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