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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: removed trash Created 7 years 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..da4221429a394b29f22e97d54b9cf76dfaa6980b
--- /dev/null
+++ b/Source/core/inspector/AsyncCallStackTracker.h
@@ -0,0 +1,99 @@
+/*
+ * 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/Deque.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);
+public:
+ class AsyncCallStack : public RefCounted<AsyncCallStack> {
+ public:
+ AsyncCallStack(const ScriptValue&);
+ ~AsyncCallStack();
+ const ScriptValue& callFrames() const { return m_callFrames; }
yurys 2013/12/04 15:25:52 Just return it by value.
aandrey 2013/12/04 15:57:26 why? :)
yurys 2013/12/05 11:37:48 Because it is a bad idea in general to return some
aandrey 2013/12/05 13:03:40 Done.
+ private:
+ ScriptValue m_callFrames;
+ };
+
+ typedef Deque<RefPtr<AsyncCallStack>, 4> AsyncCallStackVector;
+
+ class AsyncCallChain : public RefCounted<AsyncCallChain> {
+ public:
+ AsyncCallChain() { }
+ AsyncCallChain(const AsyncCallChain& t) : m_callStacks(t.m_callStacks) { }
+ const AsyncCallStackVector& callStacks() const { return m_callStacks; }
yurys 2013/12/04 15:25:52 ditto.
aandrey 2013/12/05 13:03:40 Done.
+ private:
+ friend class AsyncCallStackTracker;
+ AsyncCallStackVector m_callStacks;
+ };
+
+ AsyncCallStackTracker();
+
+ bool isEnabled() const { return m_maxAsyncCallStackDepth; }
+ void setAsyncCallStackDepth(int);
+ const AsyncCallChain* currentAsyncCallChain() const;
+
+ void didInstallTimer(int timerId, bool singleShot, ScriptValue callFrames);
yurys 2013/12/04 15:25:52 const ScriptValue&
aandrey 2013/12/04 15:57:26 Done.
+ void didRemoveTimer(int timerId);
+ void willFireTimer(int timerId);
+
+ void didRequestAnimationFrame(int callbackId, ScriptValue callFrames);
yurys 2013/12/04 15:25:52 const ScriptValue&
aandrey 2013/12/04 15:57:26 Done.
+ void didCancelAnimationFrame(int callbackId);
+ void willFireAnimationFrame(int callbackId);
+
+ void didFireAsyncCall();
+ void clear();
+
+private:
+ PassRefPtr<AsyncCallChain> createAsyncCallChain(ScriptValue& callFrames);
+ static void ensureMaxAsyncCallChainDepth(AsyncCallChain*, unsigned);
+ static bool validateCallFrames(ScriptValue& callFrames);
+
+ unsigned m_maxAsyncCallStackDepth;
+ RefPtr<AsyncCallChain> m_currentAsyncCallChain;
+ HashSet<int> m_intervalTimerIds;
+ HashMap<int, RefPtr<AsyncCallChain> > m_timerCallChains;
+ HashMap<int, RefPtr<AsyncCallChain> > m_animationFrameCallChains;
+};
+
+} // namespace WebCore
+
+#endif // !defined(AsyncCallStackTracker_h)

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