128 lines
2.8 KiB
C
128 lines
2.8 KiB
C
/*
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* File : dfs_lwip.c
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* This file is part of RT-Thread RTOS
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* COPYRIGHT (C) 2015, 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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*/
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#include <rtthread.h>
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#include <dfs.h>
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#include <dfs_fs.h>
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#include "dfs_lwip.h"
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int dfs_lwip_getsocket(int fd)
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{
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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 == RT_NULL) return -1;
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if (_dfs_fd->type != FT_SOCKET) return -1;
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return (int)_dfs_fd->data;
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}
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int dfs_lwip_ioctl(struct dfs_fd* file, int cmd, void* args)
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{
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return -DFS_STATUS_EIO;
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}
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int dfs_lwip_read(struct dfs_fd* file, void *buf, rt_size_t count)
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{
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int sock;
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sock = (int)file->data;
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count = lwip_read(sock, buf, count);
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return count;
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}
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int dfs_lwip_write(struct dfs_fd *file, const void *buf, rt_size_t count)
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{
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int sock;
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sock = (int)file->data;
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count = lwip_write(sock, buf, count);
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return count;
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}
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int dfs_lwip_close(struct dfs_fd* file)
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{
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int sock;
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int result;
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sock = (int)file->data;
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result = lwip_close(sock);
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if (result == 0) return DFS_STATUS_OK;
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return -result;
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}
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static const struct dfs_filesystem_operation _lwip_fs_ops =
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{
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"lwip",
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DFS_FS_FLAG_DEFAULT,
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RT_NULL, /* mount */
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RT_NULL, /* unmont */
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RT_NULL, /* mkfs */
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RT_NULL, /* statfs */
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RT_NULL, /* open */
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dfs_lwip_close,
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dfs_lwip_ioctl,
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dfs_lwip_read,
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dfs_lwip_write,
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RT_NULL,
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RT_NULL, /* lseek */
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RT_NULL, /* getdents */
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RT_NULL, /* unlink */
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RT_NULL, /* stat */
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RT_NULL, /* rename */
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};
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static struct dfs_filesystem _lwip_fs =
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{
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0, /* dev_id */
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RT_NULL, /* path */
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&_lwip_fs_ops,
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RT_NULL /* data */
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};
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struct dfs_filesystem* dfs_lwip_get_fs(void)
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{
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return &_lwip_fs;
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}
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/*
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NOTE: Beause we don't need to mount lwIP file system, the filesystem_ops is not
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registered to the system.
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int dfs_lwip_system_init(void)
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{
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dfs_register(&_lwip_fs_ops);
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return 0;
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}
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INIT_FS_EXPORT(dfs_lwip_system_init);
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*/
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