File content as of revision 34:7d44648ec5f2:

/* 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.h"

Socket::Socket() : _sock_fd(-1),_blocking(true), _timeout(1500)
{
    eth = WIZnet_Chip::getInstance();
    if (eth == NULL) {
        printf("Socket constructor error: no W7500 instance available!\r\n");
    }
}

void Socket::set_blocking(bool blocking, unsigned int timeout)
{
    _blocking = blocking;
    _timeout = timeout;
}

int Socket::close()
{
    // add this code refer from EthernetInterface.
    // update by Patrick Pollet
    int res;
    res = eth->close(_sock_fd);
    _sock_fd = -1;
    return (res)? 0: -1;
}

Socket::~Socket()
{
    close(); //Don't want to leak
}