src/OSSupport_Win32.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // MuldeR's Utilities for Qt
   3 // Copyright (C) 2004-2015 LoRd_MuldeR <MuldeR2@GMX.de>
   4 //
   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.
   9 //
  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.
  14 //
  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
  18 //
  19 // http://www.gnu.org/licenses/lgpl-2.1.txt
  20 //////////////////////////////////////////////////////////////////////////////////
  21
  22 //Win32 API
  23 #define WIN32_LEAN_AND_MEAN 1
  24 #include <Windows.h>
  25 #include <Psapi.h>
  26 #include <Sensapi.h>
  27 #include <Shellapi.h>
  28 #include <PowrProf.h>
  29 #include <Mmsystem.h>
  30 #pragma warning(push)
  31 #pragma warning(disable:4091) //for MSVC2015
  32 #include <ShlObj.h>
  33 #pragma warning(pop)
  34
  35 //CRT
  36 #include <io.h>
  37
  38 //Internal
  39 #include <MUtils/Global.h>
  40 #include <MUtils/OSSupport.h>
  41 #include <MUtils/GUI.h>
  42 #include "CriticalSection_Win32.h"
  43
  44 //Qt
  45 #include <QMap>
  46 #include <QReadWriteLock>
  47 #include <QLibrary>
  48 #include <QDir>
  49 #include <QWidget>
  50 #include <QProcess>
  51
  52 //Main thread ID
  53 static const DWORD g_main_thread_id = GetCurrentThreadId();
  54
  55 ///////////////////////////////////////////////////////////////////////////////
  56 // SYSTEM MESSAGE
  57 ///////////////////////////////////////////////////////////////////////////////
  58
  59 static const UINT g_msgBoxFlags = MB_TOPMOST | MB_TASKMODAL | MB_SETFOREGROUND;
  60
  61 void MUtils::OS::system_message_nfo(const wchar_t *const title, const wchar_t *const text)
  62 {
  63         MessageBoxW(NULL, text, title, g_msgBoxFlags | MB_ICONINFORMATION);
  64 }
  65
  66 void MUtils::OS::system_message_wrn(const wchar_t *const title, const wchar_t *const text)
  67 {
  68         MessageBoxW(NULL, text, title, g_msgBoxFlags | MB_ICONWARNING);
  69 }
  70
  71 void MUtils::OS::system_message_err(const wchar_t *const title, const wchar_t *const text)
  72 {
  73         MessageBoxW(NULL, text, title, g_msgBoxFlags | MB_ICONERROR);
  74 }
  75
  76 ///////////////////////////////////////////////////////////////////////////////
  77 // FETCH CLI ARGUMENTS
  78 ///////////////////////////////////////////////////////////////////////////////
  79
  80 static QReadWriteLock                          g_arguments_lock;
  81 static QScopedPointer<MUtils::OS::ArgumentMap> g_arguments_list;
  82
  83 const QStringList MUtils::OS::crack_command_line(const QString &command_line)
  84 {
  85         int nArgs = 0;
  86         LPWSTR *szArglist = CommandLineToArgvW(command_line.isNull() ? GetCommandLineW() : MUTILS_WCHR(command_line), &nArgs);
  87
  88         QStringList command_line_tokens;
  89         if(NULL != szArglist)
  90         {
  91                 for(int i = 0; i < nArgs; i++)
  92                 {
  93                         const QString argStr = MUTILS_QSTR(szArglist[i]).trimmed();
  94                         if(!argStr.isEmpty())
  95                         {
  96                                 command_line_tokens << argStr;
  97                         }
  98                 }
  99                 LocalFree(szArglist);
 100         }
 101
 102         return command_line_tokens;
 103 }
 104
 105 const MUtils::OS::ArgumentMap &MUtils::OS::arguments(void)
 106 {
 107         QReadLocker readLock(&g_arguments_lock);
 108
 109         //Already initialized?
 110         if(!g_arguments_list.isNull())
 111         {
 112                 return (*(g_arguments_list.data()));
 113         }
 114
 115         readLock.unlock();
 116         QWriteLocker writeLock(&g_arguments_lock);
 117
 118         //Still not initialized?
 119         if(!g_arguments_list.isNull())
 120         {
 121                 return (*(g_arguments_list.data()));
 122         }
 123
 124         g_arguments_list.reset(new ArgumentMap());
 125         const QStringList argList = crack_command_line();
 126
 127         if(!argList.isEmpty())
 128         {
 129                 const QString argPrefix = QLatin1String("--");
 130                 const QChar   separator = QLatin1Char('=');
 131
 132                 bool firstToken = true;
 133                 for(QStringList::ConstIterator iter = argList.constBegin(); iter != argList.constEnd(); iter++)
 134                 {
 135                         if(firstToken)
 136                         {
 137                                 firstToken = false;
 138                                 continue; /*skip executable file name*/
 139                         }
 140                         if(iter->startsWith(argPrefix))
 141                         {
 142                                 const QString argData = iter->mid(2).trimmed();
 143                                 if(argData.length() > 0)
 144                                 {
 145                                         const int separatorIndex = argData.indexOf(separator);
 146                                         if(separatorIndex > 0)
 147                                         {
 148                                                 const QString argKey = argData.left(separatorIndex).trimmed();
 149                                                 const QString argVal = argData.mid(separatorIndex + 1).trimmed();
 150                                                 g_arguments_list->insertMulti(argKey.toLower(), argVal);
 151                                         }
 152                                         else
 153                                         {
 154                                                 g_arguments_list->insertMulti(argData.toLower(), QString());
 155                                         }
 156                                 }
 157                         }
 158                 }
 159         }
 160         else if(argList.empty())
 161         {
 162                 qWarning("CommandLineToArgvW() has failed !!!");
 163         }
 164
 165         return (*(g_arguments_list.data()));
 166 }
 167
 168 ///////////////////////////////////////////////////////////////////////////////
 169 // COPY FILE
 170 ///////////////////////////////////////////////////////////////////////////////
 171
 172 typedef struct _progress_callback_data_t
 173 {
 174         MUtils::OS::progress_callback_t callback_function;
 175         void *user_data;
 176 }
 177 progress_callback_data_t;
 178
 179 static DWORD __stdcall copy_file_progress(LARGE_INTEGER TotalFileSize, LARGE_INTEGER TotalBytesTransferred, LARGE_INTEGER StreamSize, LARGE_INTEGER StreamBytesTransferred, DWORD dwStreamNumber, DWORD dwCallbackReason, HANDLE hSourceFile, HANDLE hDestinationFile, LPVOID lpData)
 180 {
 181         if(const progress_callback_data_t *data = (progress_callback_data_t*) lpData)
 182         {
 183                 const double progress = qBound(0.0, double(TotalBytesTransferred.QuadPart) / double(TotalFileSize.QuadPart), 1.0);
 184                 return data->callback_function(progress, data->user_data) ? PROGRESS_CONTINUE : PROGRESS_CANCEL;
 185         }
 186         return PROGRESS_CONTINUE;
 187 }
 188
 189 MUTILS_API bool MUtils::OS::copy_file(const QString &sourcePath, const QString &outputPath, const bool &overwrite, const progress_callback_t callback, void *const userData)
 190 {
 191         progress_callback_data_t callback_data = { callback, userData };
 192         BOOL cancel = FALSE;
 193         const BOOL result = CopyFileExW(MUTILS_WCHR(QDir::toNativeSeparators(sourcePath)), MUTILS_WCHR(QDir::toNativeSeparators(outputPath)), ((callback_data.callback_function) ? copy_file_progress : NULL), ((callback_data.callback_function) ? &callback_data : NULL), &cancel, (overwrite ? 0 : COPY_FILE_FAIL_IF_EXISTS));
 194
 195         if(result == FALSE)
 196         {
 197                 const DWORD errorCode = GetLastError();
 198                 if(errorCode != ERROR_REQUEST_ABORTED)
 199                 {
 200                         qWarning("CopyFile() failed with error code 0x%08X!", errorCode);
 201                 }
 202                 else
 203                 {
 204                         qWarning("CopyFile() operation was abroted by user!");
 205                 }
 206         }
 207
 208         return (result != FALSE);
 209 }
 210
 211 ///////////////////////////////////////////////////////////////////////////////
 212 // GET FILE VERSION
 213 ///////////////////////////////////////////////////////////////////////////////
 214
 215 static bool get_file_version_helper(const QString fileName, PVOID buffer, const size_t &size, quint16 *const major, quint16 *const minor, quint16 *const patch, quint16 *const build)
 216 {
 217         if(!GetFileVersionInfo(MUTILS_WCHR(fileName), 0, size, buffer))
 218         {
 219                 qWarning("GetFileVersionInfo() has failed, file version cannot be determined!");
 220                 return false;
 221         }
 222
 223         VS_FIXEDFILEINFO *verInfo;
 224         UINT verInfoLen;
 225         if(!VerQueryValue(buffer, L"\\", (LPVOID*)(&verInfo), &verInfoLen))
 226         {
 227                 qWarning("VerQueryValue() has failed, file version cannot be determined!");
 228                 return false;
 229         }
 230
 231         if(major) *major = quint16((verInfo->dwFileVersionMS >> 16) & 0x0000FFFF);
 232         if(minor) *minor = quint16((verInfo->dwFileVersionMS)       & 0x0000FFFF);
 233         if(patch) *patch = quint16((verInfo->dwFileVersionLS >> 16) & 0x0000FFFF);
 234         if(build) *build = quint16((verInfo->dwFileVersionLS)       & 0x0000FFFF);
 235
 236         return true;
 237 }
 238
 239 bool MUtils::OS::get_file_version(const QString fileName, quint16 *const major, quint16 *const minor, quint16 *const patch, quint16 *const build)
 240 {
 241         if(major) *major = 0U; if(minor) *minor = 0U;
 242         if(patch) *patch = 0U; if(build) *build = 0U;
 243
 244         const DWORD size = GetFileVersionInfoSize(MUTILS_WCHR(fileName), NULL);
 245         if(size < 1)
 246         {
 247                 qWarning("GetFileVersionInfoSize() has failed, file version cannot be determined!");
 248                 return false;
 249         }
 250
 251         PVOID buffer = _malloca(size);
 252         if(!buffer)
 253         {
 254                 qWarning("Memory allocation has failed!");
 255                 return false;
 256         }
 257
 258         const bool success = get_file_version_helper(fileName, buffer, size, major, minor, patch, build);
 259
 260         _freea(buffer);
 261         return success;
 262 }
 263
 264 ///////////////////////////////////////////////////////////////////////////////
 265 // OS VERSION DETECTION
 266 ///////////////////////////////////////////////////////////////////////////////
 267
 268 static bool g_os_version_initialized = false;
 269 static MUtils::OS::Version::os_version_t g_os_version_info = MUtils::OS::Version::UNKNOWN_OPSYS;
 270 static QReadWriteLock g_os_version_lock;
 271
 272 //Maps marketing names to the actual Windows NT versions
 273 static const struct
 274 {
 275         MUtils::OS::Version::os_version_t version;
 276         const char friendlyName[64];
 277 }
 278 g_os_version_lut[] =
 279 {
 280         { MUtils::OS::Version::WINDOWS_WIN2K, "Windows 2000"                                  },        //2000
 281         { MUtils::OS::Version::WINDOWS_WINXP, "Windows XP or Windows XP Media Center Edition" },        //XP
 282         { MUtils::OS::Version::WINDOWS_XPX64, "Windows Server 2003 or Windows XP x64"         },        //XP_x64
 283         { MUtils::OS::Version::WINDOWS_VISTA, "Windows Vista or Windows Server 2008"          },        //Vista
 284         { MUtils::OS::Version::WINDOWS_WIN70, "Windows 7 or Windows Server 2008 R2"           },        //7
 285         { MUtils::OS::Version::WINDOWS_WIN80, "Windows 8 or Windows Server 2012"              },        //8
 286         { MUtils::OS::Version::WINDOWS_WIN81, "Windows 8.1 or Windows Server 2012 R2"         },        //8.1
 287         { MUtils::OS::Version::WINDOWS_WN100, "Windows 10 or Windows Server 2014 (Preview)"   },        //10
 288         { MUtils::OS::Version::UNKNOWN_OPSYS, "N/A" }
 289 };
 290
 291 //OS version data dtructures
 292 namespace MUtils
 293 {
 294         namespace OS
 295         {
 296                 namespace Version
 297                 {
 298                         //Comparision operators for os_version_t
 299                         bool os_version_t::operator== (const os_version_t &rhs) const { return (type == rhs.type) && (versionMajor == rhs.versionMajor) && ((versionMinor == rhs.versionMinor)); }
 300                         bool os_version_t::operator!= (const os_version_t &rhs) const { return (type != rhs.type) || (versionMajor != rhs.versionMajor) || ((versionMinor != rhs.versionMinor)); }
 301                         bool os_version_t::operator>  (const os_version_t &rhs) const { return (type == rhs.type) && ((versionMajor > rhs.versionMajor) || ((versionMajor == rhs.versionMajor) && (versionMinor >  rhs.versionMinor))); }
 302                         bool os_version_t::operator>= (const os_version_t &rhs) const { return (type == rhs.type) && ((versionMajor > rhs.versionMajor) || ((versionMajor == rhs.versionMajor) && (versionMinor >= rhs.versionMinor))); }
 303                         bool os_version_t::operator<  (const os_version_t &rhs) const { return (type == rhs.type) && ((versionMajor < rhs.versionMajor) || ((versionMajor == rhs.versionMajor) && (versionMinor <  rhs.versionMinor))); }
 304                         bool os_version_t::operator<= (const os_version_t &rhs) const { return (type == rhs.type) && ((versionMajor < rhs.versionMajor) || ((versionMajor == rhs.versionMajor) && (versionMinor <= rhs.versionMinor))); }
 305
 306                         //Known Windows NT versions
 307                         const os_version_t WINDOWS_WIN2K = { OS_WINDOWS,  5, 0 };       // 2000
 308                         const os_version_t WINDOWS_WINXP = { OS_WINDOWS,  5, 1 };       // XP
 309                         const os_version_t WINDOWS_XPX64 = { OS_WINDOWS,  5, 2 };       // XP_x64
 310                         const os_version_t WINDOWS_VISTA = { OS_WINDOWS,  6, 0 };       // Vista
 311                         const os_version_t WINDOWS_WIN70 = { OS_WINDOWS,  6, 1 };       // 7
 312                         const os_version_t WINDOWS_WIN80 = { OS_WINDOWS,  6, 2 };       // 8
 313                         const os_version_t WINDOWS_WIN81 = { OS_WINDOWS,  6, 3 };       // 8.1
 314                         const os_version_t WINDOWS_WN100 = { OS_WINDOWS, 10, 0 };       // 10
 315
 316                         //Unknown OS
 317                         const os_version_t UNKNOWN_OPSYS = { OS_UNKNOWN, 0, 0 };        // N/A
 318                 }
 319         }
 320 }
 321
 322 static bool verify_os_version(const DWORD major, const DWORD minor)
 323 {
 324         OSVERSIONINFOEXW osvi;
 325         DWORDLONG dwlConditionMask = 0;
 326
 327         //Initialize the OSVERSIONINFOEX structure
 328         memset(&osvi, 0, sizeof(OSVERSIONINFOEXW));
 329         osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEXW);
 330         osvi.dwMajorVersion = major;
 331         osvi.dwMinorVersion = minor;
 332         osvi.dwPlatformId = VER_PLATFORM_WIN32_NT;
 333
 334         //Initialize the condition mask
 335         VER_SET_CONDITION(dwlConditionMask, VER_MAJORVERSION, VER_GREATER_EQUAL);
 336         VER_SET_CONDITION(dwlConditionMask, VER_MINORVERSION, VER_GREATER_EQUAL);
 337         VER_SET_CONDITION(dwlConditionMask, VER_PLATFORMID,   VER_EQUAL);
 338
 339         // Perform the test
 340         const BOOL ret = VerifyVersionInfoW(&osvi, VER_MAJORVERSION | VER_MINORVERSION | VER_PLATFORMID, dwlConditionMask);
 341
 342         //Error checking
 343         if(!ret)
 344         {
 345                 if(GetLastError() != ERROR_OLD_WIN_VERSION)
 346                 {
 347                         qWarning("VerifyVersionInfo() system call has failed!");
 348                 }
 349         }
 350
 351         return (ret != FALSE);
 352 }
 353
 354 static bool get_real_os_version(unsigned int *major, unsigned int *minor, bool *pbOverride)
 355 {
 356         *major = *minor = 0;
 357         *pbOverride = false;
 358
 359         //Initialize local variables
 360         OSVERSIONINFOEXW osvi;
 361         memset(&osvi, 0, sizeof(OSVERSIONINFOEXW));
 362         osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEXW);
 363
 364         //Try GetVersionEx() first
 365         if(GetVersionExW((LPOSVERSIONINFOW)&osvi) == FALSE)
 366         {
 367                 qWarning("GetVersionEx() has failed, cannot detect Windows version!");
 368                 return false;
 369         }
 370
 371         //Make sure we are running on NT
 372         if(osvi.dwPlatformId == VER_PLATFORM_WIN32_NT)
 373         {
 374                 *major = osvi.dwMajorVersion;
 375                 *minor = osvi.dwMinorVersion;
 376         }
 377         else
 378         {
 379                 qWarning("Not running on Windows NT, unsupported operating system!");
 380                 return false;
 381         }
 382
 383         //Determine the real *major* version first
 384         forever
 385         {
 386                 const DWORD nextMajor = (*major) + 1;
 387                 if(verify_os_version(nextMajor, 0))
 388                 {
 389                         *pbOverride = true;
 390                         *major = nextMajor;
 391                         *minor = 0;
 392                         continue;
 393                 }
 394                 break;
 395         }
 396
 397         //Now also determine the real *minor* version
 398         forever
 399         {
 400                 const DWORD nextMinor = (*minor) + 1;
 401                 if(verify_os_version((*major), nextMinor))
 402                 {
 403                         *pbOverride = true;
 404                         *minor = nextMinor;
 405                         continue;
 406                 }
 407                 break;
 408         }
 409
 410         //Workaround for the mess that is sometimes referred to as "Windows 10"
 411         if(((*major) > 6) || (((*major) == 6) && ((*minor) >= 2)))
 412         {
 413                 quint16 kernel32_major, kernel32_minor;
 414                 if(MUtils::OS::get_file_version(QLatin1String("kernel32"), &kernel32_major, &kernel32_minor))
 415                 {
 416                         if((kernel32_major > (*major)) || ((kernel32_major == (*major)) && (kernel32_minor > (*minor))))
 417                         {
 418                                 *major = kernel32_major;
 419                                 *minor = kernel32_minor;
 420                                 *pbOverride = true;
 421                         }
 422                 }
 423         }
 424
 425         return true;
 426 }
 427
 428 const MUtils::OS::Version::os_version_t &MUtils::OS::os_version(void)
 429 {
 430         QReadLocker readLock(&g_os_version_lock);
 431
 432         //Already initialized?
 433         if(g_os_version_initialized)
 434         {
 435                 return g_os_version_info;
 436         }
 437
 438         readLock.unlock();
 439         QWriteLocker writeLock(&g_os_version_lock);
 440
 441         //Initialized now?
 442         if(g_os_version_initialized)
 443         {
 444                 return g_os_version_info;
 445         }
 446
 447         //Detect OS version
 448         unsigned int major, minor; bool overrideFlg;
 449         if(get_real_os_version(&major, &minor, &overrideFlg))
 450         {
 451                 g_os_version_info.type = Version::OS_WINDOWS;
 452                 g_os_version_info.versionMajor = major;
 453                 g_os_version_info.versionMinor = minor;
 454                 g_os_version_info.overrideFlag = overrideFlg;
 455         }
 456         else
 457         {
 458                 qWarning("Failed to determin the operating system version!");
 459         }
 460
 461         //Completed
 462         g_os_version_initialized = true;
 463         return g_os_version_info;
 464 }
 465
 466 const char *MUtils::OS::os_friendly_name(const MUtils::OS::Version::os_version_t &os_version)
 467 {
 468         for(size_t i = 0; g_os_version_lut[i].version != MUtils::OS::Version::UNKNOWN_OPSYS; i++)
 469         {
 470                 if(os_version == g_os_version_lut[i].version)
 471                 {
 472                         return g_os_version_lut[i].friendlyName;
 473                 }
 474         }
 475
 476         return NULL;
 477 }
 478
 479 ///////////////////////////////////////////////////////////////////////////////
 480 // WINE DETECTION
 481 ///////////////////////////////////////////////////////////////////////////////
 482
 483 static bool g_wine_deteced = false;
 484 static bool g_wine_initialized = false;
 485 static QReadWriteLock g_wine_lock;
 486
 487 static const bool detect_wine(void)
 488 {
 489         bool is_wine = false;
 490
 491         QLibrary ntdll("ntdll.dll");
 492         if(ntdll.load())
 493         {
 494                 if(ntdll.resolve("wine_nt_to_unix_file_name") != NULL) is_wine = true;
 495                 if(ntdll.resolve("wine_get_version")          != NULL) is_wine = true;
 496                 ntdll.unload();
 497         }
 498
 499         return is_wine;
 500 }
 501
 502 const bool &MUtils::OS::running_on_wine(void)
 503 {
 504         QReadLocker readLock(&g_wine_lock);
 505
 506         //Already initialized?
 507         if(g_wine_initialized)
 508         {
 509                 return g_wine_deteced;
 510         }
 511
 512         readLock.unlock();
 513         QWriteLocker writeLock(&g_wine_lock);
 514
 515         //Initialized now?
 516         if(g_wine_initialized)
 517         {
 518                 return g_wine_deteced;
 519         }
 520
 521         //Try to detect Wine
 522         g_wine_deteced = detect_wine();
 523         g_wine_initialized = true;
 524
 525         return g_wine_deteced;
 526 }
 527
 528 ///////////////////////////////////////////////////////////////////////////////
 529 // KNWON FOLDERS
 530 ///////////////////////////////////////////////////////////////////////////////
 531
 532 typedef QMap<size_t, QString> KFMap;
 533 typedef HRESULT (WINAPI *SHGetKnownFolderPath_t)(const GUID &rfid, DWORD dwFlags, HANDLE hToken, PWSTR *ppszPath);
 534 typedef HRESULT (WINAPI *SHGetFolderPath_t)(HWND hwndOwner, int nFolder, HANDLE hToken, DWORD dwFlags, LPWSTR pszPath);
 535
 536 static QScopedPointer<KFMap>  g_known_folders_map;
 537 static SHGetKnownFolderPath_t g_known_folders_fpGetKnownFolderPath;
 538 static SHGetFolderPath_t      g_known_folders_fpGetFolderPath;
 539 static QReadWriteLock         g_known_folders_lock;
 540
 541 const QString &MUtils::OS::known_folder(known_folder_t folder_id)
 542 {
 543         typedef enum { KF_FLAG_CREATE = 0x00008000 } kf_flags_t;
 544
 545         struct
 546         {
 547                 const int csidl;
 548                 const GUID guid;
 549         }
 550         static s_folders[] =
 551         {
 552                 { 0x001c, {0xF1B32785,0x6FBA,0x4FCF,{0x9D,0x55,0x7B,0x8E,0x7F,0x15,0x70,0x91}} },  //CSIDL_LOCAL_APPDATA
 553                 { 0x0026, {0x905e63b6,0xc1bf,0x494e,{0xb2,0x9c,0x65,0xb7,0x32,0xd3,0xd2,0x1a}} },  //CSIDL_PROGRAM_FILES
 554                 { 0x0024, {0xF38BF404,0x1D43,0x42F2,{0x93,0x05,0x67,0xDE,0x0B,0x28,0xFC,0x23}} },  //CSIDL_WINDOWS_FOLDER
 555                 { 0x0025, {0x1AC14E77,0x02E7,0x4E5D,{0xB7,0x44,0x2E,0xB1,0xAE,0x51,0x98,0xB7}} },  //CSIDL_SYSTEM_FOLDER
 556         };
 557
 558         size_t folderId = size_t(-1);
 559
 560         switch(folder_id)
 561         {
 562                 case FOLDER_LOCALAPPDATA: folderId = 0; break;
 563                 case FOLDER_PROGRAMFILES: folderId = 1; break;
 564                 case FOLDER_SYSTROOT_DIR: folderId = 2; break;
 565                 case FOLDER_SYSTEMFOLDER: folderId = 3; break;
 566         }
 567
 568         if(folderId == size_t(-1))
 569         {
 570                 qWarning("Invalid 'known' folder was requested!");
 571                 return *reinterpret_cast<QString*>(NULL);
 572         }
 573
 574         QReadLocker readLock(&g_known_folders_lock);
 575
 576         //Already in cache?
 577         if(!g_known_folders_map.isNull())
 578         {
 579                 if(g_known_folders_map->contains(folderId))
 580                 {
 581                         return g_known_folders_map->operator[](folderId);
 582                 }
 583         }
 584
 585         //Obtain write lock to initialize
 586         readLock.unlock();
 587         QWriteLocker writeLock(&g_known_folders_lock);
 588
 589         //Still not in cache?
 590         if(!g_known_folders_map.isNull())
 591         {
 592                 if(g_known_folders_map->contains(folderId))
 593                 {
 594                         return g_known_folders_map->operator[](folderId);
 595                 }
 596         }
 597
 598         //Initialize on first call
 599         if(g_known_folders_map.isNull())
 600         {
 601                 QLibrary shell32("shell32.dll");
 602                 if(shell32.load())
 603                 {
 604                         g_known_folders_fpGetFolderPath =      (SHGetFolderPath_t)      shell32.resolve("SHGetFolderPathW");
 605                         g_known_folders_fpGetKnownFolderPath = (SHGetKnownFolderPath_t) shell32.resolve("SHGetKnownFolderPath");
 606                 }
 607                 g_known_folders_map.reset(new QMap<size_t, QString>());
 608         }
 609
 610         QString folderPath;
 611
 612         //Now try to get the folder path!
 613         if(g_known_folders_fpGetKnownFolderPath)
 614         {
 615                 WCHAR *path = NULL;
 616                 if(g_known_folders_fpGetKnownFolderPath(s_folders[folderId].guid, KF_FLAG_CREATE, NULL, &path) == S_OK)
 617                 {
 618                         //MessageBoxW(0, path, L"SHGetKnownFolderPath", MB_TOPMOST);
 619                         QDir folderTemp = QDir(QDir::fromNativeSeparators(MUTILS_QSTR(path)));
 620                         if(folderTemp.exists())
 621                         {
 622                                 folderPath = folderTemp.canonicalPath();
 623                         }
 624                         CoTaskMemFree(path);
 625                 }
 626         }
 627         else if(g_known_folders_fpGetFolderPath)
 628         {
 629                 QScopedArrayPointer<WCHAR> path(new WCHAR[4096]);
 630                 if(g_known_folders_fpGetFolderPath(NULL, s_folders[folderId].csidl | CSIDL_FLAG_CREATE, NULL, NULL, path.data()) == S_OK)
 631                 {
 632                         //MessageBoxW(0, path, L"SHGetFolderPathW", MB_TOPMOST);
 633                         QDir folderTemp = QDir(QDir::fromNativeSeparators(MUTILS_QSTR(path.data())));
 634                         if(folderTemp.exists())
 635                         {
 636                                 folderPath = folderTemp.canonicalPath();
 637                         }
 638                 }
 639         }
 640
 641         //Update cache
 642         g_known_folders_map->insert(folderId, folderPath);
 643         return g_known_folders_map->operator[](folderId);
 644 }
 645
 646 ///////////////////////////////////////////////////////////////////////////////
 647 // CURRENT DATA & TIME
 648 ///////////////////////////////////////////////////////////////////////////////
 649
 650 QDate MUtils::OS::current_date(void)
 651 {
 652         const DWORD MAX_PROC = 1024;
 653         QScopedArrayPointer<DWORD> processes(new DWORD[MAX_PROC]);
 654         DWORD bytesReturned = 0;
 655
 656         if(!EnumProcesses(processes.data(), sizeof(DWORD) * MAX_PROC, &bytesReturned))
 657         {
 658                 return QDate::currentDate();
 659         }
 660
 661         const DWORD procCount = bytesReturned / sizeof(DWORD);
 662         ULARGE_INTEGER lastStartTime;
 663         memset(&lastStartTime, 0, sizeof(ULARGE_INTEGER));
 664
 665         for(DWORD i = 0; i < procCount; i++)
 666         {
 667                 if(HANDLE hProc = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, processes[i]))
 668                 {
 669                         FILETIME processTime[4];
 670                         if(GetProcessTimes(hProc, &processTime[0], &processTime[1], &processTime[2], &processTime[3]))
 671                         {
 672                                 ULARGE_INTEGER timeCreation;
 673                                 timeCreation.LowPart  = processTime[0].dwLowDateTime;
 674                                 timeCreation.HighPart = processTime[0].dwHighDateTime;
 675                                 if(timeCreation.QuadPart > lastStartTime.QuadPart)
 676                                 {
 677                                         lastStartTime.QuadPart = timeCreation.QuadPart;
 678                                 }
 679                         }
 680                         CloseHandle(hProc);
 681                 }
 682         }
 683
 684         FILETIME lastStartTime_fileTime;
 685         lastStartTime_fileTime.dwHighDateTime = lastStartTime.HighPart;
 686         lastStartTime_fileTime.dwLowDateTime  = lastStartTime.LowPart;
 687
 688         FILETIME lastStartTime_localTime;
 689         if(!FileTimeToLocalFileTime(&lastStartTime_fileTime, &lastStartTime_localTime))
 690         {
 691                 memcpy(&lastStartTime_localTime, &lastStartTime_fileTime, sizeof(FILETIME));
 692         }
 693
 694         SYSTEMTIME lastStartTime_system;
 695         if(!FileTimeToSystemTime(&lastStartTime_localTime, &lastStartTime_system))
 696         {
 697                 memset(&lastStartTime_system, 0, sizeof(SYSTEMTIME));
 698                 lastStartTime_system.wYear = 1970; lastStartTime_system.wMonth = lastStartTime_system.wDay = 1;
 699         }
 700
 701         const QDate currentDate = QDate::currentDate();
 702         const QDate processDate = QDate(lastStartTime_system.wYear, lastStartTime_system.wMonth, lastStartTime_system.wDay);
 703         return (currentDate >= processDate) ? currentDate : processDate;
 704 }
 705
 706 quint64 MUtils::OS::current_file_time(void)
 707 {
 708         FILETIME fileTime;
 709         GetSystemTimeAsFileTime(&fileTime);
 710
 711         ULARGE_INTEGER temp;
 712         temp.HighPart = fileTime.dwHighDateTime;
 713         temp.LowPart = fileTime.dwLowDateTime;
 714
 715         return temp.QuadPart;
 716 }
 717
 718 ///////////////////////////////////////////////////////////////////////////////
 719 // PROCESS ELEVATION
 720 ///////////////////////////////////////////////////////////////////////////////
 721
 722 static bool user_is_admin_helper(void)
 723 {
 724         HANDLE hToken = NULL;
 725         if(!OpenProcessToken(GetCurrentProcess(), TOKEN_QUERY, &hToken))
 726         {
 727                 return false;
 728         }
 729
 730         DWORD dwSize = 0;
 731         if(!GetTokenInformation(hToken, TokenGroups, NULL, 0, &dwSize))
 732         {
 733                 if(GetLastError() != ERROR_INSUFFICIENT_BUFFER)
 734                 {
 735                         CloseHandle(hToken);
 736                         return false;
 737                 }
 738         }
 739
 740         PTOKEN_GROUPS lpGroups = (PTOKEN_GROUPS) malloc(dwSize);
 741         if(!lpGroups)
 742         {
 743                 CloseHandle(hToken);
 744                 return false;
 745         }
 746
 747         if(!GetTokenInformation(hToken, TokenGroups, lpGroups, dwSize, &dwSize))
 748         {
 749                 free(lpGroups);
 750                 CloseHandle(hToken);
 751                 return false;
 752         }
 753
 754         PSID lpSid = NULL; SID_IDENTIFIER_AUTHORITY Authority = {SECURITY_NT_AUTHORITY};
 755         if(!AllocateAndInitializeSid(&Authority, 2, SECURITY_BUILTIN_DOMAIN_RID, DOMAIN_ALIAS_RID_ADMINS, 0, 0, 0, 0, 0, 0, &lpSid))
 756         {
 757                 free(lpGroups);
 758                 CloseHandle(hToken);
 759                 return false;
 760         }
 761
 762         bool bResult = false;
 763         for(DWORD i = 0; i < lpGroups->GroupCount; i++)
 764         {
 765                 if(EqualSid(lpSid, lpGroups->Groups[i].Sid))
 766                 {
 767                         bResult = true;
 768                         break;
 769                 }
 770         }
 771
 772         FreeSid(lpSid);
 773         free(lpGroups);
 774         CloseHandle(hToken);
 775         return bResult;
 776 }
 777
 778 bool MUtils::OS::is_elevated(bool *bIsUacEnabled)
 779 {
 780         if(bIsUacEnabled)
 781         {
 782                 *bIsUacEnabled = false;
 783         }
 784
 785         bool bIsProcessElevated = false;
 786         HANDLE hToken = NULL;
 787
 788         if(OpenProcessToken(GetCurrentProcess(), TOKEN_QUERY, &hToken))
 789         {
 790                 TOKEN_ELEVATION_TYPE tokenElevationType;
 791                 DWORD returnLength;
 792                 if(GetTokenInformation(hToken, TokenElevationType, &tokenElevationType, sizeof(TOKEN_ELEVATION_TYPE), &returnLength))
 793                 {
 794                         if(returnLength == sizeof(TOKEN_ELEVATION_TYPE))
 795                         {
 796                                 switch(tokenElevationType)
 797                                 {
 798                                 case TokenElevationTypeDefault:
 799                                         qDebug("Process token elevation type: Default -> UAC is disabled.\n");
 800                                         break;
 801                                 case TokenElevationTypeFull:
 802                                         qWarning("Process token elevation type: Full -> potential security risk!\n");
 803                                         bIsProcessElevated = true;
 804                                         if(bIsUacEnabled) *bIsUacEnabled = true;
 805                                         break;
 806                                 case TokenElevationTypeLimited:
 807                                         qDebug("Process token elevation type: Limited -> not elevated.\n");
 808                                         if(bIsUacEnabled) *bIsUacEnabled = true;
 809                                         break;
 810                                 default:
 811                                         qWarning("Unknown tokenElevationType value: %d", tokenElevationType);
 812                                         break;
 813                                 }
 814                         }
 815                         else
 816                         {
 817                                 qWarning("GetTokenInformation() return an unexpected size!");
 818                         }
 819                 }
 820                 CloseHandle(hToken);
 821         }
 822         else
 823         {
 824                 qWarning("Failed to open process token!");
 825         }
 826
 827         return bIsProcessElevated;
 828 }
 829
 830 bool MUtils::OS::user_is_admin(void)
 831 {
 832         bool isAdmin = false;
 833
 834         //Check for process elevation and UAC support first!
 835         if(MUtils::OS::is_elevated(&isAdmin))
 836         {
 837                 qWarning("Process is elevated -> user is admin!");
 838                 return true;
 839         }
 840
 841         //If not elevated and UAC is not available -> user must be in admin group!
 842         if(!isAdmin)
 843         {
 844                 qDebug("UAC is disabled/unavailable -> checking for Administrators group");
 845                 isAdmin = user_is_admin_helper();
 846         }
 847
 848         return isAdmin;
 849 }
 850
 851 ///////////////////////////////////////////////////////////////////////////////
 852 // NETWORK STATE
 853 ///////////////////////////////////////////////////////////////////////////////
 854
 855 int MUtils::OS::network_status(void)
 856 {
 857         DWORD dwFlags;
 858         const BOOL ret = IsNetworkAlive(&dwFlags);
 859         if(GetLastError() == 0)
 860         {
 861                 return (ret != FALSE) ? NETWORK_TYPE_YES : NETWORK_TYPE_NON;
 862         }
 863         return NETWORK_TYPE_ERR;
 864 }
 865
 866 ///////////////////////////////////////////////////////////////////////////////
 867 // MESSAGE HANDLER
 868 ///////////////////////////////////////////////////////////////////////////////
 869
 870 bool MUtils::OS::handle_os_message(const void *const message, long *result)
 871 {
 872         const MSG *const msg = reinterpret_cast<const MSG*>(message);
 873
 874         switch(msg->message)
 875         {
 876         case WM_QUERYENDSESSION:
 877                 qWarning("WM_QUERYENDSESSION message received!");
 878                 *result = MUtils::GUI::broadcast(MUtils::GUI::USER_EVENT_QUERYENDSESSION, false) ? TRUE : FALSE;
 879                 return true;
 880         case WM_ENDSESSION:
 881                 qWarning("WM_ENDSESSION message received!");
 882                 if(msg->wParam == TRUE)
 883                 {
 884                         MUtils::GUI::broadcast(MUtils::GUI::USER_EVENT_ENDSESSION, false);
 885                         MUtils::GUI::force_quit();
 886                         exit(1);
 887                 }
 888                 *result = 0;
 889                 return true;
 890         default:
 891                 /*ignore this message and let Qt handle it*/
 892                 return false;
 893         }
 894 }
 895
 896 ///////////////////////////////////////////////////////////////////////////////
 897 // SLEEP
 898 ///////////////////////////////////////////////////////////////////////////////
 899
 900 void MUtils::OS::sleep_ms(const size_t &duration)
 901 {
 902         Sleep((DWORD) duration);
 903 }
 904
 905 ///////////////////////////////////////////////////////////////////////////////
 906 // EXECUTABLE CHECK
 907 ///////////////////////////////////////////////////////////////////////////////
 908
 909 bool MUtils::OS::is_executable_file(const QString &path)
 910 {
 911         bool bIsExecutable = false;
 912         DWORD binaryType;
 913         if(GetBinaryType(MUTILS_WCHR(QDir::toNativeSeparators(path)), &binaryType))
 914         {
 915                 bIsExecutable = (binaryType == SCS_32BIT_BINARY || binaryType == SCS_64BIT_BINARY);
 916         }
 917         return bIsExecutable;
 918 }
 919
 920 ///////////////////////////////////////////////////////////////////////////////
 921 // HIBERNATION / SHUTDOWN
 922 ///////////////////////////////////////////////////////////////////////////////
 923
 924 bool MUtils::OS::is_hibernation_supported(void)
 925 {
 926         bool hibernationSupported = false;
 927
 928         SYSTEM_POWER_CAPABILITIES pwrCaps;
 929         SecureZeroMemory(&pwrCaps, sizeof(SYSTEM_POWER_CAPABILITIES));
 930
 931         if(GetPwrCapabilities(&pwrCaps))
 932         {
 933                 hibernationSupported = pwrCaps.SystemS4 && pwrCaps.HiberFilePresent;
 934         }
 935
 936         return hibernationSupported;
 937 }
 938
 939 bool MUtils::OS::shutdown_computer(const QString &message, const unsigned long timeout, const bool forceShutdown, const bool hibernate)
 940 {
 941         HANDLE hToken = NULL;
 942
 943         if(OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken))
 944         {
 945                 TOKEN_PRIVILEGES privileges;
 946                 memset(&privileges, 0, sizeof(TOKEN_PRIVILEGES));
 947                 privileges.PrivilegeCount = 1;
 948                 privileges.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
 949
 950                 if(LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME, &privileges.Privileges[0].Luid))
 951                 {
 952                         if(AdjustTokenPrivileges(hToken, FALSE, &privileges, NULL, NULL, NULL))
 953                         {
 954                                 if(hibernate)
 955                                 {
 956                                         if(SetSuspendState(TRUE, TRUE, TRUE))
 957                                         {
 958                                                 return true;
 959                                         }
 960                                 }
 961                                 const DWORD reason = SHTDN_REASON_MAJOR_APPLICATION | SHTDN_REASON_FLAG_PLANNED;
 962                                 return InitiateSystemShutdownEx(NULL, const_cast<wchar_t*>(MUTILS_WCHR(message)), timeout, forceShutdown ? TRUE : FALSE, FALSE, reason);
 963                         }
 964                 }
 965         }
 966
 967         return false;
 968 }
 969
 970 ///////////////////////////////////////////////////////////////////////////////
 971 // FREE DISKSPACE
 972 ///////////////////////////////////////////////////////////////////////////////
 973
 974 bool MUtils::OS::free_diskspace(const QString &path, quint64 &freeSpace)
 975 {
 976         ULARGE_INTEGER freeBytesAvailable, totalNumberOfBytes, totalNumberOfFreeBytes;
 977         if(GetDiskFreeSpaceExW(reinterpret_cast<const wchar_t*>(QDir::toNativeSeparators(path).utf16()), &freeBytesAvailable, &totalNumberOfBytes, &totalNumberOfFreeBytes))
 978         {
 979                 freeSpace = freeBytesAvailable.QuadPart;
 980                 return true;;
 981         }
 982
 983         freeSpace = -1;
 984         return false;
 985 }
 986
 987 ///////////////////////////////////////////////////////////////////////////////
 988 // SHELL OPEN
 989 ///////////////////////////////////////////////////////////////////////////////
 990
 991 bool MUtils::OS::shell_open(const QWidget *parent, const QString &url, const QString &parameters, const QString &directory, const bool explore)
 992 {
 993         return ((int) ShellExecuteW((parent ? parent->winId() : NULL), (explore ? L"explore" : L"open"), MUTILS_WCHR(url), ((!parameters.isEmpty()) ? MUTILS_WCHR(parameters) : NULL), ((!directory.isEmpty()) ? MUTILS_WCHR(directory) : NULL), SW_SHOW)) > 32;
 994 }
 995
 996 bool MUtils::OS::shell_open(const QWidget *parent, const QString &url, const bool explore)
 997 {
 998         return shell_open(parent, url, QString(), QString(), explore);
 999 }
1000
1001 ///////////////////////////////////////////////////////////////////////////////
1002 // OPEN MEDIA FILE
1003 ///////////////////////////////////////////////////////////////////////////////
1004
1005 bool MUtils::OS::open_media_file(const QString &mediaFilePath)
1006 {
1007         const static wchar_t *registryPrefix[2] = { L"SOFTWARE\\", L"SOFTWARE\\Wow6432Node\\" };
1008         const static wchar_t *registryKeys[3] =
1009         {
1010                 L"Microsoft\\Windows\\CurrentVersion\\Uninstall\\{97D341C8-B0D1-4E4A-A49A-C30B52F168E9}",
1011                 L"Microsoft\\Windows\\CurrentVersion\\Uninstall\\{DB9E4EAB-2717-499F-8D56-4CC8A644AB60}",
1012                 L"foobar2000"
1013         };
1014         const static wchar_t *appNames[4] = { L"smplayer_portable.exe", L"smplayer.exe", L"MPUI.exe", L"foobar2000.exe" };
1015         const static wchar_t *valueNames[2] = { L"InstallLocation", L"InstallDir" };
1016
1017         for(size_t i = 0; i < 3; i++)
1018         {
1019                 for(size_t j = 0; j < 2; j++)
1020                 {
1021                         QString mplayerPath;
1022                         HKEY registryKeyHandle = NULL;
1023
1024                         const QString currentKey = MUTILS_QSTR(registryPrefix[j]).append(MUTILS_QSTR(registryKeys[i]));
1025                         if(RegOpenKeyExW(HKEY_LOCAL_MACHINE, MUTILS_WCHR(currentKey), 0, KEY_READ, &registryKeyHandle) == ERROR_SUCCESS)
1026                         {
1027                                 for(size_t k = 0; k < 2; k++)
1028                                 {
1029                                         wchar_t Buffer[4096];
1030                                         DWORD BuffSize = sizeof(wchar_t*) * 4096;
1031                                         DWORD DataType = REG_NONE;
1032                                         if(RegQueryValueExW(registryKeyHandle, valueNames[k], 0, &DataType, reinterpret_cast<BYTE*>(Buffer), &BuffSize) == ERROR_SUCCESS)
1033                                         {
1034                                                 if((DataType == REG_SZ) || (DataType == REG_EXPAND_SZ) || (DataType == REG_LINK))
1035                                                 {
1036                                                         mplayerPath = MUTILS_QSTR(Buffer);
1037                                                         break;
1038                                                 }
1039                                         }
1040                                 }
1041                                 RegCloseKey(registryKeyHandle);
1042                         }
1043
1044                         if(!mplayerPath.isEmpty())
1045                         {
1046                                 QDir mplayerDir(mplayerPath);
1047                                 if(mplayerDir.exists())
1048                                 {
1049                                         for(size_t k = 0; k < 4; k++)
1050                                         {
1051                                                 if(mplayerDir.exists(MUTILS_QSTR(appNames[k])))
1052                                                 {
1053                                                         qDebug("Player found at:\n%s\n", MUTILS_UTF8(mplayerDir.absoluteFilePath(MUTILS_QSTR(appNames[k]))));
1054                                                         QProcess::startDetached(mplayerDir.absoluteFilePath(MUTILS_QSTR(appNames[k])), QStringList() << QDir::toNativeSeparators(mediaFilePath));
1055                                                         return true;
1056                                                 }
1057                                         }
1058                                 }
1059                         }
1060                 }
1061         }
1062         return false;
1063 }
1064
1065 ///////////////////////////////////////////////////////////////////////////////
1066 // DEBUGGER CHECK
1067 ///////////////////////////////////////////////////////////////////////////////
1068
1069 static bool change_process_priority_helper(const HANDLE hProcess, const int priority)
1070 {
1071         bool ok = false;
1072
1073         switch(qBound(-2, priority, 2))
1074         {
1075         case 2:
1076                 ok = (SetPriorityClass(hProcess, HIGH_PRIORITY_CLASS) == TRUE);
1077                 break;
1078         case 1:
1079                 if(!(ok = (SetPriorityClass(hProcess, ABOVE_NORMAL_PRIORITY_CLASS) == TRUE)))
1080                 {
1081                         ok = (SetPriorityClass(hProcess, HIGH_PRIORITY_CLASS) == TRUE);
1082                 }
1083                 break;
1084         case 0:
1085                 ok = (SetPriorityClass(hProcess, NORMAL_PRIORITY_CLASS) == TRUE);
1086                 break;
1087         case -1:
1088                 if(!(ok = (SetPriorityClass(hProcess, BELOW_NORMAL_PRIORITY_CLASS) == TRUE)))
1089                 {
1090                         ok = (SetPriorityClass(hProcess, IDLE_PRIORITY_CLASS) == TRUE);
1091                 }
1092                 break;
1093         case -2:
1094                 ok = (SetPriorityClass(hProcess, IDLE_PRIORITY_CLASS) == TRUE);
1095                 break;
1096         }
1097
1098         return ok;
1099 }
1100
1101 bool MUtils::OS::change_process_priority(const int priority)
1102 {
1103         return change_process_priority_helper(GetCurrentProcess(), priority);
1104 }
1105
1106 bool MUtils::OS::change_process_priority(const QProcess *proc, const int priority)
1107 {
1108         if(Q_PID qPid = proc->pid())
1109         {
1110                 return change_process_priority_helper(qPid->hProcess, priority);
1111         }
1112         else
1113         {
1114                 return false;
1115         }
1116 }
1117
1118 ///////////////////////////////////////////////////////////////////////////////
1119 // PROCESS ID
1120 ///////////////////////////////////////////////////////////////////////////////
1121
1122 quint32 MUtils::OS::process_id(const QProcess *const proc)
1123 {
1124         PROCESS_INFORMATION *procInf = proc->pid();
1125         return (procInf) ? procInf->dwProcessId : NULL;
1126 }
1127
1128 ///////////////////////////////////////////////////////////////////////////////
1129 // PROCESS SUSPEND/RESUME
1130 ///////////////////////////////////////////////////////////////////////////////
1131
1132 bool MUtils::OS::suspend_process(const QProcess *proc, const bool suspend)
1133 {
1134         if(Q_PID pid = proc->pid())
1135         {
1136                 if(suspend)
1137                 {
1138                         return (SuspendThread(pid->hThread) != ((DWORD) -1));
1139                 }
1140                 else
1141                 {
1142                         return (ResumeThread(pid->hThread)  != ((DWORD) -1));
1143                 }
1144         }
1145         else
1146         {
1147                 return false;
1148         }
1149 }
1150
1151 ///////////////////////////////////////////////////////////////////////////////
1152 // SYSTEM TIMER
1153 ///////////////////////////////////////////////////////////////////////////////
1154
1155 bool MUtils::OS::setup_timer_resolution(const quint32 &interval)
1156 {
1157         return timeBeginPeriod(interval) == TIMERR_NOERROR;
1158 }
1159
1160 bool MUtils::OS::reset_timer_resolution(const quint32 &interval)
1161 {
1162         return timeEndPeriod(interval) == TIMERR_NOERROR;
1163 }
1164
1165 ///////////////////////////////////////////////////////////////////////////////
1166 // SET FILE TIME
1167 ///////////////////////////////////////////////////////////////////////////////
1168
1169 static QScopedPointer<QDateTime> s_epoch;
1170 static QReadWriteLock            s_epochLock;
1171
1172 static const QDateTime *get_epoch(void)
1173 {
1174         QReadLocker rdLock(&s_epochLock);
1175
1176         if (s_epoch.isNull())
1177         {
1178                 rdLock.unlock();
1179                 QWriteLocker wrLock(&s_epochLock);
1180                 if (s_epoch.isNull())
1181                 {
1182                         s_epoch.reset(new QDateTime(QDate(1601, 1, 1), QTime(0, 0, 0, 0), Qt::UTC));
1183                 }
1184                 wrLock.unlock();
1185                 rdLock.relock();
1186         }
1187
1188         return s_epoch.data();
1189 }
1190
1191 static FILETIME *qt_time_to_file_time(FILETIME *const fileTime, const QDateTime &dateTime)
1192 {
1193         memset(fileTime, 0, sizeof(FILETIME));
1194
1195         if (const QDateTime *const epoch = get_epoch())
1196         {
1197                 const qint64 msecs = epoch->msecsTo(dateTime);
1198                 if (msecs > 0)
1199                 {
1200                         const quint64 ticks = 10000U * quint64(msecs);
1201                         fileTime->dwHighDateTime = ((ticks >> 32) & 0xFFFFFFFF);
1202                         fileTime->dwLowDateTime = (ticks & 0xFFFFFFFF);
1203                         return fileTime;
1204                 }
1205         }
1206
1207         return NULL;
1208 }
1209
1210 static bool set_file_time(const HANDLE hFile, const QDateTime &created, const QDateTime &lastMod, const QDateTime &lastAcc)
1211 {
1212         FILETIME ftCreated, ftLastMod, ftLastAcc;
1213
1214         FILETIME *const pCreated = created.isValid() ? qt_time_to_file_time(&ftCreated, created) : NULL;
1215         FILETIME *const pLastMod = lastMod.isValid() ? qt_time_to_file_time(&ftLastMod, lastMod) : NULL;
1216         FILETIME *const pLastAcc = lastAcc.isValid() ? qt_time_to_file_time(&ftLastAcc, lastAcc) : NULL;
1217
1218         if (pCreated || pLastMod || pLastAcc)
1219         {
1220                 return (SetFileTime(hFile, pCreated, pLastAcc, pLastMod) != FALSE);
1221         }
1222
1223         return false;
1224 }
1225
1226 bool MUtils::OS::set_file_time(const QFile &file, const QDateTime &created, const QDateTime &lastMod, const QDateTime &lastAcc)
1227 {
1228         const int fd = file.handle();
1229         if (fd >= 0)
1230         {
1231                 return set_file_time((HANDLE)_get_osfhandle(fd), created, lastMod, lastAcc);
1232         }
1233         return false;
1234 }
1235
1236 bool MUtils::OS::set_file_time(const QString &path, const QDateTime &created, const QDateTime &lastMod, const QDateTime &lastAcc)
1237 {
1238         const HANDLE hFile = CreateFileW(MUTILS_WCHR(path), FILE_WRITE_ATTRIBUTES, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0);
1239         bool okay = false;
1240         if ((hFile != NULL) && (hFile != INVALID_HANDLE_VALUE))
1241         {
1242                 okay = set_file_time(hFile, created, lastMod, lastAcc);
1243                 CloseHandle(hFile);
1244         }
1245         return okay;
1246 }
1247
1248 ///////////////////////////////////////////////////////////////////////////////
1249 // CHECK KEY STATE
1250 ///////////////////////////////////////////////////////////////////////////////
1251
1252 bool MUtils::OS::check_key_state_esc(void)
1253 {
1254         return (GetAsyncKeyState(VK_ESCAPE) & 0x0001) != 0;
1255 }
1256
1257 ///////////////////////////////////////////////////////////////////////////////
1258 // SHELL CHANGE NOTIFICATION
1259 ///////////////////////////////////////////////////////////////////////////////
1260
1261 void MUtils::OS::shell_change_notification(void)
1262 {
1263         SHChangeNotify(SHCNE_ASSOCCHANGED, SHCNF_IDLIST, NULL, NULL);
1264 }
1265
1266 ///////////////////////////////////////////////////////////////////////////////
1267 // WOW64 REDIRECTION
1268 ///////////////////////////////////////////////////////////////////////////////
1269
1270 typedef BOOL (_stdcall *Wow64DisableWow64FsRedirectionFun)(void *OldValue);
1271 typedef BOOL (_stdcall *Wow64RevertWow64FsRedirectionFun )(void *OldValue);
1272
1273 static QReadWriteLock                    g_wow64redir_lock;
1274 static QScopedPointer<QLibrary>          g_wow64redir_kernel32;
1275 static Wow64DisableWow64FsRedirectionFun g_wow64redir_disable = NULL;
1276 static Wow64RevertWow64FsRedirectionFun  g_wow64redir_revert  = NULL;
1277
1278 static bool wow64fsredir_init()
1279 {
1280         QWriteLocker writeLock(&g_wow64redir_lock);
1281         if(g_wow64redir_disable && g_wow64redir_revert)
1282         {
1283                 return true; /*already initialized*/
1284         }
1285
1286         if(g_wow64redir_kernel32.isNull())
1287         {
1288                 g_wow64redir_kernel32.reset(new QLibrary("kernel32.dll"));
1289         }
1290
1291         if(!g_wow64redir_kernel32->isLoaded())
1292         {
1293                 if(!g_wow64redir_kernel32->load())
1294                 {
1295                         return false; /*faild to load kernel32.dll*/
1296                 }
1297         }
1298
1299         g_wow64redir_disable = (Wow64DisableWow64FsRedirectionFun) g_wow64redir_kernel32->resolve("Wow64DisableWow64FsRedirection");
1300         g_wow64redir_revert  = (Wow64RevertWow64FsRedirectionFun)  g_wow64redir_kernel32->resolve("Wow64RevertWow64FsRedirection");
1301
1302         return (g_wow64redir_disable && g_wow64redir_revert);
1303 }
1304
1305 #define WOW64FSREDIR_INIT(RDLOCK) do \
1306 { \
1307         while(!(g_wow64redir_disable && g_wow64redir_revert)) \
1308         { \
1309                 (RDLOCK).unlock(); \
1310                 if(!wow64fsredir_init()) return false; \
1311                 (RDLOCK).relock(); \
1312         } \
1313 } \
1314 while(0)
1315
1316 bool MUtils::OS::wow64fsredir_disable(void *oldValue)
1317 {
1318         QReadLocker readLock(&g_wow64redir_lock);
1319         WOW64FSREDIR_INIT(readLock);
1320         if(g_wow64redir_disable(oldValue))
1321         {
1322                 return true;
1323         }
1324         return false;
1325 }
1326
1327 bool MUtils::OS::wow64fsredir_revert(void *oldValue)
1328 {
1329         QReadLocker readLock(&g_wow64redir_lock);
1330         WOW64FSREDIR_INIT(readLock);
1331         if(g_wow64redir_revert(oldValue))
1332         {
1333                 return true;
1334         }
1335         return false;
1336 }
1337
1338 ///////////////////////////////////////////////////////////////////////////////
1339 // DEBUGGER CHECK
1340 ///////////////////////////////////////////////////////////////////////////////
1341
1342 #if (!(MUTILS_DEBUG))
1343 static __forceinline bool is_debugger_present(void)
1344 {
1345         __try
1346         {
1347                 CloseHandle((HANDLE)((DWORD_PTR)-3));
1348         }
1349         __except(1)
1350         {
1351                 return true;
1352         }
1353
1354         BOOL bHaveDebugger = FALSE;
1355         if(CheckRemoteDebuggerPresent(GetCurrentProcess(), &bHaveDebugger))
1356         {
1357                 if(bHaveDebugger) return true;
1358         }
1359
1360         return IsDebuggerPresent();
1361 }
1362 static __forceinline bool check_debugger_helper(void)
1363 {
1364         if(is_debugger_present())
1365         {
1366                 MUtils::OS::fatal_exit(L"Not a debug build. Please unload debugger and try again!");
1367                 return true;
1368         }
1369         return false;
1370 }
1371 #else
1372 #define check_debugger_helper() (false)
1373 #endif
1374
1375 void MUtils::OS::check_debugger(void)
1376 {
1377         check_debugger_helper();
1378 }
1379
1380 static volatile bool g_debug_check = check_debugger_helper();
1381
1382 ///////////////////////////////////////////////////////////////////////////////
1383 // FATAL EXIT
1384 ///////////////////////////////////////////////////////////////////////////////
1385
1386 static MUtils::Internal::CriticalSection g_fatal_exit_lock;
1387 static volatile bool g_fatal_exit_flag = true;
1388
1389 static DWORD WINAPI fatal_exit_helper(LPVOID lpParameter)
1390 {
1391         MUtils::OS::system_message_err(L"GURU MEDITATION", (LPWSTR) lpParameter);
1392         return 0;
1393 }
1394
1395 void MUtils::OS::fatal_exit(const wchar_t* const errorMessage)
1396 {
1397         g_fatal_exit_lock.enter();
1398
1399         if(!g_fatal_exit_flag)
1400         {
1401                 return; /*prevent recursive invocation*/
1402         }
1403
1404         g_fatal_exit_flag = false;
1405
1406         if(g_main_thread_id != GetCurrentThreadId())
1407         {
1408                 if(HANDLE hThreadMain = OpenThread(THREAD_SUSPEND_RESUME, FALSE, g_main_thread_id))
1409                 {
1410                         SuspendThread(hThreadMain); /*stop main thread*/
1411                 }
1412         }
1413
1414         if(HANDLE hThread = CreateThread(NULL, 0, fatal_exit_helper, (LPVOID) errorMessage, 0, NULL))
1415         {
1416                 WaitForSingleObject(hThread, INFINITE);
1417         }
1418
1419         for(;;)
1420         {
1421                 TerminateProcess(GetCurrentProcess(), 666);
1422         }
1423 }
1424
1425 ///////////////////////////////////////////////////////////////////////////////