[lttng-tools.git] / include / lttng / constant.h

/*
 * Copyright (C) 2014 - David Goulet <dgoulet@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, version 2.1 only,
 * as published by the Free Software Foundation.
 *
 * 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
 */

#ifndef LTTNG_CONSTANT_H
#define LTTNG_CONSTANT_H

#ifndef LTTNG_DEPRECATED
#if defined (__GNUC__) \
	&& ((__GNUC_MAJOR__ == 4) && (__GNUC_MINOR__ >= 5)  \
			|| __GNUC_MAJOR__ >= 5)
#define LTTNG_DEPRECATED(msg) __attribute__((deprecated(msg)))
#else
#define LTTNG_DEPRECATED(msg) __attribute__((deprecated))
#endif /* defined __GNUC__ */
#endif /* LTTNG_DEPRECATED */

#include <limits.h>
/*
 * Necessary to include the fixed width type limits on glibc versions older
 * than 2.18 when building with a C++ compiler.
 */
#ifndef __STDC_LIMIT_MACROS
#define __STDC_LIMIT_MACROS
#include <stdint.h>
#undef __STDC_LIMIT_MACROS
#else /* #ifndef __STDC_LIMIT_MACROS */
#include <stdint.h>
#endif /* #else #ifndef __STDC_LIMIT_MACROS */
#include <sys/types.h>

/*
 * Event symbol length. Copied from LTTng kernel ABI.
 */
#define LTTNG_SYMBOL_NAME_LEN			256

/*
 * PROC(5) mentions that PID_MAX_LIMIT may not exceed 2^22 on 64-bit HW.
 * We prefer to use 32-bits for simplicity's sake.
 */
#define LTTNG_MAX_PID				INT32_MAX
#define LTTNG_MAX_PID_STR			"2147483647"

#endif /* LTTNG_CONSTANT_H */
Commit	Line	Data
1239a312 DG	1	/*
	2	* Copyright (C) 2014 - David Goulet <dgoulet@efficios.com>
	3	*
	4	* This library is free software; you can redistribute it and/or modify it
	5	* under the terms of the GNU Lesser General Public License, version 2.1 only,
	6	* as published by the Free Software Foundation.
	7	*
	8	* This library is distributed in the hope that it will be useful, but WITHOUT
	9	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	10	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
	11	* for more details.
	12	*
	13	* You should have received a copy of the GNU Lesser General Public License
	14	* along with this library; if not, write to the Free Software Foundation,
	15	* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
	16	*/
	17
	18	#ifndef LTTNG_CONSTANT_H
	19	#define LTTNG_CONSTANT_H
	20
	21	#ifndef LTTNG_DEPRECATED
	22	#if defined (__GNUC__) \
	23	&& ((__GNUC_MAJOR__ == 4) && (__GNUC_MINOR__ >= 5) \
	24	\|\| __GNUC_MAJOR__ >= 5)
	25	#define LTTNG_DEPRECATED(msg) __attribute__((deprecated(msg)))
	26	#else
	27	#define LTTNG_DEPRECATED(msg) __attribute__((deprecated))
	28	#endif /* defined __GNUC__ */
	29	#endif /* LTTNG_DEPRECATED */
	30
	31	#include <limits.h>
	32	/*
	33	* Necessary to include the fixed width type limits on glibc versions older
	34	* than 2.18 when building with a C++ compiler.
	35	*/
	36	#ifndef __STDC_LIMIT_MACROS
	37	#define __STDC_LIMIT_MACROS
	38	#include <stdint.h>
	39	#undef __STDC_LIMIT_MACROS
	40	#else /* #ifndef __STDC_LIMIT_MACROS */
	41	#include <stdint.h>
	42	#endif /* #else #ifndef __STDC_LIMIT_MACROS */
	43	#include <sys/types.h>
	44
	45	/*
	46	* Event symbol length. Copied from LTTng kernel ABI.
	47	*/
fae9a062 JG	48	#define LTTNG_SYMBOL_NAME_LEN 256
	49
	50	/*
	51	* PROC(5) mentions that PID_MAX_LIMIT may not exceed 2^22 on 64-bit HW.
	52	* We prefer to use 32-bits for simplicity's sake.
	53	*/
	54	#define LTTNG_MAX_PID INT32_MAX
	55	#define LTTNG_MAX_PID_STR "2147483647"
1239a312 DG	56
1239a312 DG	57	#endif /* LTTNG_CONSTANT_H */