wip
Dependents: EthernetInterface_vz
Fork of Socket by
UDPSocket.cpp
- Committer:
- emilmont
- Date:
- 2012-07-27
- Revision:
- 6:cd2e5559786d
- Parent:
- 5:300e7ad2dc1d
- Child:
- 10:d24738f4ef99
File content as of revision 6:cd2e5559786d:
/* Copyright (C) 2012 mbed.org, MIT License * * Permission is hereby granted, free of charge, to any person obtaining a copy of this software * and associated documentation files (the "Software"), to deal in the Software without restriction, * including without limitation the rights to use, copy, modify, merge, publish, distribute, * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in all copies or * substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ #include "Socket/UDPSocket.h" #include <cstring> using std::memset; UDPSocket::UDPSocket() { } int UDPSocket::init(void) { return init_socket(SOCK_DGRAM); } // Server initialization int UDPSocket::bind(int port) { if (init_socket(SOCK_DGRAM) < 0) return -1; struct sockaddr_in localHost; std::memset(&localHost, 0, sizeof(localHost)); localHost.sin_family = AF_INET; localHost.sin_port = htons(port); localHost.sin_addr.s_addr = INADDR_ANY; if (lwip_bind(_sock_fd, (const struct sockaddr *) &localHost, sizeof(localHost)) < 0) { close(); return -1; } return 0; } // -1 if unsuccessful, else number of bytes written int UDPSocket::sendTo(UDPPacket& packet, int timeout_ms) { if (_sock_fd < 0) return -1; if (timeout_ms != 0) { TimeInterval timeout(timeout_ms); if (wait_writable(timeout) != 0) return -1; } return lwip_sendto(_sock_fd, packet._buffer, packet._length, 0, (const struct sockaddr *) &packet._remoteHost, sizeof(packet._remoteHost)); } // -1 if unsuccessful, else number of bytes received int UDPSocket::receiveFrom(UDPPacket& packet, int timeout_ms) { if (_sock_fd < 0) return -1; if (timeout_ms != 0) { TimeInterval timeout(timeout_ms); if (wait_readable(timeout) != 0) return -1; } packet.reset_address(); socklen_t remoteHostLen = sizeof(packet._remoteHost); return lwip_recvfrom(_sock_fd, packet._buffer, packet._length, 0, (struct sockaddr*) &packet._remoteHost, &remoteHostLen); } UDPSocket::~UDPSocket() { close(); //Don't want to leak }