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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> |
50ac2d69 AD |
7 | #include <linux/cpumask.h> |
8 | #include <linux/nodemask.h> | |
1da177e4 LT |
9 | |
10 | struct seq_operations; | |
11 | struct file; | |
c32c2f63 | 12 | struct path; |
1da177e4 | 13 | struct inode; |
6092d048 | 14 | struct dentry; |
1da177e4 LT |
15 | |
16 | struct seq_file { | |
17 | char *buf; | |
18 | size_t size; | |
19 | size_t from; | |
20 | size_t count; | |
21 | loff_t index; | |
2b47c361 | 22 | u64 version; |
0ac1759a | 23 | struct mutex lock; |
15ad7cdc | 24 | const struct seq_operations *op; |
1da177e4 LT |
25 | void *private; |
26 | }; | |
27 | ||
28 | struct seq_operations { | |
29 | void * (*start) (struct seq_file *m, loff_t *pos); | |
30 | void (*stop) (struct seq_file *m, void *v); | |
31 | void * (*next) (struct seq_file *m, void *v, loff_t *pos); | |
32 | int (*show) (struct seq_file *m, void *v); | |
33 | }; | |
34 | ||
521b5d0c AV |
35 | #define SEQ_SKIP 1 |
36 | ||
74e2f334 | 37 | char *mangle_path(char *s, char *p, char *esc); |
15ad7cdc | 38 | int seq_open(struct file *, const struct seq_operations *); |
1da177e4 LT |
39 | ssize_t seq_read(struct file *, char __user *, size_t, loff_t *); |
40 | loff_t seq_lseek(struct file *, loff_t, int); | |
41 | int seq_release(struct inode *, struct file *); | |
42 | int seq_escape(struct seq_file *, const char *, const char *); | |
43 | int seq_putc(struct seq_file *m, char c); | |
44 | int seq_puts(struct seq_file *m, const char *s); | |
45 | ||
46 | int seq_printf(struct seq_file *, const char *, ...) | |
47 | __attribute__ ((format (printf,2,3))); | |
48 | ||
c32c2f63 | 49 | int seq_path(struct seq_file *, struct path *, char *); |
6092d048 | 50 | int seq_dentry(struct seq_file *, struct dentry *, char *); |
9d1bc601 MS |
51 | int seq_path_root(struct seq_file *m, struct path *path, struct path *root, |
52 | char *esc); | |
cb78a0ce RR |
53 | int seq_bitmap(struct seq_file *m, const unsigned long *bits, |
54 | unsigned int nr_bits); | |
55 | static inline int seq_cpumask(struct seq_file *m, const struct cpumask *mask) | |
50ac2d69 | 56 | { |
e12f0102 | 57 | return seq_bitmap(m, mask->bits, nr_cpu_ids); |
50ac2d69 AD |
58 | } |
59 | ||
60 | static inline int seq_nodemask(struct seq_file *m, nodemask_t *mask) | |
61 | { | |
62 | return seq_bitmap(m, mask->bits, MAX_NUMNODES); | |
63 | } | |
1da177e4 | 64 | |
3eda2011 LJ |
65 | int seq_bitmap_list(struct seq_file *m, unsigned long *bits, |
66 | unsigned int nr_bits); | |
67 | ||
68 | static inline int seq_cpumask_list(struct seq_file *m, cpumask_t *mask) | |
69 | { | |
70 | return seq_bitmap_list(m, mask->bits, NR_CPUS); | |
71 | } | |
72 | ||
73 | static inline int seq_nodemask_list(struct seq_file *m, nodemask_t *mask) | |
74 | { | |
75 | return seq_bitmap_list(m, mask->bits, MAX_NUMNODES); | |
76 | } | |
77 | ||
1da177e4 LT |
78 | int single_open(struct file *, int (*)(struct seq_file *, void *), void *); |
79 | int single_release(struct inode *, struct file *); | |
39699037 PE |
80 | void *__seq_open_private(struct file *, const struct seq_operations *, int); |
81 | int seq_open_private(struct file *, const struct seq_operations *, int); | |
1da177e4 LT |
82 | int seq_release_private(struct inode *, struct file *); |
83 | ||
84 | #define SEQ_START_TOKEN ((void *)1) | |
85 | ||
bcf67e16 PE |
86 | /* |
87 | * Helpers for iteration over list_head-s in seq_files | |
88 | */ | |
89 | ||
90 | extern struct list_head *seq_list_start(struct list_head *head, | |
91 | loff_t pos); | |
92 | extern struct list_head *seq_list_start_head(struct list_head *head, | |
93 | loff_t pos); | |
94 | extern struct list_head *seq_list_next(void *v, struct list_head *head, | |
95 | loff_t *ppos); | |
96 | ||
1da177e4 | 97 | #endif |