1 files changed, 38 insertions, 0 deletions
diff --git a/tools/bench.h b/tools/bench.h
new file mode 100644
index 0000000..d87102e
--- /dev/null
+++ b/tools/bench.h
@@ -0,0 +1,38 @@
+// Copyright 2011-2019 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: ISC
+
+/**
+   @file bench.h A simple real-time benchmarking API.
+*/
+
+#ifndef BENCH_H
+#define BENCH_H
+
+#include <time.h>
+
+typedef struct timespec BenchmarkTime;
+
+static inline double
+bench_elapsed_s(const BenchmarkTime* start, const BenchmarkTime* end)
+{
+  return ((end->tv_sec - start->tv_sec) +
+          ((end->tv_nsec - start->tv_nsec) * 0.000000001));
+}
+
+static inline BenchmarkTime
+bench_start(void)
+{
+  BenchmarkTime start_t;
+  clock_gettime(CLOCK_REALTIME, &start_t);
+  return start_t;
+}
+
+static inline double
+bench_end(const BenchmarkTime* start_t)
+{
+  BenchmarkTime end_t;
+  clock_gettime(CLOCK_REALTIME, &end_t);
+  return bench_elapsed_s(start_t, &end_t);
+}
+
+#endif /* BENCH_H */