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
Diff: UDPSocket.cpp
- Revision:
- 29:b6af04b77a56
- Child:
- 32:b2bdbc018665
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/UDPSocket.cpp Mon Oct 27 13:42:26 2014 -0700 @@ -0,0 +1,140 @@ +/** + * 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 "api/types/Socket/UDPSocket.h" +#include "common.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; + } + } + } + +}