Clément BENOIT / Socket

fort Socket

Fork of Socket by mbed official

Socket.cpp@5:300e7ad2dc1d, 2012-07-26 (annotated)

Committer:
emilmont
Date:
Thu Jul 26 15:07:32 2012 +0000
Revision:
5:300e7ad2dc1d
Parent:
3:e6474399e057
Child:
6:cd2e5559786d
Add Endpoint class and UDPPacket class

Who changed what in which revision?

UserRevisionLine numberNew contents of line
emilmont 3:e6474399e057 1 /* Copyright (C) 2012 mbed.org, MIT License
emilmont 3:e6474399e057 2 *
emilmont 3:e6474399e057 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
emilmont 3:e6474399e057 4 * and associated documentation files (the "Software"), to deal in the Software without restriction,
emilmont 3:e6474399e057 5 * including without limitation the rights to use, copy, modify, merge, publish, distribute,
emilmont 3:e6474399e057 6 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
emilmont 3:e6474399e057 7 * furnished to do so, subject to the following conditions:
emilmont 3:e6474399e057 8 *
emilmont 3:e6474399e057 9 * The above copyright notice and this permission notice shall be included in all copies or
emilmont 3:e6474399e057 10 * substantial portions of the Software.
emilmont 3:e6474399e057 11 *
emilmont 3:e6474399e057 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
emilmont 3:e6474399e057 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
emilmont 3:e6474399e057 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
emilmont 3:e6474399e057 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
emilmont 3:e6474399e057 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
emilmont 3:e6474399e057 17 */
emilmont 3:e6474399e057 18 #include "Socket/Socket.h"
emilmont 3:e6474399e057 19 #include <cstring>
emilmont 3:e6474399e057 20
emilmont 3:e6474399e057 21 using std::memset;
emilmont 3:e6474399e057 22
emilmont 3:e6474399e057 23 Socket::Socket() : _sock_fd(-1) {
emilmont 3:e6474399e057 24
emilmont 3:e6474399e057 25 }
emilmont 3:e6474399e057 26
emilmont 5:300e7ad2dc1d 27 int Socket::init_socket(int type) {
emilmont 3:e6474399e057 28 if (_sock_fd != -1)
emilmont 3:e6474399e057 29 return -1;
emilmont 3:e6474399e057 30
emilmont 3:e6474399e057 31 int fd = lwip_socket(AF_INET, type, 0);
emilmont 3:e6474399e057 32 if (fd < 0)
emilmont 3:e6474399e057 33 return -1;
emilmont 3:e6474399e057 34
emilmont 3:e6474399e057 35 _sock_fd = fd;
emilmont 3:e6474399e057 36 return 0;
emilmont 3:e6474399e057 37 }
emilmont 3:e6474399e057 38
emilmont 3:e6474399e057 39
emilmont 3:e6474399e057 40 void Socket::set_timeout(int timeout) {
emilmont 3:e6474399e057 41 _timeout.tv_sec = timeout / 1000;
emilmont 3:e6474399e057 42 _timeout.tv_usec = (timeout - (_timeout.tv_sec * 1000)) * 1000;
emilmont 3:e6474399e057 43 }
emilmont 3:e6474399e057 44
emilmont 3:e6474399e057 45 int Socket::select(fd_set* readset, fd_set* writeset) {
emilmont 3:e6474399e057 46 if ((_timeout.tv_sec == 0) && (_timeout.tv_usec == 0))
emilmont 3:e6474399e057 47 return 0;
emilmont 3:e6474399e057 48
emilmont 3:e6474399e057 49 FD_ZERO(&_fdSet);
emilmont 3:e6474399e057 50 FD_SET(_sock_fd, &_fdSet);
emilmont 3:e6474399e057 51
emilmont 3:e6474399e057 52 int ret = lwip_select(FD_SETSIZE, readset, writeset, NULL, &_timeout);
emilmont 3:e6474399e057 53 return (ret <= 0 || !FD_ISSET(_sock_fd, &_fdSet)) ? (-1) : (0);
emilmont 3:e6474399e057 54 }
emilmont 3:e6474399e057 55
emilmont 3:e6474399e057 56 int Socket::wait_readable(void) {
emilmont 3:e6474399e057 57 return select(&_fdSet, NULL);
emilmont 3:e6474399e057 58 }
emilmont 3:e6474399e057 59
emilmont 3:e6474399e057 60 int Socket::wait_writable(void) {
emilmont 3:e6474399e057 61 return select(NULL, &_fdSet);
emilmont 3:e6474399e057 62 }
emilmont 3:e6474399e057 63
emilmont 3:e6474399e057 64 int Socket::close() {
emilmont 3:e6474399e057 65 if (_sock_fd < 0)
emilmont 3:e6474399e057 66 return -1;
emilmont 3:e6474399e057 67
emilmont 3:e6474399e057 68 lwip_close(_sock_fd);
emilmont 3:e6474399e057 69 _sock_fd = -1;
emilmont 3:e6474399e057 70
emilmont 3:e6474399e057 71 return 0;
emilmont 3:e6474399e057 72 }