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Dependencies:   mbed

WifiRobot/cc3000/Socket/UDPSocket.cpp@0:2deb247ab4bd, 2014-12-09 (annotated)

Committer:
wueric
Date:
Tue Dec 09 05:06:37 2014 +0000
Revision:
0:2deb247ab4bd
sharing stuff;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
wueric 0:2deb247ab4bd 1 /* Copyright (C) 2013 mbed.org, MIT License
wueric 0:2deb247ab4bd 2 *
wueric 0:2deb247ab4bd 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
wueric 0:2deb247ab4bd 4 * and associated documentation files (the "Software"), to deal in the Software without restriction,
wueric 0:2deb247ab4bd 5 * including without limitation the rights to use, copy, modify, merge, publish, distribute,
wueric 0:2deb247ab4bd 6 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
wueric 0:2deb247ab4bd 7 * furnished to do so, subject to the following conditions:
wueric 0:2deb247ab4bd 8 *
wueric 0:2deb247ab4bd 9 * The above copyright notice and this permission notice shall be included in all copies or
wueric 0:2deb247ab4bd 10 * substantial portions of the Software.
wueric 0:2deb247ab4bd 11 *
wueric 0:2deb247ab4bd 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
wueric 0:2deb247ab4bd 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
wueric 0:2deb247ab4bd 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
wueric 0:2deb247ab4bd 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
wueric 0:2deb247ab4bd 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
wueric 0:2deb247ab4bd 17 */
wueric 0:2deb247ab4bd 18
wueric 0:2deb247ab4bd 19 #include "UDPSocket.h"
wueric 0:2deb247ab4bd 20
wueric 0:2deb247ab4bd 21 #include <string>
wueric 0:2deb247ab4bd 22 #include <algorithm>
wueric 0:2deb247ab4bd 23
wueric 0:2deb247ab4bd 24 UDPSocket::UDPSocket() {
wueric 0:2deb247ab4bd 25
wueric 0:2deb247ab4bd 26 }
wueric 0:2deb247ab4bd 27
wueric 0:2deb247ab4bd 28 int UDPSocket::init(void) {
wueric 0:2deb247ab4bd 29 return init_socket(SOCK_DGRAM, IPPROTO_UDP);
wueric 0:2deb247ab4bd 30 }
wueric 0:2deb247ab4bd 31
wueric 0:2deb247ab4bd 32 int UDPSocket::bind(int port) {
wueric 0:2deb247ab4bd 33 if (init_socket(SOCK_DGRAM, IPPROTO_UDP) < 0) {
wueric 0:2deb247ab4bd 34 return -1;
wueric 0:2deb247ab4bd 35 }
wueric 0:2deb247ab4bd 36
wueric 0:2deb247ab4bd 37 sockaddr_in localHost;
wueric 0:2deb247ab4bd 38 std::memset(&localHost, 0, sizeof(sockaddr_in));
wueric 0:2deb247ab4bd 39
wueric 0:2deb247ab4bd 40 localHost.sin_family = AF_INET;
wueric 0:2deb247ab4bd 41 localHost.sin_port = htons(port);
wueric 0:2deb247ab4bd 42 localHost.sin_addr.s_addr = 0;
wueric 0:2deb247ab4bd 43
wueric 0:2deb247ab4bd 44 if (_cc3000_module->_socket.bind(_sock_fd, (sockaddr *)&localHost, sizeof(sockaddr_in)) != 0) {
wueric 0:2deb247ab4bd 45 DBG_SOCKET("Failed to bind a socket (udp). Closing socket");
wueric 0:2deb247ab4bd 46 _cc3000_module->_socket.closesocket(_sock_fd);
wueric 0:2deb247ab4bd 47 _sock_fd = -1;
wueric 0:2deb247ab4bd 48 return -1;
wueric 0:2deb247ab4bd 49 }
wueric 0:2deb247ab4bd 50
wueric 0:2deb247ab4bd 51 return 0;
wueric 0:2deb247ab4bd 52 }
wueric 0:2deb247ab4bd 53
wueric 0:2deb247ab4bd 54 int UDPSocket::sendTo(Endpoint &remote, char *packet, int length)
wueric 0:2deb247ab4bd 55 {
wueric 0:2deb247ab4bd 56 if (_sock_fd < 0) {
wueric 0:2deb247ab4bd 57 return -1;
wueric 0:2deb247ab4bd 58 }
wueric 0:2deb247ab4bd 59 // TODO - seems to be a bug, waiting for TI to respond
wueric 0:2deb247ab4bd 60 // if (!_blocking) {
wueric 0:2deb247ab4bd 61 // TimeInterval timeout(_timeout);
wueric 0:2deb247ab4bd 62 // if (wait_writable(timeout) != 0) {
wueric 0:2deb247ab4bd 63 // DBG_SOCKET("The socket is not writeable. _sock_fd: %d", _sock_fd);
wueric 0:2deb247ab4bd 64 // return 0;
wueric 0:2deb247ab4bd 65 // }
wueric 0:2deb247ab4bd 66 // }
wueric 0:2deb247ab4bd 67
wueric 0:2deb247ab4bd 68 return _cc3000_module->_socket.sendto(_sock_fd, packet, length, 0, (sockaddr *)&remote._remote_host, sizeof(sockaddr));
wueric 0:2deb247ab4bd 69 }
wueric 0:2deb247ab4bd 70
wueric 0:2deb247ab4bd 71 int UDPSocket::receiveFrom(Endpoint &remote, char *buffer, int length)
wueric 0:2deb247ab4bd 72 {
wueric 0:2deb247ab4bd 73 if (_sock_fd < 0) {
wueric 0:2deb247ab4bd 74 return -1;
wueric 0:2deb247ab4bd 75 }
wueric 0:2deb247ab4bd 76
wueric 0:2deb247ab4bd 77 if (!_blocking) {
wueric 0:2deb247ab4bd 78 TimeInterval timeout(_timeout);
wueric 0:2deb247ab4bd 79 if (wait_readable(timeout) != 0) {
wueric 0:2deb247ab4bd 80 DBG_SOCKET("The socket is not readable. _sock_fd: %d", _sock_fd);
wueric 0:2deb247ab4bd 81 return 0;
wueric 0:2deb247ab4bd 82 }
wueric 0:2deb247ab4bd 83 }
wueric 0:2deb247ab4bd 84
wueric 0:2deb247ab4bd 85 remote.reset_address();
wueric 0:2deb247ab4bd 86 socklen_t remote_host_length = sizeof(remote._remote_host);
wueric 0:2deb247ab4bd 87
wueric 0:2deb247ab4bd 88 return _cc3000_module->_socket.recvfrom(_sock_fd, buffer, length, 0, (sockaddr *)&remote._remote_host, &remote_host_length);
wueric 0:2deb247ab4bd 89 }
wueric 0:2deb247ab4bd 90
wueric 0:2deb247ab4bd 91