Index: cc/raster/dependency_task.h |
diff --git a/cc/raster/dependency_task.h b/cc/raster/dependency_task.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..698bcf33f6d6253db1a3ecb6c1e965cc28c287df |
--- /dev/null |
+++ b/cc/raster/dependency_task.h |
@@ -0,0 +1,86 @@ |
+// Copyright 2016 The Chromium Authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+#ifndef CC_RASTER_DEPENDENCY_TASK_H_ |
+#define CC_RASTER_DEPENDENCY_TASK_H_ |
+ |
+#include <stddef.h> |
+#include <stdint.h> |
+ |
+#include <algorithm> |
+#include <map> |
ericrk
2016/04/01 21:34:31
nit: map/algorithm are not used
|
+#include <vector> |
+ |
+#include "base/logging.h" |
ericrk
2016/04/01 21:34:30
nit: logging is not used.
|
+#include "base/memory/ref_counted.h" |
+#include "base/memory/scoped_ptr.h" |
+#include "cc/base/cc_export.h" |
+ |
+namespace cc { |
+ |
+class Resource; |
+class RasterBuffer; |
+ |
+class CC_EXPORT DependencyTaskClient { |
ericrk
2016/04/01 21:34:30
This does a lot of things other than dependencies,
prashant.n
2016/04/01 23:48:05
I called this as DependencyTask to differetiate fr
|
+ public: |
+ virtual scoped_ptr<RasterBuffer> AcquireBufferForRaster( |
prashant.n
2016/04/01 14:23:39
These methods will be made generic in subsequent p
ericrk
2016/04/01 21:34:30
While I agree that dependencies are a generic conc
prashant.n
2016/04/01 23:48:05
Yes, I agree with you. Scheduling and Completing t
|
+ const Resource* resource, |
+ uint64_t resource_content_id, |
+ uint64_t previous_content_id) = 0; |
+ virtual void ReleaseBufferForRaster(scoped_ptr<RasterBuffer> buffer) = 0; |
+ |
+ protected: |
+ virtual ~DependencyTaskClient() {} |
+}; |
+ |
+// A task with or without dependencies which can be run by a TaskGraphRunner. To |
+// run a DependencyTask, it should be inserted into a TaskGraph, which can then |
+// be scheduled on the TaskGraphRunner. |
+class CC_EXPORT DependencyTask |
+ : public base::RefCountedThreadSafe<DependencyTask> { |
+ public: |
+ typedef std::vector<scoped_refptr<DependencyTask>> Vector; |
+ |
+ const DependencyTask::Vector& dependencies() const { return dependencies_; } |
+ |
+ // Subclasses should implement these methods. RunOnWorkerThread may be called |
+ // on any thread (origin or worker), ScheduleOnOriginThread and |
+ // CompleteOnOriginThread must be called on origin thread. The subclasses are |
+ // responsible for locking and thread safety. |
+ virtual void RunOnWorkerThread() = 0; |
+ virtual void ScheduleOnOriginThread(DependencyTaskClient* client) = 0; |
+ virtual void CompleteOnOriginThread(DependencyTaskClient* client) = 0; |
+ |
+ void WillRun(); |
+ void DidRun(); |
+ bool HasFinishedRunning() const; |
+ |
+ void WillSchedule(); |
+ void DidSchedule(); |
+ bool HasBeenScheduled() const; |
+ |
+ void WillComplete(); |
+ void DidComplete(); |
+ bool HasCompleted() const; |
+ |
+ protected: |
+ friend class base::RefCountedThreadSafe<DependencyTask>; |
+ |
+ // For creating task without dependencies. |
+ DependencyTask(); |
+ // For creating task with dependencies. |
+ explicit DependencyTask(DependencyTask::Vector* dependencies); |
ericrk
2016/04/01 21:34:30
maybe take by value to allow us to std::move the v
|
+ virtual ~DependencyTask(); |
+ |
+ bool will_run_; |
+ bool did_run_; |
+ bool did_schedule_; |
+ bool did_complete_; |
+ |
+ DependencyTask::Vector dependencies_; |
+}; |
+ |
+} // namespace cc |
+ |
+#endif // CC_RASTER_DEPENDENCY_TASK_H_ |