mirror of
https://github.com/klzgrad/naiveproxy.git
synced 2024-11-28 00:06:09 +03:00
73 lines
2.3 KiB
C++
73 lines
2.3 KiB
C++
// Copyright 2015 The Chromium Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file.
|
|
|
|
#ifndef BASE_TRACE_EVENT_MALLOC_DUMP_PROVIDER_H_
|
|
#define BASE_TRACE_EVENT_MALLOC_DUMP_PROVIDER_H_
|
|
|
|
#include "base/macros.h"
|
|
#include "base/memory/singleton.h"
|
|
#include "base/synchronization/lock.h"
|
|
#include "base/threading/platform_thread.h"
|
|
#include "base/trace_event/memory_dump_provider.h"
|
|
#include "base/trace_event/sharded_allocation_register.h"
|
|
#include "build/build_config.h"
|
|
|
|
#if defined(OS_LINUX) || defined(OS_ANDROID) || defined(OS_WIN) || \
|
|
(defined(OS_MACOSX) && !defined(OS_IOS))
|
|
#define MALLOC_MEMORY_TRACING_SUPPORTED
|
|
#endif
|
|
|
|
namespace base {
|
|
namespace trace_event {
|
|
|
|
// Dump provider which collects process-wide memory stats.
|
|
class BASE_EXPORT MallocDumpProvider : public MemoryDumpProvider {
|
|
public:
|
|
// Name of the allocated_objects dump. Use this to declare suballocator dumps
|
|
// from other dump providers.
|
|
static const char kAllocatedObjects[];
|
|
|
|
static MallocDumpProvider* GetInstance();
|
|
|
|
// MemoryDumpProvider implementation.
|
|
bool OnMemoryDump(const MemoryDumpArgs& args,
|
|
ProcessMemoryDump* pmd) override;
|
|
|
|
void OnHeapProfilingEnabled(bool enabled) override;
|
|
|
|
// For heap profiling.
|
|
void InsertAllocation(void* address, size_t size);
|
|
void RemoveAllocation(void* address);
|
|
|
|
// Used by out-of-process heap-profiling. When malloc is profiled by an
|
|
// external process, that process will be responsible for emitting metrics on
|
|
// behalf of this one. Thus, MallocDumpProvider should not do anything.
|
|
void EnableMetrics();
|
|
void DisableMetrics();
|
|
|
|
private:
|
|
friend struct DefaultSingletonTraits<MallocDumpProvider>;
|
|
|
|
MallocDumpProvider();
|
|
~MallocDumpProvider() override;
|
|
|
|
// For heap profiling.
|
|
ShardedAllocationRegister allocation_register_;
|
|
|
|
// When in OnMemoryDump(), this contains the current thread ID.
|
|
// This is to prevent re-entrancy in the heap profiler when the heap dump
|
|
// generation is malloc/new-ing for its own bookkeeping data structures.
|
|
PlatformThreadId tid_dumping_heap_;
|
|
|
|
bool emit_metrics_on_memory_dump_ = true;
|
|
base::Lock emit_metrics_on_memory_dump_lock_;
|
|
|
|
DISALLOW_COPY_AND_ASSIGN(MallocDumpProvider);
|
|
};
|
|
|
|
} // namespace trace_event
|
|
} // namespace base
|
|
|
|
#endif // BASE_TRACE_EVENT_MALLOC_DUMP_PROVIDER_H_
|