Snap for 6664261 from 5125da301ca0a1680c26b5d9f574dc174fdfa98c to build-tools-releasebuild-tools-release

Change-Id: I1daf7def0d1e1db837365395914e3b9526bf8194

1 files changed, 43 insertions, 0 deletions

diff --git a/src/timeutil.cc b/src/timeutil.cc
new file mode 100644
index 0000000..0b43bf4
--- /dev/null
+++ b/src/timeutil.cc
@@ -0,0 +1,43 @@
+// Copyright 2015 Google Inc. All rights reserved
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// +build ignore
+
+#include "timeutil.h"
+
+#include <sys/time.h>
+#include <time.h>
+
+#include "log.h"
+
+double GetTime() {
+#if defined(__linux__)
+  struct timespec ts;
+  clock_gettime(CLOCK_REALTIME, &ts);
+  return ts.tv_sec + ts.tv_nsec * 0.001 * 0.001 * 0.001;
+#else
+  struct timeval tv;
+  if (gettimeofday(&tv, NULL) < 0)
+    PERROR("gettimeofday");
+  return tv.tv_sec + tv.tv_usec * 0.001 * 0.001;
+#endif
+}
+
+ScopedTimeReporter::ScopedTimeReporter(const char* name)
+    : name_(name), start_(GetTime()) {}
+
+ScopedTimeReporter::~ScopedTimeReporter() {
+  double elapsed = GetTime() - start_;
+  LOG_STAT("%s: %f", name_, elapsed);
+}