Henry Leinen / WiflyInterface

Forked mbed official WiflyInterface (interface for Roving Networks Wifly modules) which includes the possibility to use TCPSocketServer::accept as a non-blocking cal.

Dependents:   WiFlyHTTPServerSample MultiThreadingHTTPServer

Fork of WiflyInterface by mbed official

Socket/TCPSocketConnection.cpp@9:4f6f2f35a21a, 2013-06-05 (annotated)

Committer:
leihen
Date:
Wed Jun 05 23:40:17 2013 +0000
Revision:
9:4f6f2f35a21a
Parent:
1:fb4494783863 
Improved 'Accept' handling.

; Added 'peek' functionality for CBuffer

Who changed what in which revision?

UserRevisionLine numberNew contents of line
samux 1:fb4494783863 1 /* Copyright (C) 2012 mbed.org, MIT License
samux 1:fb4494783863 2 *
samux 1:fb4494783863 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
samux 1:fb4494783863 4 * and associated documentation files (the "Software"), to deal in the Software without restriction,
samux 1:fb4494783863 5 * including without limitation the rights to use, copy, modify, merge, publish, distribute,
samux 1:fb4494783863 6 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
samux 1:fb4494783863 7 * furnished to do so, subject to the following conditions:
samux 1:fb4494783863 8 *
samux 1:fb4494783863 9 * The above copyright notice and this permission notice shall be included in all copies or
samux 1:fb4494783863 10 * substantial portions of the Software.
samux 1:fb4494783863 11 *
samux 1:fb4494783863 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
samux 1:fb4494783863 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
samux 1:fb4494783863 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
samux 1:fb4494783863 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
samux 1:fb4494783863 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
samux 1:fb4494783863 17 */
samux 1:fb4494783863 18
samux 1:fb4494783863 19 #include "TCPSocketConnection.h"
samux 1:fb4494783863 20 #include <algorithm>
samux 1:fb4494783863 21
leihen 9:4f6f2f35a21a 22
samux 1:fb4494783863 23 TCPSocketConnection::TCPSocketConnection() {}
samux 1:fb4494783863 24
samux 1:fb4494783863 25 int TCPSocketConnection::connect(const char* host, const int port)
samux 1:fb4494783863 26 {
samux 1:fb4494783863 27 if (!wifi->connect(host, port))
samux 1:fb4494783863 28 return -1;
samux 1:fb4494783863 29 wifi->flush();
samux 1:fb4494783863 30 return 0;
samux 1:fb4494783863 31 }
samux 1:fb4494783863 32
samux 1:fb4494783863 33 bool TCPSocketConnection::is_connected(void)
samux 1:fb4494783863 34 {
samux 1:fb4494783863 35 return wifi->is_connected();
samux 1:fb4494783863 36 }
samux 1:fb4494783863 37
samux 1:fb4494783863 38 int TCPSocketConnection::send(char* data, int length)
samux 1:fb4494783863 39 {
samux 1:fb4494783863 40 Timer tmr;
samux 1:fb4494783863 41
samux 1:fb4494783863 42 if (!_blocking) {
samux 1:fb4494783863 43 tmr.start();
samux 1:fb4494783863 44 while (tmr.read_ms() < _timeout) {
samux 1:fb4494783863 45 if (wifi->writeable())
samux 1:fb4494783863 46 break;
samux 1:fb4494783863 47 }
samux 1:fb4494783863 48 if (tmr.read_ms() >= _timeout) {
samux 1:fb4494783863 49 return -1;
samux 1:fb4494783863 50 }
samux 1:fb4494783863 51 }
samux 1:fb4494783863 52 return wifi->send(data, length);
samux 1:fb4494783863 53 }
samux 1:fb4494783863 54
samux 1:fb4494783863 55 // -1 if unsuccessful, else number of bytes written
samux 1:fb4494783863 56 int TCPSocketConnection::send_all(char* data, int length)
samux 1:fb4494783863 57 {
samux 1:fb4494783863 58 Timer tmr;
samux 1:fb4494783863 59 int idx = 0;
samux 1:fb4494783863 60 tmr.start();
samux 1:fb4494783863 61
samux 1:fb4494783863 62 while ((tmr.read_ms() < _timeout) || _blocking) {
samux 1:fb4494783863 63
samux 1:fb4494783863 64 idx += wifi->send(data, length);
samux 1:fb4494783863 65
samux 1:fb4494783863 66 if (idx == length)
samux 1:fb4494783863 67 return idx;
samux 1:fb4494783863 68 }
samux 1:fb4494783863 69 return (idx == 0) ? -1 : idx;
samux 1:fb4494783863 70 }
samux 1:fb4494783863 71
samux 1:fb4494783863 72 // -1 if unsuccessful, else number of bytes received
samux 1:fb4494783863 73 int TCPSocketConnection::receive(char* data, int length)
samux 1:fb4494783863 74 {
samux 1:fb4494783863 75 Timer tmr;
samux 1:fb4494783863 76 int time = -1;
samux 1:fb4494783863 77
samux 1:fb4494783863 78
samux 1:fb4494783863 79 if (!_blocking) {
samux 1:fb4494783863 80 tmr.start();
samux 1:fb4494783863 81 while (time < _timeout + 20) {
samux 1:fb4494783863 82 if (wifi->readable()) {
samux 1:fb4494783863 83 break;
samux 1:fb4494783863 84 }
samux 1:fb4494783863 85 time = tmr.read_ms();
samux 1:fb4494783863 86 }
samux 1:fb4494783863 87 if (time >= _timeout + 20) {
samux 1:fb4494783863 88 return -1;
samux 1:fb4494783863 89 }
samux 1:fb4494783863 90 }
samux 1:fb4494783863 91
samux 1:fb4494783863 92
samux 1:fb4494783863 93 while(!wifi->readable());
samux 1:fb4494783863 94 int nb_available = wifi->readable();
samux 1:fb4494783863 95 for (int i = 0; i < min(nb_available, length); i++) {
samux 1:fb4494783863 96 data[i] = wifi->getc();
samux 1:fb4494783863 97 }
samux 1:fb4494783863 98
samux 1:fb4494783863 99 return min(nb_available, length);
samux 1:fb4494783863 100 }
samux 1:fb4494783863 101
samux 1:fb4494783863 102
samux 1:fb4494783863 103 // -1 if unsuccessful, else number of bytes received
samux 1:fb4494783863 104 int TCPSocketConnection::receive_all(char* data, int length)
samux 1:fb4494783863 105 {
samux 1:fb4494783863 106 Timer tmr;
samux 1:fb4494783863 107 int idx = 0;
samux 1:fb4494783863 108 int time = -1;
samux 1:fb4494783863 109
samux 1:fb4494783863 110 tmr.start();
samux 1:fb4494783863 111
samux 1:fb4494783863 112 while (time < _timeout || _blocking) {
samux 1:fb4494783863 113
samux 1:fb4494783863 114 int nb_available = wifi->readable();
samux 1:fb4494783863 115 for (int i = 0; i < min(nb_available, length); i++) {
samux 1:fb4494783863 116 data[idx++] = wifi->getc();
samux 1:fb4494783863 117 }
samux 1:fb4494783863 118
samux 1:fb4494783863 119 if (idx == length)
samux 1:fb4494783863 120 break;
samux 1:fb4494783863 121
samux 1:fb4494783863 122 time = tmr.read_ms();
samux 1:fb4494783863 123 }
samux 1:fb4494783863 124
samux 1:fb4494783863 125 return (idx == 0) ? -1 : idx;
samux 1:fb4494783863 126 }