1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
|
/****************************************************************************
**
** Copyright (C) 2008-2012 NVIDIA Corporation.
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt 3D Studio.
**
** $QT_BEGIN_LICENSE:GPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 or (at your option) any later version
** approved by the KDE Free Qt Foundation. The licenses are as published by
** the Free Software Foundation and appearing in the file LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#pragma once
#ifndef QT3DS_RENDER_THREAD_POOL_H
#define QT3DS_RENDER_THREAD_POOL_H
#include "Qt3DSRender.h"
#include "foundation/Qt3DSRefCounted.h"
namespace qt3ds {
namespace render {
typedef void (*TTaskFunction)(void *inUserData);
struct TaskStates
{
enum Enum {
UnknownTask = 0,
Queued,
Running,
};
};
struct STask
{
void *m_UserData;
TTaskFunction m_Function;
TTaskFunction m_CancelFunction;
QT3DSU64 m_Id;
TaskStates::Enum m_TaskState;
STask *m_NextTask;
STask *m_PreviousTask;
STask(void *ud, TTaskFunction func, TTaskFunction cancelFunc, QT3DSU64 inId)
: m_UserData(ud)
, m_Function(func)
, m_CancelFunction(cancelFunc)
, m_Id(inId)
, m_TaskState(TaskStates::Queued)
, m_NextTask(NULL)
, m_PreviousTask(NULL)
{
}
STask()
: m_UserData(NULL)
, m_Function(NULL)
, m_CancelFunction(NULL)
, m_Id(0)
, m_TaskState(TaskStates::UnknownTask)
, m_NextTask(NULL)
, m_PreviousTask(NULL)
{
}
void CallFunction()
{
if (m_Function)
m_Function(m_UserData);
}
void Cancel()
{
if (m_CancelFunction)
m_CancelFunction(m_UserData);
}
};
struct CancelReturnValues
{
enum Enum {
TaskCanceled = 0,
TaskRunning,
TaskNotFound,
};
};
class IThreadPool : public NVRefCounted
{
protected:
virtual ~IThreadPool() {}
public:
// Add a task to be run at some point in the future.
// Tasks will be run roughly in order they are given.
// The returned value is a handle that can be used to query
// details about the task
// Cancel function will be called if the thread pool is destroyed or
// of the task gets canceled.
virtual QT3DSU64 AddTask(void *inUserData, TTaskFunction inFunction,
TTaskFunction inCancelFunction) = 0;
virtual TaskStates::Enum GetTaskState(QT3DSU64 inTaskId) = 0;
virtual CancelReturnValues::Enum CancelTask(QT3DSU64 inTaskId) = 0;
virtual STask GetNextTask() = 0;
virtual void TaskFinished(QT3DSU64 inId) = 0;
static IThreadPool &CreateThreadPool(NVFoundationBase &inFoundation,
QT3DSU32 inNumThreads = 4);
};
}
}
#endif
|
