openmp/tools/multiplex/tests/ompt-signal.h

   1 // These functions are used to provide a signal-wait mechanism to enforce
   2 // expected scheduling for the test cases. Conditional variable (s) needs to be
   3 // shared! Initialize to 0
   4 #include <unistd.h>
   5
   6 #define OMPT_SIGNAL(s) ompt_signal(&s)
   7 // inline
   8 void ompt_signal(int *s) {
   9 #pragma omp atomic
  10   (*s)++;
  11 }
  12
  13 #define OMPT_WAIT(s, v) ompt_wait(&s, v)
  14 // wait for s >= v
  15 // inline
  16 void ompt_wait(int *s, int v) {
  17   int wait = 0;
  18   do {
  19     usleep(10);
  20 #pragma omp atomic read
  21     wait = (*s);
  22   } while (wait < v);
  23 }