ACKme / WiConnect

Host library for controlling a WiConnect enabled Wi-Fi module.

Dependents:   wiconnect-ota_example wiconnect-web_setup_example wiconnect-test-console wiconnect-tcp_server_example ... more

sdk/mbed/types/Socket/internal/UDPSocket.cpp@17:7268f365676b, 2014-08-23 (annotated)

Committer:
dan_ackme
Date:
Sat Aug 23 05:39:17 2014 -0700
Revision:
17:7268f365676b
Fixes and documentation updates

Who changed what in which revision?

UserRevisionLine numberNew contents of line
dan_ackme 17:7268f365676b 1 /**
dan_ackme 17:7268f365676b 2 * ACKme WiConnect Host Library is licensed under the BSD licence:
dan_ackme 17:7268f365676b 3 *
dan_ackme 17:7268f365676b 4 * Copyright (c)2014 ACKme Networks.
dan_ackme 17:7268f365676b 5 * All rights reserved.
dan_ackme 17:7268f365676b 6 *
dan_ackme 17:7268f365676b 7 * Redistribution and use in source and binary forms, with or without modification,
dan_ackme 17:7268f365676b 8 * are permitted provided that the following conditions are met:
dan_ackme 17:7268f365676b 9 *
dan_ackme 17:7268f365676b 10 * 1. Redistributions of source code must retain the above copyright notice,
dan_ackme 17:7268f365676b 11 * this list of conditions and the following disclaimer.
dan_ackme 17:7268f365676b 12 * 2. Redistributions in binary form must reproduce the above copyright notice,
dan_ackme 17:7268f365676b 13 * this list of conditions and the following disclaimer in the documentation
dan_ackme 17:7268f365676b 14 * and/or other materials provided with the distribution.
dan_ackme 17:7268f365676b 15 * 3. The name of the author may not be used to endorse or promote products
dan_ackme 17:7268f365676b 16 * derived from this software without specific prior written permission.
dan_ackme 17:7268f365676b 17 *
dan_ackme 17:7268f365676b 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS AND ANY EXPRESS OR IMPLIED
dan_ackme 17:7268f365676b 19 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
dan_ackme 17:7268f365676b 20 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
dan_ackme 17:7268f365676b 21 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
dan_ackme 17:7268f365676b 22 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
dan_ackme 17:7268f365676b 23 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
dan_ackme 17:7268f365676b 24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
dan_ackme 17:7268f365676b 25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
dan_ackme 17:7268f365676b 26 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
dan_ackme 17:7268f365676b 27 * OF SUCH DAMAGE.
dan_ackme 17:7268f365676b 28 */
dan_ackme 17:7268f365676b 29
dan_ackme 17:7268f365676b 30
dan_ackme 17:7268f365676b 31 #include "types/Socket/UDPSocket.h"
dan_ackme 17:7268f365676b 32 #include "common.h"
dan_ackme 17:7268f365676b 33
dan_ackme 17:7268f365676b 34
dan_ackme 17:7268f365676b 35 /*************************************************************************************************/
dan_ackme 17:7268f365676b 36 UDPSocket::UDPSocket(int rxBufferLen, void *rxBuffer, int txBufferLen, void *txBuffer)
dan_ackme 17:7268f365676b 37 : localPort(SOCKET_ANY_PORT), Socket(rxBufferLen, rxBuffer, txBufferLen, txBuffer)
dan_ackme 17:7268f365676b 38 {
dan_ackme 17:7268f365676b 39 }
dan_ackme 17:7268f365676b 40
dan_ackme 17:7268f365676b 41 /*************************************************************************************************/
dan_ackme 17:7268f365676b 42 int UDPSocket::init(void)
dan_ackme 17:7268f365676b 43 {
dan_ackme 17:7268f365676b 44 return 0;
dan_ackme 17:7268f365676b 45 }
dan_ackme 17:7268f365676b 46
dan_ackme 17:7268f365676b 47 /*************************************************************************************************/
dan_ackme 17:7268f365676b 48 // Server initialization
dan_ackme 17:7268f365676b 49 int UDPSocket::bind(int port)
dan_ackme 17:7268f365676b 50 {
dan_ackme 17:7268f365676b 51 localPort = port;
dan_ackme 17:7268f365676b 52 return 0;
dan_ackme 17:7268f365676b 53 }
dan_ackme 17:7268f365676b 54
dan_ackme 17:7268f365676b 55 /*************************************************************************************************/
dan_ackme 17:7268f365676b 56 int UDPSocket::join_multicast_group(const char* address)
dan_ackme 17:7268f365676b 57 {
dan_ackme 17:7268f365676b 58 return -1;
dan_ackme 17:7268f365676b 59 }
dan_ackme 17:7268f365676b 60
dan_ackme 17:7268f365676b 61 /*************************************************************************************************/
dan_ackme 17:7268f365676b 62 int UDPSocket::set_broadcasting(bool broadcast)
dan_ackme 17:7268f365676b 63 {
dan_ackme 17:7268f365676b 64 return 0;
dan_ackme 17:7268f365676b 65 }
dan_ackme 17:7268f365676b 66
dan_ackme 17:7268f365676b 67 /*************************************************************************************************/
dan_ackme 17:7268f365676b 68 // -1 if unsuccessful, else number of bytes written
dan_ackme 17:7268f365676b 69 int UDPSocket::sendTo(Endpoint &remote, char *packet, int length)
dan_ackme 17:7268f365676b 70 {
dan_ackme 17:7268f365676b 71 if(!socket.isConnected())
dan_ackme 17:7268f365676b 72 {
dan_ackme 17:7268f365676b 73 if(Wiconnect::getInstance()->udpConnect(socket, remote.get_address(), remote.get_port(), localPort) != WICONNECT_SUCCESS)
dan_ackme 17:7268f365676b 74 {
dan_ackme 17:7268f365676b 75 return -1;
dan_ackme 17:7268f365676b 76 }
dan_ackme 17:7268f365676b 77 }
dan_ackme 17:7268f365676b 78 return (socket.write(packet, length, true) == WICONNECT_SUCCESS) ? length : -1;
dan_ackme 17:7268f365676b 79 }
dan_ackme 17:7268f365676b 80
dan_ackme 17:7268f365676b 81 /*************************************************************************************************/
dan_ackme 17:7268f365676b 82 // -1 if unsuccessful, else number of bytes received
dan_ackme 17:7268f365676b 83 int UDPSocket::receiveFrom(Endpoint &remote, char *buffer, int length)
dan_ackme 17:7268f365676b 84 {
dan_ackme 17:7268f365676b 85 uint16_t bytesRead;
dan_ackme 17:7268f365676b 86
dan_ackme 17:7268f365676b 87 if(!socket.isConnected())
dan_ackme 17:7268f365676b 88 {
dan_ackme 17:7268f365676b 89 if(Wiconnect::getInstance()->udpConnect(socket, remote._ipAddress, remote.get_port(), localPort) != WICONNECT_SUCCESS)
dan_ackme 17:7268f365676b 90 {
dan_ackme 17:7268f365676b 91 return -1;
dan_ackme 17:7268f365676b 92 }
dan_ackme 17:7268f365676b 93 }
dan_ackme 17:7268f365676b 94
dan_ackme 17:7268f365676b 95 if (!_blocking)
dan_ackme 17:7268f365676b 96 {
dan_ackme 17:7268f365676b 97 if(socket.getRxBufferSize() == 0 || socket.getRxBufferBytesPending() == 0)
dan_ackme 17:7268f365676b 98 {
dan_ackme 17:7268f365676b 99 TimeoutTimer timer;
dan_ackme 17:7268f365676b 100
dan_ackme 17:7268f365676b 101 for(;;)
dan_ackme 17:7268f365676b 102 {
dan_ackme 17:7268f365676b 103 bool hasData;
dan_ackme 17:7268f365676b 104
dan_ackme 17:7268f365676b 105 if(socket.poll(&hasData) != WICONNECT_SUCCESS)
dan_ackme 17:7268f365676b 106 {
dan_ackme 17:7268f365676b 107 return -1;
dan_ackme 17:7268f365676b 108 }
dan_ackme 17:7268f365676b 109 else if(hasData)
dan_ackme 17:7268f365676b 110 {
dan_ackme 17:7268f365676b 111 break;
dan_ackme 17:7268f365676b 112 }
dan_ackme 17:7268f365676b 113 else if(timer.timedOut(_timeout))
dan_ackme 17:7268f365676b 114 {
dan_ackme 17:7268f365676b 115 return -1;
dan_ackme 17:7268f365676b 116 }
dan_ackme 17:7268f365676b 117 }
dan_ackme 17:7268f365676b 118 }
dan_ackme 17:7268f365676b 119 }
dan_ackme 17:7268f365676b 120
dan_ackme 17:7268f365676b 121 if(length == 1 && socket.getRxBufferSize() > 0)
dan_ackme 17:7268f365676b 122 {
dan_ackme 17:7268f365676b 123 return (socket.getc((uint8_t*)buffer) == WICONNECT_SUCCESS) ? 1 : -1;
dan_ackme 17:7268f365676b 124 }
dan_ackme 17:7268f365676b 125 else
dan_ackme 17:7268f365676b 126 {
dan_ackme 17:7268f365676b 127 return (socket.read(buffer, length, &bytesRead) == WICONNECT_SUCCESS) ? (int)bytesRead : -1;
dan_ackme 17:7268f365676b 128 }
dan_ackme 17:7268f365676b 129
dan_ackme 17:7268f365676b 130 }