drd/tests/linuxthreads_det.c

   1 /** Test whether DRD recognizes LinuxThreads as LinuxThreads and NPTL as
   2  *  NPTL.
   3  */
   4
   5
   6 #include <pthread.h>
   7 #include <semaphore.h>
   8 #include <unistd.h>
   9
  10
  11 static pid_t s_main_thread_pid;
  12
  13
  14 void* thread_func(void* arg)
  15 {
  16   if (s_main_thread_pid == getpid())
  17   {
  18     write(STDOUT_FILENO, "NPTL or non-Linux POSIX threads implementation detected.\n", 57);
  19   }
  20   else
  21   {
  22     write(STDOUT_FILENO, "Detected LinuxThreads as POSIX threads implementation.\n", 55);
  23   }
  24   return 0;
  25 }
  26
  27 int main(int argc, char** argv)
  28 {
  29   pthread_t threadid;
  30
  31   s_main_thread_pid = getpid();
  32   pthread_create(&threadid, 0, thread_func, 0);
  33   pthread_join(threadid, 0);
  34   return 0;
  35 }