Frank Vannieuwkerke / cc3000_hostdriver_mbedsocket

cc3000 hostdriver with the mbed socket interface

Fork of cc3000_hostdriver_mbedsocket by Martin Kojtal

Socket/UDPSocket.cpp@0:615c697c33b0, 2013-09-19 (annotated)

Committer:
Kojto
Date:
Thu Sep 19 07:55:14 2013 +0000
Revision:
0:615c697c33b0
Child:
4:15b58c119a0a
initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Kojto 0:615c697c33b0 1 /* Copyright (C) 2012 mbed.org, MIT License
Kojto 0:615c697c33b0 2 *
Kojto 0:615c697c33b0 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
Kojto 0:615c697c33b0 4 * and associated documentation files (the "Software"), to deal in the Software without restriction,
Kojto 0:615c697c33b0 5 * including without limitation the rights to use, copy, modify, merge, publish, distribute,
Kojto 0:615c697c33b0 6 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
Kojto 0:615c697c33b0 7 * furnished to do so, subject to the following conditions:
Kojto 0:615c697c33b0 8 *
Kojto 0:615c697c33b0 9 * The above copyright notice and this permission notice shall be included in all copies or
Kojto 0:615c697c33b0 10 * substantial portions of the Software.
Kojto 0:615c697c33b0 11 *
Kojto 0:615c697c33b0 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
Kojto 0:615c697c33b0 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
Kojto 0:615c697c33b0 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
Kojto 0:615c697c33b0 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
Kojto 0:615c697c33b0 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Kojto 0:615c697c33b0 17 */
Kojto 0:615c697c33b0 18
Kojto 0:615c697c33b0 19 #include "UDPSocket.h"
Kojto 0:615c697c33b0 20
Kojto 0:615c697c33b0 21 #include <string>
Kojto 0:615c697c33b0 22 #include <algorithm>
Kojto 0:615c697c33b0 23
Kojto 0:615c697c33b0 24 UDPSocket::UDPSocket() {
Kojto 0:615c697c33b0 25
Kojto 0:615c697c33b0 26 }
Kojto 0:615c697c33b0 27
Kojto 0:615c697c33b0 28 int UDPSocket::init(void) {
Kojto 0:615c697c33b0 29 /* open upd socket */
Kojto 0:615c697c33b0 30 _sock_fd = _cc3000_module->_socket.socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
Kojto 0:615c697c33b0 31 if (_sock_fd == -1) {
Kojto 0:615c697c33b0 32 #if (CC3000_DEBUG == 1)
Kojto 0:615c697c33b0 33 printf("DEBUG: Failed to create new socket (udp).\n");
Kojto 0:615c697c33b0 34 #endif
Kojto 0:615c697c33b0 35 return 0;
Kojto 0:615c697c33b0 36 }
Kojto 0:615c697c33b0 37
Kojto 0:615c697c33b0 38 return 1;
Kojto 0:615c697c33b0 39 }
Kojto 0:615c697c33b0 40
Kojto 0:615c697c33b0 41 // Server initialization
Kojto 0:615c697c33b0 42 int UDPSocket::bind(int port) {
Kojto 0:615c697c33b0 43 init();
Kojto 0:615c697c33b0 44
Kojto 0:615c697c33b0 45 sockaddr_in localHost;
Kojto 0:615c697c33b0 46 std::memset(&localHost, 0, sizeof(localHost));
Kojto 0:615c697c33b0 47
Kojto 0:615c697c33b0 48 localHost.sin_family = AF_INET;
Kojto 0:615c697c33b0 49 localHost.sin_port = htons(port);
Kojto 0:615c697c33b0 50 localHost.sin_addr.s_addr = htons(0);
Kojto 0:615c697c33b0 51
Kojto 0:615c697c33b0 52 if (_cc3000_module->_socket.bind(_sock_fd, (sockaddr *)&localHost, sizeof(localHost)) != 0) {
Kojto 0:615c697c33b0 53 #if (CC3000_DEBUG == 1)
Kojto 0:615c697c33b0 54 printf("DEBUG: Failed to bind a socket (udp). Closing socket.\n");
Kojto 0:615c697c33b0 55 #endif
Kojto 0:615c697c33b0 56 _cc3000_module->_socket.closesocket(_sock_fd);
Kojto 0:615c697c33b0 57 return -1;
Kojto 0:615c697c33b0 58 }
Kojto 0:615c697c33b0 59 return 0;
Kojto 0:615c697c33b0 60 }
Kojto 0:615c697c33b0 61
Kojto 0:615c697c33b0 62 // -1 if unsuccessful, else number of bytes written
Kojto 0:615c697c33b0 63 int UDPSocket::sendTo(Endpoint &remote, char *packet, int length)
Kojto 0:615c697c33b0 64 {
Kojto 0:615c697c33b0 65 if (_sock_fd < 0) {
Kojto 0:615c697c33b0 66 return -1;
Kojto 0:615c697c33b0 67 }
Kojto 0:615c697c33b0 68
Kojto 0:615c697c33b0 69 if (!_blocking) {
Kojto 0:615c697c33b0 70 TimeInterval timeout(_timeout);
Kojto 0:615c697c33b0 71 if (wait_writable(timeout) != 0)
Kojto 0:615c697c33b0 72 return 0;
Kojto 0:615c697c33b0 73 }
Kojto 0:615c697c33b0 74
Kojto 0:615c697c33b0 75 return _cc3000_module->_socket.sendto(_sock_fd, packet, length, 0, (sockaddr *)&remote._remote_host, sizeof(remote._remote_host));
Kojto 0:615c697c33b0 76 }
Kojto 0:615c697c33b0 77
Kojto 0:615c697c33b0 78 // -1 if unsuccessful, else number of bytes received
Kojto 0:615c697c33b0 79 int UDPSocket::receiveFrom(Endpoint &remote, char *buffer, int length)
Kojto 0:615c697c33b0 80 {
Kojto 0:615c697c33b0 81 if (_sock_fd < 0) {
Kojto 0:615c697c33b0 82 return -1;
Kojto 0:615c697c33b0 83 }
Kojto 0:615c697c33b0 84
Kojto 0:615c697c33b0 85 if (!_blocking) {
Kojto 0:615c697c33b0 86 TimeInterval timeout(_timeout);
Kojto 0:615c697c33b0 87 if (wait_readable(timeout) != 0) {
Kojto 0:615c697c33b0 88 return 0;
Kojto 0:615c697c33b0 89 }
Kojto 0:615c697c33b0 90 }
Kojto 0:615c697c33b0 91
Kojto 0:615c697c33b0 92 remote.reset_address();
Kojto 0:615c697c33b0 93 socklen_t remote_host_length = sizeof(remote._remote_host);
Kojto 0:615c697c33b0 94
Kojto 0:615c697c33b0 95 return _cc3000_module->_socket.recvfrom(_sock_fd, buffer, length, 0, (sockaddr *)&remote._remote_host, &remote_host_length);
Kojto 0:615c697c33b0 96 }
Kojto 0:615c697c33b0 97
Kojto 0:615c697c33b0 98