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JobSequence.cpp
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1/* -*- C++ -*-
2
3 This file implements the JobSequence 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.h 30 2005-08-16 16:16:04Z mirko $
27*/
28
29#include "JobSequence.h"
30#include "WeaverInterface.h"
31#include "DebuggingAids.h"
32#include "DependencyPolicy.h"
33
34using namespace ThreadWeaver;
35
36JobSequence::JobSequence ( QObject *parent )
37 : JobCollection ( parent ), d ( 0 )
38{
39}
40
41void JobSequence::aboutToBeQueued ( WeaverInterface *weaver )
42{
43 REQUIRE (weaver != 0);
44
45 if ( jobListLength() > 1 )
46 {
47 // set up the dependencies:
48 for ( int i = 1; i < jobListLength(); ++i )
49 {
50 Job* jobA = jobAt(i);
51 Job* jobB = jobAt(i-1);
52 P_ASSERT ( jobA != 0 );
53 P_ASSERT ( jobB != 0 );
54 DependencyPolicy::instance().addDependency ( jobA, jobB );
55 }
56 }
57
58 JobCollection::aboutToBeQueued( weaver );
59}
60
61void JobSequence::internalJobDone( Job* job)
62{
63 REQUIRE ( job != 0 );
64
65 if ( !job->success() )
66 {
67 stop( job );
68 }
69
70 JobCollection::internalJobDone(job);
71}
72
73#include "JobSequence.moc"
DebuggingAids.h
P_ASSERT
#define P_ASSERT(x)
P_ASSERT ensures that error messages occur in the correct order.
Definition: DebuggingAids.h:103
REQUIRE
#define REQUIRE(x)
Definition: DebuggingAids.h:146
DependencyPolicy.h
JobSequence.h
WeaverInterface.h
QObject
ThreadWeaver::DependencyPolicy::addDependency
void addDependency(Job *jobA, Job *jobB)
Add jobB as a dependency of jobA.
Definition: DependencyPolicy.cpp:74
ThreadWeaver::DependencyPolicy::instance
static DependencyPolicy & instance()
Definition: DependencyPolicy.cpp:152
ThreadWeaver::JobCollection
A JobCollection is a vector of Jobs that will be queued together.
Definition: JobCollection.h:50
ThreadWeaver::JobCollection::stop
void stop(ThreadWeaver::Job *job)
Stop processing, dequeue all remaining Jobs.
Definition: JobCollection.cpp:155
ThreadWeaver::JobCollection::jobAt
Job * jobAt(int i)
Return a reference to the job in the job list at position i.
Definition: JobCollection.cpp:239
ThreadWeaver::JobCollection::jobListLength
const int jobListLength()
Return the number of jobs in the joblist.
Definition: JobCollection.cpp:246
ThreadWeaver::JobCollection::internalJobDone
virtual void internalJobDone(Job *)
Callback method for done jobs.
Definition: JobCollection.cpp:302
ThreadWeaver::JobCollection::aboutToBeQueued
void aboutToBeQueued(WeaverInterface *weaver)
Overload to queue the collection.
Definition: JobCollection.cpp:167
ThreadWeaver::JobSequence::JobSequence
JobSequence(QObject *parent=0)
Definition: JobSequence.cpp:36
ThreadWeaver::JobSequence::internalJobDone
void internalJobDone(Job *)
reimplemented
Definition: JobSequence.cpp:61
ThreadWeaver::JobSequence::aboutToBeQueued
void aboutToBeQueued(WeaverInterface *weaver)
Overload to queue the sequence.
Definition: JobSequence.cpp:41
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::Job::success
virtual bool success() const
Return whether the Job finished successfully or not.
Definition: Job.cpp:144
ThreadWeaver::WeaverInterface
WeaverInterface provides a common interface for weaver implementations.
Definition: WeaverInterface.h:61
ThreadWeaver
Definition: DebuggingAids.h:51
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