1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
|
// Copyright 2025 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_PERFORMANCE_MANAGER_MECHANISMS_TERMINATION_TARGET_SETTER_H_
#define CHROME_BROWSER_PERFORMANCE_MANAGER_MECHANISMS_TERMINATION_TARGET_SETTER_H_
namespace performance_manager {
class ProcessNode;
// Mechanism to set a process to terminate on commit failure.
//
// Note: This class is built on all platforms to facilitate development and
// testing, but it's only instantiated in production on Windows, as the
// "commit failure" concept is Windows-specific.
class TerminationTargetSetter {
public:
TerminationTargetSetter() = default;
virtual ~TerminationTargetSetter() = default;
TerminationTargetSetter(const TerminationTargetSetter& other) = delete;
TerminationTargetSetter& operator=(const TerminationTargetSetter&) = delete;
// Sets `process_node` as the process to terminate when a commit failure
// occurs within the calling process. A call overrides the effect of the
// previous call. `process_node` can be nullptr to indicate that no process
// should be terminated on commit failure. The caller must detect when the
// `process_node`'s underlying process terminates (for any reason) and call
// this again with a new termination target (or nullptr) - otherwise the
// implementation may hold onto the terminated process' handle which will
// undesirably keep the process object alive, see
// https://learn.microsoft.com/en-us/windows-hardware/drivers/kernel/eprocess#eprocess.
// `ProcessNodeObserver::OnProcessLifetimeChange` may be used to detect this.
// Virtual to allow overriding in tests.
virtual void SetTerminationTarget(const ProcessNode* process_node);
};
} // namespace performance_manager
#endif // CHROME_BROWSER_PERFORMANCE_MANAGER_MECHANISMS_TERMINATION_TARGET_SETTER_H_
|
