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ESP8266InterfaceTiny/Socket/TCPSocketConnection.cpp@0:82d5445a9461, 2015-12-18 (annotated)

Committer:
jksoft
Date:
Fri Dec 18 04:47:41 2015 +0000
Revision:
0:82d5445a9461
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Who changed what in which revision?

UserRevisionLine numberNew contents of line
jksoft 0:82d5445a9461 1 /* Copyright (C) 2012 mbed.org, MIT License
jksoft 0:82d5445a9461 2 *
jksoft 0:82d5445a9461 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
jksoft 0:82d5445a9461 4 * and associated documentation files (the "Software"), to deal in the Software without restriction,
jksoft 0:82d5445a9461 5 * including without limitation the rights to use, copy, modify, merge, publish, distribute,
jksoft 0:82d5445a9461 6 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
jksoft 0:82d5445a9461 7 * furnished to do so, subject to the following conditions:
jksoft 0:82d5445a9461 8 *
jksoft 0:82d5445a9461 9 * The above copyright notice and this permission notice shall be included in all copies or
jksoft 0:82d5445a9461 10 * substantial portions of the Software.
jksoft 0:82d5445a9461 11 *
jksoft 0:82d5445a9461 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
jksoft 0:82d5445a9461 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
jksoft 0:82d5445a9461 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
jksoft 0:82d5445a9461 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
jksoft 0:82d5445a9461 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
jksoft 0:82d5445a9461 17 */
jksoft 0:82d5445a9461 18 #include "TCPSocketConnection.h"
jksoft 0:82d5445a9461 19 #include <cstring>
jksoft 0:82d5445a9461 20 #include <algorithm>
jksoft 0:82d5445a9461 21 #include "SoftSerialSendOnry.h"
jksoft 0:82d5445a9461 22
jksoft 0:82d5445a9461 23 extern SoftSerialSendOnry pc;
jksoft 0:82d5445a9461 24
jksoft 0:82d5445a9461 25 using std::memset;
jksoft 0:82d5445a9461 26 using std::memcpy;
jksoft 0:82d5445a9461 27
jksoft 0:82d5445a9461 28 //Debug is disabled by default
jksoft 0:82d5445a9461 29 #if 0
jksoft 0:82d5445a9461 30 #define DBG(x, ...) pc.printf("[TCPConnection : DBG]"x" \t[%s,%d]\r\n", ##__VA_ARGS__,__FILE__,__LINE__);
jksoft 0:82d5445a9461 31 #define WARN(x, ...) pc.printf("[TCPConnection: WARN]"x" \t[%s,%d]\r\n", ##__VA_ARGS__,__FILE__,__LINE__);
jksoft 0:82d5445a9461 32 #define ERR(x, ...) pc.printf("[TCPConnection : ERR]"x" \t[%s,%d]\r\n", ##__VA_ARGS__,__FILE__,__LINE__);
jksoft 0:82d5445a9461 33 #else
jksoft 0:82d5445a9461 34 #define DBG(x, ...)
jksoft 0:82d5445a9461 35 #define WARN(x, ...)
jksoft 0:82d5445a9461 36 #define ERR(x, ...)
jksoft 0:82d5445a9461 37 #endif
jksoft 0:82d5445a9461 38
jksoft 0:82d5445a9461 39 TCPSocketConnection::TCPSocketConnection() :
jksoft 0:82d5445a9461 40 _is_connected(false)
jksoft 0:82d5445a9461 41 {
jksoft 0:82d5445a9461 42 }
jksoft 0:82d5445a9461 43
jksoft 0:82d5445a9461 44 int TCPSocketConnection::connect(const char* host, const int port)
jksoft 0:82d5445a9461 45 {
jksoft 0:82d5445a9461 46 // if (init_socket(SOCK_STREAM) < 0)
jksoft 0:82d5445a9461 47 // return -1;
jksoft 0:82d5445a9461 48 //
jksoft 0:82d5445a9461 49 if (set_address(host, port) != 0)
jksoft 0:82d5445a9461 50 return -1;
jksoft 0:82d5445a9461 51 //
jksoft 0:82d5445a9461 52 // if (lwip_connect(_sock_fd, (const struct sockaddr *) &_remoteHost, sizeof(_remoteHost)) < 0) {
jksoft 0:82d5445a9461 53 // close();
jksoft 0:82d5445a9461 54 // return -1;
jksoft 0:82d5445a9461 55 // }
jksoft 0:82d5445a9461 56 // _is_connected = true;
jksoft 0:82d5445a9461 57
jksoft 0:82d5445a9461 58 _is_connected = ESP8266->start(ESP_TCP_TYPE,_ipAddress,_port);
jksoft 0:82d5445a9461 59 if(_is_connected) { //success
jksoft 0:82d5445a9461 60 return 0;
jksoft 0:82d5445a9461 61 } else { // fail
jksoft 0:82d5445a9461 62 return -1;
jksoft 0:82d5445a9461 63 }
jksoft 0:82d5445a9461 64 }
jksoft 0:82d5445a9461 65
jksoft 0:82d5445a9461 66 bool TCPSocketConnection::is_connected(void)
jksoft 0:82d5445a9461 67 {
jksoft 0:82d5445a9461 68 return _is_connected;
jksoft 0:82d5445a9461 69 }
jksoft 0:82d5445a9461 70
jksoft 0:82d5445a9461 71 int TCPSocketConnection::send(char* data, int length)
jksoft 0:82d5445a9461 72 {
jksoft 0:82d5445a9461 73 if (!_is_connected) {
jksoft 0:82d5445a9461 74 ERR("TCPSocketConnection::receive() - _is_connected is false : you cant receive data until you connect to a socket!");
jksoft 0:82d5445a9461 75 return -1;
jksoft 0:82d5445a9461 76 }
jksoft 0:82d5445a9461 77 Timer tmr;
jksoft 0:82d5445a9461 78 int idx = 0;
jksoft 0:82d5445a9461 79 tmr.start();
jksoft 0:82d5445a9461 80 while ((tmr.read_ms() < _timeout) || _blocking) {
jksoft 0:82d5445a9461 81
jksoft 0:82d5445a9461 82 idx += wifi->send(data, length);
jksoft 0:82d5445a9461 83
jksoft 0:82d5445a9461 84 if (idx == length)
jksoft 0:82d5445a9461 85 return idx;
jksoft 0:82d5445a9461 86 }
jksoft 0:82d5445a9461 87 return (idx == 0) ? -1 : idx;
jksoft 0:82d5445a9461 88
jksoft 0:82d5445a9461 89 //return wifi->send(data,length);
jksoft 0:82d5445a9461 90 //
jksoft 0:82d5445a9461 91 // if (!_blocking) {
jksoft 0:82d5445a9461 92 // TimeInterval timeout(_timeout);
jksoft 0:82d5445a9461 93 // if (wait_writable(timeout) != 0)
jksoft 0:82d5445a9461 94 // return -1;
jksoft 0:82d5445a9461 95 // }
jksoft 0:82d5445a9461 96 //
jksoft 0:82d5445a9461 97 // int n = lwip_send(_sock_fd, data, length, 0);
jksoft 0:82d5445a9461 98 // _is_connected = (n != 0);
jksoft 0:82d5445a9461 99 //
jksoft 0:82d5445a9461 100 // return n;
jksoft 0:82d5445a9461 101
jksoft 0:82d5445a9461 102 }
jksoft 0:82d5445a9461 103
jksoft 0:82d5445a9461 104 // -1 if unsuccessful, else number of bytes written
jksoft 0:82d5445a9461 105 int TCPSocketConnection::send_all(char* data, int length)
jksoft 0:82d5445a9461 106 {
jksoft 0:82d5445a9461 107 // if ((_sock_fd < 0) || !_is_connected)
jksoft 0:82d5445a9461 108 // return -1;
jksoft 0:82d5445a9461 109 //
jksoft 0:82d5445a9461 110 // int writtenLen = 0;
jksoft 0:82d5445a9461 111 // TimeInterval timeout(_timeout);
jksoft 0:82d5445a9461 112 // while (writtenLen < length) {
jksoft 0:82d5445a9461 113 // if (!_blocking) {
jksoft 0:82d5445a9461 114 // // Wait for socket to be writeable
jksoft 0:82d5445a9461 115 // if (wait_writable(timeout) != 0)
jksoft 0:82d5445a9461 116 // return writtenLen;
jksoft 0:82d5445a9461 117 // }
jksoft 0:82d5445a9461 118 //
jksoft 0:82d5445a9461 119 // int ret = lwip_send(_sock_fd, data + writtenLen, length - writtenLen, 0);
jksoft 0:82d5445a9461 120 // if (ret > 0) {
jksoft 0:82d5445a9461 121 // writtenLen += ret;
jksoft 0:82d5445a9461 122 // continue;
jksoft 0:82d5445a9461 123 // } else if (ret == 0) {
jksoft 0:82d5445a9461 124 // _is_connected = false;
jksoft 0:82d5445a9461 125 // return writtenLen;
jksoft 0:82d5445a9461 126 // } else {
jksoft 0:82d5445a9461 127 // return -1; //Connnection error
jksoft 0:82d5445a9461 128 // }
jksoft 0:82d5445a9461 129 // }
jksoft 0:82d5445a9461 130 // return writtenLen;
jksoft 0:82d5445a9461 131 return send(data,length); // just remap to send
jksoft 0:82d5445a9461 132 }
jksoft 0:82d5445a9461 133
jksoft 0:82d5445a9461 134 int TCPSocketConnection::receive(char* buffer, int length)
jksoft 0:82d5445a9461 135 {
jksoft 0:82d5445a9461 136 if (!_is_connected) {
jksoft 0:82d5445a9461 137 ERR("TCPSocketConnection::receive() - _is_connected is false : you cant receive data until you connect to a socket!");
jksoft 0:82d5445a9461 138 return -1;
jksoft 0:82d5445a9461 139 }
jksoft 0:82d5445a9461 140 Timer tmr;
jksoft 0:82d5445a9461 141 int idx = 0;
jksoft 0:82d5445a9461 142 int nb_available = 0;
jksoft 0:82d5445a9461 143 int time = -1;
jksoft 0:82d5445a9461 144
jksoft 0:82d5445a9461 145 //make this the non-blocking case and return if <= 0
jksoft 0:82d5445a9461 146 // remember to change the config to blocking
jksoft 0:82d5445a9461 147 // if ( ! _blocking) {
jksoft 0:82d5445a9461 148 // if ( wifi.readable <= 0 ) {
jksoft 0:82d5445a9461 149 // return (wifi.readable);
jksoft 0:82d5445a9461 150 // }
jksoft 0:82d5445a9461 151 // }
jksoft 0:82d5445a9461 152 //---
jksoft 0:82d5445a9461 153 tmr.start();
jksoft 0:82d5445a9461 154 if (_blocking) {
jksoft 0:82d5445a9461 155 while (1) {
jksoft 0:82d5445a9461 156 nb_available = wifi->readable();
jksoft 0:82d5445a9461 157 if (nb_available != 0) {
jksoft 0:82d5445a9461 158 break;
jksoft 0:82d5445a9461 159 }
jksoft 0:82d5445a9461 160 }
jksoft 0:82d5445a9461 161 }
jksoft 0:82d5445a9461 162 //---
jksoft 0:82d5445a9461 163 // blocking case
jksoft 0:82d5445a9461 164 else {
jksoft 0:82d5445a9461 165 tmr.reset();
jksoft 0:82d5445a9461 166
jksoft 0:82d5445a9461 167 while (time < _timeout) {
jksoft 0:82d5445a9461 168 nb_available = wifi->readable();
jksoft 0:82d5445a9461 169 if (nb_available < 0) return nb_available;
jksoft 0:82d5445a9461 170 if (nb_available > 0) break ;
jksoft 0:82d5445a9461 171 time = tmr.read_ms();
jksoft 0:82d5445a9461 172 }
jksoft 0:82d5445a9461 173
jksoft 0:82d5445a9461 174 if (nb_available == 0) return nb_available;
jksoft 0:82d5445a9461 175 }
jksoft 0:82d5445a9461 176
jksoft 0:82d5445a9461 177 // change this to < 20 mS timeout per byte to detect end of packet gap
jksoft 0:82d5445a9461 178 // this may not work due to buffering at the UART interface
jksoft 0:82d5445a9461 179 tmr.reset();
jksoft 0:82d5445a9461 180 // while ( tmr.read_ms() < 20 ) {
jksoft 0:82d5445a9461 181 // if ( wifi.readable() && (idx < length) ) {
jksoft 0:82d5445a9461 182 // buffer[idx++] = wifi->getc();
jksoft 0:82d5445a9461 183 // tmr.reset();
jksoft 0:82d5445a9461 184 // }
jksoft 0:82d5445a9461 185 // if ( idx == length ) {
jksoft 0:82d5445a9461 186 // break;
jksoft 0:82d5445a9461 187 // }
jksoft 0:82d5445a9461 188 // }
jksoft 0:82d5445a9461 189 //---
jksoft 0:82d5445a9461 190 while (time < _timeout) {
jksoft 0:82d5445a9461 191
jksoft 0:82d5445a9461 192 nb_available = wifi->readable();
jksoft 0:82d5445a9461 193 //for (int i = 0; i < min(nb_available, length); i++) {
jksoft 0:82d5445a9461 194 for (int i = 0; i < min(nb_available, (length-idx)); i++) {
jksoft 0:82d5445a9461 195 buffer[idx] = wifi->getc();
jksoft 0:82d5445a9461 196 idx++;
jksoft 0:82d5445a9461 197 }
jksoft 0:82d5445a9461 198 if (idx == length) {
jksoft 0:82d5445a9461 199 break;
jksoft 0:82d5445a9461 200 }
jksoft 0:82d5445a9461 201 time = tmr.read_ms();
jksoft 0:82d5445a9461 202 }
jksoft 0:82d5445a9461 203 //---
jksoft 0:82d5445a9461 204 return (idx == 0) ? -1 : idx;
jksoft 0:82d5445a9461 205
jksoft 0:82d5445a9461 206 //************************ original code below
jksoft 0:82d5445a9461 207 //
jksoft 0:82d5445a9461 208 // if (!_blocking) {
jksoft 0:82d5445a9461 209 // TimeInterval timeout(_timeout);
jksoft 0:82d5445a9461 210 // if (wait_readable(timeout) != 0)
jksoft 0:82d5445a9461 211 // return -1;
jksoft 0:82d5445a9461 212 // }
jksoft 0:82d5445a9461 213 //
jksoft 0:82d5445a9461 214 // int n = lwip_recv(_sock_fd, data, length, 0);
jksoft 0:82d5445a9461 215 // _is_connected = (n != 0);
jksoft 0:82d5445a9461 216 //
jksoft 0:82d5445a9461 217 // return n;
jksoft 0:82d5445a9461 218
jksoft 0:82d5445a9461 219 }
jksoft 0:82d5445a9461 220
jksoft 0:82d5445a9461 221 // -1 if unsuccessful, else number of bytes received
jksoft 0:82d5445a9461 222 int TCPSocketConnection::receive_all(char* data, int length)
jksoft 0:82d5445a9461 223 {
jksoft 0:82d5445a9461 224 //ERR("receive_all() not yet implimented");
jksoft 0:82d5445a9461 225 // if ((_sock_fd < 0) || !_is_connected)
jksoft 0:82d5445a9461 226 // return -1;
jksoft 0:82d5445a9461 227 //
jksoft 0:82d5445a9461 228 // int readLen = 0;
jksoft 0:82d5445a9461 229 // TimeInterval timeout(_timeout);
jksoft 0:82d5445a9461 230 // while (readLen < length) {
jksoft 0:82d5445a9461 231 // if (!_blocking) {
jksoft 0:82d5445a9461 232 // //Wait for socket to be readable
jksoft 0:82d5445a9461 233 // if (wait_readable(timeout) != 0)
jksoft 0:82d5445a9461 234 // return readLen;
jksoft 0:82d5445a9461 235 // }
jksoft 0:82d5445a9461 236 //
jksoft 0:82d5445a9461 237 // int ret = lwip_recv(_sock_fd, data + readLen, length - readLen, 0);
jksoft 0:82d5445a9461 238 // if (ret > 0) {
jksoft 0:82d5445a9461 239 // readLen += ret;
jksoft 0:82d5445a9461 240 // } else if (ret == 0) {
jksoft 0:82d5445a9461 241 // _is_connected = false;
jksoft 0:82d5445a9461 242 // return readLen;
jksoft 0:82d5445a9461 243 // } else {
jksoft 0:82d5445a9461 244 // return -1; //Connnection error
jksoft 0:82d5445a9461 245 // }
jksoft 0:82d5445a9461 246 // }
jksoft 0:82d5445a9461 247 // return readLen;
jksoft 0:82d5445a9461 248 receive(data,length);
jksoft 0:82d5445a9461 249 }