Fix includes in benchmark utilities

1 files changed, 15 insertions, 9 deletions

diff --git a/benchmark/bench.h b/benchmark/bench.h
index 3fc907f..6d181b2 100644
--- a/benchmark/bench.h
+++ b/benchmark/bench.h
@@ -14,30 +14,36 @@
   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */
 
+#ifndef BENCH_H
+#define BENCH_H
+
 #define _POSIX_C_SOURCE 199309L
 
-#include <sys/time.h>
 #include <time.h>
 
+typedef struct timespec BenchmarkTime;
+
 static inline double
-elapsed_s(const struct timespec* start, const struct timespec* end)
+bench_elapsed_s(const BenchmarkTime* start, const BenchmarkTime* end)
 {
   return ((double)(end->tv_sec - start->tv_sec) +
           ((double)(end->tv_nsec - start->tv_nsec) * 0.000000001));
 }
 
-static inline struct timespec
+static inline BenchmarkTime
 bench_start(void)
 {
-  struct timespec start_t;
-  clock_gettime(CLOCK_MONOTONIC, &start_t);
+  BenchmarkTime start_t;
+  clock_gettime(CLOCK_REALTIME, &start_t);
   return start_t;
 }
 
 static inline double
-bench_end(const struct timespec* start_t)
+bench_end(const BenchmarkTime* start_t)
 {
-  struct timespec end_t;
-  clock_gettime(CLOCK_MONOTONIC, &end_t);
-  return elapsed_s(start_t, &end_t);
+  BenchmarkTime end_t;
+  clock_gettime(CLOCK_REALTIME, &end_t);
+  return bench_elapsed_s(start_t, &end_t);
 }
+
+#endif // BENCH_H