1 files changed, 111 insertions, 0 deletions
diff --git a/src/plugins/cpptools/cppprojectupdater.cpp b/src/plugins/cpptools/cppprojectupdater.cpp
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index 0000000000..33a2b1df58
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+++ b/src/plugins/cpptools/cppprojectupdater.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2017 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt Creator.
+**
+** 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 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** 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.
+**
+****************************************************************************/
+
+#include "cppprojectupdater.h"
+
+#include "cppmodelmanager.h"
+#include "cppprojectinfogenerator.h"
+
+#include <projectexplorer/toolchainmanager.h>
+
+#include <utils/qtcassert.h>
+#include <utils/runextensions.h>
+
+namespace CppTools {
+
+CppProjectUpdater::CppProjectUpdater(ProjectExplorer::Project *project)
+    : m_project(project)
+{
+    connect(&m_generateFutureWatcher, &QFutureWatcher<void>::finished,
+            this, &CppProjectUpdater::onProjectInfoGenerated);
+}
+
+CppProjectUpdater::~CppProjectUpdater()
+{
+    cancelAndWaitForFinished();
+}
+
+void CppProjectUpdater::update(const ProjectUpdateInfo &projectUpdateInfo)
+{
+    // Stop previous update.
+    cancel();
+    m_futureInterface.waitForFinished();
+    m_futureInterface = QFutureInterface<void>();
+
+    m_projectUpdateInfo = projectUpdateInfo;
+
+    // Ensure that we do not operate on a deleted toolchain.
+    using namespace ProjectExplorer;
+    connect(ToolChainManager::instance(), &ToolChainManager::toolChainRemoved,
+            this, &CppProjectUpdater::onToolChainRemoved);
+
+    // Run the project info generator in a worker thread and continue if that one is finished.
+    const QFutureInterface<void> &futureInterface = m_futureInterface;
+    const QFuture<ProjectInfo> future = Utils::runAsync([=]() {
+        Internal::ProjectInfoGenerator generator(futureInterface, projectUpdateInfo);
+        return generator.generate();
+    });
+    m_generateFutureWatcher.setFuture(future);
+}
+
+void CppProjectUpdater::cancel()
+{
+    disconnect(&m_generateFutureWatcher);
+    m_futureInterface.cancel();
+}
+
+void CppProjectUpdater::cancelAndWaitForFinished()
+{
+    cancel();
+    m_futureInterface.waitForFinished();
+}
+
+void CppProjectUpdater::onToolChainRemoved(ProjectExplorer::ToolChain *t)
+{
+    QTC_ASSERT(t, return);
+    if (t == m_projectUpdateInfo.cToolChain || t == m_projectUpdateInfo.cxxToolChain)
+        cancelAndWaitForFinished();
+}
+
+void CppProjectUpdater::onProjectInfoGenerated()
+{
+    // From now on we do not access the toolchain anymore, so disconnect.
+    using namespace ProjectExplorer;
+    disconnect(ToolChainManager::instance(), &ToolChainManager::toolChainRemoved,
+               this, &CppProjectUpdater::onToolChainRemoved);
+
+    if (m_futureInterface.isCanceled())
+        return;
+
+    QFuture<void> future = CppModelManager::instance()
+            ->updateProjectInfo(m_futureInterface, m_generateFutureWatcher.result());
+    QTC_CHECK(future != QFuture<void>());
+
+    const ProjectInfo projectInfo = CppModelManager::instance()->projectInfo(m_project);
+    QTC_CHECK(projectInfo.isValid());
+    emit projectInfoUpdated(projectInfo);
+}
+
+} // namespace CppTools