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// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_TASK_MANAGER_PROVIDERS_CHILD_PROCESS_TASK_PROVIDER_H_
#define CHROME_BROWSER_TASK_MANAGER_PROVIDERS_CHILD_PROCESS_TASK_PROVIDER_H_
#include <map>
#include <memory>
#include <vector>
#include "base/containers/flat_map.h"
#include "base/memory/raw_ptr.h"
#include "chrome/browser/task_manager/providers/task_provider.h"
#include "content/public/browser/browser_child_process_observer.h"
namespace content {
struct ChildProcessData;
}
namespace task_manager {
class ChildProcessTask;
// Defines a provider to provide the tasks that represent various types of child
// processes such as the GPU process or a plugin process ... etc.
class ChildProcessTaskProvider
: public TaskProvider,
public content::BrowserChildProcessObserver {
public:
ChildProcessTaskProvider();
ChildProcessTaskProvider(const ChildProcessTaskProvider&) = delete;
ChildProcessTaskProvider& operator=(const ChildProcessTaskProvider&) = delete;
~ChildProcessTaskProvider() override;
// task_manager::TaskProvider:
Task* GetTaskOfUrlRequest(int child_id, int route_id) override;
// content::BrowserChildProcessObserver:
void BrowserChildProcessLaunchedAndConnected(
const content::ChildProcessData& data) override;
void BrowserChildProcessHostDisconnected(
const content::ChildProcessData& data) override;
private:
friend class ChildProcessTaskTest;
// task_manager::TaskProvider:
void StartUpdating() override;
void StopUpdating() override;
// Creates a ChildProcessTask from the given |data| and notifies the observer
// of its addition.
void CreateTask(const content::ChildProcessData& data);
// Deletes a ChildProcessTask whose |handle| is provided after notifying the
// observer of its deletion.
void DeleteTask(base::ProcessHandle handle);
// A map to track ChildProcessTasks by their handles.
//
// This uses pids instead of handles because on windows (where pids and
// handles differ), there may be multiple different handles to the same
// process.
std::map<base::ProcessId, std::unique_ptr<ChildProcessTask>>
tasks_by_processid_;
// A map to track ChildProcessTask's by their child process unique ids.
base::flat_map<int, raw_ptr<ChildProcessTask, CtnExperimental>>
tasks_by_child_id_;
};
} // namespace task_manager
#endif // CHROME_BROWSER_TASK_MANAGER_PROVIDERS_CHILD_PROCESS_TASK_PROVIDER_H_
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