1 /*
2 * Copyright (c) 2006-2018, RT-Thread Development Team
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 *
6 * Change Logs:
7 * Date Author Notes
8 * 2015-02-17 Bernard First version
9 * 2016-05-07 Bernard Rename dfs_lwip to dfs_net
10 * 2018-03-09 Bernard Fix the last data issue in poll.
11 * 2018-05-24 ChenYong Add socket abstraction layer
12 */
13
14 #include <rtthread.h>
15
16 #include <dfs.h>
17 #include <dfs_net.h>
18
19 #include <sys/socket.h>
20
dfs_net_getsocket(int fd)21 int dfs_net_getsocket(int fd)
22 {
23 int socket;
24 struct dfs_fd *_dfs_fd;
25
26 _dfs_fd = fd_get(fd);
27 if (_dfs_fd == NULL) return -1;
28
29 if (_dfs_fd->type != FT_SOCKET) socket = -1;
30 else socket = (int)_dfs_fd->data;
31
32 fd_put(_dfs_fd); /* put this dfs fd */
33 return socket;
34 }
35
dfs_net_ioctl(struct dfs_fd * file,int cmd,void * args)36 static int dfs_net_ioctl(struct dfs_fd* file, int cmd, void* args)
37 {
38 return -EIO;
39 }
40
dfs_net_read(struct dfs_fd * file,void * buf,size_t count)41 static int dfs_net_read(struct dfs_fd* file, void *buf, size_t count)
42 {
43 int socket = (int) file->data;
44
45 return sal_recvfrom(socket, buf, count, 0, NULL, NULL);
46 }
47
dfs_net_write(struct dfs_fd * file,const void * buf,size_t count)48 static int dfs_net_write(struct dfs_fd *file, const void *buf, size_t count)
49 {
50 int socket = (int) file->data;
51
52 return sal_sendto(socket, buf, count, 0, NULL, 0);
53 }
54
dfs_net_close(struct dfs_fd * file)55 static int dfs_net_close(struct dfs_fd* file)
56 {
57 int socket = (int) file->data;
58
59 return sal_closesocket(socket);
60 }
61
dfs_net_poll(struct dfs_fd * file,struct rt_pollreq * req)62 static int dfs_net_poll(struct dfs_fd *file, struct rt_pollreq *req)
63 {
64 extern int sal_poll(struct dfs_fd *file, struct rt_pollreq *req);
65
66 return sal_poll(file, req);
67 }
68
69 const struct dfs_file_ops _net_fops =
70 {
71 NULL, /* open */
72 dfs_net_close,
73 dfs_net_ioctl,
74 dfs_net_read,
75 dfs_net_write,
76 NULL,
77 NULL, /* lseek */
78 NULL, /* getdents */
79 dfs_net_poll,
80 };
81
dfs_net_get_fops(void)82 const struct dfs_file_ops *dfs_net_get_fops(void)
83 {
84 return &_net_fops;
85 }
86