mbed.org implementation of the abstract SmartREST library for the Cumulocity Platform SmartREST protocol.
Dependents: MbedSmartRestMain MbedSmartRestMain
Diff: MbedDataSink.cpp
- Revision:
- 0:099f76422485
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/MbedDataSink.cpp Thu Jul 03 20:38:04 2014 +0200 @@ -0,0 +1,130 @@ +/* + * MbedDataSink.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 "MbedDataSink.h" +#include "MbedClient.h" +#include <stdlib.h> +#include <string.h> + +#include "mbed.h" + +MbedDataSink::MbedDataSink(TCPSocketConnection& sock) : _len(0), _sock(sock) +{ +} + +MbedDataSink::~MbedDataSink() +{ +} + +size_t MbedDataSink::write(char c) +{ + while (MBED_SINK_BUFFER_SIZE - _len < 1) { + if (!send()) + return 0; + } + + _buf[_len++] = c; + return 1; +} + +size_t MbedDataSink::write(void *buf, size_t length) +{ + size_t sent = 0, len; + + while (sent < length) { + while (MBED_SINK_BUFFER_SIZE - _len < 1) { + if (!send()) + return 0; + } + + if (MBED_SINK_BUFFER_SIZE - _len >= length-sent) + len = length-sent; + else + len = MBED_SINK_BUFFER_SIZE - _len; + + memcpy(_buf+_len, (char*)buf+sent, len); + _len += len; + sent += len; + } + + return length; +} + +size_t MbedDataSink::write(const char *str) +{ + return write((void*)str, strlen(str)); +} + +size_t MbedDataSink::write(unsigned long number) +{ + char str[24]; + + snprintf(str, 24, "%lu", number); + return write(str); +} + +bool MbedDataSink::flush() +{ + while (_len > 0) { + if (!send()) + return false; + } + + return true; +} + +bool MbedDataSink::send() +{ + int ret; + + if (!_sock.is_connected()) + return false; + + _sock.set_blocking(true); + ret = _sock.send(_buf, _len); + + //TODO: fix bug in u-blox so no longer wait is needed + wait(0.5); + + if (ret < 0){ + puts("Send failed."); + return false; + } + + // move rest of buffer + if ((ret > 0) && (ret < _len)) + memmove(_buf, _buf+ret, _len-ret); + + _len -= ret; + return true; +} + +void MbedDataSink::reset() +{ + _len = 0; +}