7b45ab9501
This is not only inherently slow, but it also forces the caller to enter an Isolate before. Both is bad, so we have to do some heap plumbing. BUG=v8:2531 Review URL: https://codereview.chromium.org/12217106 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13638 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
114 lines
4.2 KiB
C++
114 lines
4.2 KiB
C++
// Copyright 2009-2010 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#ifndef V8_HEAP_PROFILER_H_
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#define V8_HEAP_PROFILER_H_
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#include "isolate.h"
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namespace v8 {
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namespace internal {
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class HeapSnapshot;
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class HeapSnapshotsCollection;
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#define HEAP_PROFILE(heap, call) \
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do { \
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v8::internal::HeapProfiler* profiler = heap->isolate()->heap_profiler(); \
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if (profiler != NULL && profiler->is_profiling()) { \
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profiler->call; \
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} \
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} while (false)
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class HeapProfiler {
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public:
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static void SetUp();
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static void TearDown();
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static size_t GetMemorySizeUsedByProfiler();
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static HeapSnapshot* TakeSnapshot(
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const char* name,
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int type,
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v8::ActivityControl* control,
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v8::HeapProfiler::ObjectNameResolver* resolver);
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static HeapSnapshot* TakeSnapshot(
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String* name,
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int type,
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v8::ActivityControl* control,
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v8::HeapProfiler::ObjectNameResolver* resolver);
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static void StartHeapObjectsTracking();
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static void StopHeapObjectsTracking();
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static SnapshotObjectId PushHeapObjectsStats(OutputStream* stream);
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static int GetSnapshotsCount();
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static HeapSnapshot* GetSnapshot(int index);
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static HeapSnapshot* FindSnapshot(unsigned uid);
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static SnapshotObjectId GetSnapshotObjectId(Handle<Object> obj);
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static void DeleteAllSnapshots();
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void ObjectMoveEvent(Address from, Address to);
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void DefineWrapperClass(
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uint16_t class_id, v8::HeapProfiler::WrapperInfoCallback callback);
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v8::RetainedObjectInfo* ExecuteWrapperClassCallback(uint16_t class_id,
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Object** wrapper);
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INLINE(bool is_profiling()) {
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return snapshots_->is_tracking_objects();
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}
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private:
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explicit HeapProfiler(Heap* heap);
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~HeapProfiler();
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HeapSnapshot* TakeSnapshotImpl(
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const char* name,
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int type,
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v8::ActivityControl* control,
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v8::HeapProfiler::ObjectNameResolver* resolver);
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HeapSnapshot* TakeSnapshotImpl(
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String* name,
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int type,
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v8::ActivityControl* control,
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v8::HeapProfiler::ObjectNameResolver* resolver);
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void ResetSnapshots();
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void StartHeapObjectsTrackingImpl();
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void StopHeapObjectsTrackingImpl();
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SnapshotObjectId PushHeapObjectsStatsImpl(OutputStream* stream);
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Heap* heap() const { return snapshots_->heap(); }
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HeapSnapshotsCollection* snapshots_;
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unsigned next_snapshot_uid_;
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List<v8::HeapProfiler::WrapperInfoCallback> wrapper_callbacks_;
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};
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} } // namespace v8::internal
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#endif // V8_HEAP_PROFILER_H_
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