Suga koubou / Mbed 2 deprecated xively_wattmeter

see http://mbed.org/users/okini3939/notebook/wattmeter-shield-on-mbed/

Dependencies:   mbed

Fork of GSwifi_xively by gs fan

GSwifiInterface/Socket/UDPSocket.cpp@4:9a2415f2ab07, 2013-11-27 (annotated)

Committer:
okini3939
Date:
Wed Nov 27 08:18:45 2013 +0000
Revision:
4:9a2415f2ab07
update GSwifiInterface library

Who changed what in which revision?

UserRevisionLine numberNew contents of line
okini3939 4:9a2415f2ab07 1 /* Copyright (C) 2012 mbed.org, MIT License
okini3939 4:9a2415f2ab07 2 *
okini3939 4:9a2415f2ab07 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
okini3939 4:9a2415f2ab07 4 * and associated documentation files (the "Software"), to deal in the Software without restriction,
okini3939 4:9a2415f2ab07 5 * including without limitation the rights to use, copy, modify, merge, publish, distribute,
okini3939 4:9a2415f2ab07 6 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
okini3939 4:9a2415f2ab07 7 * furnished to do so, subject to the following conditions:
okini3939 4:9a2415f2ab07 8 *
okini3939 4:9a2415f2ab07 9 * The above copyright notice and this permission notice shall be included in all copies or
okini3939 4:9a2415f2ab07 10 * substantial portions of the Software.
okini3939 4:9a2415f2ab07 11 *
okini3939 4:9a2415f2ab07 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
okini3939 4:9a2415f2ab07 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
okini3939 4:9a2415f2ab07 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
okini3939 4:9a2415f2ab07 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
okini3939 4:9a2415f2ab07 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
okini3939 4:9a2415f2ab07 17 */
okini3939 4:9a2415f2ab07 18 /* Copyright (C) 2013 gsfan, MIT License
okini3939 4:9a2415f2ab07 19 * port to the GainSpan Wi-FI module GS1011
okini3939 4:9a2415f2ab07 20 */
okini3939 4:9a2415f2ab07 21
okini3939 4:9a2415f2ab07 22 #include "UDPSocket.h"
okini3939 4:9a2415f2ab07 23
okini3939 4:9a2415f2ab07 24 #include <string>
okini3939 4:9a2415f2ab07 25 #include <algorithm>
okini3939 4:9a2415f2ab07 26
okini3939 4:9a2415f2ab07 27 UDPSocket::UDPSocket()
okini3939 4:9a2415f2ab07 28 {
okini3939 4:9a2415f2ab07 29 endpoint_connected = false;
okini3939 4:9a2415f2ab07 30 }
okini3939 4:9a2415f2ab07 31
okini3939 4:9a2415f2ab07 32 int UDPSocket::init(void)
okini3939 4:9a2415f2ab07 33 {
okini3939 4:9a2415f2ab07 34 _server = false;
okini3939 4:9a2415f2ab07 35 return 0;
okini3939 4:9a2415f2ab07 36 }
okini3939 4:9a2415f2ab07 37
okini3939 4:9a2415f2ab07 38 // Server initialization
okini3939 4:9a2415f2ab07 39 int UDPSocket::bind(int port)
okini3939 4:9a2415f2ab07 40 {
okini3939 4:9a2415f2ab07 41 _port = port;
okini3939 4:9a2415f2ab07 42 _server = true;
okini3939 4:9a2415f2ab07 43 return 0;
okini3939 4:9a2415f2ab07 44 }
okini3939 4:9a2415f2ab07 45
okini3939 4:9a2415f2ab07 46 // -1 if unsuccessful, else number of bytes written
okini3939 4:9a2415f2ab07 47 int UDPSocket::sendTo(Endpoint &remote, char *packet, int length)
okini3939 4:9a2415f2ab07 48 {
okini3939 4:9a2415f2ab07 49 Timer tmr;
okini3939 4:9a2415f2ab07 50 int idx = 0;
okini3939 4:9a2415f2ab07 51
okini3939 4:9a2415f2ab07 52 if (_cid < 0 && _wifi->isAssociated()) {
okini3939 4:9a2415f2ab07 53 // Socket open
okini3939 4:9a2415f2ab07 54 if (_server) {
okini3939 4:9a2415f2ab07 55 _cid = _wifi->listen(GSwifi::PROTO_UDP, _port);
okini3939 4:9a2415f2ab07 56 } else {
okini3939 4:9a2415f2ab07 57 _cid = _wifi->open(GSwifi::PROTO_UDP, remote.get_address(), remote.get_port(), _port);
okini3939 4:9a2415f2ab07 58 }
okini3939 4:9a2415f2ab07 59 if (_cid < 0) return -1;
okini3939 4:9a2415f2ab07 60 }
okini3939 4:9a2415f2ab07 61
okini3939 4:9a2415f2ab07 62 tmr.start();
okini3939 4:9a2415f2ab07 63
okini3939 4:9a2415f2ab07 64 while ((tmr.read_ms() < _timeout) || _blocking) {
okini3939 4:9a2415f2ab07 65
okini3939 4:9a2415f2ab07 66 if (_server) {
okini3939 4:9a2415f2ab07 67 idx += _wifi->sendto(_cid, packet, length, remote.get_address(), remote.get_port());
okini3939 4:9a2415f2ab07 68 } else {
okini3939 4:9a2415f2ab07 69 idx += _wifi->send(_cid, packet, length);
okini3939 4:9a2415f2ab07 70 }
okini3939 4:9a2415f2ab07 71 if (idx < 0) {
okini3939 4:9a2415f2ab07 72 if (!_wifi->isConnected(_cid)) _cid = -1;
okini3939 4:9a2415f2ab07 73 }
okini3939 4:9a2415f2ab07 74
okini3939 4:9a2415f2ab07 75 if (idx == length)
okini3939 4:9a2415f2ab07 76 return idx;
okini3939 4:9a2415f2ab07 77 }
okini3939 4:9a2415f2ab07 78 return (idx == 0) ? -1 : idx;
okini3939 4:9a2415f2ab07 79 }
okini3939 4:9a2415f2ab07 80
okini3939 4:9a2415f2ab07 81 // -1 if unsuccessful, else number of bytes received
okini3939 4:9a2415f2ab07 82 int UDPSocket::receiveFrom(Endpoint &remote, char *buffer, int length)
okini3939 4:9a2415f2ab07 83 {
okini3939 4:9a2415f2ab07 84 Timer tmr;
okini3939 4:9a2415f2ab07 85 int idx = 0;
okini3939 4:9a2415f2ab07 86 int time = -1;
okini3939 4:9a2415f2ab07 87 char ip[16];
okini3939 4:9a2415f2ab07 88 int port;
okini3939 4:9a2415f2ab07 89
okini3939 4:9a2415f2ab07 90 if (_cid < 0 && _wifi->isAssociated()) {
okini3939 4:9a2415f2ab07 91 // Socket open
okini3939 4:9a2415f2ab07 92 if (_server) {
okini3939 4:9a2415f2ab07 93 _cid = _wifi->listen(GSwifi::PROTO_UDP, _port);
okini3939 4:9a2415f2ab07 94 } else {
okini3939 4:9a2415f2ab07 95 _cid = _wifi->open(GSwifi::PROTO_UDP, remote.get_address(), remote.get_port(), _port);
okini3939 4:9a2415f2ab07 96 }
okini3939 4:9a2415f2ab07 97 if (_cid < 0) return -1;
okini3939 4:9a2415f2ab07 98 }
okini3939 4:9a2415f2ab07 99
okini3939 4:9a2415f2ab07 100 if (_blocking) {
okini3939 4:9a2415f2ab07 101 tmr.start();
okini3939 4:9a2415f2ab07 102 while (time < _timeout + 20) {
okini3939 4:9a2415f2ab07 103 if (_wifi->readable(_cid)) {
okini3939 4:9a2415f2ab07 104 break;
okini3939 4:9a2415f2ab07 105 }
okini3939 4:9a2415f2ab07 106 time = tmr.read_ms();
okini3939 4:9a2415f2ab07 107 }
okini3939 4:9a2415f2ab07 108 if (time >= _timeout + 20) {
okini3939 4:9a2415f2ab07 109 return -1;
okini3939 4:9a2415f2ab07 110 }
okini3939 4:9a2415f2ab07 111 }
okini3939 4:9a2415f2ab07 112
okini3939 4:9a2415f2ab07 113 tmr.reset();
okini3939 4:9a2415f2ab07 114 time = -1;
okini3939 4:9a2415f2ab07 115 tmr.start();
okini3939 4:9a2415f2ab07 116
okini3939 4:9a2415f2ab07 117 while (time < _timeout) {
okini3939 4:9a2415f2ab07 118
okini3939 4:9a2415f2ab07 119 if (_server) {
okini3939 4:9a2415f2ab07 120 idx += _wifi->recvfrom(_cid, &buffer[idx], length - idx, ip, &port);
okini3939 4:9a2415f2ab07 121 } else {
okini3939 4:9a2415f2ab07 122 idx += _wifi->recv(_cid, &buffer[idx], length - idx);
okini3939 4:9a2415f2ab07 123 }
okini3939 4:9a2415f2ab07 124 if (idx < 0) {
okini3939 4:9a2415f2ab07 125 if (!_wifi->isConnected(_cid)) _cid = -1;
okini3939 4:9a2415f2ab07 126 return -1;
okini3939 4:9a2415f2ab07 127 }
okini3939 4:9a2415f2ab07 128
okini3939 4:9a2415f2ab07 129 if (idx == length) {
okini3939 4:9a2415f2ab07 130 break;
okini3939 4:9a2415f2ab07 131 }
okini3939 4:9a2415f2ab07 132
okini3939 4:9a2415f2ab07 133 time = tmr.read_ms();
okini3939 4:9a2415f2ab07 134 }
okini3939 4:9a2415f2ab07 135
okini3939 4:9a2415f2ab07 136 if (_server) {
okini3939 4:9a2415f2ab07 137 remote.set_address(ip, port);
okini3939 4:9a2415f2ab07 138 }
okini3939 4:9a2415f2ab07 139 return (idx == 0) ? -1 : idx;
okini3939 4:9a2415f2ab07 140 }