CK Sin / Mbed 2 deprecated Ethernetwebsocket

Ethernetwebsoc

Dependencies:   C12832_lcd LM75B WebSocketClient mbed-rtos mbed Socket lwip-eth lwip-sys lwip

EthernetInterface/Socket/UDPSocket.cpp@0:0ed2a7c7190c, 2013-05-31 (annotated)

Committer:
GordonSin
Date:
Fri May 31 04:09:54 2013 +0000
Revision:
0:0ed2a7c7190c
31/5/2013;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
GordonSin 0:0ed2a7c7190c 1 /* Copyright (C) 2012 mbed.org, MIT License
GordonSin 0:0ed2a7c7190c 2 *
GordonSin 0:0ed2a7c7190c 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
GordonSin 0:0ed2a7c7190c 4 * and associated documentation files (the "Software"), to deal in the Software without restriction,
GordonSin 0:0ed2a7c7190c 5 * including without limitation the rights to use, copy, modify, merge, publish, distribute,
GordonSin 0:0ed2a7c7190c 6 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
GordonSin 0:0ed2a7c7190c 7 * furnished to do so, subject to the following conditions:
GordonSin 0:0ed2a7c7190c 8 *
GordonSin 0:0ed2a7c7190c 9 * The above copyright notice and this permission notice shall be included in all copies or
GordonSin 0:0ed2a7c7190c 10 * substantial portions of the Software.
GordonSin 0:0ed2a7c7190c 11 *
GordonSin 0:0ed2a7c7190c 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
GordonSin 0:0ed2a7c7190c 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
GordonSin 0:0ed2a7c7190c 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
GordonSin 0:0ed2a7c7190c 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
GordonSin 0:0ed2a7c7190c 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
GordonSin 0:0ed2a7c7190c 17 */
GordonSin 0:0ed2a7c7190c 18
GordonSin 0:0ed2a7c7190c 19 #include "Socket/UDPSocket.h"
GordonSin 0:0ed2a7c7190c 20
GordonSin 0:0ed2a7c7190c 21 #include <cstring>
GordonSin 0:0ed2a7c7190c 22
GordonSin 0:0ed2a7c7190c 23 using std::memset;
GordonSin 0:0ed2a7c7190c 24
GordonSin 0:0ed2a7c7190c 25 UDPSocket::UDPSocket() {
GordonSin 0:0ed2a7c7190c 26 }
GordonSin 0:0ed2a7c7190c 27
GordonSin 0:0ed2a7c7190c 28 int UDPSocket::init(void) {
GordonSin 0:0ed2a7c7190c 29 return init_socket(SOCK_DGRAM);
GordonSin 0:0ed2a7c7190c 30 }
GordonSin 0:0ed2a7c7190c 31
GordonSin 0:0ed2a7c7190c 32 // Server initialization
GordonSin 0:0ed2a7c7190c 33 int UDPSocket::bind(int port) {
GordonSin 0:0ed2a7c7190c 34 if (init_socket(SOCK_DGRAM) < 0)
GordonSin 0:0ed2a7c7190c 35 return -1;
GordonSin 0:0ed2a7c7190c 36
GordonSin 0:0ed2a7c7190c 37 struct sockaddr_in localHost;
GordonSin 0:0ed2a7c7190c 38 std::memset(&localHost, 0, sizeof(localHost));
GordonSin 0:0ed2a7c7190c 39
GordonSin 0:0ed2a7c7190c 40 localHost.sin_family = AF_INET;
GordonSin 0:0ed2a7c7190c 41 localHost.sin_port = htons(port);
GordonSin 0:0ed2a7c7190c 42 localHost.sin_addr.s_addr = INADDR_ANY;
GordonSin 0:0ed2a7c7190c 43
GordonSin 0:0ed2a7c7190c 44 if (lwip_bind(_sock_fd, (const struct sockaddr *) &localHost, sizeof(localHost)) < 0) {
GordonSin 0:0ed2a7c7190c 45 close();
GordonSin 0:0ed2a7c7190c 46 return -1;
GordonSin 0:0ed2a7c7190c 47 }
GordonSin 0:0ed2a7c7190c 48
GordonSin 0:0ed2a7c7190c 49 return 0;
GordonSin 0:0ed2a7c7190c 50 }
GordonSin 0:0ed2a7c7190c 51
GordonSin 0:0ed2a7c7190c 52 // -1 if unsuccessful, else number of bytes written
GordonSin 0:0ed2a7c7190c 53 int UDPSocket::sendTo(Endpoint &remote, char *packet, int length) {
GordonSin 0:0ed2a7c7190c 54 if (_sock_fd < 0)
GordonSin 0:0ed2a7c7190c 55 return -1;
GordonSin 0:0ed2a7c7190c 56
GordonSin 0:0ed2a7c7190c 57 if (!_blocking) {
GordonSin 0:0ed2a7c7190c 58 TimeInterval timeout(_timeout);
GordonSin 0:0ed2a7c7190c 59 if (wait_writable(timeout) != 0)
GordonSin 0:0ed2a7c7190c 60 return 0;
GordonSin 0:0ed2a7c7190c 61 }
GordonSin 0:0ed2a7c7190c 62
GordonSin 0:0ed2a7c7190c 63 return lwip_sendto(_sock_fd, packet, length, 0, (const struct sockaddr *) &remote._remoteHost, sizeof(remote._remoteHost));
GordonSin 0:0ed2a7c7190c 64 }
GordonSin 0:0ed2a7c7190c 65
GordonSin 0:0ed2a7c7190c 66 // -1 if unsuccessful, else number of bytes received
GordonSin 0:0ed2a7c7190c 67 int UDPSocket::receiveFrom(Endpoint &remote, char *buffer, int length) {
GordonSin 0:0ed2a7c7190c 68 if (_sock_fd < 0)
GordonSin 0:0ed2a7c7190c 69 return -1;
GordonSin 0:0ed2a7c7190c 70
GordonSin 0:0ed2a7c7190c 71 if (!_blocking) {
GordonSin 0:0ed2a7c7190c 72 TimeInterval timeout(_timeout);
GordonSin 0:0ed2a7c7190c 73 if (wait_readable(timeout) != 0)
GordonSin 0:0ed2a7c7190c 74 return 0;
GordonSin 0:0ed2a7c7190c 75 }
GordonSin 0:0ed2a7c7190c 76 remote.reset_address();
GordonSin 0:0ed2a7c7190c 77 socklen_t remoteHostLen = sizeof(remote._remoteHost);
GordonSin 0:0ed2a7c7190c 78 return lwip_recvfrom(_sock_fd, buffer, length, 0, (struct sockaddr*) &remote._remoteHost, &remoteHostLen);
GordonSin 0:0ed2a7c7190c 79 }