CK Sin / Mbed 2 deprecated Ethernetwebsocket

Ethernetwebsoc

Dependencies:   C12832_lcd LM75B WebSocketClient mbed-rtos mbed Socket lwip-eth lwip-sys lwip

EthernetInterface/Socket/TCPSocketConnection.cpp@0:0ed2a7c7190c, 2013-05-31 (annotated)

Committer:
GordonSin
Date:
Fri May 31 04:09:54 2013 +0000
Revision:
0:0ed2a7c7190c
31/5/2013;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
GordonSin 0:0ed2a7c7190c 1 /* Copyright (C) 2012 mbed.org, MIT License
GordonSin 0:0ed2a7c7190c 2 *
GordonSin 0:0ed2a7c7190c 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
GordonSin 0:0ed2a7c7190c 4 * and associated documentation files (the "Software"), to deal in the Software without restriction,
GordonSin 0:0ed2a7c7190c 5 * including without limitation the rights to use, copy, modify, merge, publish, distribute,
GordonSin 0:0ed2a7c7190c 6 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
GordonSin 0:0ed2a7c7190c 7 * furnished to do so, subject to the following conditions:
GordonSin 0:0ed2a7c7190c 8 *
GordonSin 0:0ed2a7c7190c 9 * The above copyright notice and this permission notice shall be included in all copies or
GordonSin 0:0ed2a7c7190c 10 * substantial portions of the Software.
GordonSin 0:0ed2a7c7190c 11 *
GordonSin 0:0ed2a7c7190c 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
GordonSin 0:0ed2a7c7190c 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
GordonSin 0:0ed2a7c7190c 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
GordonSin 0:0ed2a7c7190c 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
GordonSin 0:0ed2a7c7190c 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
GordonSin 0:0ed2a7c7190c 17 */
GordonSin 0:0ed2a7c7190c 18 #include "TCPSocketConnection.h"
GordonSin 0:0ed2a7c7190c 19 #include <cstring>
GordonSin 0:0ed2a7c7190c 20
GordonSin 0:0ed2a7c7190c 21 using std::memset;
GordonSin 0:0ed2a7c7190c 22 using std::memcpy;
GordonSin 0:0ed2a7c7190c 23
GordonSin 0:0ed2a7c7190c 24 TCPSocketConnection::TCPSocketConnection() :
GordonSin 0:0ed2a7c7190c 25 _is_connected(false) {
GordonSin 0:0ed2a7c7190c 26 }
GordonSin 0:0ed2a7c7190c 27
GordonSin 0:0ed2a7c7190c 28 int TCPSocketConnection::connect(const char* host, const int port) {
GordonSin 0:0ed2a7c7190c 29 if (init_socket(SOCK_STREAM) < 0)
GordonSin 0:0ed2a7c7190c 30 return -1;
GordonSin 0:0ed2a7c7190c 31
GordonSin 0:0ed2a7c7190c 32 if (set_address(host, port) != 0)
GordonSin 0:0ed2a7c7190c 33 return -1;
GordonSin 0:0ed2a7c7190c 34
GordonSin 0:0ed2a7c7190c 35 if (lwip_connect(_sock_fd, (const struct sockaddr *) &_remoteHost, sizeof(_remoteHost)) < 0) {
GordonSin 0:0ed2a7c7190c 36 close();
GordonSin 0:0ed2a7c7190c 37 return -1;
GordonSin 0:0ed2a7c7190c 38 }
GordonSin 0:0ed2a7c7190c 39 _is_connected = true;
GordonSin 0:0ed2a7c7190c 40
GordonSin 0:0ed2a7c7190c 41 return 0;
GordonSin 0:0ed2a7c7190c 42 }
GordonSin 0:0ed2a7c7190c 43
GordonSin 0:0ed2a7c7190c 44 bool TCPSocketConnection::is_connected(void) {
GordonSin 0:0ed2a7c7190c 45 return _is_connected;
GordonSin 0:0ed2a7c7190c 46 }
GordonSin 0:0ed2a7c7190c 47
GordonSin 0:0ed2a7c7190c 48 int TCPSocketConnection::send(char* data, int length) {
GordonSin 0:0ed2a7c7190c 49 if ((_sock_fd < 0) || !_is_connected)
GordonSin 0:0ed2a7c7190c 50 return -1;
GordonSin 0:0ed2a7c7190c 51
GordonSin 0:0ed2a7c7190c 52 if (!_blocking) {
GordonSin 0:0ed2a7c7190c 53 TimeInterval timeout(_timeout);
GordonSin 0:0ed2a7c7190c 54 if (wait_writable(timeout) != 0)
GordonSin 0:0ed2a7c7190c 55 return -1;
GordonSin 0:0ed2a7c7190c 56 }
GordonSin 0:0ed2a7c7190c 57
GordonSin 0:0ed2a7c7190c 58 int n = lwip_send(_sock_fd, data, length, 0);
GordonSin 0:0ed2a7c7190c 59 _is_connected = (n != 0);
GordonSin 0:0ed2a7c7190c 60
GordonSin 0:0ed2a7c7190c 61 return n;
GordonSin 0:0ed2a7c7190c 62 }
GordonSin 0:0ed2a7c7190c 63
GordonSin 0:0ed2a7c7190c 64 // -1 if unsuccessful, else number of bytes written
GordonSin 0:0ed2a7c7190c 65 int TCPSocketConnection::send_all(char* data, int length) {
GordonSin 0:0ed2a7c7190c 66 if ((_sock_fd < 0) || !_is_connected)
GordonSin 0:0ed2a7c7190c 67 return -1;
GordonSin 0:0ed2a7c7190c 68
GordonSin 0:0ed2a7c7190c 69 size_t writtenLen = 0;
GordonSin 0:0ed2a7c7190c 70 TimeInterval timeout(_timeout);
GordonSin 0:0ed2a7c7190c 71 while (writtenLen < length) {
GordonSin 0:0ed2a7c7190c 72 if (!_blocking) {
GordonSin 0:0ed2a7c7190c 73 // Wait for socket to be writeable
GordonSin 0:0ed2a7c7190c 74 if (wait_writable(timeout) != 0)
GordonSin 0:0ed2a7c7190c 75 return writtenLen;
GordonSin 0:0ed2a7c7190c 76 }
GordonSin 0:0ed2a7c7190c 77
GordonSin 0:0ed2a7c7190c 78 int ret = lwip_send(_sock_fd, data + writtenLen, length - writtenLen, 0);
GordonSin 0:0ed2a7c7190c 79 if (ret > 0) {
GordonSin 0:0ed2a7c7190c 80 writtenLen += ret;
GordonSin 0:0ed2a7c7190c 81 continue;
GordonSin 0:0ed2a7c7190c 82 } else if (ret == 0) {
GordonSin 0:0ed2a7c7190c 83 _is_connected = false;
GordonSin 0:0ed2a7c7190c 84 return writtenLen;
GordonSin 0:0ed2a7c7190c 85 } else {
GordonSin 0:0ed2a7c7190c 86 return -1; //Connnection error
GordonSin 0:0ed2a7c7190c 87 }
GordonSin 0:0ed2a7c7190c 88 }
GordonSin 0:0ed2a7c7190c 89 return writtenLen;
GordonSin 0:0ed2a7c7190c 90 }
GordonSin 0:0ed2a7c7190c 91
GordonSin 0:0ed2a7c7190c 92 int TCPSocketConnection::receive(char* data, int length) {
GordonSin 0:0ed2a7c7190c 93 if ((_sock_fd < 0) || !_is_connected)
GordonSin 0:0ed2a7c7190c 94 return -1;
GordonSin 0:0ed2a7c7190c 95
GordonSin 0:0ed2a7c7190c 96 if (!_blocking) {
GordonSin 0:0ed2a7c7190c 97 TimeInterval timeout(_timeout);
GordonSin 0:0ed2a7c7190c 98 if (wait_readable(timeout) != 0)
GordonSin 0:0ed2a7c7190c 99 return -1;
GordonSin 0:0ed2a7c7190c 100 }
GordonSin 0:0ed2a7c7190c 101
GordonSin 0:0ed2a7c7190c 102 int n = lwip_recv(_sock_fd, data, length, 0);
GordonSin 0:0ed2a7c7190c 103 _is_connected = (n != 0);
GordonSin 0:0ed2a7c7190c 104
GordonSin 0:0ed2a7c7190c 105 return n;
GordonSin 0:0ed2a7c7190c 106 }
GordonSin 0:0ed2a7c7190c 107
GordonSin 0:0ed2a7c7190c 108 // -1 if unsuccessful, else number of bytes received
GordonSin 0:0ed2a7c7190c 109 int TCPSocketConnection::receive_all(char* data, int length) {
GordonSin 0:0ed2a7c7190c 110 if ((_sock_fd < 0) || !_is_connected)
GordonSin 0:0ed2a7c7190c 111 return -1;
GordonSin 0:0ed2a7c7190c 112
GordonSin 0:0ed2a7c7190c 113 size_t readLen = 0;
GordonSin 0:0ed2a7c7190c 114 TimeInterval timeout(_timeout);
GordonSin 0:0ed2a7c7190c 115 while (readLen < length) {
GordonSin 0:0ed2a7c7190c 116 if (!_blocking) {
GordonSin 0:0ed2a7c7190c 117 //Wait for socket to be readable
GordonSin 0:0ed2a7c7190c 118 if (wait_readable(timeout) != 0)
GordonSin 0:0ed2a7c7190c 119 return readLen;
GordonSin 0:0ed2a7c7190c 120 }
GordonSin 0:0ed2a7c7190c 121
GordonSin 0:0ed2a7c7190c 122 int ret = lwip_recv(_sock_fd, data + readLen, length - readLen, 0);
GordonSin 0:0ed2a7c7190c 123 if (ret > 0) {
GordonSin 0:0ed2a7c7190c 124 readLen += ret;
GordonSin 0:0ed2a7c7190c 125 } else if (ret == 0) {
GordonSin 0:0ed2a7c7190c 126 _is_connected = false;
GordonSin 0:0ed2a7c7190c 127 return readLen;
GordonSin 0:0ed2a7c7190c 128 } else {
GordonSin 0:0ed2a7c7190c 129 return -1; //Connnection error
GordonSin 0:0ed2a7c7190c 130 }
GordonSin 0:0ed2a7c7190c 131 }
GordonSin 0:0ed2a7c7190c 132 return readLen;
GordonSin 0:0ed2a7c7190c 133 }