projects / lttng-ust.git / blame
| Commit | Line | Data |
|---|---|---|
| d9ecffa9 MD |
1 | #ifndef _LTTNG_UST_TID_H |
| 2 | #define _LTTNG_UST_TID_H | |
| 3 | ||
| 4 | /* | |
| 5 | * lttng/ust-tid.h | |
| 6 | * | |
| 7 | * Copyright 2012 (c) - Mathieu Desnoyers <mathieu.desnoyers@efficios.com> | |
| 8 | * | |
| 9 | * gettid compatibility layer. | |
| 10 | * | |
| 11 | * THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED | |
| 12 | * OR IMPLIED. ANY USE IS AT YOUR OWN RISK. | |
| 13 | * | |
| 14 | * Permission is hereby granted to use or copy this program | |
| 15 | * for any purpose, provided the above notices are retained on all copies. | |
| 16 | * Permission to modify the code and to distribute modified code is granted, | |
| 17 | * provided the above notices are retained, and a notice that the code was | |
| 18 | * modified is included with the above copyright notice. | |
| 19 | */ | |
| 20 | ||
| 21 | #ifdef __linux__ | |
| 22 | #include <syscall.h> | |
| 23 | #endif | |
| 24 | ||
| 25 | #if defined(_syscall0) | |
| 26 | _syscall0(pid_t, gettid) | |
| 27 | #elif defined(__NR_gettid) | |
| 28 | #include <unistd.h> | |
| 29 | static inline pid_t gettid(void) | |
| 30 | { | |
| 31 | return syscall(__NR_gettid); | |
| 32 | } | |
| 33 | #else | |
| 34 | #include <sys/types.h> | |
| 35 | #include <unistd.h> | |
| 36 | ||
| 273973c0 | 37 | /* Fall-back on getpid for tid if not available. */ |
| d9ecffa9 MD |
38 | static inline pid_t gettid(void) |
| 39 | { | |
| 40 | return getpid(); | |
| 41 | } | |
| 42 | #endif | |
| 43 | ||
| 44 | #endif /* _LTTNG_UST_TID_H */ |