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
UDPSocket.cpp
- Committer:
- dan_ackme
- Date:
- 2014-10-27
- Revision:
- 32:b2bdbc018665
- Parent:
- 29:b6af04b77a56
File content as of revision 32:b2bdbc018665:
/** * ACKme WiConnect Host Library is licensed under the BSD licence: * * Copyright (c)2014 ACKme Networks. * All rights reserved. * * Redistribution and use in source and binary forms, with or without modification, * are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS AND ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY * OF SUCH DAMAGE. */ #include "Wiconnect.h" #include "api/types/Socket/UDPSocket.h" /*************************************************************************************************/ UDPSocket::UDPSocket(int rxBufferLen, void *rxBuffer, int txBufferLen, void *txBuffer) : Socket(rxBufferLen, rxBuffer, txBufferLen, txBuffer), localPort(SOCKET_ANY_PORT) { } /*************************************************************************************************/ int UDPSocket::init(void) { return 0; } /*************************************************************************************************/ // Server initialization int UDPSocket::bind(int port) { localPort = port; return 0; } /*************************************************************************************************/ int UDPSocket::join_multicast_group(const char* address) { return -1; } /*************************************************************************************************/ int UDPSocket::set_broadcasting(bool broadcast) { return 0; } /*************************************************************************************************/ // -1 if unsuccessful, else number of bytes written int UDPSocket::sendTo(Endpoint &remote, char *packet, int length) { if(!socket.isConnected()) { if(Wiconnect::getInstance()->udpConnect(socket, remote.get_address(), remote.get_port(), localPort) != WICONNECT_SUCCESS) { return -1; } } return (socket.write(packet, length, true) == WICONNECT_SUCCESS) ? length : -1; } /*************************************************************************************************/ // -1 if unsuccessful, else number of bytes received int UDPSocket::receiveFrom(Endpoint &remote, char *buffer, int length) { uint16_t bytesRead; if(!socket.isConnected()) { if(Wiconnect::getInstance()->udpConnect(socket, remote._ipAddress, remote.get_port(), localPort) != WICONNECT_SUCCESS) { return -1; } } if (!_blocking) { if(socket.getRxBufferSize() == 0 || socket.getRxBufferBytesPending() == 0) { TimeoutTimer timer; for(;;) { bool hasData; if(socket.poll(&hasData) != WICONNECT_SUCCESS) { return -1; } else if(hasData) { break; } else if(timer.timedOut(_timeout)) { return -1; } } } } if(length == 1 && socket.getRxBufferSize() > 0) { return (socket.getc((uint8_t*)buffer) == WICONNECT_SUCCESS) ? 1 : -1; } else { for(;;) { if(socket.read(buffer, length, &bytesRead) != WICONNECT_SUCCESS) { return -1; } else if(bytesRead > 0) { return bytesRead; } } } }