1 ///////////////////////////////////////////////////////////////////////////////
2 // MuldeR's Utilities for Qt
3 // Copyright (C) 2004-2016 LoRd_MuldeR <MuldeR2@GMX.de>
5 // This library is free software; you can redistribute it and/or
6 // modify it under the terms of the GNU Lesser General Public
7 // License as published by the Free Software Foundation; either
8 // version 2.1 of the License, or (at your option) any later version.
10 // This library is distributed in the hope that it will be useful,
11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 // Lesser General Public License for more details.
15 // You should have received a copy of the GNU Lesser General Public
16 // License along with this library; if not, write to the Free Software
17 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 // http://www.gnu.org/licenses/lgpl-2.1.txt
20 //////////////////////////////////////////////////////////////////////////////////
27 #include <MUtils/Global.h>
28 #include <MUtils/OSSupport.h>
31 #include "DirLocker.h"
32 #include "3rd_party/strnatcmp/include/strnatcmp.h"
36 #include <QReadWriteLock>
51 ///////////////////////////////////////////////////////////////////////////////
53 ///////////////////////////////////////////////////////////////////////////////
55 //Robert Jenkins' 96 bit Mix Function
56 static unsigned int mix_function(const unsigned int x, const unsigned int y, const unsigned int z)
62 a=a-b; a=a-c; a=a^(c >> 13);
63 b=b-c; b=b-a; b=b^(a << 8 );
64 c=c-a; c=c-b; c=c^(b >> 13);
65 a=a-b; a=a-c; a=a^(c >> 12);
66 b=b-c; b=b-a; b=b^(a << 16);
67 c=c-a; c=c-b; c=c^(b >> 5 );
68 a=a-b; a=a-c; a=a^(c >> 3 );
69 b=b-c; b=b-a; b=b^(a << 10);
70 c=c-a; c=c-b; c=c^(b >> 15);
75 void MUtils::seed_rand(void)
77 qsrand(mix_function(clock(), time(NULL), _getpid()));
80 quint32 MUtils::next_rand32(void)
82 quint32 rnd = 0xDEADBEEF;
91 for(size_t i = 0; i < sizeof(quint32); i++)
93 rnd = (rnd << 8) ^ qrand();
99 quint64 MUtils::next_rand64(void)
101 return (quint64(next_rand32()) << 32) | quint64(next_rand32());
104 QString MUtils::rand_str(const bool &bLong)
108 return QString::number(next_rand64(), 16).rightJustified(16, QLatin1Char('0'));
110 return QString("%1%2").arg(rand_str(false), rand_str(false));
113 ///////////////////////////////////////////////////////////////////////////////
114 // GET TEMP FILE NAME
115 ///////////////////////////////////////////////////////////////////////////////
117 QString MUtils::make_temp_file(const QString &basePath, const QString &extension, const bool placeholder)
119 for(int i = 0; i < 4096; i++)
121 const QString tempFileName = QString("%1/%2.%3").arg(basePath, rand_str(), extension);
122 if(!QFileInfo(tempFileName).exists())
126 QFile file(tempFileName);
127 if(file.open(QFile::ReadWrite))
140 qWarning("Failed to generate unique temp file name!");
144 ///////////////////////////////////////////////////////////////////////////////
146 ///////////////////////////////////////////////////////////////////////////////
149 * Compute parity in parallel
150 * http://www.graphics.stanford.edu/~seander/bithacks.html#ParityParallel
152 bool MUtils::parity(quint32 value)
154 value ^= value >> 16;
158 return ((0x6996 >> value) & 1) != 0;
161 ///////////////////////////////////////////////////////////////////////////////
163 ///////////////////////////////////////////////////////////////////////////////
165 static QScopedPointer<MUtils::Internal::DirLock> g_temp_folder_file;
166 static QReadWriteLock g_temp_folder_lock;
168 static QString try_create_subfolder(const QString &baseDir, const QString &postfix)
170 const QString baseDirPath = QDir(baseDir).absolutePath();
171 for(int i = 0; i < 32; i++)
173 QDir directory(baseDirPath);
174 if(directory.mkpath(postfix) && directory.cd(postfix))
176 return directory.canonicalPath();
182 static MUtils::Internal::DirLock *try_init_temp_folder(const QString &baseDir)
184 const QString tempPath = try_create_subfolder(baseDir, MUtils::rand_str());
185 if(!tempPath.isEmpty())
187 for(int i = 0; i < 32; i++)
189 MUtils::Internal::DirLock *lockFile = NULL;
192 lockFile = new MUtils::Internal::DirLock(tempPath);
195 catch(MUtils::Internal::DirLockException&)
197 /*ignore error and try again*/
204 static bool temp_folder_cleanup_helper(const QString &tempPath)
207 static const size_t MAX_DELAY = 8192;
210 QDir::setCurrent(QDir::rootPath());
211 if(MUtils::remove_directory(tempPath, true))
217 if(delay > MAX_DELAY)
221 MUtils::OS::sleep_ms(delay);
227 static void temp_folder_cleaup(void)
229 QWriteLocker writeLock(&g_temp_folder_lock);
231 //Clean the directory
232 while(!g_temp_folder_file.isNull())
234 const QString tempPath = g_temp_folder_file->getPath();
235 g_temp_folder_file.reset(NULL);
236 if(!temp_folder_cleanup_helper(tempPath))
238 MUtils::OS::system_message_wrn(L"Temp Cleaner", L"Warning: Not all temporary files could be removed!");
243 const QString &MUtils::temp_folder(void)
245 QReadLocker readLock(&g_temp_folder_lock);
247 //Already initialized?
248 if(!g_temp_folder_file.isNull())
250 return g_temp_folder_file->getPath();
253 //Obtain the write lock to initilaize
255 QWriteLocker writeLock(&g_temp_folder_lock);
257 //Still uninitilaized?
258 if(!g_temp_folder_file.isNull())
260 return g_temp_folder_file->getPath();
263 //Try the %TMP% or %TEMP% directory first
264 if(MUtils::Internal::DirLock *lockFile = try_init_temp_folder(QDir::tempPath()))
266 g_temp_folder_file.reset(lockFile);
267 atexit(temp_folder_cleaup);
268 return lockFile->getPath();
271 qWarning("%%TEMP%% directory not found -> trying fallback mode now!");
272 static const OS::known_folder_t FOLDER_ID[2] = { OS::FOLDER_LOCALAPPDATA, OS::FOLDER_SYSTROOT_DIR };
273 for(size_t id = 0; id < 2; id++)
275 const QString &knownFolder = OS::known_folder(FOLDER_ID[id]);
276 if(!knownFolder.isEmpty())
278 const QString tempRoot = try_create_subfolder(knownFolder, QLatin1String("TEMP"));
279 if(!tempRoot.isEmpty())
281 if(MUtils::Internal::DirLock *lockFile = try_init_temp_folder(tempRoot))
283 g_temp_folder_file.reset(lockFile);
284 atexit(temp_folder_cleaup);
285 return lockFile->getPath();
291 qFatal("Temporary directory could not be initialized !!!");
292 return (*((QString*)NULL));
295 ///////////////////////////////////////////////////////////////////////////////
296 // REMOVE DIRECTORY / FILE
297 ///////////////////////////////////////////////////////////////////////////////
299 static const QFile::Permissions FILE_PERMISSIONS_NONE = QFile::ReadOther | QFile::WriteOther;
301 bool MUtils::remove_file(const QString &fileName)
303 QFileInfo fileInfo(fileName);
304 if(!(fileInfo.exists() && fileInfo.isFile()))
309 for(int i = 0; i < 32; i++)
311 QFile file(fileName);
312 file.setPermissions(FILE_PERMISSIONS_NONE);
313 if((!(fileInfo.exists() && fileInfo.isFile())) || file.remove())
320 qWarning("Could not delete \"%s\"", MUTILS_UTF8(fileName));
324 static bool remove_directory_helper(const QDir &folder)
330 const QString dirName = folder.dirName();
331 if(!dirName.isEmpty())
336 QFile::setPermissions(folder.absolutePath(), FILE_PERMISSIONS_NONE);
337 if(parent.rmdir(dirName))
346 bool MUtils::remove_directory(const QString &folderPath, const bool &recursive)
348 QDir folder(folderPath);
356 const QFileInfoList entryList = folder.entryInfoList(QDir::AllEntries | QDir::NoDotAndDotDot | QDir::Hidden);
357 for(QFileInfoList::ConstIterator iter = entryList.constBegin(); iter != entryList.constEnd(); iter++)
361 remove_directory(iter->canonicalFilePath(), true);
363 else if(iter->isFile())
365 remove_file(iter->canonicalFilePath());
370 for(int i = 0; i < 32; i++)
372 if(remove_directory_helper(folder))
379 qWarning("Could not rmdir \"%s\"", MUTILS_UTF8(folderPath));
383 ///////////////////////////////////////////////////////////////////////////////
385 ///////////////////////////////////////////////////////////////////////////////
387 void MUtils::init_process(QProcess &process, const QString &wokringDir, const bool bReplaceTempDir)
389 //Environment variable names
390 static const char *const s_envvar_names_temp[] =
392 "TEMP", "TMP", "TMPDIR", "HOME", "USERPROFILE", "HOMEPATH", NULL
394 static const char *const s_envvar_names_remove[] =
396 "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
399 //Initialize environment
400 QProcessEnvironment env = process.processEnvironment();
401 if(env.isEmpty()) env = QProcessEnvironment::systemEnvironment();
403 //Clean a number of enviroment variables that might affect our tools
404 for(size_t i = 0; s_envvar_names_remove[i]; i++)
406 env.remove(QString::fromLatin1(s_envvar_names_remove[i]));
407 env.remove(QString::fromLatin1(s_envvar_names_remove[i]).toLower());
410 const QString tempDir = QDir::toNativeSeparators(temp_folder());
412 //Replace TEMP directory in environment
415 for(size_t i = 0; s_envvar_names_temp[i]; i++)
417 env.insert(s_envvar_names_temp[i], tempDir);
421 //Setup PATH variable
422 const QString path = env.value("PATH", QString()).trimmed();
423 env.insert("PATH", path.isEmpty() ? tempDir : QString("%1;%2").arg(tempDir, path));
425 //Setup QPorcess object
426 process.setWorkingDirectory(wokringDir);
427 process.setProcessChannelMode(QProcess::MergedChannels);
428 process.setReadChannel(QProcess::StandardOutput);
429 process.setProcessEnvironment(env);
432 ///////////////////////////////////////////////////////////////////////////////
433 // NATURAL ORDER STRING COMPARISON
434 ///////////////////////////////////////////////////////////////////////////////
436 static bool natural_string_sort_helper(const QString &str1, const QString &str2)
438 return (MUtils::Internal::NaturalSort::strnatcmp(MUTILS_WCHR(str1), MUTILS_WCHR(str2)) < 0);
441 static bool natural_string_sort_helper_fold_case(const QString &str1, const QString &str2)
443 return (MUtils::Internal::NaturalSort::strnatcasecmp(MUTILS_WCHR(str1), MUTILS_WCHR(str2)) < 0);
446 void MUtils::natural_string_sort(QStringList &list, const bool bIgnoreCase)
448 qSort(list.begin(), list.end(), bIgnoreCase ? natural_string_sort_helper_fold_case : natural_string_sort_helper);
451 ///////////////////////////////////////////////////////////////////////////////
453 ///////////////////////////////////////////////////////////////////////////////
457 const char *const search;
458 const char *const replace;
475 QString MUtils::clean_file_name(const QString &name)
477 QRegExp regExp("\"(.+)\"");
478 regExp.setMinimal(true);
480 QString str = QString(name).replace(regExp, "``\\1ยดยด").trimmed();
481 for(size_t i = 0; CLEAN_FILE_NAME[i].search; i++)
483 str.replace(CLEAN_FILE_NAME[i].search, CLEAN_FILE_NAME[i].replace);
486 while(str.endsWith(QLatin1Char('.')))
492 return str.trimmed();
495 static QPair<QString,QString> clean_file_path_get_prefix(const QString path)
497 static const char *const PREFIXES[] =
499 "//?/", "//", "/", NULL
501 const QString posixPath = QDir::fromNativeSeparators(path.trimmed());
502 for (int i = 0; PREFIXES[i]; i++)
504 const QString prefix = QString::fromLatin1(PREFIXES[i]);
505 if (posixPath.startsWith(prefix))
507 return qMakePair(prefix, posixPath.mid(prefix.length()));
510 return qMakePair(QString(), posixPath);
513 QString MUtils::clean_file_path(const QString &path)
515 const QPair<QString, QString> prefix = clean_file_path_get_prefix(path);
517 QStringList parts = prefix.second.split(QLatin1Char('/'), QString::SkipEmptyParts);
518 for(int i = 0; i < parts.count(); i++)
520 if((i == 0) && (parts[i].length() == 2) && parts[i][0].isLetter() && (parts[i][1] == QLatin1Char(':')))
522 continue; //handle case "c:\"
524 parts[i] = MUtils::clean_file_name(parts[i]);
527 const QString cleanPath = parts.join(QLatin1String("/"));
528 return prefix.first.isEmpty() ? cleanPath : prefix.first + cleanPath;
531 ///////////////////////////////////////////////////////////////////////////////
532 // REGULAR EXPESSION HELPER
533 ///////////////////////////////////////////////////////////////////////////////
535 bool MUtils::regexp_parse_uint32(const QRegExp ®exp, quint32 &value)
537 return regexp_parse_uint32(regexp, &value, 1);
540 bool MUtils::regexp_parse_uint32(const QRegExp ®exp, quint32 *values, const size_t &count)
542 const QStringList caps = regexp.capturedTexts();
544 if(caps.isEmpty() || (quint32(caps.count()) <= count))
549 for(size_t i = 0; i < count; i++)
552 values[i] = caps[i+1].toUInt(&ok);
562 ///////////////////////////////////////////////////////////////////////////////
563 // AVAILABLE CODEPAGES
564 ///////////////////////////////////////////////////////////////////////////////
566 QStringList MUtils::available_codepages(const bool &noAliases)
568 QStringList codecList;
569 QList<QByteArray> availableCodecs = QTextCodec::availableCodecs();
571 while(!availableCodecs.isEmpty())
573 const QByteArray current = availableCodecs.takeFirst();
574 if(!current.toLower().startsWith("system"))
576 codecList << QString::fromLatin1(current.constData(), current.size());
579 if(QTextCodec *const currentCodec = QTextCodec::codecForName(current.constData()))
581 const QList<QByteArray> aliases = currentCodec->aliases();
582 for(QList<QByteArray>::ConstIterator iter = aliases.constBegin(); iter != aliases.constEnd(); iter++)
584 availableCodecs.removeAll(*iter);
594 ///////////////////////////////////////////////////////////////////////////////
596 ///////////////////////////////////////////////////////////////////////////////
598 int MUtils::Internal::selfTest(const char *const buildKey, const bool debug)
600 static const bool MY_DEBUG_FLAG = MUTILS_DEBUG;
601 static const char *const MY_BUILD_KEY = __DATE__ "@" __TIME__;
603 if(strncmp(buildKey, MY_BUILD_KEY, 13) || (MY_DEBUG_FLAG != debug))
605 MUtils::OS::system_message_err(L"MUtils", L"FATAL ERROR: MUtils library version mismatch detected!");
606 MUtils::OS::system_message_wrn(L"MUtils", L"Perform a clean(!) re-install of the application to fix the problem!");