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

types/Socket/internal/UDPSocket.cpp@20:7b67c3f94de9, 2014-08-23 (annotated)

Committer:
dan_ackme
Date:
Sat Aug 23 05:57:52 2014 -0700
Revision:
20:7b67c3f94de9
Child:
26:8067e3d463d3
Added mbed socket api

Who changed what in which revision?

UserRevisionLine numberNew contents of line
dan_ackme 20:7b67c3f94de9 1 /**
dan_ackme 20:7b67c3f94de9 2 * ACKme WiConnect Host Library is licensed under the BSD licence:
dan_ackme 20:7b67c3f94de9 3 *
dan_ackme 20:7b67c3f94de9 4 * Copyright (c)2014 ACKme Networks.
dan_ackme 20:7b67c3f94de9 5 * All rights reserved.
dan_ackme 20:7b67c3f94de9 6 *
dan_ackme 20:7b67c3f94de9 7 * Redistribution and use in source and binary forms, with or without modification,
dan_ackme 20:7b67c3f94de9 8 * are permitted provided that the following conditions are met:
dan_ackme 20:7b67c3f94de9 9 *
dan_ackme 20:7b67c3f94de9 10 * 1. Redistributions of source code must retain the above copyright notice,
dan_ackme 20:7b67c3f94de9 11 * this list of conditions and the following disclaimer.
dan_ackme 20:7b67c3f94de9 12 * 2. Redistributions in binary form must reproduce the above copyright notice,
dan_ackme 20:7b67c3f94de9 13 * this list of conditions and the following disclaimer in the documentation
dan_ackme 20:7b67c3f94de9 14 * and/or other materials provided with the distribution.
dan_ackme 20:7b67c3f94de9 15 * 3. The name of the author may not be used to endorse or promote products
dan_ackme 20:7b67c3f94de9 16 * derived from this software without specific prior written permission.
dan_ackme 20:7b67c3f94de9 17 *
dan_ackme 20:7b67c3f94de9 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS AND ANY EXPRESS OR IMPLIED
dan_ackme 20:7b67c3f94de9 19 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
dan_ackme 20:7b67c3f94de9 20 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
dan_ackme 20:7b67c3f94de9 21 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
dan_ackme 20:7b67c3f94de9 22 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
dan_ackme 20:7b67c3f94de9 23 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
dan_ackme 20:7b67c3f94de9 24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
dan_ackme 20:7b67c3f94de9 25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
dan_ackme 20:7b67c3f94de9 26 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
dan_ackme 20:7b67c3f94de9 27 * OF SUCH DAMAGE.
dan_ackme 20:7b67c3f94de9 28 */
dan_ackme 20:7b67c3f94de9 29
dan_ackme 20:7b67c3f94de9 30
dan_ackme 20:7b67c3f94de9 31 #include "types/Socket/UDPSocket.h"
dan_ackme 20:7b67c3f94de9 32 #include "common.h"
dan_ackme 20:7b67c3f94de9 33
dan_ackme 20:7b67c3f94de9 34
dan_ackme 20:7b67c3f94de9 35 /*************************************************************************************************/
dan_ackme 20:7b67c3f94de9 36 UDPSocket::UDPSocket(int rxBufferLen, void *rxBuffer, int txBufferLen, void *txBuffer)
dan_ackme 20:7b67c3f94de9 37 : Socket(rxBufferLen, rxBuffer, txBufferLen, txBuffer), localPort(SOCKET_ANY_PORT)
dan_ackme 20:7b67c3f94de9 38 {
dan_ackme 20:7b67c3f94de9 39 }
dan_ackme 20:7b67c3f94de9 40
dan_ackme 20:7b67c3f94de9 41 /*************************************************************************************************/
dan_ackme 20:7b67c3f94de9 42 int UDPSocket::init(void)
dan_ackme 20:7b67c3f94de9 43 {
dan_ackme 20:7b67c3f94de9 44 return 0;
dan_ackme 20:7b67c3f94de9 45 }
dan_ackme 20:7b67c3f94de9 46
dan_ackme 20:7b67c3f94de9 47 /*************************************************************************************************/
dan_ackme 20:7b67c3f94de9 48 // Server initialization
dan_ackme 20:7b67c3f94de9 49 int UDPSocket::bind(int port)
dan_ackme 20:7b67c3f94de9 50 {
dan_ackme 20:7b67c3f94de9 51 localPort = port;
dan_ackme 20:7b67c3f94de9 52 return 0;
dan_ackme 20:7b67c3f94de9 53 }
dan_ackme 20:7b67c3f94de9 54
dan_ackme 20:7b67c3f94de9 55 /*************************************************************************************************/
dan_ackme 20:7b67c3f94de9 56 int UDPSocket::join_multicast_group(const char* address)
dan_ackme 20:7b67c3f94de9 57 {
dan_ackme 20:7b67c3f94de9 58 return -1;
dan_ackme 20:7b67c3f94de9 59 }
dan_ackme 20:7b67c3f94de9 60
dan_ackme 20:7b67c3f94de9 61 /*************************************************************************************************/
dan_ackme 20:7b67c3f94de9 62 int UDPSocket::set_broadcasting(bool broadcast)
dan_ackme 20:7b67c3f94de9 63 {
dan_ackme 20:7b67c3f94de9 64 return 0;
dan_ackme 20:7b67c3f94de9 65 }
dan_ackme 20:7b67c3f94de9 66
dan_ackme 20:7b67c3f94de9 67 /*************************************************************************************************/
dan_ackme 20:7b67c3f94de9 68 // -1 if unsuccessful, else number of bytes written
dan_ackme 20:7b67c3f94de9 69 int UDPSocket::sendTo(Endpoint &remote, char *packet, int length)
dan_ackme 20:7b67c3f94de9 70 {
dan_ackme 20:7b67c3f94de9 71 if(!socket.isConnected())
dan_ackme 20:7b67c3f94de9 72 {
dan_ackme 20:7b67c3f94de9 73 if(Wiconnect::getInstance()->udpConnect(socket, remote.get_address(), remote.get_port(), localPort) != WICONNECT_SUCCESS)
dan_ackme 20:7b67c3f94de9 74 {
dan_ackme 20:7b67c3f94de9 75 return -1;
dan_ackme 20:7b67c3f94de9 76 }
dan_ackme 20:7b67c3f94de9 77 }
dan_ackme 20:7b67c3f94de9 78 return (socket.write(packet, length, true) == WICONNECT_SUCCESS) ? length : -1;
dan_ackme 20:7b67c3f94de9 79 }
dan_ackme 20:7b67c3f94de9 80
dan_ackme 20:7b67c3f94de9 81 /*************************************************************************************************/
dan_ackme 20:7b67c3f94de9 82 // -1 if unsuccessful, else number of bytes received
dan_ackme 20:7b67c3f94de9 83 int UDPSocket::receiveFrom(Endpoint &remote, char *buffer, int length)
dan_ackme 20:7b67c3f94de9 84 {
dan_ackme 20:7b67c3f94de9 85 uint16_t bytesRead;
dan_ackme 20:7b67c3f94de9 86
dan_ackme 20:7b67c3f94de9 87 if(!socket.isConnected())
dan_ackme 20:7b67c3f94de9 88 {
dan_ackme 20:7b67c3f94de9 89 if(Wiconnect::getInstance()->udpConnect(socket, remote._ipAddress, remote.get_port(), localPort) != WICONNECT_SUCCESS)
dan_ackme 20:7b67c3f94de9 90 {
dan_ackme 20:7b67c3f94de9 91 return -1;
dan_ackme 20:7b67c3f94de9 92 }
dan_ackme 20:7b67c3f94de9 93 }
dan_ackme 20:7b67c3f94de9 94
dan_ackme 20:7b67c3f94de9 95 if (!_blocking)
dan_ackme 20:7b67c3f94de9 96 {
dan_ackme 20:7b67c3f94de9 97 if(socket.getRxBufferSize() == 0 || socket.getRxBufferBytesPending() == 0)
dan_ackme 20:7b67c3f94de9 98 {
dan_ackme 20:7b67c3f94de9 99 TimeoutTimer timer;
dan_ackme 20:7b67c3f94de9 100
dan_ackme 20:7b67c3f94de9 101 for(;;)
dan_ackme 20:7b67c3f94de9 102 {
dan_ackme 20:7b67c3f94de9 103 bool hasData;
dan_ackme 20:7b67c3f94de9 104
dan_ackme 20:7b67c3f94de9 105 if(socket.poll(&hasData) != WICONNECT_SUCCESS)
dan_ackme 20:7b67c3f94de9 106 {
dan_ackme 20:7b67c3f94de9 107 return -1;
dan_ackme 20:7b67c3f94de9 108 }
dan_ackme 20:7b67c3f94de9 109 else if(hasData)
dan_ackme 20:7b67c3f94de9 110 {
dan_ackme 20:7b67c3f94de9 111 break;
dan_ackme 20:7b67c3f94de9 112 }
dan_ackme 20:7b67c3f94de9 113 else if(timer.timedOut(_timeout))
dan_ackme 20:7b67c3f94de9 114 {
dan_ackme 20:7b67c3f94de9 115 return -1;
dan_ackme 20:7b67c3f94de9 116 }
dan_ackme 20:7b67c3f94de9 117 }
dan_ackme 20:7b67c3f94de9 118 }
dan_ackme 20:7b67c3f94de9 119 }
dan_ackme 20:7b67c3f94de9 120
dan_ackme 20:7b67c3f94de9 121 if(length == 1 && socket.getRxBufferSize() > 0)
dan_ackme 20:7b67c3f94de9 122 {
dan_ackme 20:7b67c3f94de9 123 return (socket.getc((uint8_t*)buffer) == WICONNECT_SUCCESS) ? 1 : -1;
dan_ackme 20:7b67c3f94de9 124 }
dan_ackme 20:7b67c3f94de9 125 else
dan_ackme 20:7b67c3f94de9 126 {
dan_ackme 20:7b67c3f94de9 127 return (socket.read(buffer, length, &bytesRead) == WICONNECT_SUCCESS) ? (int)bytesRead : -1;
dan_ackme 20:7b67c3f94de9 128 }
dan_ackme 20:7b67c3f94de9 129
dan_ackme 20:7b67c3f94de9 130 }