Minsu Lee / WizFi250Interface

RC

Dependents:   WizFi250_AP_HelloWorld

Fork of WizFi250Interface by DongEun Koak

Socket/UDPSocket.cpp@2:eb83da9deb2d, 2014-06-03 (annotated)

Committer:
kaizen
Date:
Tue Jun 03 04:23:37 2014 +0000
Revision:
2:eb83da9deb2d
Parent:
0:f2039204c8f6
Child:
5:8a0702aa91e3
Delete debug message

Who changed what in which revision?

UserRevisionLine numberNew contents of line
kaizen 0:f2039204c8f6 1 /* Copyright (C) 2012 mbed.org, MIT License
kaizen 0:f2039204c8f6 2 *
kaizen 0:f2039204c8f6 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
kaizen 0:f2039204c8f6 4 * and associated documentation files (the "Software"), to deal in the Software without restriction,
kaizen 0:f2039204c8f6 5 * including without limitation the rights to use, copy, modify, merge, publish, distribute,
kaizen 0:f2039204c8f6 6 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
kaizen 0:f2039204c8f6 7 * furnished to do so, subject to the following conditions:
kaizen 0:f2039204c8f6 8 *
kaizen 0:f2039204c8f6 9 * The above copyright notice and this permission notice shall be included in all copies or
kaizen 0:f2039204c8f6 10 * substantial portions of the Software.
kaizen 0:f2039204c8f6 11 *
kaizen 0:f2039204c8f6 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
kaizen 0:f2039204c8f6 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
kaizen 0:f2039204c8f6 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
kaizen 0:f2039204c8f6 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
kaizen 0:f2039204c8f6 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
kaizen 0:f2039204c8f6 17 */
kaizen 0:f2039204c8f6 18 /* Copyright (C) 2014 Wiznet, MIT License
kaizen 0:f2039204c8f6 19 * port to the Wiznet Module WizFi250
kaizen 0:f2039204c8f6 20 */
kaizen 0:f2039204c8f6 21
kaizen 0:f2039204c8f6 22 #include "UDPSocket.h"
kaizen 0:f2039204c8f6 23
kaizen 0:f2039204c8f6 24 #include <string>
kaizen 0:f2039204c8f6 25 #include <algorithm>
kaizen 0:f2039204c8f6 26
kaizen 0:f2039204c8f6 27 UDPSocket::UDPSocket()
kaizen 0:f2039204c8f6 28 {
kaizen 0:f2039204c8f6 29 endpoint_connected = false;
kaizen 0:f2039204c8f6 30 }
kaizen 0:f2039204c8f6 31
kaizen 0:f2039204c8f6 32 int UDPSocket::init(void)
kaizen 0:f2039204c8f6 33 {
kaizen 0:f2039204c8f6 34 _server = false;
kaizen 0:f2039204c8f6 35 return 0;
kaizen 0:f2039204c8f6 36 }
kaizen 0:f2039204c8f6 37
kaizen 0:f2039204c8f6 38 // Server initialization
kaizen 0:f2039204c8f6 39 int UDPSocket::bind(int port)
kaizen 0:f2039204c8f6 40 {
kaizen 0:f2039204c8f6 41 _port = port;
kaizen 0:f2039204c8f6 42 _server = true;
kaizen 0:f2039204c8f6 43 return 0;
kaizen 0:f2039204c8f6 44 }
kaizen 0:f2039204c8f6 45
kaizen 0:f2039204c8f6 46 int UDPSocket::sendTo(Endpoint &remote, char *packet, int length)
kaizen 0:f2039204c8f6 47 {
kaizen 0:f2039204c8f6 48 Timer tmr;
kaizen 0:f2039204c8f6 49 int idx = 0;
kaizen 0:f2039204c8f6 50
kaizen 0:f2039204c8f6 51 if (_cid < 0 && _wizfi250->isAssociated())
kaizen 0:f2039204c8f6 52 {
kaizen 0:f2039204c8f6 53 if (_server)
kaizen 0:f2039204c8f6 54 {
kaizen 0:f2039204c8f6 55 _cid = _wizfi250->listen(WizFi250::PROTO_UDP, _port);
kaizen 0:f2039204c8f6 56 }
kaizen 0:f2039204c8f6 57 else
kaizen 0:f2039204c8f6 58 {
kaizen 0:f2039204c8f6 59 _cid = _wizfi250->open(WizFi250::PROTO_UDP, remote.get_address(), remote.get_port(), _port);
kaizen 0:f2039204c8f6 60 }
kaizen 0:f2039204c8f6 61 if (_cid < 0) return -1;
kaizen 0:f2039204c8f6 62 }
kaizen 0:f2039204c8f6 63
kaizen 0:f2039204c8f6 64 tmr.start();
kaizen 0:f2039204c8f6 65
kaizen 0:f2039204c8f6 66 while ((tmr.read_ms() < _timeout) || _blocking)
kaizen 0:f2039204c8f6 67 {
kaizen 0:f2039204c8f6 68 if(_server)
kaizen 0:f2039204c8f6 69 {
kaizen 0:f2039204c8f6 70 idx += _wizfi250->sendto(_cid, packet, length, remote.get_address(), remote.get_port());
kaizen 0:f2039204c8f6 71 }
kaizen 0:f2039204c8f6 72 else
kaizen 0:f2039204c8f6 73 {
kaizen 0:f2039204c8f6 74 idx += _wizfi250->send(_cid, packet, length);
kaizen 0:f2039204c8f6 75 }
kaizen 0:f2039204c8f6 76 if (idx < 0)
kaizen 0:f2039204c8f6 77 {
kaizen 0:f2039204c8f6 78 if (!_wizfi250->isConnected(_cid)) _cid = -1;
kaizen 0:f2039204c8f6 79 }
kaizen 0:f2039204c8f6 80
kaizen 0:f2039204c8f6 81 if (idx == length)
kaizen 0:f2039204c8f6 82 return idx;
kaizen 0:f2039204c8f6 83 }
kaizen 0:f2039204c8f6 84 return (idx == 0) ? -1 : idx;
kaizen 0:f2039204c8f6 85 }
kaizen 0:f2039204c8f6 86
kaizen 0:f2039204c8f6 87
kaizen 0:f2039204c8f6 88 int UDPSocket::receiveFrom(Endpoint &remote, char *buffer, int length)
kaizen 0:f2039204c8f6 89 {
kaizen 0:f2039204c8f6 90 Timer tmr;
kaizen 0:f2039204c8f6 91 int idx = 0;
kaizen 0:f2039204c8f6 92 int time = -1;
kaizen 0:f2039204c8f6 93 char ip[16];
kaizen 0:f2039204c8f6 94 int port;
kaizen 0:f2039204c8f6 95
kaizen 0:f2039204c8f6 96 if(_cid < 0 && _wizfi250->isAssociated())
kaizen 0:f2039204c8f6 97 {
kaizen 0:f2039204c8f6 98 // Socket open
kaizen 0:f2039204c8f6 99 if (_server) {
kaizen 0:f2039204c8f6 100 _cid = _wizfi250->listen(WizFi250::PROTO_UDP, _port);
kaizen 2:eb83da9deb2d 101 //DBG("TEST CID : %d",_cid);
kaizen 0:f2039204c8f6 102 }
kaizen 0:f2039204c8f6 103 else
kaizen 0:f2039204c8f6 104 {
kaizen 0:f2039204c8f6 105 _cid = _wizfi250->open(WizFi250::PROTO_UDP, remote.get_address(), remote.get_port(), _port);
kaizen 0:f2039204c8f6 106 }
kaizen 0:f2039204c8f6 107 if (_cid < 0) return -1;
kaizen 0:f2039204c8f6 108 }
kaizen 0:f2039204c8f6 109
kaizen 0:f2039204c8f6 110 if (_blocking)
kaizen 0:f2039204c8f6 111 {
kaizen 0:f2039204c8f6 112 tmr.start();
kaizen 0:f2039204c8f6 113 while (time < _timeout + 20)
kaizen 0:f2039204c8f6 114 {
kaizen 0:f2039204c8f6 115 if(_wizfi250->readable(_cid))
kaizen 0:f2039204c8f6 116 {
kaizen 0:f2039204c8f6 117 break;
kaizen 0:f2039204c8f6 118 }
kaizen 0:f2039204c8f6 119 time = tmr.read_ms();
kaizen 0:f2039204c8f6 120 }
kaizen 0:f2039204c8f6 121 if (time >= _timeout + 20)
kaizen 0:f2039204c8f6 122 {
kaizen 0:f2039204c8f6 123 return -1;
kaizen 0:f2039204c8f6 124 }
kaizen 0:f2039204c8f6 125 }
kaizen 0:f2039204c8f6 126
kaizen 0:f2039204c8f6 127 tmr.reset();
kaizen 0:f2039204c8f6 128 time = -1;
kaizen 0:f2039204c8f6 129 tmr.start();
kaizen 0:f2039204c8f6 130
kaizen 0:f2039204c8f6 131 while (time < _timeout)
kaizen 0:f2039204c8f6 132 {
kaizen 0:f2039204c8f6 133 if(_server)
kaizen 0:f2039204c8f6 134 {
kaizen 0:f2039204c8f6 135 idx += _wizfi250->recvfrom(_cid, &buffer[idx], length - idx, ip, &port);
kaizen 0:f2039204c8f6 136 }
kaizen 0:f2039204c8f6 137 else
kaizen 0:f2039204c8f6 138 {
kaizen 0:f2039204c8f6 139 idx += _wizfi250->recv(_cid, &buffer[idx], length - idx);
kaizen 0:f2039204c8f6 140 }
kaizen 0:f2039204c8f6 141
kaizen 0:f2039204c8f6 142 if (idx == length)
kaizen 0:f2039204c8f6 143 break;
kaizen 0:f2039204c8f6 144
kaizen 0:f2039204c8f6 145 time = tmr.read_ms();
kaizen 0:f2039204c8f6 146 }
kaizen 0:f2039204c8f6 147
kaizen 0:f2039204c8f6 148 if (_server)
kaizen 0:f2039204c8f6 149 {
kaizen 0:f2039204c8f6 150 remote.set_address(ip, port);
kaizen 0:f2039204c8f6 151 }
kaizen 0:f2039204c8f6 152
kaizen 0:f2039204c8f6 153 return (idx==0) ? -1 : idx;
kaizen 0:f2039204c8f6 154 }