diff options
author | Thomas Zander <t.zander@nokia.com> | 2010-09-08 14:38:06 +0200 |
---|---|---|
committer | Thomas Zander <t.zander@nokia.com> | 2010-09-09 12:17:47 +0200 |
commit | 881b7547c2be0dc2b7e223175b8c43e4bda78991 (patch) | |
tree | 925f30c8d649f5cad1fe0cc9f7956d3c90332d93 /src/corelib/io/qfileinfo.cpp | |
parent | e34c6ac1146d7bb97da88805764d9fa90763b6b5 (diff) |
Make QFileInfo use the new filesystemengine
The creation of a QAbstractFileEngine derived class will now
be avoided if the file we are watching is on the native file system
and from then on all access will be through the direct API
Notice that for QFileInfo::path, isRelative, filePath, fileName,
baseName, completeBaseName, completeSuffix and suffix we now use
the QFileSystemEntry instead of asking the engine. This means
that some buggy or just weird user provided engines no longer
get used and as such we might not be bug compatible.
Reviewed-by: João Abecasis
Diffstat (limited to 'src/corelib/io/qfileinfo.cpp')
-rw-r--r-- | src/corelib/io/qfileinfo.cpp | 213 |
1 files changed, 172 insertions, 41 deletions
diff --git a/src/corelib/io/qfileinfo.cpp b/src/corelib/io/qfileinfo.cpp index 7eca212463..232a32ee1a 100644 --- a/src/corelib/io/qfileinfo.cpp +++ b/src/corelib/io/qfileinfo.cpp @@ -51,7 +51,47 @@ QString QFileInfoPrivate::getFileName(QAbstractFileEngine::FileName name) const { if (cache_enabled && !fileNames[(int)name].isNull()) return fileNames[(int)name]; - QString ret = fileEngine->fileName(name); + + QString ret; + if (fileEngine == 0) { // local file; use the QFileSystemEngine directly + switch (name) { + case QAbstractFileEngine::CanonicalName: + case QAbstractFileEngine::CanonicalPathName: { + QFileSystemEntry entry = QFileSystemEngine::canonicalName(fileEntry); + if (cache_enabled) { // be smart and store both + fileNames[QAbstractFileEngine::CanonicalName] = entry.filePath(); + fileNames[QAbstractFileEngine::CanonicalPathName] = entry.path(); + } + if (name == QAbstractFileEngine::CanonicalName) + ret = entry.filePath(); + else + ret = entry.path(); + break; + } + case QAbstractFileEngine::LinkName: + ret = QFileSystemEngine::getLinkTarget(fileEntry, metaData).filePath(); + break; + case QAbstractFileEngine::BundleName: + ret = QFileSystemEngine::bundleName(fileEntry); + break; + case QAbstractFileEngine::AbsoluteName: + case QAbstractFileEngine::AbsolutePathName: { + QFileSystemEntry entry = QFileSystemEngine::absoluteName(fileEntry); + if (cache_enabled) { // be smart and store both + fileNames[QAbstractFileEngine::AbsoluteName] = entry.filePath(); + fileNames[QAbstractFileEngine::AbsolutePathName] = entry.path(); + } + if (name == QAbstractFileEngine::AbsoluteName) + ret = entry.filePath(); + else + ret = entry.path(); + break; + } + default: break; + } + } else { + ret = fileEngine->fileName(name); + } if (ret.isNull()) ret = QLatin1String(""); if (cache_enabled) @@ -61,6 +101,7 @@ QString QFileInfoPrivate::getFileName(QAbstractFileEngine::FileName name) const QString QFileInfoPrivate::getFileOwner(QAbstractFileEngine::FileOwner own) const { + Q_ASSERT(fileEngine); // should never be called when using the native FS if (cache_enabled && !fileOwners[(int)own].isNull()) return fileOwners[(int)own]; QString ret = fileEngine->owner(own); @@ -73,6 +114,7 @@ QString QFileInfoPrivate::getFileOwner(QAbstractFileEngine::FileOwner own) const uint QFileInfoPrivate::getFileFlags(QAbstractFileEngine::FileFlags request) const { + Q_ASSERT(fileEngine); // should never be called when using the native FS // We split the testing into tests for for LinkType, BundleType, PermsMask // and the rest. // Tests for file permissions on Windows can be slow, expecially on network @@ -133,6 +175,7 @@ uint QFileInfoPrivate::getFileFlags(QAbstractFileEngine::FileFlags request) cons QDateTime &QFileInfoPrivate::getFileTime(QAbstractFileEngine::FileTime request) const { + Q_ASSERT(fileEngine); // should never be called when using the native FS if (!cache_enabled) clearFlags(); uint cf; @@ -330,23 +373,23 @@ bool QFileInfo::operator==(const QFileInfo &fileinfo) const return true; if (d->isDefaultConstructed || fileinfo.d_ptr->isDefaultConstructed) return false; - if (d->fileEngine->caseSensitive() != fileinfo.d_ptr->fileEngine->caseSensitive()) - return false; - if (fileinfo.size() == size()) { //if the size isn't the same... - QString file1 = canonicalFilePath(), - file2 = fileinfo.canonicalFilePath(); - if (file1.length() == file2.length()) { - if (!fileinfo.d_ptr->fileEngine->caseSensitive()) { - for (int i = 0; i < file1.length(); i++) { - if (file1.at(i).toLower() != file2.at(i).toLower()) - return false; - } - return true; - } - return (file1 == file2); - } + Qt::CaseSensitivity sensitive; + if (d->fileEngine == 0 || fileinfo.d_ptr->fileEngine == 0) { + if (d->fileEngine != fileinfo.d_ptr->fileEngine) // one is native, the other is a custom file-engine + return false; + + sensitive = QFileSystemEngine::isCaseSensitive() ? Qt::CaseSensitive : Qt::CaseInsensitive; + // if both are native just compare the canonicalFilePath of both. + } else { + if (d->fileEngine->caseSensitive() != fileinfo.d_ptr->fileEngine->caseSensitive()) + return false; + sensitive = d->fileEngine->caseSensitive() ? Qt::CaseSensitive : Qt::CaseInsensitive; } - return false; + + if (fileinfo.size() != size()) //if the size isn't the same... + return false; + + return canonicalFilePath().compare(fileinfo.canonicalFilePath(), sensitive) == 0; } /*! @@ -502,7 +545,7 @@ QString QFileInfo::absolutePath() const if (d->isDefaultConstructed) { return QLatin1String(""); - } else if (d->fileName.isEmpty()) { + } else if (d->fileEntry.isEmpty()) { qWarning("QFileInfo::absolutePath: Constructed with empty filename"); return QLatin1String(""); } @@ -539,7 +582,7 @@ QString QFileInfo::path() const Q_D(const QFileInfo); if (d->isDefaultConstructed) return QLatin1String(""); - return d->getFileName(QAbstractFileEngine::PathName); + return d->fileEntry.path(); } /*! @@ -563,7 +606,7 @@ bool QFileInfo::isRelative() const Q_D(const QFileInfo); if (d->isDefaultConstructed) return true; - return d->fileEngine->isRelativePath(); + return d->fileEntry.isRelative(); } /*! @@ -576,12 +619,10 @@ bool QFileInfo::isRelative() const bool QFileInfo::makeAbsolute() { if (d_ptr.constData()->isDefaultConstructed - || !d_ptr.constData()->fileEngine->isRelativePath()) + || !d_ptr.constData()->fileEntry.isRelative()) return false; - QString absFileName = d_ptr.constData()->getFileName(QAbstractFileEngine::AbsoluteName); - // QSharedDataPointer::operator->() will detach. - setFile(absFileName); + setFile(absoluteFilePath()); return true; } @@ -596,6 +637,11 @@ bool QFileInfo::exists() const Q_D(const QFileInfo); if (d->isDefaultConstructed) return false; + if (d->fileEngine == 0) { + if (!d->cache_enabled || !d->metaData.hasFlags(QFileSystemMetaData::ExistsAttribute)) + QFileSystemEngine::fillMetaData(d->fileEntry, d->metaData, QFileSystemMetaData::ExistsAttribute); + return d->metaData.exists(); + } return d->getFileFlags(QAbstractFileEngine::ExistsFlag); } @@ -623,7 +669,7 @@ QString QFileInfo::filePath() const Q_D(const QFileInfo); if (d->isDefaultConstructed) return QLatin1String(""); - return d->getFileName(QAbstractFileEngine::DefaultName); + return d->fileEntry.filePath(); } /*! @@ -642,7 +688,7 @@ QString QFileInfo::fileName() const Q_D(const QFileInfo); if (d->isDefaultConstructed) return QLatin1String(""); - return d->getFileName(QAbstractFileEngine::BaseName); + return d->fileEntry.fileName(); } /*! @@ -686,7 +732,7 @@ QString QFileInfo::baseName() const Q_D(const QFileInfo); if (d->isDefaultConstructed) return QLatin1String(""); - return d->getFileName(QAbstractFileEngine::BaseName).section(QLatin1Char('.'), 0, 0); + return d->fileEntry.baseName(); } /*! @@ -705,9 +751,7 @@ QString QFileInfo::completeBaseName() const Q_D(const QFileInfo); if (d->isDefaultConstructed) return QLatin1String(""); - QString name = d->getFileName(QAbstractFileEngine::BaseName); - int index = name.lastIndexOf(QLatin1Char('.')); - return (index == -1) ? name : name.left(index); + return d->fileEntry.completeBaseName(); } /*! @@ -726,11 +770,7 @@ QString QFileInfo::completeSuffix() const Q_D(const QFileInfo); if (d->isDefaultConstructed) return QLatin1String(""); - QString fileName = d->getFileName(QAbstractFileEngine::BaseName); - int firstDot = fileName.indexOf(QLatin1Char('.')); - if (firstDot == -1) - return QLatin1String(""); - return fileName.mid(firstDot + 1); + return d->fileEntry.completeSuffix(); } /*! @@ -753,11 +793,7 @@ QString QFileInfo::suffix() const Q_D(const QFileInfo); if (d->isDefaultConstructed) return QLatin1String(""); - QString fileName = d->getFileName(QAbstractFileEngine::BaseName); - int lastDot = fileName.lastIndexOf(QLatin1Char('.')); - if (lastDot == -1) - return QLatin1String(""); - return fileName.mid(lastDot + 1); + return d->fileEntry.suffix(); } @@ -781,8 +817,9 @@ QString QFileInfo::suffix() const */ QDir QFileInfo::dir() const { + Q_D(const QFileInfo); // ### Qt5: Maybe rename this to parentDirectory(), considering what it actually do? - return QDir(path()); + return QDir(d->fileEntry.path()); } /*! @@ -818,6 +855,11 @@ bool QFileInfo::isReadable() const Q_D(const QFileInfo); if (d->isDefaultConstructed) return false; + if (d->fileEngine == 0) { + if (!d->cache_enabled || !d->metaData.hasFlags(QFileSystemMetaData::UserReadPermission)) + QFileSystemEngine::fillMetaData(d->fileEntry, d->metaData, QFileSystemMetaData::UserReadPermission); + return (d->metaData.permissions() & QFile::ReadUser) != 0; + } return d->getFileFlags(QAbstractFileEngine::ReadUserPerm); } @@ -831,6 +873,11 @@ bool QFileInfo::isWritable() const Q_D(const QFileInfo); if (d->isDefaultConstructed) return false; + if (d->fileEngine == 0) { + if (!d->cache_enabled || !d->metaData.hasFlags(QFileSystemMetaData::UserWritePermission)) + QFileSystemEngine::fillMetaData(d->fileEntry, d->metaData, QFileSystemMetaData::UserWritePermission); + return (d->metaData.permissions() & QFile::WriteUser) != 0; + } return d->getFileFlags(QAbstractFileEngine::WriteUserPerm); } @@ -844,6 +891,11 @@ bool QFileInfo::isExecutable() const Q_D(const QFileInfo); if (d->isDefaultConstructed) return false; + if (d->fileEngine == 0) { + if (!d->cache_enabled || !d->metaData.hasFlags(QFileSystemMetaData::UserExecutePermission)) + QFileSystemEngine::fillMetaData(d->fileEntry, d->metaData, QFileSystemMetaData::UserExecutePermission); + return (d->metaData.permissions() & QFile::ExeUser) != 0; + } return d->getFileFlags(QAbstractFileEngine::ExeUserPerm); } @@ -858,6 +910,11 @@ bool QFileInfo::isHidden() const Q_D(const QFileInfo); if (d->isDefaultConstructed) return false; + if (d->fileEngine == 0) { + if (!d->cache_enabled || !d->metaData.hasFlags(QFileSystemMetaData::HiddenAttribute)) + QFileSystemEngine::fillMetaData(d->fileEntry, d->metaData, QFileSystemMetaData::HiddenAttribute); + return d->metaData.isHidden(); + } return d->getFileFlags(QAbstractFileEngine::HiddenFlag); } @@ -873,6 +930,11 @@ bool QFileInfo::isFile() const Q_D(const QFileInfo); if (d->isDefaultConstructed) return false; + if (d->fileEngine == 0) { + if (!d->cache_enabled || !d->metaData.hasFlags(QFileSystemMetaData::FileType)) + QFileSystemEngine::fillMetaData(d->fileEntry, d->metaData, QFileSystemMetaData::FileType); + return d->metaData.isFile(); + } return d->getFileFlags(QAbstractFileEngine::FileType); } @@ -887,6 +949,11 @@ bool QFileInfo::isDir() const Q_D(const QFileInfo); if (d->isDefaultConstructed) return false; + if (d->fileEngine == 0) { + if (!d->cache_enabled || !d->metaData.hasFlags(QFileSystemMetaData::DirectoryType)) + QFileSystemEngine::fillMetaData(d->fileEntry, d->metaData, QFileSystemMetaData::DirectoryType); + return d->metaData.isDirectory(); + } return d->getFileFlags(QAbstractFileEngine::DirectoryType); } @@ -903,6 +970,11 @@ bool QFileInfo::isBundle() const Q_D(const QFileInfo); if (d->isDefaultConstructed) return false; + if (d->fileEngine == 0) { + if (!d->cache_enabled || !d->metaData.hasFlags(QFileSystemMetaData::BundleType)) + QFileSystemEngine::fillMetaData(d->fileEntry, d->metaData, QFileSystemMetaData::BundleType); + return d->metaData.isBundle(); + } return d->getFileFlags(QAbstractFileEngine::BundleType); } @@ -928,6 +1000,11 @@ bool QFileInfo::isSymLink() const Q_D(const QFileInfo); if (d->isDefaultConstructed) return false; + if (d->fileEngine == 0) { + if (!d->cache_enabled || !d->metaData.hasFlags(QFileSystemMetaData::LinkType)) + QFileSystemEngine::fillMetaData(d->fileEntry, d->metaData, QFileSystemMetaData::LinkType); + return d->metaData.isLink(); + } return d->getFileFlags(QAbstractFileEngine::LinkType); } @@ -941,6 +1018,8 @@ bool QFileInfo::isRoot() const Q_D(const QFileInfo); if (d->isDefaultConstructed) return true; + if (d->fileEngine == 0) + return d->fileEntry.isRoot(); return d->getFileFlags(QAbstractFileEngine::RootFlag); } @@ -987,6 +1066,11 @@ QString QFileInfo::owner() const Q_D(const QFileInfo); if (d->isDefaultConstructed) return QLatin1String(""); + if (d->fileEngine == 0) { + if (!d->cache_enabled || !d->metaData.hasFlags(QFileSystemMetaData::UserName)) + QFileSystemEngine::fillMetaData(d->fileEntry, d->metaData, QFileSystemMetaData::UserName); + return d->metaData.user(); + } return d->getFileOwner(QAbstractFileEngine::OwnerUser); } @@ -1003,6 +1087,11 @@ uint QFileInfo::ownerId() const Q_D(const QFileInfo); if (d->isDefaultConstructed) return 0; + if (d->fileEngine == 0) { + if (!d->cache_enabled || !d->metaData.hasFlags(QFileSystemMetaData::UserId)) + QFileSystemEngine::fillMetaData(d->fileEntry, d->metaData, QFileSystemMetaData::UserId); + return d->metaData.userId(); + } return d->fileEngine->ownerId(QAbstractFileEngine::OwnerUser); } @@ -1021,6 +1110,11 @@ QString QFileInfo::group() const Q_D(const QFileInfo); if (d->isDefaultConstructed) return QLatin1String(""); + if (d->fileEngine == 0) { + if (!d->cache_enabled || !d->metaData.hasFlags(QFileSystemMetaData::GroupName)) + QFileSystemEngine::fillMetaData(d->fileEntry, d->metaData, QFileSystemMetaData::GroupName); + return d->metaData.group(); + } return d->getFileOwner(QAbstractFileEngine::OwnerGroup); } @@ -1037,6 +1131,11 @@ uint QFileInfo::groupId() const Q_D(const QFileInfo); if (d->isDefaultConstructed) return 0; + if (d->fileEngine == 0) { + if (!d->cache_enabled || !d->metaData.hasFlags(QFileSystemMetaData::GroupId)) + QFileSystemEngine::fillMetaData(d->fileEntry, d->metaData, QFileSystemMetaData::GroupId); + return d->metaData.groupId(); + } return d->fileEngine->ownerId(QAbstractFileEngine::OwnerGroup); } @@ -1058,6 +1157,13 @@ bool QFileInfo::permission(QFile::Permissions permissions) const Q_D(const QFileInfo); if (d->isDefaultConstructed) return false; + if (d->fileEngine == 0) { + // the QFileSystemMetaData::MetaDataFlag and QFile::Permissions overlap, so just static cast. + QFileSystemMetaData::MetaDataFlag permissionFlags = static_cast<QFileSystemMetaData::MetaDataFlag>((int)permissions); + if (!d->cache_enabled || !d->metaData.hasFlags(permissionFlags)) + QFileSystemEngine::fillMetaData(d->fileEntry, d->metaData, permissionFlags); + return (d->metaData.permissions() & permissions) == permissions; + } return d->getFileFlags(QAbstractFileEngine::FileFlags((int)permissions)) == (uint)permissions; } @@ -1070,6 +1176,11 @@ QFile::Permissions QFileInfo::permissions() const Q_D(const QFileInfo); if (d->isDefaultConstructed) return 0; + if (d->fileEngine == 0) { + if (!d->cache_enabled || !d->metaData.hasFlags(QFileSystemMetaData::Permissions)) + QFileSystemEngine::fillMetaData(d->fileEntry, d->metaData, QFileSystemMetaData::Permissions); + return d->metaData.permissions(); + } return QFile::Permissions(d->getFileFlags(QAbstractFileEngine::PermsMask) & QAbstractFileEngine::PermsMask); } @@ -1085,6 +1196,11 @@ qint64 QFileInfo::size() const Q_D(const QFileInfo); if (d->isDefaultConstructed) return 0; + if (d->fileEngine == 0) { + if (!d->cache_enabled || !d->metaData.hasFlags(QFileSystemMetaData::SizeAttribute)) + QFileSystemEngine::fillMetaData(d->fileEntry, d->metaData, QFileSystemMetaData::SizeAttribute); + return d->metaData.size(); + } if (!d->getCachedFlag(QFileInfoPrivate::CachedSize)) { d->setCachedFlag(QFileInfoPrivate::CachedSize); d->fileSize = d->fileEngine->size(); @@ -1110,6 +1226,11 @@ QDateTime QFileInfo::created() const Q_D(const QFileInfo); if (d->isDefaultConstructed) return QDateTime(); + if (d->fileEngine == 0) { + if (!d->cache_enabled || !d->metaData.hasFlags(QFileSystemMetaData::CreationTime)) + QFileSystemEngine::fillMetaData(d->fileEntry, d->metaData, QFileSystemMetaData::CreationTime); + return d->metaData.creationTime(); + } return d->getFileTime(QAbstractFileEngine::CreationTime); } @@ -1123,6 +1244,11 @@ QDateTime QFileInfo::lastModified() const Q_D(const QFileInfo); if (d->isDefaultConstructed) return QDateTime(); + if (d->fileEngine == 0) { + if (!d->cache_enabled || !d->metaData.hasFlags(QFileSystemMetaData::ModificationTime)) + QFileSystemEngine::fillMetaData(d->fileEntry, d->metaData, QFileSystemMetaData::ModificationTime); + return d->metaData.modificationTime(); + } return d->getFileTime(QAbstractFileEngine::ModificationTime); } @@ -1139,6 +1265,11 @@ QDateTime QFileInfo::lastRead() const Q_D(const QFileInfo); if (d->isDefaultConstructed) return QDateTime(); + if (d->fileEngine == 0) { + if (!d->cache_enabled || !d->metaData.hasFlags(QFileSystemMetaData::AccessTime)) + QFileSystemEngine::fillMetaData(d->fileEntry, d->metaData, QFileSystemMetaData::AccessTime); + return d->metaData.accessTime(); + } return d->getFileTime(QAbstractFileEngine::AccessTime); } |