[lttng-modules.git] / lttng-tracer.h

#ifndef _LTTNG_TRACER_H
#define _LTTNG_TRACER_H

/*
 * lttng-tracer.h
 *
 * Copyright (C) 2005-2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
 *
 * This contains the definitions for the Linux Trace Toolkit tracer.
 *
 * Dual LGPL v2.1/GPL v2 license.
 */

#include <stdarg.h>
#include <linux/types.h>
#include <linux/limits.h>
#include <linux/list.h>
#include <linux/cache.h>
#include <linux/timex.h>
#include <linux/wait.h>
#include <asm/atomic.h>
#include <asm/local.h>

#include "wrapper/trace-clock.h"
#include "lttng-tracer-core.h"
#include "lttng-events.h"

#define LTTNG_MODULES_MAJOR_VERSION 2
#define LTTNG_MODULES_MINOR_VERSION 0
#define LTTNG_MODULES_PATCHLEVEL_VERSION 0

#ifndef CHAR_BIT
#define CHAR_BIT 8
#endif

/* Number of bytes to log with a read/write event */
#define LTTNG_LOG_RW_SIZE		32L
#define LTTNG_MAX_SMALL_SIZE		0xFFFFU

#ifdef RING_BUFFER_ALIGN
#define lttng_alignof(type)	__alignof__(type)
#else
#define lttng_alignof(type)	1
#endif

/* Tracer properties */
#define CTF_MAGIC_NUMBER		0xC1FC1FC1
#define TSDL_MAGIC_NUMBER		0x75D11D57

/* CTF specification version followed */
#define CTF_SPEC_MAJOR			1
#define CTF_SPEC_MINOR			8

/*
 * Number of milliseconds to retry before failing metadata writes on buffer full
 * condition. (10 seconds)
 */
#define LTTNG_METADATA_TIMEOUT_MSEC	10000

#define LTTNG_RFLAG_EXTENDED		RING_BUFFER_RFLAG_END
#define LTTNG_RFLAG_END			(LTTNG_RFLAG_EXTENDED << 1)

#endif /* _LTTNG_TRACER_H */
Commit	Line	Data
	1	#ifndef _LTTNG_TRACER_H
	2	#define _LTTNG_TRACER_H
	3
	4	/*
	5	* lttng-tracer.h
	6	*
	7	* Copyright (C) 2005-2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
	8	*
	9	* This contains the definitions for the Linux Trace Toolkit tracer.
	10	*
	11	* Dual LGPL v2.1/GPL v2 license.
	12	*/
	13
	14	#include <stdarg.h>
	15	#include <linux/types.h>
	16	#include <linux/limits.h>
	17	#include <linux/list.h>
	18	#include <linux/cache.h>
	19	#include <linux/timex.h>
	20	#include <linux/wait.h>
	21	#include <asm/atomic.h>
	22	#include <asm/local.h>
	23
	24	#include "wrapper/trace-clock.h"
	25	#include "lttng-tracer-core.h"
	26	#include "lttng-events.h"
	27
	28	#define LTTNG_MODULES_MAJOR_VERSION 2
	29	#define LTTNG_MODULES_MINOR_VERSION 0
	30	#define LTTNG_MODULES_PATCHLEVEL_VERSION 0
	31
	32	#ifndef CHAR_BIT
	33	#define CHAR_BIT 8
	34	#endif
	35
	36	/* Number of bytes to log with a read/write event */
	37	#define LTTNG_LOG_RW_SIZE 32L
	38	#define LTTNG_MAX_SMALL_SIZE 0xFFFFU
	39
	40	#ifdef RING_BUFFER_ALIGN
	41	#define lttng_alignof(type) __alignof__(type)
	42	#else
	43	#define lttng_alignof(type) 1
	44	#endif
	45
	46	/* Tracer properties */
	47	#define CTF_MAGIC_NUMBER 0xC1FC1FC1
	48	#define TSDL_MAGIC_NUMBER 0x75D11D57
	49
	50	/* CTF specification version followed */
	51	#define CTF_SPEC_MAJOR 1
	52	#define CTF_SPEC_MINOR 8
	53
	54	/*
	55	* Number of milliseconds to retry before failing metadata writes on buffer full
	56	* condition. (10 seconds)
	57	*/
	58	#define LTTNG_METADATA_TIMEOUT_MSEC 10000
	59
	60	#define LTTNG_RFLAG_EXTENDED RING_BUFFER_RFLAG_END
	61	#define LTTNG_RFLAG_END (LTTNG_RFLAG_EXTENDED << 1)
	62
	63	#endif /* _LTTNG_TRACER_H */