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-rw-r--r--base/timer/timer.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/base/timer/timer.h b/base/timer/timer.h
index 4ef2f45..7e2c1d4 100644
--- a/base/timer/timer.h
+++ b/base/timer/timer.h
@@ -60,6 +60,7 @@
namespace base {
class BaseTimerTaskInternal;
+class SingleThreadTaskRunner;
//-----------------------------------------------------------------------------
// This class wraps MessageLoop::PostDelayedTask to manage delayed and repeating
@@ -87,6 +88,10 @@ class BASE_EXPORT Timer {
// Returns the current delay for this timer.
virtual TimeDelta GetCurrentDelay() const;
+ // Set the task runner on which the task should be scheduled. This method can
+ // only be called before any tasks have been scheduled.
+ virtual void SetTaskRunner(scoped_refptr<SingleThreadTaskRunner> task_runner);
+
// Start the timer to run at the given |delay| from now. If the timer is
// already running, it will be replaced to call the given |user_task|.
virtual void Start(const tracked_objects::Location& posted_from,
@@ -128,6 +133,11 @@ class BASE_EXPORT Timer {
// and desired_run_time_ are reset to Now() + delay.
void PostNewScheduledTask(TimeDelta delay);
+ // Returns the task runner on which the task should be scheduled. If the
+ // corresponding task_runner_ field is null, the task runner for the current
+ // thread is returned.
+ scoped_refptr<SingleThreadTaskRunner> GetTaskRunner();
+
// Disable scheduled_task_ and abandon it so that it no longer refers back to
// this object.
void AbandonScheduledTask();
@@ -145,6 +155,10 @@ class BASE_EXPORT Timer {
// RunScheduledTask() at scheduled_run_time_.
BaseTimerTaskInternal* scheduled_task_;
+ // The task runner on which the task should be scheduled. If it is null, the
+ // task runner for the current thread should be used.
+ scoped_refptr<SingleThreadTaskRunner> task_runner_;
+
// Location in user code.
tracked_objects::Location posted_from_;
// Delay requested by user.