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Avoid registering individual files for watching

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if we can do it en bloc. This reduces the freeze happening after loading
a project, at least on macOS with QFSEventsFileSystemWatcher, which
doesn't like getting 1000 files added one by one.

Task-number: QTCREATORBUG-25783
Change-Id: I2d508ac3334520cb8805a2179d42b86c9ba840d6
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
This commit is contained in:
Eike Ziller
2021-06-10 12:38:46 +02:00
parent 9915418f90
commit b29ee5493b
2 changed files with 58 additions and 46 deletions
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95
src/plugins/coreplugin/documentmanager.cpp
View File

@@ -300,9 +300,9 @@ DocumentManager *DocumentManager::instance()
return m_instance;
}
/* only called from addFileInfo(IDocument *) */
static void addFileInfo(IDocument *document, const QString &filePath,
const QString &filePathKey, bool isLink)
/* Only called from addFileInfo(IDocument *). Adds the document & state to various caches/lists,
but does not actually add a watcher. */
static void addFileInfo(IDocument *document, const QString &filePath, const QString &filePathKey)
{
FileStateItem state;
if (!filePath.isEmpty()) {
@@ -316,43 +316,51 @@ static void addFileInfo(IDocument *document, const QString &filePath,
state.watchedFilePath = filePath;
d->m_states.insert(filePathKey, state);
}
// Add or update watcher on file path
// This is also used to update the watcher in case of saved (==replaced) files or
// update link targets, even if there are multiple documents registered for it
const QString watchedFilePath = d->m_states.value(filePathKey).watchedFilePath;
qCDebug(log) << "adding (" << (isLink ? "link" : "full") << ") watch for"
<< watchedFilePath;
QFileSystemWatcher *watcher = nullptr;
if (isLink)
watcher = d->linkWatcher();
else
watcher = d->fileWatcher();
watcher->addPath(watchedFilePath);
d->m_states[filePathKey].lastUpdatedState.insert(document, state);
}
d->m_documentsWithWatch[document].append(filePathKey); // inserts a new QStringList if not already there
}
/* Adds the IDocument's file and possibly it's final link target to both m_states
/* Adds the IDocuments' file and possibly it's final link target to both m_states
(if it's file name is not empty), and the m_filesWithWatch list,
and adds a file watcher for each if not already done.
(The added file names are guaranteed to be absolute and cleaned.) */
static void addFileInfo(IDocument *document)
static void addFileInfos(const QList<IDocument *> &documents)
{
const QString documentFilePath = document->filePath().toString();
const QString filePath = DocumentManager::cleanAbsoluteFilePath(
documentFilePath, DocumentManager::KeepLinks);
const QString filePathKey = DocumentManager::filePathKey(
documentFilePath, DocumentManager::KeepLinks);
const QString resolvedFilePath = DocumentManager::cleanAbsoluteFilePath(
documentFilePath, DocumentManager::ResolveLinks);
const QString resolvedFilePathKey = DocumentManager::filePathKey(
documentFilePath, DocumentManager::ResolveLinks);
const bool isLink = filePath != resolvedFilePath;
addFileInfo(document, filePath, filePathKey, isLink);
if (isLink)
addFileInfo(document, resolvedFilePath, resolvedFilePathKey, false);
QStringList pathsToWatch;
QStringList linkPathsToWatch;
for (IDocument *document : documents) {
const QString documentFilePath = document->filePath().toString();
const QString filePath = DocumentManager::cleanAbsoluteFilePath(documentFilePath,
DocumentManager::KeepLinks);
const QString filePathKey = DocumentManager::filePathKey(documentFilePath,
DocumentManager::KeepLinks);
const QString resolvedFilePath
= DocumentManager::cleanAbsoluteFilePath(documentFilePath,
DocumentManager::ResolveLinks);
const QString resolvedFilePathKey
= DocumentManager::filePathKey(documentFilePath, DocumentManager::ResolveLinks);
const bool isLink = filePath != resolvedFilePath;
addFileInfo(document, filePath, filePathKey);
if (isLink) {
addFileInfo(document, resolvedFilePath, resolvedFilePathKey);
linkPathsToWatch.append(d->m_states.value(filePathKey).watchedFilePath);
pathsToWatch.append(d->m_states.value(resolvedFilePathKey).watchedFilePath);
} else {
pathsToWatch.append(d->m_states.value(filePathKey).watchedFilePath);
}
}
// Add or update watcher on file path
// This is also used to update the watcher in case of saved (==replaced) files or
// update link targets, even if there are multiple documents registered for it
if (!pathsToWatch.isEmpty()) {
qCDebug(log) << "adding full watch for" << pathsToWatch;
d->fileWatcher()->addPaths(pathsToWatch);
}
if (!linkPathsToWatch.isEmpty()) {
qCDebug(log) << "adding link watch for" << linkPathsToWatch;
d->linkWatcher()->addPaths(linkPathsToWatch);
}
}
/*!
@@ -378,16 +386,17 @@ void DocumentManager::addDocuments(const QList<IDocument *> &documents, bool add
return;
}
foreach (IDocument *document, documents) {
if (document && !d->m_documentsWithWatch.contains(document)) {
connect(document, &IDocument::changed, m_instance, &DocumentManager::checkForNewFileName);
connect(document, &QObject::destroyed, m_instance, &DocumentManager::documentDestroyed);
connect(document, &IDocument::filePathChanged,
m_instance, &DocumentManager::filePathChanged);
connect(document, &IDocument::changed, m_instance, &DocumentManager::updateSaveAll);
addFileInfo(document);
}
const QList<IDocument *> documentsToWatch = Utils::filtered(documents, [](IDocument *document) {
return document && !d->m_documentsWithWatch.contains(document);
});
for (IDocument *document : documentsToWatch) {
connect(document, &IDocument::changed, m_instance, &DocumentManager::checkForNewFileName);
connect(document, &QObject::destroyed, m_instance, &DocumentManager::documentDestroyed);
connect(document, &IDocument::filePathChanged,
m_instance, &DocumentManager::filePathChanged);
connect(document, &IDocument::changed, m_instance, &DocumentManager::updateSaveAll);
}
addFileInfos(documentsToWatch);
}
@@ -483,7 +492,7 @@ void DocumentManager::renamedFile(const QString &from, const QString &to)
d->m_blockedIDocument = document;
removeFileInfo(document);
document->setFilePath(FilePath::fromString(to));
addFileInfo(document);
addFileInfos({document});
d->m_blockedIDocument = nullptr;
}
emit m_instance->allDocumentsRenamed(from, to);
@@ -558,7 +567,7 @@ void DocumentManager::checkForNewFileName()
// Maybe the name has changed or file has been deleted and created again ...
// This also updates the state to the on disk state
removeFileInfo(document);
addFileInfo(document);
addFileInfos({document});
}
/*!
@@ -1193,7 +1202,7 @@ void DocumentManager::checkForReload()
// doesn't matter, because in that case we then reload the new version of the file already
// anyhow.
removeFileInfo(document);
addFileInfo(document);
addFileInfos({document});
bool success = true;
QString errorString;

9
src/plugins/projectexplorer/project.cpp
View File

@@ -150,7 +150,6 @@ ProjectDocument::ProjectDocument(const QString &mimeType,
setFilePath(fileName);
setMimeType(mimeType);
Core::DocumentManager::addDocument(this);
}
Core::IDocument::ReloadBehavior
@@ -223,6 +222,7 @@ Project::Project(const QString &mimeType,
: d(new ProjectPrivate)
{
d->m_document = std::make_unique<ProjectDocument>(mimeType, fileName, this);
Core::DocumentManager::addDocument(d->m_document.get());
d->m_macroExpander.setDisplayName(tr("Project"));
d->m_macroExpander.registerVariable("Project:Name", tr("Project Name"),
@@ -389,16 +389,19 @@ void Project::setExtraProjectFiles(const QSet<Utils::FilePath> &projectDocumentP
for (const auto &doc : qAsConst(d->m_extraProjectDocuments))
docUpdater(doc.get());
}
QList<Core::IDocument *> toRegister;
for (const Utils::FilePath &p : toAdd) {
if (docGenerator) {
std::unique_ptr<Core::IDocument> doc = docGenerator(p);
QTC_ASSERT(doc, continue);
d->m_extraProjectDocuments.push_back(std::move(doc));
} else {
d->m_extraProjectDocuments.emplace_back(std::make_unique<ProjectDocument>(
d->m_document->mimeType(), p, this));
auto document = std::make_unique<ProjectDocument>(d->m_document->mimeType(), p, this);
toRegister.append(document.get());
d->m_extraProjectDocuments.emplace_back(std::move(document));
}
}
Core::DocumentManager::addDocuments(toRegister);
}
void Project::updateExtraProjectFiles(const QSet<Utils::FilePath> &projectDocumentPaths,