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1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef COMPONENTS_TASK_SCHEDULER_UTIL_COMMON_VARIATIONS_UTIL_H_ | 5 #ifndef COMPONENTS_TASK_SCHEDULER_UTIL_COMMON_VARIATIONS_UTIL_H_ |
6 #define COMPONENTS_TASK_SCHEDULER_UTIL_COMMON_VARIATIONS_UTIL_H_ | 6 #define COMPONENTS_TASK_SCHEDULER_UTIL_COMMON_VARIATIONS_UTIL_H_ |
7 | 7 |
8 #include <map> | 8 #include <map> |
9 #include <memory> | |
9 #include <string> | 10 #include <string> |
10 #include <vector> | |
11 | 11 |
12 #include "build/build_config.h" | |
13 #include "base/strings/string_piece.h" | 12 #include "base/strings/string_piece.h" |
14 #include "base/task_scheduler/scheduler_worker_params.h" | 13 #include "base/task_scheduler/scheduler_worker_params.h" |
15 #include "base/task_scheduler/scheduler_worker_pool_params.h" | 14 #include "base/task_scheduler/task_scheduler.h" |
16 #include "base/threading/platform_thread.h" | 15 #include "build/build_config.h" |
17 | 16 |
18 namespace base { | 17 namespace base { |
19 class CommandLine; | 18 class CommandLine; |
20 } | 19 } |
21 | 20 |
22 namespace task_scheduler_util { | 21 namespace task_scheduler_util { |
23 | 22 |
24 class SchedulerImmutableWorkerPoolParams { | 23 // Builds a TaskScheduler::InitParams from pool descriptors in |variations| that |
robliao
2017/04/03 19:13:12
Nit: in |variations| -> from |variations_params|
fdoray
2017/04/03 19:21:45
Done.
| |
25 public: | 24 // are prefixed with |variation_param_prefix|. |
26 SchedulerImmutableWorkerPoolParams( | 25 // |foreground_blocking_backward_compatibility| controls backward compatibility |
27 const char* name, | 26 // in the foreground blocking pool. Returns nullptr on failure. |
28 base::ThreadPriority priority_hint, | 27 std::unique_ptr<base::TaskScheduler::InitParams> GetTaskSchedulerInitParams( |
29 base::SchedulerBackwardCompatibility backward_compatibility = | 28 base::StringPiece variation_param_prefix, |
30 base::SchedulerBackwardCompatibility::DISABLED); | 29 const std::map<std::string, std::string>& variation_params, |
31 | 30 base::SchedulerBackwardCompatibility |
32 const char* name() const { return name_; } | 31 foreground_blocking_backward_compatibility = |
33 base::ThreadPriority priority_hint() const { return priority_hint_; } | 32 base::SchedulerBackwardCompatibility::DISABLED); |
34 base::SchedulerBackwardCompatibility backward_compatibility() const { | |
35 return backward_compatibility_; | |
36 } | |
37 | |
38 private: | |
39 const char* name_; | |
40 base::ThreadPriority priority_hint_; | |
41 base::SchedulerBackwardCompatibility backward_compatibility_; | |
42 }; | |
43 | |
44 // Returns a SchedulerWorkerPoolParams vector to initialize pools specified in | |
45 // |constant_worker_pool_params_vector|. SchedulerWorkerPoolParams members | |
46 // without a counterpart in SchedulerImmutableWorkerPoolParams are initialized | |
47 // based of |variation_params|. Returns an empty vector on failure. | |
48 std::vector<base::SchedulerWorkerPoolParams> GetWorkerPoolParams( | |
49 const std::vector<SchedulerImmutableWorkerPoolParams>& | |
50 constant_worker_pool_params_vector, | |
51 const std::map<std::string, std::string>& variation_params); | |
52 | 33 |
53 #if !defined(OS_IOS) | 34 #if !defined(OS_IOS) |
54 // Serializes variation params from the BrowserScheduler field trial whose key | 35 // Serializes variation params from the BrowserScheduler field trial whose key |
55 // start with |prefix| to the --task-scheduler-variation-params switch of | 36 // start with |prefix| to the --task-scheduler-variation-params switch of |
56 // |command_line|. | 37 // |command_line|. |
57 void AddVariationParamsToCommandLine(base::StringPiece key_prefix, | 38 void AddVariationParamsToCommandLine(base::StringPiece key_prefix, |
58 base::CommandLine* command_line); | 39 base::CommandLine* command_line); |
59 | 40 |
60 // Returns a map of key-value pairs deserialized from the | 41 // Returns a map of key-value pairs deserialized from the |
61 // --task-scheduler-variation-params switch of |command_line|. | 42 // --task-scheduler-variation-params switch of |command_line|. |
62 std::map<std::string, std::string> GetVariationParamsFromCommandLine( | 43 std::map<std::string, std::string> GetVariationParamsFromCommandLine( |
63 const base::CommandLine& command_line); | 44 const base::CommandLine& command_line); |
64 #endif // !defined(OS_IOS) | 45 #endif // !defined(OS_IOS) |
65 | 46 |
66 } // namespace task_scheduler_util | 47 } // namespace task_scheduler_util |
67 | 48 |
68 #endif // COMPONENTS_TASK_SCHEDULER_UTIL_COMMON_VARIATIONS_UTIL_H_ | 49 #endif // COMPONENTS_TASK_SCHEDULER_UTIL_COMMON_VARIATIONS_UTIL_H_ |
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