328ff6d979
Since especially Windows puts the eject functionality behind an icon in the systray which is usually hidden and doesn't complain if a USB drive is unplugged without ejecting it first ejecting such a device might not be obvious to everyone. Add a button to the main window allowing to eject the selected player. Currently only implemented for Windows. Change-Id: I785ac1482cda03a1379cf6d0fd0d9a0ff8130092
754 lines
24 KiB
C++
754 lines
24 KiB
C++
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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*
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* Copyright (C) 2007 by Dominik Wenger
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*
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* All files in this archive are subject to the GNU General Public License.
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* See the file COPYING in the source tree root for full license agreement.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include "utils.h"
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#include "rockboxinfo.h"
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#include "system.h"
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#include "rbsettings.h"
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#include "systeminfo.h"
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#ifdef UNICODE
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#define _UNICODE
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#endif
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#include <QtCore>
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#include <QDebug>
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#include <cstdlib>
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#include <stdio.h>
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#if defined(Q_OS_LINUX) || defined(Q_OS_MACX)
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#include <sys/statvfs.h>
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#endif
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#if defined(Q_OS_LINUX) || defined(Q_OS_MACX)
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#include <stdio.h>
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#endif
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#if defined(Q_OS_LINUX)
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#include <mntent.h>
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#endif
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#if defined(Q_OS_MACX) || defined(Q_OS_OPENBSD)
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#include <sys/param.h>
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#include <sys/ucred.h>
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#include <sys/mount.h>
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#endif
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#if defined(Q_OS_WIN32)
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#include <stdio.h>
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#include <tchar.h>
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#include <windows.h>
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#include <setupapi.h>
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#include <winioctl.h>
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#include <tlhelp32.h>
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#endif
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#if defined(Q_OS_MACX)
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#include <Carbon/Carbon.h>
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#include <CoreFoundation/CoreFoundation.h>
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#include <CoreServices/CoreServices.h>
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#include <IOKit/IOKitLib.h>
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#endif
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// recursive function to delete a dir with files
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bool Utils::recursiveRmdir( const QString &dirName )
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{
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QString dirN = dirName;
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QDir dir(dirN);
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// make list of entries in directory
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QStringList list = dir.entryList(QDir::AllEntries | QDir::NoDotAndDotDot);
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QFileInfo fileInfo;
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QString curItem, lstAt;
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for(int i = 0; i < list.size(); i++){ // loop through all items of list
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QString name = list.at(i);
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curItem = dirN + "/" + name;
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fileInfo.setFile(curItem);
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if(fileInfo.isDir()) // is directory
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recursiveRmdir(curItem); // call recRmdir() recursively for
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// deleting subdirectory
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else // is file
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QFile::remove(curItem); // ok, delete file
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}
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dir.cdUp();
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return dir.rmdir(dirN); // delete empty dir and return if (now empty)
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// dir-removing was successfull
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}
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//! @brief resolves the given path, ignoring case.
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//! @param path absolute path to resolve.
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//! @return returns exact casing of path, empty string if path not found.
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QString Utils::resolvePathCase(QString path)
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{
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int start;
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QString realpath;
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QStringList elems = path.split("/", QString::SkipEmptyParts);
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if(path.isEmpty())
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return QString();
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#if defined(Q_OS_WIN32)
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// on windows we must make sure to start with the first entry (i.e. the
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// drive letter) instead of a single / to make resolving work.
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start = 1;
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realpath = elems.at(0) + "/";
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#else
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start = 0;
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realpath = "/";
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#endif
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for(int i = start; i < elems.size(); i++) {
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QStringList direlems
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= QDir(realpath).entryList(QDir::AllEntries|QDir::Hidden|QDir::System);
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if(direlems.contains(elems.at(i), Qt::CaseInsensitive)) {
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// need to filter using QRegExp as QStringList::filter(QString)
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// matches any substring
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QString expr = QString("^" + elems.at(i) + "$");
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QRegExp rx = QRegExp(expr, Qt::CaseInsensitive);
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QStringList a = direlems.filter(rx);
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if(a.size() != 1)
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return QString("");
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if(!realpath.endsWith("/"))
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realpath += "/";
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realpath += a.at(0);
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}
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else
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return QString("");
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}
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qDebug() << "[Utils] resolving path" << path << "->" << realpath;
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return realpath;
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}
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QString Utils::filesystemName(QString path)
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{
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QString name;
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#if defined(Q_OS_WIN32)
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wchar_t volname[MAX_PATH+1];
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bool res = GetVolumeInformationW((LPTSTR)path.utf16(), volname, MAX_PATH+1,
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NULL, NULL, NULL, NULL, 0);
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if(res) {
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name = QString::fromWCharArray(volname);
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}
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#endif
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#if defined(Q_OS_MACX)
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// BSD label does not include folder.
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QString bsd = Utils::resolveDevicename(path).remove("/dev/");
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if(bsd.isEmpty()) {
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return name;
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}
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OSStatus result;
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ItemCount index = 1;
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do {
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FSVolumeRefNum volrefnum;
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HFSUniStr255 volname;
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result = FSGetVolumeInfo(kFSInvalidVolumeRefNum, index, &volrefnum,
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kFSVolInfoFSInfo, NULL, &volname, NULL);
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if(result == noErr) {
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GetVolParmsInfoBuffer volparms;
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HParamBlockRec hpb;
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hpb.ioParam.ioNamePtr = NULL;
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hpb.ioParam.ioVRefNum = volrefnum;
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hpb.ioParam.ioBuffer = (Ptr)&volparms;
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hpb.ioParam.ioReqCount = sizeof(volparms);
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if(PBHGetVolParmsSync(&hpb) == noErr) {
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if(volparms.vMServerAdr == 0) {
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if(bsd == (char*)volparms.vMDeviceID) {
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name = QString::fromUtf16((const ushort*)volname.unicode,
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(int)volname.length);
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break;
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}
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}
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}
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}
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index++;
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} while(result == noErr);
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#endif
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qDebug() << "[Utils] Volume name of" << path << "is" << name;
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return name;
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}
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//! @brief figure the free disk space on a filesystem
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//! @param path path on the filesystem to check
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//! @return size in bytes
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qulonglong Utils::filesystemFree(QString path)
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{
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qulonglong size = filesystemSize(path, FilesystemFree);
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qDebug() << "[Utils] free disk space for" << path << size;
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return size;
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}
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qulonglong Utils::filesystemTotal(QString path)
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{
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qulonglong size = filesystemSize(path, FilesystemTotal);
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qDebug() << "[Utils] total disk space for" << path << size;
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return size;
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}
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qulonglong Utils::filesystemClusterSize(QString path)
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{
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qulonglong size = filesystemSize(path, FilesystemClusterSize);
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qDebug() << "[Utils] cluster size for" << path << size;
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return size;
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}
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qulonglong Utils::filesystemSize(QString path, enum Utils::Size type)
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{
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qlonglong size = 0;
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#if defined(Q_OS_LINUX) || defined(Q_OS_MACX)
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// the usage of statfs() is deprecated by the LSB so use statvfs().
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struct statvfs fs;
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int ret;
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ret = statvfs(qPrintable(path), &fs);
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if(ret == 0) {
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if(type == FilesystemFree) {
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size = (qulonglong)fs.f_frsize * (qulonglong)fs.f_bavail;
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}
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if(type == FilesystemTotal) {
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size = (qulonglong)fs.f_frsize * (qulonglong)fs.f_blocks;
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}
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if(type == FilesystemClusterSize) {
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size = (qulonglong)fs.f_frsize;
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}
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}
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#endif
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#if defined(Q_OS_WIN32)
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BOOL ret;
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ULARGE_INTEGER freeAvailBytes;
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ULARGE_INTEGER totalNumberBytes;
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ret = GetDiskFreeSpaceExW((LPCTSTR)path.utf16(), &freeAvailBytes,
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&totalNumberBytes, NULL);
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if(ret) {
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if(type == FilesystemFree) {
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size = freeAvailBytes.QuadPart;
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}
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if(type == FilesystemTotal) {
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size = totalNumberBytes.QuadPart;
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}
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if(type == FilesystemClusterSize) {
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DWORD sectorsPerCluster;
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DWORD bytesPerSector;
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DWORD freeClusters;
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DWORD totalClusters;
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ret = GetDiskFreeSpaceW((LPCTSTR)path.utf16(), §orsPerCluster,
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&bytesPerSector, &freeClusters, &totalClusters);
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if(ret) {
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size = bytesPerSector * sectorsPerCluster;
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}
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}
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}
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#endif
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return size;
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}
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//! \brief searches for a Executable in the Environement Path
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QString Utils::findExecutable(QString name)
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{
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QString exepath;
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//try autodetect tts
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#if defined(Q_OS_LINUX) || defined(Q_OS_MACX) || defined(Q_OS_OPENBSD)
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QStringList path = QString(getenv("PATH")).split(":", QString::SkipEmptyParts);
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#elif defined(Q_OS_WIN)
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QStringList path = QString(getenv("PATH")).split(";", QString::SkipEmptyParts);
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#endif
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qDebug() << "[Utils] system path:" << path;
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for(int i = 0; i < path.size(); i++)
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{
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QString executable = QDir::fromNativeSeparators(path.at(i)) + "/" + name;
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#if defined(Q_OS_WIN)
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executable += ".exe";
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QStringList ex = executable.split("\"", QString::SkipEmptyParts);
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executable = ex.join("");
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#endif
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if(QFileInfo(executable).isExecutable())
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{
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qDebug() << "[Utils] findExecutable: found" << executable;
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return QDir::toNativeSeparators(executable);
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}
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}
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qDebug() << "[Utils] findExecutable: could not find" << name;
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return "";
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}
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/** @brief checks different Enviroment things. Ask if user wants to continue.
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* @param permission if it should check for permission
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* @return string with error messages if problems occurred, empty strings if none.
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*/
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QString Utils::checkEnvironment(bool permission)
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{
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qDebug() << "[Utils] checking environment";
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QString text = "";
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// check permission
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if(permission)
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{
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#if defined(Q_OS_WIN32)
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if(System::userPermissions() != System::ADMIN)
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{
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text += tr("<li>Permissions insufficient for bootloader "
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"installation.\nAdministrator priviledges are necessary.</li>");
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}
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#endif
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}
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// Check TargetId
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RockboxInfo rbinfo(RbSettings::value(RbSettings::Mountpoint).toString());
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QString installed = rbinfo.target();
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if(!installed.isEmpty() && installed !=
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SystemInfo::value(SystemInfo::CurConfigureModel).toString())
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{
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text += tr("<li>Target mismatch detected.<br/>"
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"Installed target: %1<br/>Selected target: %2.</li>")
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.arg(SystemInfo::platformValue(installed, SystemInfo::CurPlatformName).toString(),
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SystemInfo::value(SystemInfo::CurPlatformName).toString());
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}
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if(!text.isEmpty())
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return tr("Problem detected:") + "<ul>" + text + "</ul>";
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else
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return text;
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}
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/** @brief Compare two version strings.
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* @param s1 first version string
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* @param s2 second version string
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* @return 0 if strings identical, 1 if second is newer, -1 if first.
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*/
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int Utils::compareVersionStrings(QString s1, QString s2)
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{
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qDebug() << "[Utils] comparing version strings" << s1 << "and" << s2;
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QString a = s1.trimmed();
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QString b = s2.trimmed();
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// if strings are identical return 0.
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if(a.isEmpty())
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return 1;
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if(b.isEmpty())
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return -1;
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while(!a.isEmpty() || !b.isEmpty()) {
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// trim all leading non-digits and non-dots (dots are removed afterwards)
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a.remove(QRegExp("^[^\\d\\.]*"));
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b.remove(QRegExp("^[^\\d\\.]*"));
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// trim all trailing non-digits for conversion (QString::toInt()
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// requires this). Copy strings first as replace() changes the string.
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QString numa = a;
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QString numb = b;
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numa.remove(QRegExp("\\D+.*$"));
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numb.remove(QRegExp("\\D+.*$"));
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// convert to number
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bool ok1, ok2;
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int vala = numa.toUInt(&ok1);
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int valb = numb.toUInt(&ok2);
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// if none of the numbers converted successfully we're at trailing garbage.
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if(!ok1 && !ok2)
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break;
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if(!ok1)
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return 1;
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if(!ok2)
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return -1;
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// if numbers mismatch we have a decision.
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if(vala != valb)
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return (vala > valb) ? -1 : 1;
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// trim leading digits.
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a.remove(QRegExp("^\\d*"));
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b.remove(QRegExp("^\\d*"));
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// If only one of the following characters is a dot that one is
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// "greater" then anything else. Make sure it's followed by a number,
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// Otherwise it might be the end of the string or suffix. Do this
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// before version addon characters check to avoid stopping too early.
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bool adot = a.contains(QRegExp("^[a-zA-Z]*\\.[0-9]"));
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bool bdot = b.contains(QRegExp("^[a-zA-Z]*\\.[0-9]"));
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if(adot && !bdot)
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return -1;
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if(!adot && bdot)
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return 1;
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// if number is immediately followed by a character consider it as
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// version addon (like 1.2.3b). In this case compare characters and end
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// (version numbers like 1.2b.3 aren't handled).
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QChar ltra;
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QChar ltrb;
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if(a.contains(QRegExp("^[a-zA-Z]")))
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ltra = a.at(0);
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if(b.contains(QRegExp("^[a-zA-Z]")))
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ltrb = b.at(0);
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if(ltra != ltrb)
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return (ltra < ltrb) ? 1 : -1;
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// both are identical or no addon characters, ignore.
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// remove modifiers and following dot.
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a.remove(QRegExp("^[a-zA-Z]*\\."));
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b.remove(QRegExp("^[a-zA-Z]*\\."));
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}
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// no differences found.
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return 0;
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}
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/** Resolve mountpoint to devicename / disk number
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* @param path mountpoint path / drive letter
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* @return devicename / disk number
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*/
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QString Utils::resolveDevicename(QString path)
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{
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qDebug() << "[Utils] resolving device name" << path;
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#if defined(Q_OS_LINUX)
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FILE *mn = setmntent("/etc/mtab", "r");
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if(!mn)
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return QString("");
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struct mntent *ent;
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while((ent = getmntent(mn))) {
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// check for valid filesystem type.
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// Linux can handle hfs (and hfsplus), so consider it a valid file
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// system. Otherwise resolving the device name would fail, which in
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// turn would make it impossible to warn about a MacPod.
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if(QString(ent->mnt_dir) == path
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&& (QString(ent->mnt_type).contains("vfat", Qt::CaseInsensitive)
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|| QString(ent->mnt_type).contains("hfs", Qt::CaseInsensitive))) {
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endmntent(mn);
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qDebug() << "[Utils] device name is" << ent->mnt_fsname;
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return QString(ent->mnt_fsname);
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}
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}
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endmntent(mn);
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#endif
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#if defined(Q_OS_MACX) || defined(Q_OS_OPENBSD)
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int num;
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struct statfs *mntinf;
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num = getmntinfo(&mntinf, MNT_WAIT);
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while(num--) {
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// check for valid filesystem type. OS X can handle hfs (hfs+ is
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// treated as hfs), BSD should be the same.
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if(QString(mntinf->f_mntonname) == path
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&& (QString(mntinf->f_fstypename).contains("msdos", Qt::CaseInsensitive)
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|| QString(mntinf->f_fstypename).contains("hfs", Qt::CaseInsensitive))) {
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qDebug() << "[Utils] device name is" << mntinf->f_mntfromname;
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return QString(mntinf->f_mntfromname);
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}
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mntinf++;
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}
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#endif
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#if defined(Q_OS_WIN32)
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DWORD written;
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HANDLE h;
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TCHAR uncpath[MAX_PATH];
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UCHAR buffer[0x400];
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PVOLUME_DISK_EXTENTS extents = (PVOLUME_DISK_EXTENTS)buffer;
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_stprintf(uncpath, _TEXT("\\\\.\\%c:"), path.toAscii().at(0));
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h = CreateFile(uncpath, GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE,
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NULL, OPEN_EXISTING, 0, NULL);
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if(h == INVALID_HANDLE_VALUE) {
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//qDebug() << "error getting extents for" << uncpath;
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return "";
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}
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// get the extents
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if(DeviceIoControl(h, IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS,
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NULL, 0, extents, sizeof(buffer), &written, NULL)) {
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if(extents->NumberOfDiskExtents > 1) {
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qDebug() << "[Utils] resolving device name: volume spans multiple disks!";
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return "";
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}
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qDebug() << "[Utils] device name is" << extents->Extents[0].DiskNumber;
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return QString("%1").arg(extents->Extents[0].DiskNumber);
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}
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#endif
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return QString("");
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}
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/** resolve device name to mount point / drive letter
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* @param device device name / disk number
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* @return mount point / drive letter
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*/
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QString Utils::resolveMountPoint(QString device)
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{
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qDebug() << "[Utils] resolving mountpoint:" << device;
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#if defined(Q_OS_LINUX)
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FILE *mn = setmntent("/etc/mtab", "r");
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if(!mn)
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return QString("");
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struct mntent *ent;
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while((ent = getmntent(mn))) {
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// Check for valid filesystem. Allow hfs too, as an Ipod might be a
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// MacPod.
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if(QString(ent->mnt_fsname) == device) {
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QString result;
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if(QString(ent->mnt_type).contains("vfat", Qt::CaseInsensitive)
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|| QString(ent->mnt_type).contains("hfs", Qt::CaseInsensitive)) {
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qDebug() << "[Utils] resolved mountpoint is:" << ent->mnt_dir;
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result = QString(ent->mnt_dir);
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}
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else {
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qDebug() << "[Utils] mountpoint is wrong filesystem!";
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}
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endmntent(mn);
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return result;
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}
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}
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endmntent(mn);
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|
|
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#endif
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|
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#if defined(Q_OS_MACX) || defined(Q_OS_OPENBSD)
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int num;
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struct statfs *mntinf;
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num = getmntinfo(&mntinf, MNT_WAIT);
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while(num--) {
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// Check for valid filesystem. Allow hfs too, as an Ipod might be a
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// MacPod.
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if(QString(mntinf->f_mntfromname) == device) {
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if(QString(mntinf->f_fstypename).contains("msdos", Qt::CaseInsensitive)
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|| QString(mntinf->f_fstypename).contains("hfs", Qt::CaseInsensitive)) {
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qDebug() << "[Utils] resolved mountpoint is:" << mntinf->f_mntonname;
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return QString(mntinf->f_mntonname);
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}
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|
else {
|
|
qDebug() << "[Utils] mountpoint is wrong filesystem!";
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|
return QString();
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|
}
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|
}
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|
mntinf++;
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}
|
|
#endif
|
|
|
|
#if defined(Q_OS_WIN32)
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QString result;
|
|
unsigned int driveno = device.replace(QRegExp("^.*([0-9]+)"), "\\1").toInt();
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|
|
|
int letter;
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|
for(letter = 'A'; letter <= 'Z'; letter++) {
|
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if(resolveDevicename(QString(letter)).toUInt() == driveno) {
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result = letter;
|
|
qDebug() << "[Utils] resolved mountpoint is:" << result;
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|
break;
|
|
}
|
|
}
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|
if(!result.isEmpty())
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|
return result + ":/";
|
|
#endif
|
|
qDebug() << "[Utils] resolving mountpoint failed!";
|
|
return QString("");
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|
}
|
|
|
|
|
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QStringList Utils::mountpoints()
|
|
{
|
|
QStringList tempList;
|
|
#if defined(Q_OS_WIN32)
|
|
QFileInfoList list = QDir::drives();
|
|
for(int i=0; i<list.size();i++)
|
|
{
|
|
tempList << list.at(i).absolutePath();
|
|
qDebug() << "[Utils] Mounted on" << list.at(i).absolutePath();
|
|
}
|
|
|
|
#elif defined(Q_OS_MACX) || defined(Q_OS_OPENBSD)
|
|
int num;
|
|
struct statfs *mntinf;
|
|
|
|
num = getmntinfo(&mntinf, MNT_WAIT);
|
|
while(num--) {
|
|
tempList << QString(mntinf->f_mntonname);
|
|
qDebug() << "[Utils] Mounted on" << mntinf->f_mntonname
|
|
<< "is" << mntinf->f_mntfromname << "type" << mntinf->f_fstypename;
|
|
mntinf++;
|
|
}
|
|
#elif defined(Q_OS_LINUX)
|
|
|
|
FILE *mn = setmntent("/etc/mtab", "r");
|
|
if(!mn)
|
|
return QStringList("");
|
|
|
|
struct mntent *ent;
|
|
while((ent = getmntent(mn))) {
|
|
tempList << QString(ent->mnt_dir);
|
|
qDebug() << "[Utils] Mounted on" << ent->mnt_dir
|
|
<< "is" << ent->mnt_fsname << "type" << ent->mnt_type;
|
|
}
|
|
endmntent(mn);
|
|
|
|
#else
|
|
#error Unknown Platform
|
|
#endif
|
|
return tempList;
|
|
}
|
|
|
|
|
|
/** Check if a process with a given name is running
|
|
* @param names list of names to check
|
|
* @return list of detected processes.
|
|
*/
|
|
QStringList Utils::findRunningProcess(QStringList names)
|
|
{
|
|
QStringList processlist;
|
|
QStringList found;
|
|
#if defined(Q_OS_WIN32)
|
|
HANDLE hdl;
|
|
PROCESSENTRY32 entry;
|
|
bool result;
|
|
|
|
hdl = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
|
|
if(hdl == INVALID_HANDLE_VALUE) {
|
|
qDebug() << "[Utils] CreateToolhelp32Snapshot failed.";
|
|
return found;
|
|
}
|
|
entry.dwSize = sizeof(PROCESSENTRY32);
|
|
entry.szExeFile[0] = '\0';
|
|
if(!Process32First(hdl, &entry)) {
|
|
qDebug() << "[Utils] Process32First failed.";
|
|
return found;
|
|
}
|
|
|
|
processlist.append(QString::fromWCharArray(entry.szExeFile));
|
|
do {
|
|
entry.dwSize = sizeof(PROCESSENTRY32);
|
|
entry.szExeFile[0] = '\0';
|
|
result = Process32Next(hdl, &entry);
|
|
if(result) {
|
|
processlist.append(QString::fromWCharArray(entry.szExeFile));
|
|
}
|
|
} while(result);
|
|
CloseHandle(hdl);
|
|
#endif
|
|
#if defined(Q_OS_MACX)
|
|
ProcessSerialNumber psn = { 0, kNoProcess };
|
|
OSErr err;
|
|
do {
|
|
pid_t pid;
|
|
err = GetNextProcess(&psn);
|
|
err = GetProcessPID(&psn, &pid);
|
|
if(err == noErr) {
|
|
char buf[32] = {0};
|
|
ProcessInfoRec info;
|
|
memset(&info, 0, sizeof(ProcessInfoRec));
|
|
info.processName = (unsigned char*)buf;
|
|
info.processInfoLength = sizeof(ProcessInfoRec);
|
|
err = GetProcessInformation(&psn, &info);
|
|
if(err == noErr) {
|
|
// some processes start with nonprintable characters. Skip those.
|
|
int i;
|
|
for(i = 0; i < 32; i++) {
|
|
if(isprint(buf[i])) break;
|
|
}
|
|
// avoid adding duplicates.
|
|
QString process = QString::fromUtf8(&buf[i]);
|
|
if(!processlist.contains(process)) {
|
|
processlist.append(process);
|
|
}
|
|
|
|
}
|
|
}
|
|
} while(err == noErr);
|
|
#endif
|
|
// check for given names in list of processes
|
|
for(int i = 0; i < names.size(); ++i) {
|
|
#if defined(Q_OS_WIN32)
|
|
// the process name might be truncated. Allow the extension to be partial.
|
|
int index = processlist.indexOf(QRegExp(names.at(i) + "(\\.(e(x(e?)?)?)?)?"));
|
|
#else
|
|
int index = processlist.indexOf(names.at(i));
|
|
#endif
|
|
if(index != -1) {
|
|
found.append(processlist.at(index));
|
|
}
|
|
}
|
|
qDebug() << "[Utils] Found listed processes running:" << found;
|
|
return found;
|
|
}
|
|
|
|
|
|
/** Eject device from PC.
|
|
* Request the OS to eject the player.
|
|
* @param device mountpoint of the device
|
|
* @return true on success, fals otherwise.
|
|
*/
|
|
bool Utils::ejectDevice(QString device)
|
|
{
|
|
#if defined(Q_OS_WIN32)
|
|
/* See http://support.microsoft.com/kb/165721 on the procedure to eject a
|
|
* device. */
|
|
bool success = false;
|
|
int i;
|
|
HANDLE hdl;
|
|
DWORD bytesReturned;
|
|
TCHAR volume[8];
|
|
|
|
/* CreateFile */
|
|
_stprintf(volume, _TEXT("\\\\.\\%c:"), device.toAscii().at(0));
|
|
hdl = CreateFile(volume, GENERIC_READ | GENERIC_WRITE,
|
|
FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
|
|
OPEN_EXISTING, 0, NULL);
|
|
if(hdl == INVALID_HANDLE_VALUE)
|
|
return false;
|
|
|
|
/* lock volume to make sure no other application is accessing the volume.
|
|
* Try up to 10 times. */
|
|
for(i = 0; i < 10; i++) {
|
|
if(DeviceIoControl(hdl, FSCTL_LOCK_VOLUME,
|
|
NULL, 0, NULL, 0, &bytesReturned, NULL))
|
|
break;
|
|
/* short break before retry */
|
|
Sleep(100);
|
|
}
|
|
if(i < 10) {
|
|
/* successfully locked, now dismount */
|
|
if(DeviceIoControl(hdl, FSCTL_DISMOUNT_VOLUME,
|
|
NULL, 0, NULL, 0, &bytesReturned, NULL)) {
|
|
/* make sure media can be removed. */
|
|
PREVENT_MEDIA_REMOVAL pmr;
|
|
pmr.PreventMediaRemoval = false;
|
|
if(DeviceIoControl(hdl, IOCTL_STORAGE_MEDIA_REMOVAL,
|
|
&pmr, sizeof(PREVENT_MEDIA_REMOVAL),
|
|
NULL, 0, &bytesReturned, NULL)) {
|
|
/* eject the media */
|
|
if(DeviceIoControl(hdl, IOCTL_STORAGE_EJECT_MEDIA,
|
|
NULL, 0, NULL, 0, &bytesReturned, NULL))
|
|
success = true;
|
|
}
|
|
}
|
|
}
|
|
/* close handle */
|
|
CloseHandle(hdl);
|
|
return success;
|
|
|
|
#endif
|
|
return false;
|
|
}
|
|
|