a library to use GPRS like ethernet or wifi, which makes it possible to connect to the internet with your GPRS module
Dependencies: BufferedSerial
Dependents: ThinkSpeak_Test roam_v1 roam_v2 finalv3
Fork of GPRSInterface by
Socket/TCPSocketConnection.cpp
- Committer:
- lawliet
- Date:
- 2014-02-25
- Revision:
- 0:8ccbd963e74d
- Child:
- 3:acf2ea413e72
File content as of revision 0:8ccbd963e74d:
/* TCPSocketConnection.cpp 2014 Copyright (c) Seeed Technology Inc. All right reserved. Author:lawliet zou(lawliet.zou@gmail.com) 2014-2-24 This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #include "TCPSocketConnection.h" static int size; TCPSocketConnection::TCPSocketConnection() { size = 0; } int TCPSocketConnection::connect(const char* host, const int port) { if (_sock_fd < 0) { _sock_fd = gprs->new_socket(); if (_sock_fd < 0) { return -1; } } if (!gprs->connect(_sock_fd, TCP, host, port)) { return false; } return true; } bool TCPSocketConnection::is_connected(void) { return gprs->is_connected(_sock_fd); } int TCPSocketConnection::send(char* data, int length) { int size = gprs->wait_writeable(_sock_fd, length); if (size < 0) { return -1; } if (size > length) { size = length; } return gprs->send(_sock_fd, data, size); } int TCPSocketConnection::send_all(char* data, int length) { return send(data,length); } int TCPSocketConnection::receive(char* data, int length) { if (size < 0) { return -1; } if(size == 0) { size = gprs->wait_readable(_sock_fd, DEFAULT_TIMEOUT); } if(size > length) { size = size - length; } else { length = size; size = -1; } return gprs->recv(_sock_fd, data, length); } int TCPSocketConnection::receive_all(char* data, int length) { return receive(data,length); }