TCPSocketConnection.h

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 #ifndef TCPSOCKET_H
00020 #define TCPSOCKET_H
00021 
00022 #include "Socket/Socket.h"
00023 #include "Socket/Endpoint.h"
00024 #include "lwip/tcp.h"
00025 
00026 /**
00027 TCP socket connection
00028 */
00029 class TCPSocketConnection : public Socket, public Endpoint {
00030     friend class TCPSocketServer;
00031 
00032 public:
00033     /** TCP socket connection
00034     */
00035     TCPSocketConnection();
00036 
00037     /** sets the next port used from tcp_new_port
00038     \param port The host's port to connect to.
00039     \return 0
00040     */
00041     int set_source_port(const int port);
00042 
00043     /** Connects this TCP socket to the server
00044     \param host The host to connect to. It can either be an IP Address or a hostname that will be resolved with DNS.
00045     \param port The host's port to connect to.
00046     \return 0 on success, -1 on failure.
00047     */
00048     int connect(const char* host, const int port);
00049 
00050     /** Check if the socket is connected
00051     \return true if connected, false otherwise.
00052     */
00053     bool is_connected(void);
00054 
00055     /** Send data to the remote host.
00056     \param data The buffer to send to the host.
00057     \param length The length of the buffer to send.
00058     \return the number of written bytes on success (>=0) or -1 on failure
00059      */
00060     int send(char* data, int length);
00061 
00062     /** Send all the data to the remote host.
00063     \param data The buffer to send to the host.
00064     \param length The length of the buffer to send.
00065     \return the number of written bytes on success (>=0) or -1 on failure
00066     */
00067     int send_all(char* data, int length);
00068 
00069     /** Receive data from the remote host.
00070     \param data The buffer in which to store the data received from the host.
00071     \param length The maximum length of the buffer.
00072     \return the number of received bytes on success (>=0) or -1 on failure
00073      */
00074     int receive(char* data, int length);
00075 
00076     /** Receive all the data from the remote host.
00077     \param data The buffer in which to store the data received from the host.
00078     \param length The maximum length of the buffer.
00079     \return the number of received bytes on success (>=0) or -1 on failure
00080     */
00081     int receive_all(char* data, int length);
00082 
00083 private:
00084     bool _is_connected;
00085 };
00086 
00087 #endif