diff options
Diffstat (limited to 'src/corelib/io/qstorageinfo_unix.cpp')
| -rw-r--r-- | src/corelib/io/qstorageinfo_unix.cpp | 80 |
1 files changed, 51 insertions, 29 deletions
diff --git a/src/corelib/io/qstorageinfo_unix.cpp b/src/corelib/io/qstorageinfo_unix.cpp index c02d82a711..ae5c42ffd1 100644 --- a/src/corelib/io/qstorageinfo_unix.cpp +++ b/src/corelib/io/qstorageinfo_unix.cpp @@ -1,31 +1,38 @@ /**************************************************************************** ** ** Copyright (C) 2014 Ivan Komissarov <ABBAPOH@gmail.com> -** Contact: http://www.qt.io/licensing/ +** Copyright (C) 2016 Intel Corporation. +** Contact: https://www.qt.io/licensing/ ** ** This file is part of the QtCore module of the Qt Toolkit. ** -** $QT_BEGIN_LICENSE:LGPL21$ +** $QT_BEGIN_LICENSE:LGPL$ ** 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. +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://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. +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. ** -** 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. +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or (at your option) the GNU General +** Public license version 3 or any later version approved by the KDE Free +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** 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-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. ** ** $QT_END_LICENSE$ ** @@ -147,29 +154,41 @@ static bool isParentOf(const String &parent, const QString &dirName) parent.size() == 1); } -static bool isPseudoFs(const QStorageIterator &it) -{ +static bool shouldIncludeFs(const QStorageIterator &it) +{ + /* + * This function implements a heuristic algorithm to determine whether a + * given mount should be reported to the user. Our objective is to list + * only entries that the end-user would find useful. + * + * We therefore ignore: + * - mounted in /dev, /proc, /sys: special mounts + * (this will catch /sys/fs/cgroup, /proc/sys/fs/binfmt_misc, /dev/pts, + * some of which are tmpfs on Linux) + * - mounted in /var/run or /var/lock: most likely pseudofs + * (on earlier systemd versions, /var/run was a bind-mount of /run, so + * everything would be unnecessarily duplicated) + * - filesystem type is "rootfs": artifact of the root-pivot on some Linux + * initrd + * - if the filesystem total size is zero, it's a pseudo-fs (not checked here). + */ + QString mountDir = it.rootPath(); if (isParentOf(QLatin1String("/dev"), mountDir) || isParentOf(QLatin1String("/proc"), mountDir) || isParentOf(QLatin1String("/sys"), mountDir) || isParentOf(QLatin1String("/var/run"), mountDir) || isParentOf(QLatin1String("/var/lock"), mountDir)) { - return true; + return false; } - QByteArray type = it.fileSystemType(); - if (type == "tmpfs") +#ifdef Q_OS_LINUX + if (it.fileSystemType() == "rootfs") return false; -#if defined(Q_OS_LINUX) - if (type == "rootfs" || type == "rpc_pipefs") - return true; #endif - if (!it.device().startsWith('/')) - return true; - - return false; + // size checking in mountedVolumes() + return true; } #if defined(Q_OS_BSD4) @@ -522,7 +541,7 @@ void QStorageInfoPrivate::retrieveVolumeInfo() valid = true; ready = true; -#if defined(Q_OS_BSD4) && !defined(Q_OS_NETBSD) +#if defined(Q_OS_INTEGRITY) || (defined(Q_OS_BSD4) && !defined(Q_OS_NETBSD)) bytesTotal = statfs_buf.f_blocks * statfs_buf.f_bsize; bytesFree = statfs_buf.f_bfree * statfs_buf.f_bsize; bytesAvailable = statfs_buf.f_bavail * statfs_buf.f_bsize; @@ -532,7 +551,7 @@ void QStorageInfoPrivate::retrieveVolumeInfo() bytesAvailable = statfs_buf.f_bavail * statfs_buf.f_frsize; #endif blockSize = statfs_buf.f_bsize; -#if defined(Q_OS_ANDROID) || defined (Q_OS_BSD4) +#if defined(Q_OS_ANDROID) || defined(Q_OS_BSD4) || defined(Q_OS_INTEGRITY) #if defined(_STATFS_F_FLAGS) readOnly = (statfs_buf.f_flags & ST_RDONLY) != 0; #endif @@ -551,11 +570,14 @@ QList<QStorageInfo> QStorageInfoPrivate::mountedVolumes() QList<QStorageInfo> volumes; while (it.next()) { - if (isPseudoFs(it)) + if (!shouldIncludeFs(it)) continue; const QString mountDir = it.rootPath(); - volumes.append(QStorageInfo(mountDir)); + QStorageInfo info(mountDir); + if (info.bytesTotal() == 0) + continue; + volumes.append(info); } return volumes; |