1#ifndef _LINUX_SEQ_FILE_H
2#define _LINUX_SEQ_FILE_H
3#ifdef __KERNEL__
4
5#include <linux/types.h>
6#include <linux/string.h>
7#include <linux/mutex.h>
8
9struct seq_operations;
10struct file;
11struct vfsmount;
12struct dentry;
13struct inode;
14
15struct seq_file {
16 char *buf;
17 size_t size;
18 size_t from;
19 size_t count;
20 loff_t index;
21 u64 version;
22 struct mutex lock;
23 const struct seq_operations *op;
24 void *private;
25};
26
27struct seq_operations {
28 void * (*start) (struct seq_file *m, loff_t *pos);
29 void (*stop) (struct seq_file *m, void *v);
30 void * (*next) (struct seq_file *m, void *v, loff_t *pos);
31 int (*show) (struct seq_file *m, void *v);
32};
33
34int seq_open(struct file *, const struct seq_operations *);
35ssize_t seq_read(struct file *, char __user *, size_t, loff_t *);
36loff_t seq_lseek(struct file *, loff_t, int);
37int seq_release(struct inode *, struct file *);
38int seq_escape(struct seq_file *, const char *, const char *);
39int seq_putc(struct seq_file *m, char c);
40int seq_puts(struct seq_file *m, const char *s);
41
42int seq_printf(struct seq_file *, const char *, ...)
43 __attribute__ ((format (printf,2,3)));
44
45int seq_path(struct seq_file *, struct vfsmount *, struct dentry *, char *);
46
47int single_open(struct file *, int (*)(struct seq_file *, void *), void *);
48int single_release(struct inode *, struct file *);
49void *__seq_open_private(struct file *, const struct seq_operations *, int);
50int seq_open_private(struct file *, const struct seq_operations *, int);
51int seq_release_private(struct inode *, struct file *);
52
53#define SEQ_START_TOKEN ((void *)1)
54
55
56
57
58
59extern struct list_head *seq_list_start(struct list_head *head,
60 loff_t pos);
61extern struct list_head *seq_list_start_head(struct list_head *head,
62 loff_t pos);
63extern struct list_head *seq_list_next(void *v, struct list_head *head,
64 loff_t *ppos);
65
66#endif
67#endif
68
