92 líneas
2.8 KiB
C++
92 líneas
2.8 KiB
C++
/* Copyright (C) 2012 mbed.org, MIT License
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of this software
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* and associated documentation files (the "Software"), to deal in the Software without restriction,
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* including without limitation the rights to use, copy, modify, merge, publish, distribute,
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* sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all copies or
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* substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
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* BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include "Socket/Socket.h"
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#include <cstring>
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using std::memset;
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Socket::Socket() : _sock_fd(-1), _blocking(true), _timeout(1500) {
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}
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void Socket::set_blocking(bool blocking, unsigned int timeout) {
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_blocking = blocking;
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_timeout = timeout;
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}
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int Socket::init_socket(int type) {
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if (_sock_fd != -1)
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return -1;
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int fd = lwip_socket(AF_INET, type, 0);
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if (fd < 0)
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return -1;
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_sock_fd = fd;
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return 0;
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}
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int Socket::set_option(int level, int optname, const void *optval, socklen_t optlen) {
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return lwip_setsockopt(_sock_fd, level, optname, optval, optlen);
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}
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int Socket::get_option(int level, int optname, void *optval, socklen_t *optlen) {
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return lwip_getsockopt(_sock_fd, level, optname, optval, optlen);
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}
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int Socket::select(struct timeval *timeout, bool read, bool write) {
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fd_set fdSet;
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FD_ZERO(&fdSet);
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FD_SET(_sock_fd, &fdSet);
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fd_set* readset = (read ) ? (&fdSet) : (NULL);
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fd_set* writeset = (write) ? (&fdSet) : (NULL);
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int ret = lwip_select(FD_SETSIZE, readset, writeset, NULL, timeout);
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return (ret <= 0 || !FD_ISSET(_sock_fd, &fdSet)) ? (-1) : (0);
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}
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int Socket::wait_readable(TimeInterval& timeout) {
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return select(&timeout._time, true, false);
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}
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int Socket::wait_writable(TimeInterval& timeout) {
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return select(&timeout._time, false, true);
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}
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int Socket::close(bool shutdown) {
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if (_sock_fd < 0)
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return -1;
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if (shutdown)
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lwip_shutdown(_sock_fd, SHUT_RDWR);
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lwip_close(_sock_fd);
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_sock_fd = -1;
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return 0;
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}
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Socket::~Socket() {
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close(); //Don't want to leak
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}
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TimeInterval::TimeInterval(unsigned int ms) {
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_time.tv_sec = ms / 1000;
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_time.tv_usec = (ms - (_time.tv_sec * 1000)) * 1000;
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}
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