Yasushi TAUCHI / Mbed 2 deprecated giken9_HTMLServer_Sample

ソースの整理中ですが、利用はできます。

Dependencies:   EthernetInterface HttpServer TextLCD mbed-rpc mbed-rtos mbed Socket lwip-eth lwip-sys lwip

EthernetInterface/Socket/UDPSocket.cpp@2:14b689a85306, 2014-03-12 (annotated)

Committer:
yueee_yt
Date:
Wed Mar 12 04:39:15 2014 +0000
Revision:
2:14b689a85306
Parent:
0:7766f6712673 
bug fix

Who changed what in which revision?

UserRevisionLine numberNew contents of line
yueee_yt 0:7766f6712673 1 /* Copyright (C) 2012 mbed.org, MIT License
yueee_yt 0:7766f6712673 2 *
yueee_yt 0:7766f6712673 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
yueee_yt 0:7766f6712673 4 * and associated documentation files (the "Software"), to deal in the Software without restriction,
yueee_yt 0:7766f6712673 5 * including without limitation the rights to use, copy, modify, merge, publish, distribute,
yueee_yt 0:7766f6712673 6 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
yueee_yt 0:7766f6712673 7 * furnished to do so, subject to the following conditions:
yueee_yt 0:7766f6712673 8 *
yueee_yt 0:7766f6712673 9 * The above copyright notice and this permission notice shall be included in all copies or
yueee_yt 0:7766f6712673 10 * substantial portions of the Software.
yueee_yt 0:7766f6712673 11 *
yueee_yt 0:7766f6712673 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
yueee_yt 0:7766f6712673 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
yueee_yt 0:7766f6712673 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
yueee_yt 0:7766f6712673 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
yueee_yt 0:7766f6712673 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
yueee_yt 0:7766f6712673 17 */
yueee_yt 0:7766f6712673 18
yueee_yt 0:7766f6712673 19 #include "Socket/UDPSocket.h"
yueee_yt 0:7766f6712673 20
yueee_yt 0:7766f6712673 21 #include <cstring>
yueee_yt 0:7766f6712673 22
yueee_yt 0:7766f6712673 23 using std::memset;
yueee_yt 0:7766f6712673 24
yueee_yt 0:7766f6712673 25 UDPSocket::UDPSocket() {
yueee_yt 0:7766f6712673 26 }
yueee_yt 0:7766f6712673 27
yueee_yt 0:7766f6712673 28 int UDPSocket::init(void) {
yueee_yt 0:7766f6712673 29 return init_socket(SOCK_DGRAM);
yueee_yt 0:7766f6712673 30 }
yueee_yt 0:7766f6712673 31
yueee_yt 0:7766f6712673 32 // Server initialization
yueee_yt 0:7766f6712673 33 int UDPSocket::bind(int port) {
yueee_yt 0:7766f6712673 34 if (init_socket(SOCK_DGRAM) < 0)
yueee_yt 0:7766f6712673 35 return -1;
yueee_yt 0:7766f6712673 36
yueee_yt 0:7766f6712673 37 struct sockaddr_in localHost;
yueee_yt 0:7766f6712673 38 std::memset(&localHost, 0, sizeof(localHost));
yueee_yt 0:7766f6712673 39
yueee_yt 0:7766f6712673 40 localHost.sin_family = AF_INET;
yueee_yt 0:7766f6712673 41 localHost.sin_port = htons(port);
yueee_yt 0:7766f6712673 42 localHost.sin_addr.s_addr = INADDR_ANY;
yueee_yt 0:7766f6712673 43
yueee_yt 0:7766f6712673 44 if (lwip_bind(_sock_fd, (const struct sockaddr *) &localHost, sizeof(localHost)) < 0) {
yueee_yt 0:7766f6712673 45 close();
yueee_yt 0:7766f6712673 46 return -1;
yueee_yt 0:7766f6712673 47 }
yueee_yt 0:7766f6712673 48
yueee_yt 0:7766f6712673 49 return 0;
yueee_yt 0:7766f6712673 50 }
yueee_yt 0:7766f6712673 51
yueee_yt 0:7766f6712673 52 int UDPSocket::join_multicast_group(const char* address) {
yueee_yt 0:7766f6712673 53 struct ip_mreq mreq;
yueee_yt 0:7766f6712673 54
yueee_yt 0:7766f6712673 55 // Set up group address
yueee_yt 0:7766f6712673 56 mreq.imr_multiaddr.s_addr = inet_addr(address);
yueee_yt 0:7766f6712673 57 mreq.imr_interface.s_addr = htonl(INADDR_ANY);
yueee_yt 0:7766f6712673 58
yueee_yt 0:7766f6712673 59 return set_option(IPPROTO_IP, IP_ADD_MEMBERSHIP, &mreq, sizeof(mreq));
yueee_yt 0:7766f6712673 60 }
yueee_yt 0:7766f6712673 61
yueee_yt 0:7766f6712673 62 int UDPSocket::set_broadcasting(bool broadcast) {
yueee_yt 0:7766f6712673 63 int option = (broadcast) ? (1) : (0);
yueee_yt 0:7766f6712673 64 return set_option(SOL_SOCKET, SO_BROADCAST, &option, sizeof(option));
yueee_yt 0:7766f6712673 65 }
yueee_yt 0:7766f6712673 66
yueee_yt 0:7766f6712673 67 // -1 if unsuccessful, else number of bytes written
yueee_yt 0:7766f6712673 68 int UDPSocket::sendTo(Endpoint &remote, char *packet, int length) {
yueee_yt 0:7766f6712673 69 if (_sock_fd < 0)
yueee_yt 0:7766f6712673 70 return -1;
yueee_yt 0:7766f6712673 71
yueee_yt 0:7766f6712673 72 if (!_blocking) {
yueee_yt 0:7766f6712673 73 TimeInterval timeout(_timeout);
yueee_yt 0:7766f6712673 74 if (wait_writable(timeout) != 0)
yueee_yt 0:7766f6712673 75 return 0;
yueee_yt 0:7766f6712673 76 }
yueee_yt 0:7766f6712673 77
yueee_yt 0:7766f6712673 78 return lwip_sendto(_sock_fd, packet, length, 0, (const struct sockaddr *) &remote._remoteHost, sizeof(remote._remoteHost));
yueee_yt 0:7766f6712673 79 }
yueee_yt 0:7766f6712673 80
yueee_yt 0:7766f6712673 81 // -1 if unsuccessful, else number of bytes received
yueee_yt 0:7766f6712673 82 int UDPSocket::receiveFrom(Endpoint &remote, char *buffer, int length) {
yueee_yt 0:7766f6712673 83 if (_sock_fd < 0)
yueee_yt 0:7766f6712673 84 return -1;
yueee_yt 0:7766f6712673 85
yueee_yt 0:7766f6712673 86 if (!_blocking) {
yueee_yt 0:7766f6712673 87 TimeInterval timeout(_timeout);
yueee_yt 0:7766f6712673 88 if (wait_readable(timeout) != 0)
yueee_yt 0:7766f6712673 89 return 0;
yueee_yt 0:7766f6712673 90 }
yueee_yt 0:7766f6712673 91 remote.reset_address();
yueee_yt 0:7766f6712673 92 socklen_t remoteHostLen = sizeof(remote._remoteHost);
yueee_yt 0:7766f6712673 93 return lwip_recvfrom(_sock_fd, buffer, length, 0, (struct sockaddr*) &remote._remoteHost, &remoteHostLen);
yueee_yt 0:7766f6712673 94 }