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tmk_keyboard/tool/mbed/mbed-sdk/libraries/net/lwip/Socket/Socket.cpp

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/* 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/Socket.h"
#include <cstring>
using std::memset;
Socket::Socket() : _sock_fd(-1), _blocking(true), _timeout(1500) {
}
void Socket::set_blocking(bool blocking, unsigned int timeout) {
_blocking = blocking;
_timeout = timeout;
}
int Socket::init_socket(int type) {
if (_sock_fd != -1)
return -1;
int fd = lwip_socket(AF_INET, type, 0);
if (fd < 0)
return -1;
_sock_fd = fd;
return 0;
}
int Socket::set_option(int level, int optname, const void *optval, socklen_t optlen) {
return lwip_setsockopt(_sock_fd, level, optname, optval, optlen);
}
int Socket::get_option(int level, int optname, void *optval, socklen_t *optlen) {
return lwip_getsockopt(_sock_fd, level, optname, optval, optlen);
}
int Socket::select(struct timeval *timeout, bool read, bool write) {
fd_set fdSet;
FD_ZERO(&fdSet);
FD_SET(_sock_fd, &fdSet);
fd_set* readset = (read ) ? (&fdSet) : (NULL);
fd_set* writeset = (write) ? (&fdSet) : (NULL);
int ret = lwip_select(FD_SETSIZE, readset, writeset, NULL, timeout);
return (ret <= 0 || !FD_ISSET(_sock_fd, &fdSet)) ? (-1) : (0);
}
int Socket::wait_readable(TimeInterval& timeout) {
return select(&timeout._time, true, false);
}
int Socket::wait_writable(TimeInterval& timeout) {
return select(&timeout._time, false, true);
}
int Socket::close(bool shutdown) {
if (_sock_fd < 0)
return -1;
if (shutdown)
lwip_shutdown(_sock_fd, SHUT_RDWR);
lwip_close(_sock_fd);
_sock_fd = -1;
return 0;
}
Socket::~Socket() {
close(); //Don't want to leak
}
TimeInterval::TimeInterval(unsigned int ms) {
_time.tv_sec = ms / 1000;
_time.tv_usec = (ms - (_time.tv_sec * 1000)) * 1000;
}