[lttng-ust.git] / include / lttng / ust-tid.h

/*
 * SPDX-License-Identifier: MIT
 *
 * Copyright (C) 2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
 *
 * gettid compatibility layer.
 */

#ifndef _LTTNG_UST_TID_H
#define _LTTNG_UST_TID_H

#ifdef __linux__
#include <sys/syscall.h>
#endif

#if defined(__NR_gettid)

#include <unistd.h>
static inline pid_t lttng_gettid(void)
{
	return syscall(__NR_gettid);
}

#else

#include <sys/types.h>
#include <unistd.h>

/* Fall-back on getpid for tid if not available. */
static inline pid_t lttng_gettid(void)
{
	return getpid();
}

#endif

#endif /* _LTTNG_UST_TID_H */
Commit	Line	Data
49c0da7d	1	/*
c0c0989a	2	* SPDX-License-Identifier: MIT
49c0da7d	3	*
c0c0989a	4	* Copyright (C) 2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
49c0da7d MD	5	*
49c0da7d MD	6	* gettid compatibility layer.
49c0da7d MD	7	*/
49c0da7d MD	8
c0c0989a MJ	9	#ifndef _LTTNG_UST_TID_H
	10	#define _LTTNG_UST_TID_H
	11
49c0da7d	12	#ifdef __linux__
809b9294	13	#include <sys/syscall.h>
49c0da7d MD	14	#endif
49c0da7d MD	15
0f029713 MJ	16	#if defined(__NR_gettid)
0f029713 MJ	17
49c0da7d	18	#include <unistd.h>
0f029713	19	static inline pid_t lttng_gettid(void)
49c0da7d MD	20	{
	21	return syscall(__NR_gettid);
	22	}
0f029713	23
49c0da7d	24	#else
0f029713	25
49c0da7d MD	26	#include <sys/types.h>
	27	#include <unistd.h>
	28
d02d8cf8	29	/* Fall-back on getpid for tid if not available. */
0f029713	30	static inline pid_t lttng_gettid(void)
49c0da7d MD	31	{
	32	return getpid();
	33	}
0f029713	34
49c0da7d MD	35	#endif
	36
	37	#endif /* _LTTNG_UST_TID_H */