/src/libreoffice/vcl/inc/schedulerimpl.hxx
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1 | | /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ |
2 | | /* |
3 | | * This file is part of the LibreOffice project. |
4 | | * |
5 | | * This Source Code Form is subject to the terms of the Mozilla Public |
6 | | * License, v. 2.0. If a copy of the MPL was not distributed with this |
7 | | * file, You can obtain one at http://mozilla.org/MPL/2.0/. |
8 | | * |
9 | | * This file incorporates work covered by the following license notice: |
10 | | * |
11 | | * Licensed to the Apache Software Foundation (ASF) under one or more |
12 | | * contributor license agreements. See the NOTICE file distributed |
13 | | * with this work for additional information regarding copyright |
14 | | * ownership. The ASF licenses this file to you under the Apache |
15 | | * License, Version 2.0 (the "License"); you may not use this file |
16 | | * except in compliance with the License. You may obtain a copy of |
17 | | * the License at http://www.apache.org/licenses/LICENSE-2.0 . |
18 | | */ |
19 | | |
20 | | #pragma once |
21 | | |
22 | | #include <vcl/scheduler.hxx> |
23 | | #include <vcl/task.hxx> |
24 | | |
25 | | class Task; |
26 | | |
27 | | // Internal scheduler record holding intrusive linked list pieces |
28 | | struct ImplSchedulerData final |
29 | | { |
30 | | ImplSchedulerData* mpNext; ///< Pointer to the next element in list |
31 | | Task* mpTask; ///< Pointer to VCL Task instance |
32 | | sal_uInt64 mnUpdateTime; ///< Last Update Time |
33 | | TaskPriority mePriority; ///< Task priority |
34 | | /** |
35 | | * Is the Task currently processed / on the stack? |
36 | | * |
37 | | * Since the introduction of the scheduler stack, this became merely a |
38 | | * debugging and assertion hint. No decisions are anymore made based on |
39 | | * this, because invoked Tasks are removed from the scheduler lists and |
40 | | * placed on the stack, so no code should actually ever find one, where |
41 | | * mbInScheduler is true (I don't see a reason to walk the stack for |
42 | | * normal Scheduler usage, that is). |
43 | | * |
44 | | * This was originally used to prevent invoking Tasks recursively. |
45 | | **/ |
46 | | bool mbInScheduler; ///< Task currently processed? |
47 | | |
48 | | const char *GetDebugName() const; |
49 | | }; |
50 | | |
51 | | class SchedulerGuard final |
52 | | { |
53 | | public: |
54 | | SchedulerGuard() |
55 | 6.43M | { |
56 | 6.43M | Scheduler::Lock(); |
57 | 6.43M | } |
58 | | |
59 | | ~SchedulerGuard() |
60 | 6.43M | { |
61 | 6.43M | Scheduler::Unlock(); |
62 | 6.43M | } |
63 | | }; |
64 | | |
65 | | /* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |