mirror of
https://github.com/klzgrad/naiveproxy.git
synced 2024-11-24 06:16:30 +03:00
75 lines
2.3 KiB
C++
75 lines
2.3 KiB
C++
// 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 BASE_TASK_SCHEDULER_TASK_TRACKER_POSIX_H_
|
|
#define BASE_TASK_SCHEDULER_TASK_TRACKER_POSIX_H_
|
|
|
|
#include <memory>
|
|
|
|
#include "base/base_export.h"
|
|
#include "base/logging.h"
|
|
#include "base/macros.h"
|
|
#include "base/task_scheduler/task_tracker.h"
|
|
#include "base/threading/platform_thread.h"
|
|
|
|
namespace base {
|
|
|
|
class MessageLoopForIO;
|
|
|
|
namespace internal {
|
|
|
|
struct Task;
|
|
|
|
// A TaskTracker that instantiates a FileDescriptorWatcher in the scope in which
|
|
// a task runs. Used on all POSIX platforms except NaCl SFI.
|
|
// set_watch_file_descriptor_message_loop() must be called before the
|
|
// TaskTracker can run tasks.
|
|
class BASE_EXPORT TaskTrackerPosix : public TaskTracker {
|
|
public:
|
|
TaskTrackerPosix(StringPiece name);
|
|
~TaskTrackerPosix() override;
|
|
|
|
// Sets the MessageLoopForIO with which to setup FileDescriptorWatcher in the
|
|
// scope in which tasks run. Must be called before starting to run tasks.
|
|
// External synchronization is required between a call to this and a call to
|
|
// RunTask().
|
|
void set_watch_file_descriptor_message_loop(
|
|
MessageLoopForIO* watch_file_descriptor_message_loop) {
|
|
watch_file_descriptor_message_loop_ = watch_file_descriptor_message_loop;
|
|
}
|
|
|
|
#if DCHECK_IS_ON()
|
|
// TODO(robliao): http://crbug.com/698140. This addresses service thread tasks
|
|
// that could run after the task scheduler has shut down. Anything from the
|
|
// service thread is exempted from the task scheduler shutdown DCHECKs.
|
|
void set_service_thread_handle(
|
|
const PlatformThreadHandle& service_thread_handle) {
|
|
DCHECK(!service_thread_handle.is_null());
|
|
service_thread_handle_ = service_thread_handle;
|
|
}
|
|
#endif
|
|
|
|
protected:
|
|
// TaskTracker:
|
|
void RunOrSkipTask(Task task, Sequence* sequence, bool can_run_task) override;
|
|
|
|
private:
|
|
#if DCHECK_IS_ON()
|
|
bool IsPostingBlockShutdownTaskAfterShutdownAllowed() override;
|
|
#endif
|
|
|
|
MessageLoopForIO* watch_file_descriptor_message_loop_ = nullptr;
|
|
|
|
#if DCHECK_IS_ON()
|
|
PlatformThreadHandle service_thread_handle_;
|
|
#endif
|
|
|
|
DISALLOW_COPY_AND_ASSIGN(TaskTrackerPosix);
|
|
};
|
|
|
|
} // namespace internal
|
|
} // namespace base
|
|
|
|
#endif // BASE_TASK_SCHEDULER_TASK_TRACKER_POSIX_H_
|