timer: add simple linux watchclock timer

1 files changed, 28 insertions, 0 deletions

diff --git a/test/timer.cc b/test/timer.cc
new file mode 100644
index 0000000..078c4bb
--- /dev/null
+++ b/test/timer.cc
@@ -0,0 +1,28 @@
+#include <timer.h>
+#include <unistd.h>
+#include <cstdio>
+
+int main() {
+  timer::timer T;
+
+  const auto show_time = [&T]() {
+    std::fprintf(stderr, "usec=%f msec=%f sec=%f\n", T.as_usec(), T.as_msec(),
+                 T.as_sec());
+  };
+
+  {
+    puts("Sleep 100ms");
+    timer::scoped_timer s{T};
+    usleep(100 * 1000);
+  }
+  show_time();
+
+  {
+    puts("Sleep 500ms");
+    timer::scoped_timer s{T};
+    usleep(500 * 1000);
+  }
+  show_time();
+
+  return 0;
+}