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DependencyPolicy.h
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1/* -*- C++ -*-
2
3 This file implements the DependencyPolicy class.
4
5 $ Author: Mirko Boehm $
6 $ Copyright: (C) 2004-2013 Mirko Boehm $
7 $ Contact: mirko@kde.org
8 http://www.kde.org
9 http://creative-destruction.me $
10
11 This library is free software; you can redistribute it and/or
12 modify it under the terms of the GNU Library General Public
13 License as published by the Free Software Foundation; either
14 version 2 of the License, or (at your option) any later version.
15
16 This library is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 Library General Public License for more details.
20
21 You should have received a copy of the GNU Library General Public License
22 along with this library; see the file COPYING.LIB. If not, write to
23 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
24 Boston, MA 02110-1301, USA.
25
26 $Id: DebuggingAids.cpp 20 2005-08-08 21:02:51Z mirko $
27*/
28
29#ifndef DEPENDENCYPOLICY_H
30#define DEPENDENCYPOLICY_H
31
32template <typename T> class QList;
33
34#include "QueuePolicy.h"
35
36namespace ThreadWeaver {
37
49 class THREADWEAVER_EXPORT DependencyPolicy : public QueuePolicy
50 {
51 public:
53 ~DependencyPolicy();
54
60 void addDependency( Job* jobA, Job* jobB );
61
76 bool removeDependency( Job* jobA, Job* jobB );
77
85 void resolveDependencies ( Job* );
86
88 QList<Job*> getDependencies( Job* ) const;
89
90 // FIXME add factory method for singleton creation
91 static DependencyPolicy& instance();
92
93 bool canRun( Job* );
94
95 void free( Job* );
96
97 void release( Job* );
98
99 void destructed( Job* );
100
101 protected:
105 bool hasUnresolvedDependencies( Job* ) const;
106
107 DependencyPolicy();
108
109 private:
110 class Private;
111 Private * const d;
112
113 public:
115 void dumpJobDependencies();
116 };
117
118}
119
120#endif
QueuePolicy.h
QList
Definition: DependencyPolicy.h:32
ThreadWeaver::DependencyPolicy
DependencyPolicy implements the way dependencies between Jobs are handled.
Definition: DependencyPolicy.h:50
ThreadWeaver::Job
A Job is a simple abstraction of an action that is to be executed in a thread context.
Definition: Job.h:66
ThreadWeaver::QueuePolicy
QueuePolicy is an interface for customizations of the queueing behaviour of sets of jobs.
Definition: QueuePolicy.h:60
ThreadWeaver
Definition: DebuggingAids.h:51
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