Fix: atomic_add_unless() returns true/false rather than prior value
[lttng-modules.git] / lttng-tracer.h
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1#ifndef _LTTNG_TRACER_H
2#define _LTTNG_TRACER_H
17baffe2 3
1c8284eb 4/*
a90917c3 5 * lttng-tracer.h
17baffe2 6 *
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7 * This contains the definitions for the Linux Trace Toolkit Next
8 * Generation tracer.
1c8284eb 9 *
886d51a3 10 * Copyright (C) 2005-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
1c8284eb 11 *
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12 * This library is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU Lesser General Public
14 * License as published by the Free Software Foundation; only
15 * version 2.1 of the License.
16 *
17 * This library is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 * Lesser General Public License for more details.
21 *
22 * You should have received a copy of the GNU Lesser General Public
23 * License along with this library; if not, write to the Free Software
24 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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25 */
26
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27#include <stdarg.h>
28#include <linux/types.h>
29#include <linux/limits.h>
30#include <linux/list.h>
31#include <linux/cache.h>
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32#include <linux/timex.h>
33#include <linux/wait.h>
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34#include <asm/atomic.h>
35#include <asm/local.h>
36
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37#include <wrapper/trace-clock.h>
38#include <wrapper/compiler.h>
39#include <lttng-tracer-core.h>
40#include <lttng-events.h>
1c8284eb 41
c6c9e10f 42#define LTTNG_MODULES_MAJOR_VERSION 2
fde8140d 43#define LTTNG_MODULES_MINOR_VERSION 8
f1fe1c28 44#define LTTNG_MODULES_PATCHLEVEL_VERSION 4
4a24ffe7 45#define LTTNG_MODULES_EXTRAVERSION ""
80c16bcf 46
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47#define LTTNG_VERSION_NAME "Isseki Nicho"
48#define LTTNG_VERSION_DESCRIPTION "The result of a collaboration between \"Dieu du Ciel!\" and Nagano-based \"Shiga Kogen\", Isseki Nicho is a strong Imperial Dark Saison offering a rich roasted malt flavor combined with a complex fruity finish typical of Saison yeasts."
d117fe45 49
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50#ifndef CHAR_BIT
51#define CHAR_BIT 8
52#endif
53
1c8284eb 54/* Number of bytes to log with a read/write event */
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55#define LTTNG_LOG_RW_SIZE 32L
56#define LTTNG_MAX_SMALL_SIZE 0xFFFFU
1c8284eb 57
d793d5e1 58#ifdef RING_BUFFER_ALIGN
a90917c3 59#define lttng_alignof(type) __alignof__(type)
c099397a 60#else
a90917c3 61#define lttng_alignof(type) 1
d793d5e1 62#endif
1c8284eb 63
1c8284eb 64/* Tracer properties */
1c25284c 65#define CTF_MAGIC_NUMBER 0xC1FC1FC1
881833e3 66#define TSDL_MAGIC_NUMBER 0x75D11D57
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67
68/* CTF specification version followed */
69#define CTF_SPEC_MAJOR 1
70#define CTF_SPEC_MINOR 8
71
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72/*
73 * Number of milliseconds to retry before failing metadata writes on buffer full
74 * condition. (10 seconds)
75 */
76#define LTTNG_METADATA_TIMEOUT_MSEC 10000
77
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78#define LTTNG_RFLAG_EXTENDED RING_BUFFER_RFLAG_END
79#define LTTNG_RFLAG_END (LTTNG_RFLAG_EXTENDED << 1)
64c796d8 80
a90917c3 81#endif /* _LTTNG_TRACER_H */
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