Frank Vannieuwkerke / cc3000_hostdriver_mbedsocket

cc3000 hostdriver with the mbed socket interface

Fork of cc3000_hostdriver_mbedsocket by Martin Kojtal

Socket/TCPSocketConnection.cpp@5:245ac5b73132, 2013-09-26 (annotated)

Committer:
Kojto
Date:
Thu Sep 26 19:50:37 2013 +0000
Revision:
5:245ac5b73132
Parent:
3:ad95e296bfbf
Child:
11:5e3771b29385
tcp implementation

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Kojto 5:245ac5b73132 1 /* Copyright (C) 2013 mbed.org, MIT License
Kojto 0:615c697c33b0 2 *
Kojto 0:615c697c33b0 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
Kojto 0:615c697c33b0 4 * and associated documentation files (the "Software"), to deal in the Software without restriction,
Kojto 0:615c697c33b0 5 * including without limitation the rights to use, copy, modify, merge, publish, distribute,
Kojto 0:615c697c33b0 6 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
Kojto 0:615c697c33b0 7 * furnished to do so, subject to the following conditions:
Kojto 0:615c697c33b0 8 *
Kojto 0:615c697c33b0 9 * The above copyright notice and this permission notice shall be included in all copies or
Kojto 0:615c697c33b0 10 * substantial portions of the Software.
Kojto 0:615c697c33b0 11 *
Kojto 0:615c697c33b0 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
Kojto 0:615c697c33b0 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
Kojto 0:615c697c33b0 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
Kojto 0:615c697c33b0 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
Kojto 0:615c697c33b0 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Kojto 0:615c697c33b0 17 */
Kojto 0:615c697c33b0 18
Kojto 0:615c697c33b0 19 #include "TCPSocketConnection.h"
Kojto 0:615c697c33b0 20 #include <algorithm>
Kojto 0:615c697c33b0 21
Kojto 5:245ac5b73132 22 TCPSocketConnection::TCPSocketConnection() : _is_connected(false) {
Kojto 5:245ac5b73132 23 _cc3000_module = cc3000::get_instance();
Kojto 5:245ac5b73132 24 if (_cc3000_module == NULL) {
Kojto 5:245ac5b73132 25 error("Endpoint constructor error: no cc3000 instance available!\r\n");
Kojto 5:245ac5b73132 26 }
Kojto 0:615c697c33b0 27 }
Kojto 0:615c697c33b0 28
Kojto 5:245ac5b73132 29 int TCPSocketConnection::connect(const char *host, const int port) {
Kojto 5:245ac5b73132 30 if (init_socket(SOCK_STREAM, IPPROTO_TCP) < 0) {
Kojto 5:245ac5b73132 31 #if (CC3000_DEBUG == 1)
Kojto 5:245ac5b73132 32 printf("DEBUG: Failed to create tcp socket.\n");
Kojto 5:245ac5b73132 33 #endif
Kojto 5:245ac5b73132 34 return -1;
Kojto 5:245ac5b73132 35 }
Kojto 0:615c697c33b0 36
Kojto 5:245ac5b73132 37 if (set_address(host, port) != 0) {
Kojto 5:245ac5b73132 38 #if (CC3000_DEBUG == 1)
Kojto 5:245ac5b73132 39 printf("DEBUG: Failed to set address (tcp).\n");
Kojto 5:245ac5b73132 40 #endif
Kojto 5:245ac5b73132 41 return -1;
Kojto 5:245ac5b73132 42 }
Kojto 5:245ac5b73132 43
Kojto 5:245ac5b73132 44 if (_cc3000_module->_socket.connect(_sock_fd, (const sockaddr *)&_remote_host, sizeof(_remote_host)) < 0) {
Kojto 5:245ac5b73132 45 #if (CC3000_DEBUG == 1)
Kojto 5:245ac5b73132 46 printf("DEBUG: Failed to connect (tcp).\n");
Kojto 5:245ac5b73132 47 #endif
Kojto 5:245ac5b73132 48 close();
Kojto 5:245ac5b73132 49 return -1;
Kojto 5:245ac5b73132 50 }
Kojto 5:245ac5b73132 51
Kojto 5:245ac5b73132 52 _is_connected = true;
Kojto 5:245ac5b73132 53
Kojto 5:245ac5b73132 54 return 0;
Kojto 0:615c697c33b0 55 }
Kojto 0:615c697c33b0 56
Kojto 5:245ac5b73132 57 bool TCPSocketConnection::is_connected(void) {
Kojto 5:245ac5b73132 58 return _is_connected;
Kojto 5:245ac5b73132 59 }
Kojto 5:245ac5b73132 60
Kojto 5:245ac5b73132 61 int TCPSocketConnection::send(char* data, int length) {
Kojto 5:245ac5b73132 62 if ((_sock_fd < 0) || !_is_connected) {
Kojto 5:245ac5b73132 63 return -1;
Kojto 5:245ac5b73132 64 }
Kojto 0:615c697c33b0 65
Kojto 5:245ac5b73132 66 if (!_blocking) {
Kojto 5:245ac5b73132 67 TimeInterval timeout(_timeout);
Kojto 5:245ac5b73132 68 if (wait_writable(timeout) != 0) {
Kojto 5:245ac5b73132 69 return -1;
Kojto 5:245ac5b73132 70 }
Kojto 5:245ac5b73132 71 }
Kojto 5:245ac5b73132 72
Kojto 5:245ac5b73132 73 int n = _cc3000_module->_socket.send(_sock_fd, data, length, 0);
Kojto 5:245ac5b73132 74 _is_connected = (n != 0);
Kojto 5:245ac5b73132 75
Kojto 5:245ac5b73132 76 return n;
Kojto 0:615c697c33b0 77 }
Kojto 0:615c697c33b0 78
Kojto 5:245ac5b73132 79 int TCPSocketConnection::send_all(char *data, int length) {
Kojto 5:245ac5b73132 80 if ((_sock_fd < 0) || !_is_connected) {
Kojto 5:245ac5b73132 81 return -1;
Kojto 5:245ac5b73132 82 }
Kojto 0:615c697c33b0 83
Kojto 5:245ac5b73132 84 int writtenLen = 0;
Kojto 5:245ac5b73132 85 TimeInterval timeout(_timeout);
Kojto 5:245ac5b73132 86 while (writtenLen < length) {
Kojto 5:245ac5b73132 87 if (!_blocking) {
Kojto 5:245ac5b73132 88 // Wait for socket to be writeable
Kojto 5:245ac5b73132 89 if (wait_writable(timeout) != 0) {
Kojto 5:245ac5b73132 90 return writtenLen;
Kojto 5:245ac5b73132 91 }
Kojto 5:245ac5b73132 92 }
Kojto 5:245ac5b73132 93
Kojto 5:245ac5b73132 94 int ret = _cc3000_module->_socket.send(_sock_fd, data + writtenLen, length - writtenLen, 0);
Kojto 5:245ac5b73132 95 if (ret > 0) {
Kojto 5:245ac5b73132 96 writtenLen += ret;
Kojto 5:245ac5b73132 97 continue;
Kojto 5:245ac5b73132 98 } else if (ret == 0) {
Kojto 5:245ac5b73132 99 _is_connected = false;
Kojto 5:245ac5b73132 100 return writtenLen;
Kojto 5:245ac5b73132 101 } else {
Kojto 5:245ac5b73132 102 return -1; //Connnection error
Kojto 5:245ac5b73132 103 }
Kojto 5:245ac5b73132 104 }
Kojto 5:245ac5b73132 105
Kojto 5:245ac5b73132 106 return writtenLen;
Kojto 0:615c697c33b0 107 }
Kojto 0:615c697c33b0 108
Kojto 5:245ac5b73132 109 int TCPSocketConnection::receive(char *data, int length) {
Kojto 5:245ac5b73132 110 if ((_sock_fd < 0) || !_is_connected) {
Kojto 5:245ac5b73132 111 return -1;
Kojto 5:245ac5b73132 112 }
Kojto 0:615c697c33b0 113
Kojto 5:245ac5b73132 114 if (!_blocking) {
Kojto 5:245ac5b73132 115 TimeInterval timeout(_timeout);
Kojto 5:245ac5b73132 116 if (wait_readable(timeout) != 0)
Kojto 5:245ac5b73132 117 return -1;
Kojto 5:245ac5b73132 118 }
Kojto 5:245ac5b73132 119
Kojto 5:245ac5b73132 120 int n = _cc3000_module->_socket.recv(_sock_fd, data, length, 0);
Kojto 5:245ac5b73132 121 _is_connected = (n != 0);
Kojto 5:245ac5b73132 122
Kojto 5:245ac5b73132 123 return n;
Kojto 0:615c697c33b0 124 }
Kojto 0:615c697c33b0 125
Kojto 5:245ac5b73132 126 int TCPSocketConnection::receive_all(char *data, int length) {
Kojto 5:245ac5b73132 127 if ((_sock_fd < 0) || !_is_connected) {
Kojto 5:245ac5b73132 128 return -1;
Kojto 5:245ac5b73132 129 }
Kojto 0:615c697c33b0 130
Kojto 5:245ac5b73132 131 int readLen = 0;
Kojto 5:245ac5b73132 132 TimeInterval timeout(_timeout);
Kojto 5:245ac5b73132 133 while (readLen < length) {
Kojto 5:245ac5b73132 134 if (!_blocking) {
Kojto 5:245ac5b73132 135 //Wait for socket to be readable
Kojto 5:245ac5b73132 136 if (wait_readable(timeout) != 0)
Kojto 5:245ac5b73132 137 return readLen;
Kojto 5:245ac5b73132 138 }
Kojto 0:615c697c33b0 139
Kojto 5:245ac5b73132 140 int ret = _cc3000_module->_socket.recv(_sock_fd, data + readLen, length - readLen, 0);
Kojto 5:245ac5b73132 141 if (ret > 0) {
Kojto 5:245ac5b73132 142 readLen += ret;
Kojto 5:245ac5b73132 143 } else if (ret == 0) {
Kojto 5:245ac5b73132 144 _is_connected = false;
Kojto 5:245ac5b73132 145 return readLen;
Kojto 5:245ac5b73132 146 } else {
Kojto 5:245ac5b73132 147 return -1; //Connnection error
Kojto 5:245ac5b73132 148 }
Kojto 5:245ac5b73132 149 }
Kojto 5:245ac5b73132 150 return readLen;
Kojto 0:615c697c33b0 151 }