Warning, file /utilities/isoimagewriter/isoimagewriter/physicaldevice.cpp was not indexed or was modified since last indexation (in which case cross-reference links may be missing, inaccurate or erroneous).
0001 /* 0002 SPDX-FileCopyrightText: 2016 ROSA 0003 SPDX-License-Identifier: GPL-3.0-or-later 0004 */ 0005 0006 //////////////////////////////////////////////////////////////////////////////// 0007 // Implementation of PhysicalDevice 0008 0009 #include <KLocalizedString> 0010 0011 #include "physicaldevice.h" 0012 0013 PhysicalDevice::PhysicalDevice(const QString& name) : 0014 QFile(name) 0015 { 0016 } 0017 0018 // Opens the selected device in WriteOnly mode 0019 bool PhysicalDevice::open() 0020 { 0021 #if defined(Q_OS_WIN32) 0022 DWORD bret; 0023 0024 // In Windows QFile with write mode uses disposition OPEN_ALWAYS, but WinAPI 0025 // requires OPEN_EXISTING for physical devices. Therefore we have to use native API. 0026 m_fileHandle = CreateFile( 0027 reinterpret_cast<const wchar_t*>(fileName().utf16()), 0028 GENERIC_WRITE, 0029 FILE_SHARE_READ | FILE_SHARE_WRITE, 0030 NULL, 0031 OPEN_EXISTING, 0032 FILE_FLAG_WRITE_THROUGH | FILE_FLAG_NO_BUFFERING, 0033 NULL 0034 ); 0035 if (m_fileHandle == INVALID_HANDLE_VALUE) 0036 { 0037 setErrorString(errorMessageFromCode()); 0038 return false; 0039 } 0040 // Lock the opened device 0041 if (!DeviceIoControl(m_fileHandle, FSCTL_LOCK_VOLUME, NULL, 0, NULL, 0, &bret, NULL)) 0042 { 0043 setErrorString(formatErrorMessageFromCode(i18n("Could not acquire lock:"))); 0044 return false; 0045 } 0046 // Construct QFile around the device handle; close() will now close the handle automatically 0047 if (QFile::open(_open_osfhandle(reinterpret_cast<intptr_t>(m_fileHandle), 0), QIODevice::WriteOnly | QIODevice::Unbuffered, AutoCloseHandle)) 0048 return true; 0049 else 0050 { 0051 CloseHandle(m_fileHandle); 0052 return false; 0053 } 0054 #elif defined(Q_OS_LINUX) || defined(Q_OS_MAC) 0055 // Simply use QFile, it works fine in Linux 0056 // TODO: Use system call open with O_DIRECT 0057 return QFile::open(QIODevice::WriteOnly); 0058 #else 0059 return false; 0060 #endif 0061 }