TCPSocketConnectionArdu.cpp

00001 /* Copyright (C) 2012 mbed.org, MIT License
00002  *
00003  * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
00004  * and associated documentation files (the "Software"), to deal in the Software without restriction,
00005  * including without limitation the rights to use, copy, modify, merge, publish, distribute,
00006  * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
00007  * furnished to do so, subject to the following conditions:
00008  *
00009  * The above copyright notice and this permission notice shall be included in all copies or
00010  * substantial portions of the Software.
00011  *
00012  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
00013  * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
00014  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
00015  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
00016  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
00017  */
00018 
00019 #include "TCPSocketConnectionArdu.h"
00020 
00021  
00022 ssize_t TCPSocketConnectionArdu::write(uint8_t b) { 
00023     return write((char*)&b,1); 
00024 }
00025 
00026 /** Send data to the remote host.
00027 \param data The buffer to send to the host.
00028 \param length The length of the buffer to send.
00029 \return the number of written bytes on success (>=0) or -1 on failure
00030  */
00031 ssize_t TCPSocketConnectionArdu::write(const void *buf, size_t size)  {
00032     return send((char*)buf, size);
00033 }
00034 
00035 int TCPSocketConnectionArdu::available(){
00036     return eth->wait_readable(_sock_fd, 1500, 0);
00037 }
00038 
00039 int TCPSocketConnectionArdu::read(){
00040     uint8_t b;
00041     if(receive((char*)b, 1) > 0) return b;
00042     return -1;
00043 }
00044 
00045 ssize_t TCPSocketConnectionArdu::read(void *buf, size_t size) {
00046     return receive((char*)buf, size);
00047 }
00048 
00049 int TCPSocketConnectionArdu::readBytes(uint8_t* buf, size_t size) { return read(buf,size);}
00050 
00051 int TCPSocketConnectionArdu::peek(){
00052     if(available()==0) return -1;
00053     return available();
00054 }
00055 
00056 void TCPSocketConnectionArdu::flush() {
00057     while(available()>0) read();
00058 }
00059 
00060 void TCPSocketConnectionArdu::stop(){
00061   if (_sock_fd == -1)
00062     return;
00063 
00064   // attempt to close the connection gracefully (send a FIN to other side)
00065   TCPSocketConnection::close();
00066   _sock_fd = -1;
00067     
00068 }
00069 
00070 /** Check if the socket is connected
00071 \return true if connected, false otherwise.
00072 */
00073 uint8_t TCPSocketConnectionArdu::connected(){
00074     return is_connected();
00075 }
00076 
00077 TCPSocketConnectionArdu::operator bool() { return _sock_fd != -1;}
00078