auto import from //depot/cupcake/@135843
diff --git a/include/utils/TimerProbe.h b/include/utils/TimerProbe.h
new file mode 100644
index 0000000..f2e32b2
--- /dev/null
+++ b/include/utils/TimerProbe.h
@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * 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.
+ */
+
+#ifndef ANDROID_TIMER_PROBE_H
+#define ANDROID_TIMER_PROBE_H
+
+#if 0 && defined(HAVE_POSIX_CLOCKS)
+#define ENABLE_TIMER_PROBE 1
+#else
+#define ENABLE_TIMER_PROBE 0
+#endif
+
+#if ENABLE_TIMER_PROBE
+
+#include <time.h>
+#include <sys/time.h>
+#include <utils/Vector.h>
+
+#define TIMER_PROBE(tag) \
+ static int _timer_slot_; \
+ android::TimerProbe probe(tag, &_timer_slot_)
+#define TIMER_PROBE_END() probe.end()
+#else
+#define TIMER_PROBE(tag)
+#define TIMER_PROBE_END()
+#endif
+
+#if ENABLE_TIMER_PROBE
+namespace android {
+
+class TimerProbe {
+public:
+ TimerProbe(const char tag[], int* slot);
+ void end();
+ ~TimerProbe();
+private:
+ struct Bucket {
+ int mStart, mReal, mProcess, mThread, mCount;
+ const char* mTag;
+ int* mSlotPtr;
+ int mIndent;
+ };
+ static Vector<Bucket> gBuckets;
+ static TimerProbe* gExecuteChain;
+ static int gIndent;
+ static timespec gRealBase;
+ TimerProbe* mNext;
+ static uint32_t ElapsedTime(const timespec& start, const timespec& end);
+ void print(const timespec& r, const timespec& p, const timespec& t) const;
+ timespec mRealStart, mPStart, mTStart;
+ const char* mTag;
+ int mIndent;
+ int mBucket;
+};
+
+}; // namespace android
+
+#endif
+#endif