mojo/runner/task_runners.cc

   1 // Copyright 2013 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 "mojo/runner/task_runners.h"
   6
   7 #include "base/threading/sequenced_worker_pool.h"
   8
   9 namespace mojo {
  10 namespace runner {
  11
  12 namespace {
  13
  14 const size_t kMaxBlockingPoolThreads = 3;
  15
  16 scoped_ptr<base::Thread> CreateIOThread(const char* name) {
  17   scoped_ptr<base::Thread> thread(new base::Thread(name));
  18   base::Thread::Options options;
  19   options.message_loop_type = base::MessageLoop::TYPE_IO;
  20   thread->StartWithOptions(options);
  21   return thread.Pass();
  22 }
  23
  24 }  // namespace
  25
  26 TaskRunners::TaskRunners(
  27     const scoped_refptr<base::SingleThreadTaskRunner>& shell_runner)
  28     : shell_runner_(shell_runner),
  29       io_thread_(CreateIOThread("io_thread")),
  30       blocking_pool_(new base::SequencedWorkerPool(kMaxBlockingPoolThreads,
  31                                                    "blocking_pool")) {
  32 }
  33
  34 TaskRunners::~TaskRunners() {
  35   blocking_pool_->Shutdown();
  36 }
  37
  38 }  // namespace runner
  39 }  // namespace mojo