cc/test/ordered_simple_task_runner.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "cc/test/ordered_simple_task_runner.h"
   6
   7 #include <algorithm>
   8 #include <deque>
   9
  10 #include "base/logging.h"
  11
  12 namespace {
  13
  14 bool TestPendingTaskComparator(const base::TestPendingTask& lhs,
  15                                const base::TestPendingTask& rhs) {
  16   return lhs.ShouldRunBefore(rhs);
  17 }
  18
  19 }
  20
  21 namespace cc {
  22
  23 OrderedSimpleTaskRunner::OrderedSimpleTaskRunner() {}
  24
  25 OrderedSimpleTaskRunner::~OrderedSimpleTaskRunner() {}
  26
  27 void OrderedSimpleTaskRunner::RunPendingTasks() {
  28   DCHECK(thread_checker_.CalledOnValidThread());
  29   // Swap with a local variable to avoid re-entrancy problems.
  30   std::deque<base::TestPendingTask> tasks_to_run;
  31   tasks_to_run.swap(pending_tasks_);
  32   std::stable_sort(tasks_to_run.begin(),
  33                    tasks_to_run.end(),
  34                    TestPendingTaskComparator);
  35   for (std::deque<base::TestPendingTask>::iterator it = tasks_to_run.begin();
  36        it != tasks_to_run.end(); ++it) {
  37     it->task.Run();
  38   }
  39 }
  40
  41 }  // namespace cc