity 11:e1bee9a77652 67 _timeout = timeout;
Cumulocity 11:e1bee9a77652 68 }
Cumulocity 11:e1bee9a77652 69
Cumulocity 0:099f76422485 70 bool MbedDataSource::receive()
Cumulocity 0:099f76422485 71 {
Cumulocity 0:099f76422485 72 int ret;
Cumulocity 0:099f76422485 73
Cumulocity 0:099f76422485 74 if (status() != DS_STATUS_OK)
Cumulocity 0:099f76422485 75 return false;
Cumulocity 0:099f76422485 76
Cumulocity 11:e1bee9a77652 77 _sock.set_blocking(true, _timeout);
Cumulocity 0:099f76422485 78 ret = _sock.receive(_buf, MBED_SOURCE_BUFFER_SIZE);
Cumulocity 0:099f76422485 79
Cumulocity 0:099f76422485 80 if (ret < 0) {
Cumulocity 11:e1bee9a77652 81 _isTimedOut = true;
Cumulocity 0:099f76422485 82 return false;
Cumulocity 0:099f76422485 83 }
Cumulocity 0:099f76422485 84
Cumulocity 0:099f76422485 85 _len = (size_t)ret;
Cumulocity 0:099f76422485 86 _offset = 0;
Cumulocity 0:099f76422485 87
Cumulocity 0:099f76422485 88 return true;
Cumulocity 0:099f76422485 89 }
Cumulocity 0:099f76422485 90
Cumulocity 0:099f76422485 91 void MbedDataSource::reset()
Cumulocity 0:099f76422485 92 {
Cumulocity 0:099f76422485 93 _len = _offset = 0;
Cumulocity 11:e1bee9a77652 94 _isTimedOut = false;
Cumulocity 0:099f76422485 95 }