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/*
* File : dfs_net.c
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2015-2016, RT-Thread Development Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Change Logs:
* Date Author Notes
* 2015-02-17 Bernard First version
* 2016-05-07 Bernard Rename dfs_lwip to dfs_net
*/
#include <rtthread.h>
#include <dfs.h>
#include <dfs_fs.h>
#include <dfs_file.h>
#include <dfs_posix.h>
#include <rtdevice.h>
#include <sys/socket.h>
#include <dfs_poll.h>
#include "dfs_net.h"
int dfs_net_getsocket(int fd)
{
int sock;
struct dfs_fd *_dfs_fd;
_dfs_fd = fd_get(fd);
if (_dfs_fd == NULL) return -1;
if (_dfs_fd->type != FT_SOCKET) sock = -1;
else sock = (int)_dfs_fd->data;
fd_put(_dfs_fd); /* put this dfs fd */
return sock;
}
static int dfs_net_ioctl(struct dfs_fd* file, int cmd, void* args)
{
return -EIO;
}
static int dfs_net_read(struct dfs_fd* file, void *buf, size_t count)
{
int sock;
sock = (int)file->data;
count = lwip_read(sock, buf, count);
return count;
}
static int dfs_net_write(struct dfs_fd *file, const void *buf, size_t count)
{
int sock;
sock = (int)file->data;
count = lwip_write(sock, buf, count);
return count;
}
static int dfs_net_close(struct dfs_fd* file)
{
int sock;
int result;
sock = (int)file->data;
result = lwip_close(sock);
if (result == 0) return RT_EOK;
return -result;
}
static int dfs_net_poll(struct dfs_fd *file, struct rt_pollreq *req)
{
int sfd;
int mask = 0;
struct lwip_sock *sock;
sfd = (int)file->data;
sock = lwip_tryget_socket(sfd);
if (sock != NULL)
{
rt_base_t level;
rt_poll_add(&sock->wait_head, req);
level = rt_hw_interrupt_disable();
if (sock->rcvevent)
{
mask |= POLLIN;
}
if (sock->sendevent)
{
mask |= POLLOUT;
}
if (sock->errevent)
{
mask |= POLLERR;
}
rt_hw_interrupt_enable(level);
}
return mask;
}
const struct dfs_file_ops _net_fops =
{
NULL, /* open */
dfs_net_close,
dfs_net_ioctl,
dfs_net_read,
dfs_net_write,
NULL,
NULL, /* lseek */
NULL, /* getdents */
dfs_net_poll,
};
const struct dfs_file_ops *dfs_net_get_fops(void)
{
return &_net_fops;
}
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