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// Copyright 2009-2010 the V8 project authors. 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 V8_HEAP_PROFILER_H_
#define V8_HEAP_PROFILER_H_
#include "isolate.h"
namespace v8 {
namespace internal {
class HeapSnapshot;
class HeapSnapshotsCollection;
#define HEAP_PROFILE(heap, call) \
do { \
v8::internal::HeapProfiler* profiler = heap->isolate()->heap_profiler(); \
if (profiler != NULL && profiler->is_profiling()) { \
profiler->call; \
} \
} while (false)
// The HeapProfiler writes data to the log files, which can be postprocessed
// to generate .hp files for use by the GHC/Valgrind tool hp2ps.
class HeapProfiler {
public:
static void Setup();
static void TearDown();
static HeapSnapshot* TakeSnapshot(const char* name,
int type,
v8::ActivityControl* control);
static HeapSnapshot* TakeSnapshot(String* name,
int type,
v8::ActivityControl* control);
static int GetSnapshotsCount();
static HeapSnapshot* GetSnapshot(int index);
static HeapSnapshot* FindSnapshot(unsigned uid);
static void DeleteAllSnapshots();
void ObjectMoveEvent(Address from, Address to);
void DefineWrapperClass(
uint16_t class_id, v8::HeapProfiler::WrapperInfoCallback callback);
v8::RetainedObjectInfo* ExecuteWrapperClassCallback(uint16_t class_id,
Object** wrapper);
INLINE(bool is_profiling()) {
return snapshots_->is_tracking_objects();
}
private:
HeapProfiler();
~HeapProfiler();
HeapSnapshot* TakeSnapshotImpl(const char* name,
int type,
v8::ActivityControl* control);
HeapSnapshot* TakeSnapshotImpl(String* name,
int type,
v8::ActivityControl* control);
void ResetSnapshots();
HeapSnapshotsCollection* snapshots_;
unsigned next_snapshot_uid_;
List<v8::HeapProfiler::WrapperInfoCallback> wrapper_callbacks_;
};
} } // namespace v8::internal
#endif // V8_HEAP_PROFILER_H_
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