tests/benchmark/common-states.h

   1 /* Common states for benchmarks. */
   2
   3 #include <unistd.h>
   4
   5 #include <urcu/uatomic.h>
   6
   7 extern volatile int _test_go, _test_stop;
   8
   9 static inline void complete_sleep(unsigned int seconds)
  10 {
  11         while (seconds != 0) {
  12                 seconds = sleep(seconds);
  13         }
  14 }
  15
  16 static inline void begin_test(void)
  17 {
  18         uatomic_store(&_test_go, 1, CMM_RELEASE);
  19 }
  20
  21 static inline void end_test(void)
  22 {
  23         uatomic_store(&_test_stop, 1, CMM_RELAXED);
  24 }
  25
  26 static inline void test_for(unsigned int duration)
  27 {
  28         begin_test();
  29         complete_sleep(duration);
  30         end_test();
  31 }
  32
  33 static inline void wait_until_go(void)
  34 {
  35         while (!uatomic_load(&_test_go, CMM_ACQUIRE))
  36         {
  37         }
  38 }
  39
  40 /*
  41  * returns 0 if test should end.
  42  */
  43 static inline int test_duration_write(void)
  44 {
  45         return !uatomic_load(&_test_stop, CMM_RELAXED);
  46 }
  47
  48 static inline int test_duration_read(void)
  49 {
  50         return !uatomic_load(&_test_stop, CMM_RELAXED);
  51 }