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Commit | Line | Data |
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1da177e4 LT |
1 | #ifndef _LINUX_SEQ_FILE_H |
2 | #define _LINUX_SEQ_FILE_H | |
1da177e4 LT |
3 | |
4 | #include <linux/types.h> | |
5 | #include <linux/string.h> | |
0ac1759a | 6 | #include <linux/mutex.h> |
1da177e4 LT |
7 | |
8 | struct seq_operations; | |
9 | struct file; | |
c32c2f63 | 10 | struct path; |
1da177e4 | 11 | struct inode; |
6092d048 | 12 | struct dentry; |
1da177e4 LT |
13 | |
14 | struct seq_file { | |
15 | char *buf; | |
16 | size_t size; | |
17 | size_t from; | |
18 | size_t count; | |
19 | loff_t index; | |
2b47c361 | 20 | u64 version; |
0ac1759a | 21 | struct mutex lock; |
15ad7cdc | 22 | const struct seq_operations *op; |
1da177e4 LT |
23 | void *private; |
24 | }; | |
25 | ||
26 | struct seq_operations { | |
27 | void * (*start) (struct seq_file *m, loff_t *pos); | |
28 | void (*stop) (struct seq_file *m, void *v); | |
29 | void * (*next) (struct seq_file *m, void *v, loff_t *pos); | |
30 | int (*show) (struct seq_file *m, void *v); | |
31 | }; | |
32 | ||
521b5d0c AV |
33 | #define SEQ_SKIP 1 |
34 | ||
15ad7cdc | 35 | int seq_open(struct file *, const struct seq_operations *); |
1da177e4 LT |
36 | ssize_t seq_read(struct file *, char __user *, size_t, loff_t *); |
37 | loff_t seq_lseek(struct file *, loff_t, int); | |
38 | int seq_release(struct inode *, struct file *); | |
39 | int seq_escape(struct seq_file *, const char *, const char *); | |
40 | int seq_putc(struct seq_file *m, char c); | |
41 | int seq_puts(struct seq_file *m, const char *s); | |
42 | ||
43 | int seq_printf(struct seq_file *, const char *, ...) | |
44 | __attribute__ ((format (printf,2,3))); | |
45 | ||
c32c2f63 | 46 | int seq_path(struct seq_file *, struct path *, char *); |
6092d048 | 47 | int seq_dentry(struct seq_file *, struct dentry *, char *); |
9d1bc601 MS |
48 | int seq_path_root(struct seq_file *m, struct path *path, struct path *root, |
49 | char *esc); | |
1da177e4 LT |
50 | |
51 | int single_open(struct file *, int (*)(struct seq_file *, void *), void *); | |
52 | int single_release(struct inode *, struct file *); | |
39699037 PE |
53 | void *__seq_open_private(struct file *, const struct seq_operations *, int); |
54 | int seq_open_private(struct file *, const struct seq_operations *, int); | |
1da177e4 LT |
55 | int seq_release_private(struct inode *, struct file *); |
56 | ||
57 | #define SEQ_START_TOKEN ((void *)1) | |
58 | ||
bcf67e16 PE |
59 | /* |
60 | * Helpers for iteration over list_head-s in seq_files | |
61 | */ | |
62 | ||
63 | extern struct list_head *seq_list_start(struct list_head *head, | |
64 | loff_t pos); | |
65 | extern struct list_head *seq_list_start_head(struct list_head *head, | |
66 | loff_t pos); | |
67 | extern struct list_head *seq_list_next(void *v, struct list_head *head, | |
68 | loff_t *ppos); | |
69 | ||
1da177e4 | 70 | #endif |