591 lines
15 KiB
C++
591 lines
15 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// MuldeR's Utilities for Qt
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// Copyright (C) 2004-2015 LoRd_MuldeR <MuldeR2@GMX.de>
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2.1 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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//
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// http://www.gnu.org/licenses/lgpl-2.1.txt
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//////////////////////////////////////////////////////////////////////////////////
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#if _MSC_VER
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#define _CRT_RAND_S 1
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#endif
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//MUtils
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#include <MUtils/Global.h>
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#include <MUtils/OSSupport.h>
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//Internal
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#include "DirLocker.h"
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#include "3rd_party/strnatcmp/include/strnatcmp.h"
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//Qt
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#include <QDir>
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#include <QReadWriteLock>
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#include <QProcess>
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#include <QTextCodec>
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//CRT
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#include <cstdlib>
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#include <ctime>
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#include <process.h>
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//VLD
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#ifdef _MSC_VER
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#include <vld.h>
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#endif
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///////////////////////////////////////////////////////////////////////////////
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// Random Support
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///////////////////////////////////////////////////////////////////////////////
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//Robert Jenkins' 96 bit Mix Function
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static unsigned int mix_function(const unsigned int x, const unsigned int y, const unsigned int z)
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{
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unsigned int a = x;
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unsigned int b = y;
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unsigned int c = z;
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a=a-b; a=a-c; a=a^(c >> 13);
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b=b-c; b=b-a; b=b^(a << 8 );
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c=c-a; c=c-b; c=c^(b >> 13);
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a=a-b; a=a-c; a=a^(c >> 12);
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b=b-c; b=b-a; b=b^(a << 16);
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c=c-a; c=c-b; c=c^(b >> 5 );
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a=a-b; a=a-c; a=a^(c >> 3 );
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b=b-c; b=b-a; b=b^(a << 10);
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c=c-a; c=c-b; c=c^(b >> 15);
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return a ^ b ^ c;
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}
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void MUtils::seed_rand(void)
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{
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qsrand(mix_function(clock(), time(NULL), _getpid()));
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}
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quint32 MUtils::next_rand32(void)
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{
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quint32 rnd = 0xDEADBEEF;
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#ifdef _CRT_RAND_S
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if(rand_s(&rnd) == 0)
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{
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return rnd;
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}
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#endif //_CRT_RAND_S
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for(size_t i = 0; i < sizeof(quint32); i++)
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{
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rnd = (rnd << 8) ^ qrand();
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}
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return rnd;
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}
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quint64 MUtils::next_rand64(void)
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{
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return (quint64(next_rand32()) << 32) | quint64(next_rand32());
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}
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QString MUtils::rand_str(const bool &bLong)
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{
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if(!bLong)
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{
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return QString::number(next_rand64(), 16).rightJustified(16, QLatin1Char('0'));
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}
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return QString("%1%2").arg(rand_str(false), rand_str(false));
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}
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///////////////////////////////////////////////////////////////////////////////
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// GET TEMP FILE NAME
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///////////////////////////////////////////////////////////////////////////////
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QString MUtils::make_temp_file(const QString &basePath, const QString &extension, const bool placeholder)
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{
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for(int i = 0; i < 4096; i++)
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{
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const QString tempFileName = QString("%1/%2.%3").arg(basePath, rand_str(), extension);
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if(!QFileInfo(tempFileName).exists())
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{
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if(placeholder)
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{
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QFile file(tempFileName);
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if(file.open(QFile::ReadWrite))
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{
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file.close();
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return tempFileName;
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}
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}
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else
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{
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return tempFileName;
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}
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}
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}
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qWarning("Failed to generate unique temp file name!");
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return QString();
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}
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///////////////////////////////////////////////////////////////////////////////
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// COMPUTE PARITY
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///////////////////////////////////////////////////////////////////////////////
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/*
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* Compute parity in parallel
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* http://www.graphics.stanford.edu/~seander/bithacks.html#ParityParallel
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*/
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bool MUtils::parity(quint32 value)
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{
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value ^= value >> 16;
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value ^= value >> 8;
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value ^= value >> 4;
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value &= 0xf;
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return ((0x6996 >> value) & 1) != 0;
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}
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///////////////////////////////////////////////////////////////////////////////
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// TEMP FOLDER
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///////////////////////////////////////////////////////////////////////////////
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static QScopedPointer<MUtils::Internal::DirLock> g_temp_folder_file;
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static QReadWriteLock g_temp_folder_lock;
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static QString try_create_subfolder(const QString &baseDir, const QString &postfix)
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{
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const QString baseDirPath = QDir(baseDir).absolutePath();
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for(int i = 0; i < 32; i++)
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{
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QDir directory(baseDirPath);
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if(directory.mkpath(postfix) && directory.cd(postfix))
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{
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return directory.canonicalPath();
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}
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}
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return QString();
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}
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static MUtils::Internal::DirLock *try_init_temp_folder(const QString &baseDir)
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{
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const QString tempPath = try_create_subfolder(baseDir, MUtils::rand_str());
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if(!tempPath.isEmpty())
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{
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for(int i = 0; i < 32; i++)
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{
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MUtils::Internal::DirLock *lockFile = NULL;
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try
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{
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lockFile = new MUtils::Internal::DirLock(tempPath);
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return lockFile;
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}
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catch(MUtils::Internal::DirLockException&)
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{
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/*ignore error and try again*/
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}
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}
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}
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return NULL;
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}
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static bool temp_folder_cleanup_helper(const QString &tempPath)
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{
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size_t delay = 1;
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static const size_t MAX_DELAY = 8192;
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forever
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{
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QDir::setCurrent(QDir::rootPath());
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if(MUtils::remove_directory(tempPath, true))
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{
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return true;
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}
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else
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{
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if(delay > MAX_DELAY)
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{
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return false;
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}
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MUtils::OS::sleep_ms(delay);
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delay *= 2;
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}
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}
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}
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static void temp_folder_cleaup(void)
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{
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QWriteLocker writeLock(&g_temp_folder_lock);
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//Clean the directory
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while(!g_temp_folder_file.isNull())
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{
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const QString tempPath = g_temp_folder_file->getPath();
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g_temp_folder_file.reset(NULL);
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if(!temp_folder_cleanup_helper(tempPath))
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{
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MUtils::OS::system_message_wrn(L"Temp Cleaner", L"Warning: Not all temporary files could be removed!");
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}
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}
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}
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const QString &MUtils::temp_folder(void)
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{
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QReadLocker readLock(&g_temp_folder_lock);
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//Already initialized?
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if(!g_temp_folder_file.isNull())
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{
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return g_temp_folder_file->getPath();
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}
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//Obtain the write lock to initilaize
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readLock.unlock();
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QWriteLocker writeLock(&g_temp_folder_lock);
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//Still uninitilaized?
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if(!g_temp_folder_file.isNull())
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{
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return g_temp_folder_file->getPath();
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}
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//Try the %TMP% or %TEMP% directory first
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if(MUtils::Internal::DirLock *lockFile = try_init_temp_folder(QDir::tempPath()))
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{
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g_temp_folder_file.reset(lockFile);
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atexit(temp_folder_cleaup);
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return lockFile->getPath();
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}
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qWarning("%%TEMP%% directory not found -> trying fallback mode now!");
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static const OS::known_folder_t FOLDER_ID[2] = { OS::FOLDER_LOCALAPPDATA, OS::FOLDER_SYSTROOT_DIR };
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for(size_t id = 0; id < 2; id++)
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{
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const QString &knownFolder = OS::known_folder(FOLDER_ID[id]);
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if(!knownFolder.isEmpty())
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{
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const QString tempRoot = try_create_subfolder(knownFolder, QLatin1String("TEMP"));
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if(!tempRoot.isEmpty())
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{
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if(MUtils::Internal::DirLock *lockFile = try_init_temp_folder(tempRoot))
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{
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g_temp_folder_file.reset(lockFile);
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atexit(temp_folder_cleaup);
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return lockFile->getPath();
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}
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}
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}
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}
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qFatal("Temporary directory could not be initialized !!!");
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return (*((QString*)NULL));
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}
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///////////////////////////////////////////////////////////////////////////////
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// REMOVE DIRECTORY / FILE
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///////////////////////////////////////////////////////////////////////////////
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static const QFile::Permissions FILE_PERMISSIONS_NONE = QFile::ReadOther | QFile::WriteOther;
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bool MUtils::remove_file(const QString &fileName)
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{
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QFileInfo fileInfo(fileName);
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if(!(fileInfo.exists() && fileInfo.isFile()))
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{
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return true;
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}
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for(int i = 0; i < 32; i++)
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{
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QFile file(fileName);
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file.setPermissions(FILE_PERMISSIONS_NONE);
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if((!(fileInfo.exists() && fileInfo.isFile())) || file.remove())
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{
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return true;
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}
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fileInfo.refresh();
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}
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qWarning("Could not delete \"%s\"", MUTILS_UTF8(fileName));
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return false;
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}
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static bool remove_directory_helper(const QDir &folder)
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{
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if(!folder.exists())
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{
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return true;
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}
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const QString dirName = folder.dirName();
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if(!dirName.isEmpty())
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{
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QDir parent(folder);
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if(parent.cdUp())
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{
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QFile::setPermissions(folder.absolutePath(), FILE_PERMISSIONS_NONE);
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if(parent.rmdir(dirName))
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{
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return true;
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}
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}
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}
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return false;
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}
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bool MUtils::remove_directory(const QString &folderPath, const bool &recursive)
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{
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QDir folder(folderPath);
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if(!folder.exists())
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{
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return true;
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}
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if(recursive)
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{
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const QFileInfoList entryList = folder.entryInfoList(QDir::AllEntries | QDir::NoDotAndDotDot | QDir::Hidden);
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for(QFileInfoList::ConstIterator iter = entryList.constBegin(); iter != entryList.constEnd(); iter++)
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{
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if(iter->isDir())
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{
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remove_directory(iter->canonicalFilePath(), true);
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}
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else if(iter->isFile())
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{
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remove_file(iter->canonicalFilePath());
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}
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}
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}
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for(int i = 0; i < 32; i++)
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{
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if(remove_directory_helper(folder))
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{
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return true;
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}
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folder.refresh();
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}
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qWarning("Could not rmdir \"%s\"", MUTILS_UTF8(folderPath));
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return false;
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}
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///////////////////////////////////////////////////////////////////////////////
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// PROCESS UTILS
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///////////////////////////////////////////////////////////////////////////////
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void MUtils::init_process(QProcess &process, const QString &wokringDir, const bool bReplaceTempDir)
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{
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//Environment variable names
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static const char *const s_envvar_names_temp[] =
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{
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"TEMP", "TMP", "TMPDIR", "HOME", "USERPROFILE", "HOMEPATH", NULL
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};
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static const char *const s_envvar_names_remove[] =
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{
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"WGETRC", "SYSTEM_WGETRC", "HTTP_PROXY", "FTP_PROXY", "NO_PROXY", "GNUPGHOME", "LC_ALL", "LC_COLLATE", "LC_CTYPE", "LC_MESSAGES", "LC_MONETARY", "LC_NUMERIC", "LC_TIME", "LANG", NULL
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};
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//Initialize environment
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QProcessEnvironment env = process.processEnvironment();
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if(env.isEmpty()) env = QProcessEnvironment::systemEnvironment();
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//Clean a number of enviroment variables that might affect our tools
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for(size_t i = 0; s_envvar_names_remove[i]; i++)
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{
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env.remove(QString::fromLatin1(s_envvar_names_remove[i]));
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env.remove(QString::fromLatin1(s_envvar_names_remove[i]).toLower());
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}
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const QString tempDir = QDir::toNativeSeparators(temp_folder());
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//Replace TEMP directory in environment
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if(bReplaceTempDir)
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{
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for(size_t i = 0; s_envvar_names_temp[i]; i++)
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{
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env.insert(s_envvar_names_temp[i], tempDir);
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}
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}
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//Setup PATH variable
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const QString path = env.value("PATH", QString()).trimmed();
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env.insert("PATH", path.isEmpty() ? tempDir : QString("%1;%2").arg(tempDir, path));
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//Setup QPorcess object
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process.setWorkingDirectory(wokringDir);
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process.setProcessChannelMode(QProcess::MergedChannels);
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process.setReadChannel(QProcess::StandardOutput);
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process.setProcessEnvironment(env);
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}
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///////////////////////////////////////////////////////////////////////////////
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// NATURAL ORDER STRING COMPARISON
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///////////////////////////////////////////////////////////////////////////////
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static bool natural_string_sort_helper(const QString &str1, const QString &str2)
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{
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return (MUtils::Internal::NaturalSort::strnatcmp(MUTILS_WCHR(str1), MUTILS_WCHR(str2)) < 0);
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}
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static bool natural_string_sort_helper_fold_case(const QString &str1, const QString &str2)
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{
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return (MUtils::Internal::NaturalSort::strnatcasecmp(MUTILS_WCHR(str1), MUTILS_WCHR(str2)) < 0);
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}
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void MUtils::natural_string_sort(QStringList &list, const bool bIgnoreCase)
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{
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qSort(list.begin(), list.end(), bIgnoreCase ? natural_string_sort_helper_fold_case : natural_string_sort_helper);
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}
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///////////////////////////////////////////////////////////////////////////////
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// CLEAN FILE PATH
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///////////////////////////////////////////////////////////////////////////////
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static const struct
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{
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const char *const search;
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const char *const replace;
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}
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CLEAN_FILE_NAME[] =
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{
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{ "\\", "-" },
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{ " / ", ", " },
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{ "/", "," },
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{ ":", "-" },
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{ "*", "x" },
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{ "?", "!" },
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{ "<", "[" },
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{ ">", "]" },
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{ "|", "!" },
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{ "\"", "'" },
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{ NULL, NULL }
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};
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QString MUtils::clean_file_name(const QString &name)
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{
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QRegExp regExp("\"(.+)\"");
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regExp.setMinimal(true);
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QString str = QString(name).replace(regExp, "``\\1<EFBFBD><EFBFBD>").trimmed();
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for(size_t i = 0; CLEAN_FILE_NAME[i].search; i++)
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{
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str.replace(CLEAN_FILE_NAME[i].search, CLEAN_FILE_NAME[i].replace);
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}
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while(str.endsWith(QLatin1Char('.')))
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{
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str.chop(1);
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str = str.trimmed();
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}
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return str.trimmed();
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}
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QString MUtils::clean_file_path(const QString &path)
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{
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const bool root = path.startsWith(QLatin1Char('/')) || path.startsWith(QLatin1Char('\\'));
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QStringList parts = QDir::fromNativeSeparators(path.trimmed()).split(QLatin1Char('/'), QString::SkipEmptyParts);
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for(int i = 0; i < parts.count(); i++)
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{
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if((i == 0) && (!root) && (parts[i].length() == 2) && parts[i][0].isLetter() && (parts[i][1] == QLatin1Char(':')))
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{
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continue; //handle case "c:\"
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}
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parts[i] = MUtils::clean_file_name(parts[i]);
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}
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return root ? parts.join(QLatin1String("/")).prepend(QLatin1Char('/')) : parts.join(QLatin1String("/"));
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}
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///////////////////////////////////////////////////////////////////////////////
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// REGULAR EXPESSION HELPER
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///////////////////////////////////////////////////////////////////////////////
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bool MUtils::regexp_parse_uint32(const QRegExp ®exp, quint32 &value)
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{
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return regexp_parse_uint32(regexp, &value, 1);
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}
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bool MUtils::regexp_parse_uint32(const QRegExp ®exp, quint32 *values, const size_t &count)
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{
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const QStringList caps = regexp.capturedTexts();
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if(caps.isEmpty() || (quint32(caps.count()) <= count))
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{
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return false;
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}
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for(size_t i = 0; i < count; i++)
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{
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bool ok = false;
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values[i] = caps[i+1].toUInt(&ok);
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if(!ok)
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{
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return false;
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}
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}
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return true;
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}
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///////////////////////////////////////////////////////////////////////////////
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// AVAILABLE CODEPAGES
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///////////////////////////////////////////////////////////////////////////////
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QStringList MUtils::available_codepages(const bool &noAliases)
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{
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QStringList codecList;
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QList<QByteArray> availableCodecs = QTextCodec::availableCodecs();
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||
while(!availableCodecs.isEmpty())
|
||
{
|
||
const QByteArray current = availableCodecs.takeFirst();
|
||
if(!current.toLower().startsWith("system"))
|
||
{
|
||
codecList << QString::fromLatin1(current.constData(), current.size());
|
||
if(noAliases)
|
||
{
|
||
if(QTextCodec *const currentCodec = QTextCodec::codecForName(current.constData()))
|
||
{
|
||
const QList<QByteArray> aliases = currentCodec->aliases();
|
||
for(QList<QByteArray>::ConstIterator iter = aliases.constBegin(); iter != aliases.constEnd(); iter++)
|
||
{
|
||
availableCodecs.removeAll(*iter);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
return codecList;
|
||
}
|
||
|
||
///////////////////////////////////////////////////////////////////////////////
|
||
// SELF-TEST
|
||
///////////////////////////////////////////////////////////////////////////////
|
||
|
||
int MUtils::Internal::selfTest(const char *const buildKey, const bool debug)
|
||
{
|
||
static const bool MY_DEBUG_FLAG = MUTILS_DEBUG;
|
||
static const char *const MY_BUILD_KEY = __DATE__ "@" __TIME__;
|
||
|
||
if(strncmp(buildKey, MY_BUILD_KEY, 13) || (MY_DEBUG_FLAG != debug))
|
||
{
|
||
MUtils::OS::system_message_err(L"MUtils", L"FATAL ERROR: MUtils library version mismatch detected!");
|
||
MUtils::OS::system_message_wrn(L"MUtils", L"Perform a clean(!) re-install of the application to fix the problem!");
|
||
abort();
|
||
}
|
||
return 0;
|
||
}
|