lttng-tracer.h

#ifndef _LTTNG_TRACER_H
#define _LTTNG_TRACER_H

/*
 * lttng-tracer.h
 *
 * This contains the definitions for the Linux Trace Toolkit Next
 * Generation tracer.
 *
 * Copyright (C) 2005-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; only
 * version 2.1 of the License.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

#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 <wrapper/compiler.h>
#include <lttng-tracer-core.h>
#include <lttng-events.h>

#define LTTNG_MODULES_MAJOR_VERSION 2
#define LTTNG_MODULES_MINOR_VERSION 9
#define LTTNG_MODULES_PATCHLEVEL_VERSION 0
#define LTTNG_MODULES_EXTRAVERSION "-rc1"

#define LTTNG_VERSION_NAME		"Joannès"
#define LTTNG_VERSION_DESCRIPTION	"Berliner Weisse style beer from the Trèfle Noir microbrewery in Rouyn-Noranda."

#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 */