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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing
**
** This file is part of the Qt Build Suite.
**
** 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 http://www.qt.io/terms-conditions. For further information
** use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
****************************************************************************/
#ifndef QBS_BUILDGRAPHEXECUTOR_H
#define QBS_BUILDGRAPHEXECUTOR_H
#include "forward_decls.h"
#include "buildgraphvisitor.h"
#include <buildgraph/artifact.h>
#include <buildgraph/scanresultcache.h>
#include <language/forward_decls.h>
#include <logging/logger.h>
#include <tools/buildoptions.h>
#include <tools/error.h>
#include <QObject>
#include <queue>
QT_BEGIN_NAMESPACE
class QTimer;
QT_END_NAMESPACE
namespace qbs {
class ProcessResult;
namespace Internal {
class ExecutorJob;
class FileTime;
class InputArtifactScannerContext;
class ProductInstaller;
class ProgressObserver;
class RuleNode;
class Executor : public QObject, private BuildGraphVisitor
{
Q_OBJECT
public slots:
void build();
public:
Executor(const Logger &logger, QObject *parent = 0);
~Executor();
void setProject(const TopLevelProjectPtr &project);
void setProducts(const QList<ResolvedProductPtr> &productsToBuild);
void setBuildOptions(const BuildOptions &buildOptions);
void setProgressObserver(ProgressObserver *observer) { m_progressObserver = observer; }
ErrorInfo error() const { return m_error; }
signals:
void reportCommandDescription(const QString &highlight, const QString &message);
void reportProcessResult(const qbs::ProcessResult &result);
void finished();
private slots:
void onJobFinished(const qbs::ErrorInfo &err);
void finish();
void checkForCancellation();
private:
// BuildGraphVisitor implementation
bool visit(Artifact *artifact);
bool visit(RuleNode *ruleNode);
enum ExecutorState { ExecutorIdle, ExecutorRunning, ExecutorCanceling };
struct ComparePriority
{
bool operator() (const BuildGraphNode *x, const BuildGraphNode *y) const;
};
typedef std::priority_queue<Artifact *, std::vector<BuildGraphNode *>, ComparePriority> Leaves;
void doBuild();
void prepareAllNodes();
void prepareArtifact(Artifact *artifact);
void prepareReachableNodes();
void prepareReachableNodes_impl(BuildGraphNode *node);
void prepareProducts();
void setupRootNodes();
void initLeaves();
void updateLeaves(const NodeSet &nodes);
void updateLeaves(BuildGraphNode *node, NodeSet &seenNodes);
bool scheduleJobs();
void buildArtifact(Artifact *artifact);
void executeRuleNode(RuleNode *ruleNode);
void finishJob(ExecutorJob *job, bool success);
void finishNode(BuildGraphNode *leaf);
void finishArtifact(Artifact *artifact);
void setState(ExecutorState);
void addExecutorJobs();
void cancelJobs();
void setupProgressObserver();
void doSanityChecks();
void handleError(const ErrorInfo &error);
void rescueOldBuildData(Artifact *artifact, bool *childrenAdded);
bool checkForUnbuiltDependencies(Artifact *artifact);
void potentiallyRunTransformer(const TransformerPtr &transformer);
void runTransformer(const TransformerPtr &transformer);
void finishTransformer(const TransformerPtr &transformer);
void possiblyInstallArtifact(const Artifact *artifact);
void checkForUnbuiltProducts();
bool checkNodeProduct(BuildGraphNode *node);
bool mustExecuteTransformer(const TransformerPtr &transformer) const;
bool isUpToDate(Artifact *artifact) const;
void retrieveSourceFileTimestamp(Artifact *artifact) const;
FileTime recursiveFileTime(const QString &filePath) const;
QString configString() const;
bool transformerHasMatchingOutputTags(const TransformerConstPtr &transformer) const;
bool transformerHasMatchingInputFiles(const TransformerConstPtr &transformer) const;
typedef QHash<ExecutorJob *, TransformerPtr> JobMap;
JobMap m_processingJobs;
ProductInstaller *m_productInstaller;
RulesEvaluationContextPtr m_evalContext;
BuildOptions m_buildOptions;
Logger m_logger;
ProgressObserver *m_progressObserver;
QList<ExecutorJob*> m_availableJobs;
ExecutorState m_state;
TopLevelProjectPtr m_project;
QList<ResolvedProductPtr> m_productsToBuild;
NodeSet m_roots;
Leaves m_leaves;
QList<Artifact *> m_changedSourceArtifacts;
ScanResultCache m_scanResultCache;
InputArtifactScannerContext *m_inputArtifactScanContext;
ErrorInfo m_error;
bool m_explicitlyCanceled;
FileTags m_activeFileTags;
QTimer * const m_cancelationTimer;
QStringList m_artifactsRemovedFromDisk;
const bool m_doTrace;
const bool m_doDebug;
};
} // namespace Internal
} // namespace qbs
#endif // QBS_BUILDGRAPHEXECUTOR_H
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