100 lines
2.5 KiB
C
100 lines
2.5 KiB
C
/*
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* File : dfs_net.c
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* This file is part of RT-Thread RTOS
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* COPYRIGHT (C) 2006 - 2018, RT-Thread Development Team
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Change Logs:
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* Date Author Notes
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* 2015-02-17 Bernard First version
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* 2016-05-07 Bernard Rename dfs_lwip to dfs_net
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* 2018-03-09 Bernard Fix the last data issue in poll.
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* 2018-05-24 ChenYong Add socket abstraction layer
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*/
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#include <rtthread.h>
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#include <dfs.h>
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#include <dfs_net.h>
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#include <sys/socket.h>
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int dfs_net_getsocket(int fd)
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{
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int socket;
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struct dfs_fd *_dfs_fd;
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_dfs_fd = fd_get(fd);
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if (_dfs_fd == NULL) return -1;
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if (_dfs_fd->type != FT_SOCKET) socket = -1;
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else socket = (int)_dfs_fd->data;
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fd_put(_dfs_fd); /* put this dfs fd */
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return socket;
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}
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static int dfs_net_ioctl(struct dfs_fd* file, int cmd, void* args)
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{
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return -EIO;
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}
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static int dfs_net_read(struct dfs_fd* file, void *buf, size_t count)
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{
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int socket = (int) file->data;
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return sal_recvfrom(socket, buf, count, 0, NULL, NULL);
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}
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static int dfs_net_write(struct dfs_fd *file, const void *buf, size_t count)
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{
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int socket = (int) file->data;
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return sal_sendto(socket, buf, count, 0, NULL, 0);
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}
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static int dfs_net_close(struct dfs_fd* file)
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{
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int socket = (int) file->data;
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return sal_closesocket(socket);
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}
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static int dfs_net_poll(struct dfs_fd *file, struct rt_pollreq *req)
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{
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extern int sal_poll(struct dfs_fd *file, struct rt_pollreq *req);
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return sal_poll(file, req);
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}
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const struct dfs_file_ops _net_fops =
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{
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NULL, /* open */
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dfs_net_close,
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dfs_net_ioctl,
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dfs_net_read,
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dfs_net_write,
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NULL,
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NULL, /* lseek */
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NULL, /* getdents */
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dfs_net_poll,
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};
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const struct dfs_file_ops *dfs_net_get_fops(void)
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{
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return &_net_fops;
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}
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