1 files changed, 72 insertions, 0 deletions
diff --git a/include/utils/TimerProbe.h b/include/utils/TimerProbe.h
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+++ 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