Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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> |
Ingo Molnar | 0ac1759 | 2006-03-23 03:00:37 -0800 | [diff] [blame] | 7 | #include <linux/mutex.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8 | |
| 9 | struct seq_operations; |
| 10 | struct file; |
| 11 | struct vfsmount; |
| 12 | struct dentry; |
| 13 | struct inode; |
| 14 | |
| 15 | struct seq_file { |
| 16 | char *buf; |
| 17 | size_t size; |
| 18 | size_t from; |
| 19 | size_t count; |
| 20 | loff_t index; |
| 21 | loff_t version; |
Ingo Molnar | 0ac1759 | 2006-03-23 03:00:37 -0800 | [diff] [blame] | 22 | struct mutex lock; |
Helge Deller | 15ad7cd | 2006-12-06 20:40:36 -0800 | [diff] [blame] | 23 | const struct seq_operations *op; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 24 | void *private; |
| 25 | }; |
| 26 | |
| 27 | struct 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 | |
Helge Deller | 15ad7cd | 2006-12-06 20:40:36 -0800 | [diff] [blame] | 34 | int seq_open(struct file *, const struct seq_operations *); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 35 | ssize_t seq_read(struct file *, char __user *, size_t, loff_t *); |
| 36 | loff_t seq_lseek(struct file *, loff_t, int); |
| 37 | int seq_release(struct inode *, struct file *); |
| 38 | int seq_escape(struct seq_file *, const char *, const char *); |
| 39 | int seq_putc(struct seq_file *m, char c); |
| 40 | int seq_puts(struct seq_file *m, const char *s); |
| 41 | |
| 42 | int seq_printf(struct seq_file *, const char *, ...) |
| 43 | __attribute__ ((format (printf,2,3))); |
| 44 | |
| 45 | int seq_path(struct seq_file *, struct vfsmount *, struct dentry *, char *); |
| 46 | |
| 47 | int single_open(struct file *, int (*)(struct seq_file *, void *), void *); |
| 48 | int single_release(struct inode *, struct file *); |
Pavel Emelyanov | 3969903 | 2007-10-10 02:28:42 -0700 | [diff] [blame^] | 49 | void *__seq_open_private(struct file *, const struct seq_operations *, int); |
| 50 | int seq_open_private(struct file *, const struct seq_operations *, int); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 51 | int seq_release_private(struct inode *, struct file *); |
| 52 | |
| 53 | #define SEQ_START_TOKEN ((void *)1) |
| 54 | |
Pavel Emelianov | bcf67e1 | 2007-07-10 17:22:26 -0700 | [diff] [blame] | 55 | /* |
| 56 | * Helpers for iteration over list_head-s in seq_files |
| 57 | */ |
| 58 | |
| 59 | extern struct list_head *seq_list_start(struct list_head *head, |
| 60 | loff_t pos); |
| 61 | extern struct list_head *seq_list_start_head(struct list_head *head, |
| 62 | loff_t pos); |
| 63 | extern struct list_head *seq_list_next(void *v, struct list_head *head, |
| 64 | loff_t *ppos); |
| 65 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 66 | #endif |
| 67 | #endif |