Samuel Mokrani / WiflyInterface

wifly/socket interface for wifly modules

Dependents:   WiFi neurGAI_WIFI thingspeak thingspeak2

Socket/TCPSocketConnection.cpp@13:108340829acc, 2012-08-24 (annotated)

Committer:
samux
Date:
Fri Aug 24 13:25:55 2012 +0000
Revision:
13:108340829acc
Parent:
11:b912f91e3212 
reduce buffer size

Who changed what in which revision?

UserRevisionLine numberNew contents of line
samux 1:8f04181f9ad8 1 /* Copyright (C) 2012 mbed.org, MIT License
samux 1:8f04181f9ad8 2 *
samux 1:8f04181f9ad8 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
samux 1:8f04181f9ad8 4 * and associated documentation files (the "Software"), to deal in the Software without restriction,
samux 1:8f04181f9ad8 5 * including without limitation the rights to use, copy, modify, merge, publish, distribute,
samux 1:8f04181f9ad8 6 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
samux 1:8f04181f9ad8 7 * furnished to do so, subject to the following conditions:
samux 1:8f04181f9ad8 8 *
samux 1:8f04181f9ad8 9 * The above copyright notice and this permission notice shall be included in all copies or
samux 1:8f04181f9ad8 10 * substantial portions of the Software.
samux 1:8f04181f9ad8 11 *
samux 1:8f04181f9ad8 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
samux 1:8f04181f9ad8 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
samux 1:8f04181f9ad8 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
samux 1:8f04181f9ad8 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
samux 1:8f04181f9ad8 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
samux 1:8f04181f9ad8 17 */
samux 1:8f04181f9ad8 18
samux 1:8f04181f9ad8 19 #include "TCPSocketConnection.h"
samux 1:8f04181f9ad8 20 #include <algorithm>
samux 1:8f04181f9ad8 21
samux 1:8f04181f9ad8 22 TCPSocketConnection::TCPSocketConnection() {}
samux 1:8f04181f9ad8 23
samux 1:8f04181f9ad8 24 int TCPSocketConnection::connect(const char* host, const int port)
samux 11:b912f91e3212 25 {
samux 11:b912f91e3212 26 if (!wifi->connect(host, port))
samux 1:8f04181f9ad8 27 return -1;
samux 1:8f04181f9ad8 28 wifi->flush();
samux 1:8f04181f9ad8 29 return 0;
samux 1:8f04181f9ad8 30 }
samux 1:8f04181f9ad8 31
samux 1:8f04181f9ad8 32 bool TCPSocketConnection::is_connected(void)
samux 1:8f04181f9ad8 33 {
samux 1:8f04181f9ad8 34 return wifi->is_connected();
samux 1:8f04181f9ad8 35 }
samux 1:8f04181f9ad8 36
samux 1:8f04181f9ad8 37 int TCPSocketConnection::send(char* data, int length)
samux 1:8f04181f9ad8 38 {
samux 1:8f04181f9ad8 39 Timer tmr;
samux 1:8f04181f9ad8 40
samux 1:8f04181f9ad8 41 if (!_blocking) {
samux 1:8f04181f9ad8 42 tmr.start();
samux 1:8f04181f9ad8 43 while (tmr.read_ms() < _timeout) {
samux 1:8f04181f9ad8 44 if (wifi->writeable())
samux 1:8f04181f9ad8 45 break;
samux 1:8f04181f9ad8 46 }
samux 1:8f04181f9ad8 47 if (tmr.read_ms() >= _timeout) {
samux 1:8f04181f9ad8 48 return -1;
samux 1:8f04181f9ad8 49 }
samux 1:8f04181f9ad8 50 }
samux 1:8f04181f9ad8 51 return wifi->send(data, length);
samux 1:8f04181f9ad8 52 }
samux 1:8f04181f9ad8 53
samux 1:8f04181f9ad8 54 // -1 if unsuccessful, else number of bytes written
samux 1:8f04181f9ad8 55 int TCPSocketConnection::send_all(char* data, int length)
samux 1:8f04181f9ad8 56 {
samux 1:8f04181f9ad8 57 Timer tmr;
samux 1:8f04181f9ad8 58 int idx = 0;
samux 1:8f04181f9ad8 59 tmr.start();
samux 1:8f04181f9ad8 60
samux 1:8f04181f9ad8 61 while ((tmr.read_ms() < _timeout) || _blocking) {
samux 1:8f04181f9ad8 62
samux 1:8f04181f9ad8 63 idx += wifi->send(data, length);
samux 1:8f04181f9ad8 64
samux 1:8f04181f9ad8 65 if (idx == length)
samux 1:8f04181f9ad8 66 return idx;
samux 1:8f04181f9ad8 67 }
samux 1:8f04181f9ad8 68 return (idx == 0) ? -1 : idx;
samux 1:8f04181f9ad8 69 }
samux 1:8f04181f9ad8 70
samux 1:8f04181f9ad8 71 // -1 if unsuccessful, else number of bytes received
samux 1:8f04181f9ad8 72 int TCPSocketConnection::receive(char* data, int length)
samux 1:8f04181f9ad8 73 {
samux 1:8f04181f9ad8 74 Timer tmr;
samux 6:f281180726e8 75 int time = -1;
samux 6:f281180726e8 76
samux 6:f281180726e8 77
samux 1:8f04181f9ad8 78 if (!_blocking) {
samux 1:8f04181f9ad8 79 tmr.start();
samux 6:f281180726e8 80 while (time < _timeout + 20) {
samux 6:f281180726e8 81 if (wifi->readable()) {
samux 1:8f04181f9ad8 82 break;
samux 6:f281180726e8 83 }
samux 6:f281180726e8 84 time = tmr.read_ms();
samux 1:8f04181f9ad8 85 }
samux 6:f281180726e8 86 if (time >= _timeout + 20) {
samux 1:8f04181f9ad8 87 return -1;
samux 6:f281180726e8 88 }
samux 1:8f04181f9ad8 89 }
samux 1:8f04181f9ad8 90
samux 6:f281180726e8 91
samux 1:8f04181f9ad8 92 while(!wifi->readable());
samux 1:8f04181f9ad8 93 int nb_available = wifi->readable();
samux 1:8f04181f9ad8 94 for (int i = 0; i < min(nb_available, length); i++) {
samux 1:8f04181f9ad8 95 data[i] = wifi->getc();
samux 1:8f04181f9ad8 96 }
samux 6:f281180726e8 97
samux 1:8f04181f9ad8 98 return min(nb_available, length);
samux 1:8f04181f9ad8 99 }
samux 1:8f04181f9ad8 100
samux 1:8f04181f9ad8 101
samux 1:8f04181f9ad8 102 // -1 if unsuccessful, else number of bytes received
samux 1:8f04181f9ad8 103 int TCPSocketConnection::receive_all(char* data, int length)
samux 1:8f04181f9ad8 104 {
samux 1:8f04181f9ad8 105 Timer tmr;
samux 1:8f04181f9ad8 106 int idx = 0;
samux 6:f281180726e8 107 int time = -1;
samux 1:8f04181f9ad8 108
samux 1:8f04181f9ad8 109 tmr.start();
samux 6:f281180726e8 110
samux 6:f281180726e8 111 while (time < _timeout || _blocking) {
samux 1:8f04181f9ad8 112
samux 1:8f04181f9ad8 113 int nb_available = wifi->readable();
samux 1:8f04181f9ad8 114 for (int i = 0; i < min(nb_available, length); i++) {
samux 1:8f04181f9ad8 115 data[idx++] = wifi->getc();
samux 1:8f04181f9ad8 116 }
samux 1:8f04181f9ad8 117
samux 1:8f04181f9ad8 118 if (idx == length)
samux 6:f281180726e8 119 break;
samux 6:f281180726e8 120
samux 6:f281180726e8 121 time = tmr.read_ms();
samux 1:8f04181f9ad8 122 }
samux 1:8f04181f9ad8 123
samux 1:8f04181f9ad8 124 return (idx == 0) ? -1 : idx;
samux 1:8f04181f9ad8 125 }