Library for ethernet
Dependents: VC0706_FTP_Client_Ethernet_MQTT
Fork of WIZnetInterface by
Socket/TCPSocketConnection.cpp
- Committer:
- Ricky_Kwon
- Date:
- 2015-07-21
- Revision:
- 20:5a1969320666
- Parent:
- 0:6f28332c466f
- Child:
- 21:584efa51ee60
File content as of revision 20:5a1969320666:
/* 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 "TCPSocketConnection.h" #include <cstring> using std::memset; using std::memcpy; // not a big code. // refer from EthernetInterface by mbed official driver TCPSocketConnection::TCPSocketConnection() : _is_connected(false) { } int TCPSocketConnection::connect(const char* host, const int port) { if (_sock_fd < 0) { _sock_fd = eth->new_socket(); if (_sock_fd < 0) { return -1; } } if (set_address(host, port) != 0) { return -1; } if (!eth->connect(_sock_fd, get_address(), port)) { return -1; } set_blocking(false); // add code refer from EthernetInterface. _is_connected = true; return 0; } bool TCPSocketConnection::is_connected(void) { // force update recent state. _is_connected = eth->is_connected(_sock_fd); return _is_connected; } int TCPSocketConnection::send(char* data, int length) { if((_sock_fd<0) || !(eth->is_connected(_sock_fd))) return -1; int size = eth->wait_writeable(_sock_fd, _blocking ? -1 : _timeout); if (size < 0) return -1; if (size > length) size = length; return eth->send(_sock_fd, data, size); } // -1 if unsuccessful, else number of bytes written int TCPSocketConnection::send_all(char* data, int length) { int writtenLen = 0; if(_sock_fd<0) return -1; while (writtenLen < length) { if(!(eth->is_connected(_sock_fd))) return -1; int size = eth->wait_writeable(_sock_fd, _blocking ? -1 : _timeout); if (size < 0) { return -1; } if (size > (length-writtenLen)) { size = (length-writtenLen); } int ret = eth->send(_sock_fd, data + writtenLen, size); if (ret < 0) { return -1; } writtenLen += ret; } return writtenLen; } // -1 if unsuccessful, else number of bytes received int TCPSocketConnection::receive(char* data, int length) { if((_sock_fd<0) || !(eth->is_connected(_sock_fd))) return -1; int size = eth->wait_readable(_sock_fd, _blocking ? -1 : _timeout); //int size = eth->wait_readable(_sock_fd, _blocking ? _timeout : -1 ); if (size < 0) { return -1; } if (size > length) { size = length; } return eth->recv(_sock_fd, data, size); } // -1 if unsuccessful, else number of bytes received int TCPSocketConnection::receive_all(char* data, int length) { if(_sock_fd<0) return -1; int readLen = 0; while (readLen < length) { if(!(eth->is_connected(_sock_fd))) return -1; int size = eth->wait_readable(_sock_fd, _blocking ? -1 :_timeout); if (size <= 0) { break; } if (size > (length - readLen)) { size = length - readLen; } int ret = eth->recv(_sock_fd, data + readLen, size); if (ret < 0) { return -1; } readLen += ret; } return readLen; }