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#ifndef _LINUX_SEQ_BUF_H
#define _LINUX_SEQ_BUF_H
#include <linux/fs.h>
/*
* Trace sequences are used to allow a function to call several other functions
* to create a string of data to use.
*/
/**
* seq_buf - seq buffer structure
* @buffer: pointer to the buffer
* @size: size of the buffer
* @len: the amount of data inside the buffer
* @readpos: The next position to read in the buffer.
*/
struct seq_buf {
char *buffer;
size_t size;
size_t len;
loff_t readpos;
};
static inline void seq_buf_clear(struct seq_buf *s)
{
s->len = 0;
s->readpos = 0;
}
static inline void
seq_buf_init(struct seq_buf *s, unsigned char *buf, unsigned int size)
{
s->buffer = buf;
s->size = size;
seq_buf_clear(s);
}
static inline void
seq_buf_set_overflow(struct seq_buf *s)
{
s->len = s->size + 1;
}
/* How much buffer was written? */
static inline unsigned int seq_buf_used(struct seq_buf *s)
{
return min(s->len, s->size);
}
extern __printf(2, 3)
int seq_buf_printf(struct seq_buf *s, const char *fmt, ...);
extern __printf(2, 0)
int seq_buf_vprintf(struct seq_buf *s, const char *fmt, va_list args);
#endif /* _LINUX_SEQ_BUF_H */
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