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 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; 22 struct mutex lock; 23 struct seq_operations *op; 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 34 int seq_open(struct file *, struct seq_operations *); 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 *); 49 int seq_release_private(struct inode *, struct file *); 50 51 #define SEQ_START_TOKEN ((void *)1) 52 53 #endif 54 #endif 55
