#ifndef _LTTNG_UST_TID_H

#define _LTTNG_UST_TID_H

/*

 * lttng/ust-tid.h

 *

 * Copyright 2012 (c) - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>

 *

 * gettid compatibility layer.

 *

 * Permission is hereby granted, free of charge, to any person obtaining a copy

 * of this software and associated documentation files (the "Software"), to deal

 * in the Software without restriction, including without limitation the rights

 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

 * copies of the Software, and to permit persons to whom the Software is

 * furnished to do so, subject to the following conditions:

 *

 * The above copyright notice and this permission notice shall be included in

 * all copies or substantial portions of the Software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE

 * SOFTWARE.

 */

#ifdef __linux__

#include <syscall.h>

#endif

#if defined(_syscall0)

_syscall0(pid_t, gettid)

#elif defined(__NR_gettid)

#include <unistd.h>

static inline pid_t 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 gettid(void)

{

	return getpid();

}

#endif

#endif /* _LTTNG_UST_TID_H */