1 #ifndef _LINUX_SEQ_BUF_H
2 #define _LINUX_SEQ_BUF_H
7 * Trace sequences are used to allow a function to call several other functions
8 * to create a string of data to use.
12 * seq_buf - seq buffer structure
13 * @buffer: pointer to the buffer
14 * @size: size of the buffer
15 * @len: the amount of data inside the buffer
16 * @readpos: The next position to read in the buffer.
25 static inline void seq_buf_clear(struct seq_buf *s)
32 seq_buf_init(struct seq_buf *s, unsigned char *buf, unsigned int size)
40 * seq_buf have a buffer that might overflow. When this happens
41 * the len and size are set to be equal.
44 seq_buf_has_overflowed(struct seq_buf *s)
46 return s->len == s->size;
50 seq_buf_set_overflow(struct seq_buf *s)
56 * How much buffer is left on the seq_buf?
58 static inline unsigned int
59 seq_buf_buffer_left(struct seq_buf *s)
61 if (seq_buf_has_overflowed(s))
64 return (s->size - 1) - s->len;
68 int seq_buf_printf(struct seq_buf *s, const char *fmt, ...);
70 int seq_buf_vprintf(struct seq_buf *s, const char *fmt, va_list args);
72 seq_buf_bprintf(struct seq_buf *s, const char *fmt, const u32 *binary);
73 extern int seq_buf_print_seq(struct seq_file *m, struct seq_buf *s);
74 extern int seq_buf_to_user(struct seq_buf *s, char __user *ubuf,
76 extern int seq_buf_puts(struct seq_buf *s, const char *str);
77 extern int seq_buf_putc(struct seq_buf *s, unsigned char c);
78 extern int seq_buf_putmem(struct seq_buf *s, const void *mem, unsigned int len);
79 extern int seq_buf_putmem_hex(struct seq_buf *s, const void *mem,
81 extern int seq_buf_path(struct seq_buf *s, const struct path *path, const char *esc);
83 extern int seq_buf_bitmask(struct seq_buf *s, const unsigned long *maskp,
86 #endif /* _LINUX_SEQ_BUF_H */