src/common/compat/tid.h

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