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| 1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 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 CONTENT_RENDERER_RASTER_WORKER_POOL_H_ | 5 #ifndef CONTENT_RENDERER_RASTER_WORKER_POOL_H_ |
| 6 #define CONTENT_RENDERER_RASTER_WORKER_POOL_H_ | 6 #define CONTENT_RENDERER_RASTER_WORKER_POOL_H_ |
| 7 | 7 |
| 8 #include "base/callback.h" | 8 #include "base/callback.h" |
| 9 #include "base/containers/hash_tables.h" | 9 #include "base/containers/hash_tables.h" |
| 10 #include "base/macros.h" | 10 #include "base/macros.h" |
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| 41 | 41 |
| 42 // Overridden from cc::TaskGraphRunner: | 42 // Overridden from cc::TaskGraphRunner: |
| 43 cc::NamespaceToken GetNamespaceToken() override; | 43 cc::NamespaceToken GetNamespaceToken() override; |
| 44 void ScheduleTasks(cc::NamespaceToken token, cc::TaskGraph* graph) override; | 44 void ScheduleTasks(cc::NamespaceToken token, cc::TaskGraph* graph) override; |
| 45 void WaitForTasksToFinishRunning(cc::NamespaceToken token) override; | 45 void WaitForTasksToFinishRunning(cc::NamespaceToken token) override; |
| 46 void CollectCompletedTasks(cc::NamespaceToken token, | 46 void CollectCompletedTasks(cc::NamespaceToken token, |
| 47 cc::Task::Vector* completed_tasks) override; | 47 cc::Task::Vector* completed_tasks) override; |
| 48 | 48 |
| 49 // Runs a task from one of the provided categories. Categories listed first | 49 // Runs a task from one of the provided categories. Categories listed first |
| 50 // have higher priority. | 50 // have higher priority. |
| 51 void Run(const std::vector<cc::TaskCategory>& categories, | 51 void Run(base::TestSimpleThread* runner, |
| 52 const std::vector<cc::TaskCategory>& categories, |
| 52 base::ConditionVariable* has_ready_to_run_tasks_cv); | 53 base::ConditionVariable* has_ready_to_run_tasks_cv); |
| 53 | 54 |
| 54 void FlushForTesting(); | 55 void FlushForTesting(); |
| 55 | 56 |
| 56 // Spawn |num_threads| number of threads and start running work on the | 57 // Spawn |num_threads| number of threads and start running work on the |
| 57 // worker threads. | 58 // worker threads. |
| 58 void Start(int num_threads); | 59 void Start(int num_threads); |
| 59 | 60 |
| 60 // Finish running all the posted tasks (and nested task posted by those tasks) | 61 // Finish running all the posted tasks (and nested task posted by those tasks) |
| 61 // of all the associated task runners. | 62 // of all the associated task runners. |
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| 94 DISALLOW_COPY_AND_ASSIGN(ClosureTask); | 95 DISALLOW_COPY_AND_ASSIGN(ClosureTask); |
| 95 }; | 96 }; |
| 96 | 97 |
| 97 void ScheduleTasksWithLockAcquired(cc::NamespaceToken token, | 98 void ScheduleTasksWithLockAcquired(cc::NamespaceToken token, |
| 98 cc::TaskGraph* graph); | 99 cc::TaskGraph* graph); |
| 99 void CollectCompletedTasksWithLockAcquired(cc::NamespaceToken token, | 100 void CollectCompletedTasksWithLockAcquired(cc::NamespaceToken token, |
| 100 cc::Task::Vector* completed_tasks); | 101 cc::Task::Vector* completed_tasks); |
| 101 | 102 |
| 102 // Runs a task from one of the provided categories. Categories listed first | 103 // Runs a task from one of the provided categories. Categories listed first |
| 103 // have higher priority. Returns false if there were no tasks to run. | 104 // have higher priority. Returns false if there were no tasks to run. |
| 104 bool RunTaskWithLockAcquired(const std::vector<cc::TaskCategory>& categories); | 105 bool RunTaskWithLockAcquired(base::TestSimpleThread* runner, |
| 106 const std::vector<cc::TaskCategory>& categories); |
| 105 | 107 |
| 106 // Run next task for the given category. Caller must acquire |lock_| prior to | 108 // Run next task for the given category. Caller must acquire |lock_| prior to |
| 107 // calling this function and make sure at least one task is ready to run. | 109 // calling this function and make sure at least one task is ready to run. |
| 108 void RunTaskInCategoryWithLockAcquired(cc::TaskCategory category); | 110 void RunTaskInCategoryWithLockAcquired(base::TestSimpleThread* runner, |
| 111 cc::TaskCategory category); |
| 109 | 112 |
| 110 // Helper function which signals worker threads if tasks are ready to run. | 113 // Helper function which signals worker threads if tasks are ready to run. |
| 111 void SignalHasReadyToRunTasksWithLockAcquired(); | 114 void SignalHasReadyToRunTasksWithLockAcquired(); |
| 112 | 115 |
| 113 // Determines if we should run a new task for the given category. This factors | 116 // Determines if we should run a new task for the given category. This factors |
| 114 // in whether a task is available and whether the count of running tasks is | 117 // in whether a task is available and whether the count of running tasks is |
| 115 // low enough to start a new one. | 118 // low enough to start a new one. |
| 116 bool ShouldRunTaskForCategoryWithLockAcquired(cc::TaskCategory category); | 119 bool ShouldRunTaskForCategoryWithLockAcquired(cc::TaskCategory category); |
| 117 | 120 |
| 118 // The actual threads where work is done. | 121 // The actual threads where work is done. |
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| 138 // Condition variable that is waited on by origin threads until a namespace | 141 // Condition variable that is waited on by origin threads until a namespace |
| 139 // has finished running all associated tasks. | 142 // has finished running all associated tasks. |
| 140 base::ConditionVariable has_namespaces_with_finished_running_tasks_cv_; | 143 base::ConditionVariable has_namespaces_with_finished_running_tasks_cv_; |
| 141 // Set during shutdown. Tells Run() to return when no more tasks are pending. | 144 // Set during shutdown. Tells Run() to return when no more tasks are pending. |
| 142 bool shutdown_; | 145 bool shutdown_; |
| 143 }; | 146 }; |
| 144 | 147 |
| 145 } // namespace content | 148 } // namespace content |
| 146 | 149 |
| 147 #endif // CONTENT_RENDERER_RASTER_WORKER_POOL_H_ | 150 #endif // CONTENT_RENDERER_RASTER_WORKER_POOL_H_ |
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