cef/include/cef_task_manager.h

101 lines
4.0 KiB
C++

// Copyright (c) 2024 Marshall A. Greenblatt. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the name Chromium Embedded
// Framework nor the names of its contributors may be used to endorse
// or promote products derived from this software without specific prior
// written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// ---------------------------------------------------------------------------
//
// The contents of this file must follow a specific format in order to
// support the CEF translator tool. See the translator.README.txt file in the
// tools directory for more information.
//
#ifndef CEF_INCLUDE_CEF_TASK_MANAGER_H_
#define CEF_INCLUDE_CEF_TASK_MANAGER_H_
#pragma once
#include <vector>
#include "include/cef_base.h"
///
/// Class that facilitates managing the browser-related tasks.
/// The methods of this class may only be called on the UI thread.
///
/*--cef(source=library)--*/
class CefTaskManager : public virtual CefBaseRefCounted {
public:
typedef std::vector<int64_t> TaskIdList;
typedef cef_task_type_t TaskType;
///
/// Returns the global task manager object.
/// Returns nullptr if the method was called from the incorrect thread.
///
/*--cef()--*/
static CefRefPtr<CefTaskManager> GetTaskManager();
///
/// Returns the number of tasks currently tracked by the task manager.
/// Returns 0 if the method was called from the incorrect thread.
///
/*--cef()--*/
virtual size_t GetTasksCount() = 0;
///
/// Gets the list of task IDs currently tracked by the task manager. Tasks
/// that share the same process id will always be consecutive. The list will
/// be sorted in a way that reflects the process tree: the browser process
/// will be first, followed by the gpu process if it exists. Related processes
/// (e.g., a subframe process and its parent) will be kept together if
/// possible. Callers can expect this ordering to be stable when a process is
/// added or removed. The task IDs are unique within the application lifespan.
/// Returns false if the method was called from the incorrect thread.
///
/*--cef(count_func=task_ids:GetTasksCount)--*/
virtual bool GetTaskIdsList(TaskIdList& task_ids) = 0;
///
/// Gets information about the task with |task_id|.
/// Returns true if the information about the task was successfully
/// retrieved and false if the |task_id| is invalid or the method was called
/// from the incorrect thread.
///
/*--cef()--*/
virtual bool GetTaskInfo(int64_t task_id, CefTaskInfo& info) = 0;
///
/// Attempts to terminate a task with |task_id|.
/// Returns false if the |task_id| is invalid, the call is made from an
/// incorrect thread, or if the task cannot be terminated.
///
/*--cef()--*/
virtual bool KillTask(int64_t task_id) = 0;
};
#endif // CEF_INCLUDE_CEF_TASK_MANAGER_H_