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Unified Diff: Source/core/inspector/AsyncCallStackTracker.h

Issue 74063002: DevTools: Support asynchronous call stacks on backend. (Closed) Base URL: svn://svn.chromium.org/blink/trunk
Patch Set: addressed Created 7 years, 1 month ago
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Index: Source/core/inspector/AsyncCallStackTracker.h
diff --git a/Source/core/inspector/AsyncCallStackTracker.h b/Source/core/inspector/AsyncCallStackTracker.h
new file mode 100644
index 0000000000000000000000000000000000000000..c00c1b1e7bb71dda77581fc9231cd95335f85016
--- /dev/null
+++ b/Source/core/inspector/AsyncCallStackTracker.h
@@ -0,0 +1,106 @@
+/*
+ * Copyright (C) 2013 Google Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef AsyncCallStackTracker_h
+#define AsyncCallStackTracker_h
+
+#include "bindings/v8/ScriptValue.h"
+#include "wtf/FastAllocBase.h"
+#include "wtf/HashMap.h"
+#include "wtf/HashSet.h"
+#include "wtf/Noncopyable.h"
+#include "wtf/PassRefPtr.h"
+#include "wtf/RefPtr.h"
+
+namespace WebCore {
+
+class AsyncCallStackTracker {
+ WTF_MAKE_NONCOPYABLE(AsyncCallStackTracker); WTF_MAKE_FAST_ALLOCATED;
+private:
+ class AsyncCallStack;
+
+public:
+ class AsyncCallStackIterator {
+ public:
+ bool hasNext() const;
+ ScriptValue next();
+
+ private:
+ friend class AsyncCallStackTracker;
+ AsyncCallStackIterator(AsyncCallStack* head, AsyncCallStack* tail);
+ RefPtr<AsyncCallStack> m_head;
+ RefPtr<AsyncCallStack> m_tail;
+ };
+
+ AsyncCallStackTracker();
+
+ inline bool isEnabled() const { return m_maxAsyncCallStackDepth; }
+ void setAsyncCallStackDepth(int);
+ AsyncCallStackIterator currentAsyncCallStack();
+
+ void didInstallTimer(int timerId, bool singleShot);
+ void didRemoveTimer(int timerId);
+ void willFireTimer(int timerId);
+
+ void didRequestAnimationFrame(int callbackId);
+ void didCancelAnimationFrame(int callbackId);
+ void willFireAnimationFrame(int callbackId);
+
+ void didAsyncCall();
+ void didRequestAsyncCallFrames(ScriptValue callFrames);
+
+ void clear();
+
+private:
+ class AsyncCallStack : public RefCounted<AsyncCallStack> {
+ public:
+ explicit AsyncCallStack(AsyncCallStack* next);
+
+ ScriptValue m_callFrames;
+ RefPtr<AsyncCallStack> m_next;
+ int m_pathCount;
+ };
+
+ AsyncCallStack* requestAsyncCallStack();
+ void setCurrentAsyncCallStack(PassRefPtr<AsyncCallStack>, int delta);
+ void modifyPathCount(PassRefPtr<AsyncCallStack>, int delta);
+
+ int m_maxAsyncCallStackDepth;
+ int m_currentAsyncCallStackDelta;
+ RefPtr<AsyncCallStack> m_currentAsyncCallStack;
+ RefPtr<AsyncCallStack> m_requestedAsyncCallStack;
+ HashSet<int> m_intervalTimerIds;
+ HashMap<int, RefPtr<AsyncCallStack> > m_timerCallStacks;
+ HashMap<int, RefPtr<AsyncCallStack> > m_animationFrameCallStacks;
+};
+
+} // namespace WebCore
+
+#endif // !defined(AsyncCallStackTracker_h)

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