[lttv.git] / usertrace-fast / ltt-usertrace-fast.h


/* LTTng user-space "fast" tracing header
 *
 * Copyright 2006 Mathieu Desnoyers
 *
 */

#ifndef _LTT_USERTRACE_FAST_H
#define _LTT_USERTRACE_FAST_H

#include <errno.h>
#include <asm/atomic.h>

#ifndef	LTT_BUF_SIZE_CPU
#define LTT_BUF_SIZE_CPU 1048576
#endif //LTT_BUF_SIZE_CPU

#ifndef	LTT_BUF_SIZE_FACILITIES
#define LTT_BUF_SIZE_FACILITIES 4096
#endif //LTT_BUF_SIZE_FACILITIES

struct ltt_buf {
	atomic_t	offset;
	atomic_t	reserve_count;
	atomic_t	commit_count;

	atomic_t	events_lost;
};

struct lttng_trace_info {
	struct _pthread_cleanup_buffer cleanup;
	int init;
	int filter;
	atomic_t nesting;
	struct {
		struct ltt_buf facilities;
		char facilities_buf[LTT_BUF_SIZE_FACILITIES] __attribute__ ((aligned (8)));
		struct ltt_buf cpu;
		char cpu_buf[LTT_BUF_SIZE_CPU] __attribute__ ((aligned (8)));
	} channel;
};

extern __thread struct lttng_trace_info lttng_trace_info;

void ltt_thread_init(void);

#endif //_LTT_USERTRACE_FAST_H
Commit	Line	Data
b09f3215	1
04180f7f	2	/* LTTng user-space "fast" tracing header
b09f3215	3	*
	4	* Copyright 2006 Mathieu Desnoyers
	5	*
	6	*/
	7
04180f7f	8	#ifndef _LTT_USERTRACE_FAST_H
04180f7f	9	#define _LTT_USERTRACE_FAST_H
b09f3215	10
b09f3215	11	#include <errno.h>
b09f3215	12	#include <asm/atomic.h>
b09f3215	13
51bf1553	14	#ifndef LTT_BUF_SIZE_CPU
	15	#define LTT_BUF_SIZE_CPU 1048576
	16	#endif //LTT_BUF_SIZE_CPU
b09f3215	17
51bf1553	18	#ifndef LTT_BUF_SIZE_FACILITIES
	19	#define LTT_BUF_SIZE_FACILITIES 4096
	20	#endif //LTT_BUF_SIZE_FACILITIES
b09f3215	21
b09f3215	22	struct ltt_buf {
b09f3215	23	atomic_t offset;
	24	atomic_t reserve_count;
	25	atomic_t commit_count;
	26
	27	atomic_t events_lost;
	28	};
	29
	30	struct lttng_trace_info {
51bf1553	31	struct _pthread_cleanup_buffer cleanup;
1c48e587	32	int init;
b09f3215	33	int filter;
	34	atomic_t nesting;
	35	struct {
	36	struct ltt_buf facilities;
51bf1553	37	char facilities_buf[LTT_BUF_SIZE_FACILITIES] __attribute__ ((aligned (8)));
b09f3215	38	struct ltt_buf cpu;
51bf1553	39	char cpu_buf[LTT_BUF_SIZE_CPU] __attribute__ ((aligned (8)));
b09f3215	40	} channel;
	41	};
	42
51bf1553	43	extern __thread struct lttng_trace_info lttng_trace_info;
b09f3215	44
51bf1553	45	void ltt_thread_init(void);
b09f3215	46
04180f7f	47	#endif //_LTT_USERTRACE_FAST_H