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author | rmcilroy <rmcilroy@chromium.org> | 2015-04-16 06:23:24 -0700 |
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committer | Commit bot <commit-bot@chromium.org> | 2015-04-16 13:23:40 +0000 |
commit | d6fe37652cf1a317e050beb8ffec5209a4143473 (patch) | |
tree | 8a94a412c3a32e3c7571149424402cb3ac81fd72 /content/renderer/scheduler | |
parent | bb07bff2ba2c7440438add7b02d1155597289523 (diff) | |
download | chromium_src-d6fe37652cf1a317e050beb8ffec5209a4143473.zip chromium_src-d6fe37652cf1a317e050beb8ffec5209a4143473.tar.gz chromium_src-d6fe37652cf1a317e050beb8ffec5209a4143473.tar.bz2 |
Introduce ChildScheduler as common base interface for WorkerScheduler and RendererScheduler.
BUG=463143
Review URL: https://codereview.chromium.org/1089833002
Cr-Commit-Position: refs/heads/master@{#325433}
Diffstat (limited to 'content/renderer/scheduler')
-rw-r--r-- | content/renderer/scheduler/renderer_scheduler.h | 43 |
1 files changed, 3 insertions, 40 deletions
diff --git a/content/renderer/scheduler/renderer_scheduler.h b/content/renderer/scheduler/renderer_scheduler.h index da21d81..7d08f31 100644 --- a/content/renderer/scheduler/renderer_scheduler.h +++ b/content/renderer/scheduler/renderer_scheduler.h @@ -6,6 +6,7 @@ #define CONTENT_RENDERER_SCHEDULER_RENDERER_SCHEDULER_H_ #include "base/message_loop/message_loop.h" +#include "content/child/scheduler/child_scheduler.h" #include "content/child/scheduler/single_thread_idle_task_runner.h" #include "content/common/content_export.h" #include "third_party/WebKit/public/web/WebInputEvent.h" @@ -16,23 +17,15 @@ struct BeginFrameArgs; namespace content { -class CONTENT_EXPORT RendererScheduler { +class CONTENT_EXPORT RendererScheduler : public ChildScheduler { public: - virtual ~RendererScheduler(); + ~RendererScheduler() override; static scoped_ptr<RendererScheduler> Create(); - // Returns the default task runner. - virtual scoped_refptr<base::SingleThreadTaskRunner> DefaultTaskRunner() = 0; - // Returns the compositor task runner. virtual scoped_refptr<base::SingleThreadTaskRunner> CompositorTaskRunner() = 0; - // Returns the idle task runner. Tasks posted to this runner may be reordered - // relative to other task types and may be starved for an arbitrarily long - // time if no idle time is available. - virtual scoped_refptr<SingleThreadIdleTaskRunner> IdleTaskRunner() = 0; - // Returns the loading task runner. This queue is intended for tasks related // to resource dispatch, foreground HTML parsing, etc... virtual scoped_refptr<base::SingleThreadTaskRunner> LoadingTaskRunner() = 0; @@ -78,36 +71,6 @@ class CONTENT_EXPORT RendererScheduler { // Must be called from the main thread. virtual bool IsHighPriorityWorkAnticipated() = 0; - // Returns true if there is high priority work pending on the main thread - // and the caller should yield to let the scheduler service that work. Note - // that this is a stricter condition than |IsHighPriorityWorkAnticipated|, - // restricted to the case where real work is pending. - // Must be called from the main thread. - virtual bool ShouldYieldForHighPriorityWork() = 0; - - // Returns true if a currently running idle task could exceed its deadline - // without impacting user experience too much. This should only be used if - // there is a task which cannot be pre-empted and is likely to take longer - // than the largest expected idle task deadline. It should NOT be polled to - // check whether more work can be performed on the current idle task after - // its deadline has expired - post a new idle task for the continuation of the - // work in this case. - // Must be called from the main thread. - virtual bool CanExceedIdleDeadlineIfRequired() const = 0; - - // Adds or removes a task observer from the scheduler. The observer will be - // notified before and after every executed task. These functions can only be - // called on the main thread. - virtual void AddTaskObserver( - base::MessageLoop::TaskObserver* task_observer) = 0; - virtual void RemoveTaskObserver( - base::MessageLoop::TaskObserver* task_observer) = 0; - - // Shuts down the scheduler by dropping any remaining pending work in the work - // queues. After this call any work posted to the task runners will be - // silently dropped. - virtual void Shutdown() = 0; - // Suspends the timer queue and increments the timer queue suspension count. // May only be called from the main thread. virtual void SuspendTimerQueue() = 0; |