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53 lines
1.8 KiB
C++
53 lines
1.8 KiB
C++
// Copyright 2015 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef BASE_TRACE_EVENT_MEMORY_DUMP_PROVIDER_H_
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#define BASE_TRACE_EVENT_MEMORY_DUMP_PROVIDER_H_
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#include "base/base_export.h"
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#include "base/macros.h"
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#include "base/process/process_handle.h"
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#include "base/trace_event/memory_dump_request_args.h"
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namespace base {
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namespace trace_event {
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class ProcessMemoryDump;
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// The contract interface that memory dump providers must implement.
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class BASE_EXPORT MemoryDumpProvider {
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public:
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// Optional arguments for MemoryDumpManager::RegisterDumpProvider().
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struct Options {
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Options() : dumps_on_single_thread_task_runner(false) {}
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// |dumps_on_single_thread_task_runner| is true if the dump provider runs on
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// a SingleThreadTaskRunner, which is usually the case. It is faster to run
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// all providers that run on the same thread together without thread hops.
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bool dumps_on_single_thread_task_runner;
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};
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virtual ~MemoryDumpProvider() = default;
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// Called by the MemoryDumpManager when generating memory dumps.
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// The |args| specify if the embedder should generate light/heavy dumps on
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// dump requests. The embedder should return true if the |pmd| was
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// successfully populated, false if something went wrong and the dump should
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// be considered invalid.
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// (Note, the MemoryDumpManager has a fail-safe logic which will disable the
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// MemoryDumpProvider for the entire trace session if it fails consistently).
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virtual bool OnMemoryDump(const MemoryDumpArgs& args,
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ProcessMemoryDump* pmd) = 0;
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protected:
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MemoryDumpProvider() = default;
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DISALLOW_COPY_AND_ASSIGN(MemoryDumpProvider);
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};
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} // namespace trace_event
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} // namespace base
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#endif // BASE_TRACE_EVENT_MEMORY_DUMP_PROVIDER_H_
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