diff options
author | 2015-01-11 08:10:25 +0100 | |
---|---|---|
committer | 2015-01-11 08:10:25 +0100 | |
commit | 6a23c2f3b766cf4fc7028628f76b5ff9396383f0 (patch) | |
tree | a01e16637118ae0c80f337119898bdf18f081e24 /3rdparty/lzma/CPP/Windows/FileIO.cpp | |
parent | 45ac9b351e0076c371de4c7453f59567b27b1cb6 (diff) |
Added full lzma sdk source (nw)
Diffstat (limited to '3rdparty/lzma/CPP/Windows/FileIO.cpp')
-rw-r--r-- | 3rdparty/lzma/CPP/Windows/FileIO.cpp | 369 |
1 files changed, 369 insertions, 0 deletions
diff --git a/3rdparty/lzma/CPP/Windows/FileIO.cpp b/3rdparty/lzma/CPP/Windows/FileIO.cpp new file mode 100644 index 00000000000..e8f98747c8f --- /dev/null +++ b/3rdparty/lzma/CPP/Windows/FileIO.cpp @@ -0,0 +1,369 @@ +// Windows/FileIO.cpp + +#include "StdAfx.h" + +#include "FileIO.h" + +#ifndef _UNICODE +extern bool g_IsNT; +#endif + +namespace NWindows { +namespace NFile { + +#ifdef SUPPORT_DEVICE_FILE + +bool IsDeviceName(CFSTR n) +{ + #ifdef UNDER_CE + int len = (int)MyStringLen(n); + if (len < 5 || len > 5 || memcmp(n, FTEXT("DSK"), 3 * sizeof(FCHAR)) != 0) + return false; + if (n[4] != ':') + return false; + // for reading use SG_REQ sg; if (DeviceIoControl(dsk, IOCTL_DISK_READ)); + #else + if (n[0] != '\\' || n[1] != '\\' || n[2] != '.' || n[3] != '\\') + return false; + int len = (int)MyStringLen(n); + if (len == 6 && n[5] == ':') + return true; + if (len < 18 || len > 22 || memcmp(n + 4, FTEXT("PhysicalDrive"), 13 * sizeof(FCHAR)) != 0) + return false; + for (int i = 17; i < len; i++) + if (n[i] < '0' || n[i] > '9') + return false; + #endif + return true; +} + +#endif + +#if defined(WIN_LONG_PATH) && defined(_UNICODE) +#define WIN_LONG_PATH2 +#endif + +#ifdef WIN_LONG_PATH +bool GetLongPathBase(CFSTR s, UString &res) +{ + res.Empty(); + int len = MyStringLen(s); + FChar c = s[0]; + if (len < 1 || c == '\\' || c == '.' && (len == 1 || len == 2 && s[1] == '.')) + return true; + UString curDir; + bool isAbs = false; + if (len > 3) + isAbs = (s[1] == ':' && s[2] == '\\' && (c >= 'a' && c <= 'z' || c >= 'A' && c <= 'Z')); + + if (!isAbs) + { + WCHAR temp[MAX_PATH + 2]; + temp[0] = 0; + DWORD needLength = ::GetCurrentDirectoryW(MAX_PATH + 1, temp); + if (needLength == 0 || needLength > MAX_PATH) + return false; + curDir = temp; + if (curDir.Back() != L'\\') + curDir += L'\\'; + } + res = UString(L"\\\\?\\") + curDir + fs2us(s); + return true; +} + +bool GetLongPath(CFSTR path, UString &longPath) +{ + if (GetLongPathBase(path, longPath)) + return !longPath.IsEmpty(); + return false; +} +#endif + +namespace NIO { + +CFileBase::~CFileBase() { Close(); } + +bool CFileBase::Create(CFSTR fileName, DWORD desiredAccess, + DWORD shareMode, DWORD creationDisposition, DWORD flagsAndAttributes) +{ + if (!Close()) + return false; + + #ifdef SUPPORT_DEVICE_FILE + IsDeviceFile = false; + #endif + + #ifndef _UNICODE + if (!g_IsNT) + { + _handle = ::CreateFile(fs2fas(fileName), desiredAccess, shareMode, + (LPSECURITY_ATTRIBUTES)NULL, creationDisposition, flagsAndAttributes, (HANDLE)NULL); + } + else + #endif + { + _handle = ::CreateFileW(fs2us(fileName), desiredAccess, shareMode, + (LPSECURITY_ATTRIBUTES)NULL, creationDisposition, flagsAndAttributes, (HANDLE)NULL); + #ifdef WIN_LONG_PATH + if (_handle == INVALID_HANDLE_VALUE) + { + UString longPath; + if (GetLongPath(fileName, longPath)) + _handle = ::CreateFileW(longPath, desiredAccess, shareMode, + (LPSECURITY_ATTRIBUTES)NULL, creationDisposition, flagsAndAttributes, (HANDLE)NULL); + } + #endif + } + return (_handle != INVALID_HANDLE_VALUE); +} + +bool CFileBase::Close() +{ + if (_handle == INVALID_HANDLE_VALUE) + return true; + if (!::CloseHandle(_handle)) + return false; + _handle = INVALID_HANDLE_VALUE; + return true; +} + +bool CFileBase::GetPosition(UInt64 &position) const +{ + return Seek(0, FILE_CURRENT, position); +} + +bool CFileBase::GetLength(UInt64 &length) const +{ + #ifdef SUPPORT_DEVICE_FILE + if (IsDeviceFile && LengthDefined) + { + length = Length; + return true; + } + #endif + + DWORD sizeHigh; + DWORD sizeLow = ::GetFileSize(_handle, &sizeHigh); + if (sizeLow == 0xFFFFFFFF) + if (::GetLastError() != NO_ERROR) + return false; + length = (((UInt64)sizeHigh) << 32) + sizeLow; + return true; +} + +bool CFileBase::Seek(Int64 distanceToMove, DWORD moveMethod, UInt64 &newPosition) const +{ + #ifdef SUPPORT_DEVICE_FILE + if (IsDeviceFile && LengthDefined && moveMethod == FILE_END) + { + distanceToMove += Length; + moveMethod = FILE_BEGIN; + } + #endif + + LARGE_INTEGER value; + value.QuadPart = distanceToMove; + value.LowPart = ::SetFilePointer(_handle, value.LowPart, &value.HighPart, moveMethod); + if (value.LowPart == 0xFFFFFFFF) + if (::GetLastError() != NO_ERROR) + return false; + newPosition = value.QuadPart; + return true; +} + +bool CFileBase::Seek(UInt64 position, UInt64 &newPosition) +{ + return Seek(position, FILE_BEGIN, newPosition); +} + +bool CFileBase::SeekToBegin() +{ + UInt64 newPosition; + return Seek(0, newPosition); +} + +bool CFileBase::SeekToEnd(UInt64 &newPosition) +{ + return Seek(0, FILE_END, newPosition); +} + +/* +bool CFileBase::GetFileInformation(CByHandleFileInfo &fi) const +{ + BY_HANDLE_FILE_INFORMATION wfi; + if (!::GetFileInformationByHandle(_handle, &wfi)) + return false; + fi.Attrib = wfi.dwFileAttributes; + fi.CTime = wfi.ftCreationTime; + fi.ATime = wfi.ftLastAccessTime; + fi.MTime = wfi.ftLastWriteTime; + fi.Size = (((UInt64)wfi.nFileSizeHigh) << 32) + wfi.nFileSizeLow; + fi.VolumeSerialNumber = wfi.dwVolumeSerialNumber; + fi.NumLinks = wfi.nNumberOfLinks; + fi.FileIndex = (((UInt64)wfi.nFileIndexHigh) << 32) + wfi.nFileIndexLow; + return true; +} +*/ + +///////////////////////// +// CInFile + +#ifdef SUPPORT_DEVICE_FILE +void CInFile::GetDeviceLength() +{ + if (_handle != INVALID_HANDLE_VALUE && IsDeviceFile) + { + #ifdef UNDER_CE + LengthDefined = true; + Length = 128 << 20; + + #else + PARTITION_INFORMATION partInfo; + LengthDefined = true; + Length = 0; + + if (GetPartitionInfo(&partInfo)) + Length = partInfo.PartitionLength.QuadPart; + else + { + DISK_GEOMETRY geom; + if (!GetGeometry(&geom)) + if (!GetCdRomGeometry(&geom)) + LengthDefined = false; + if (LengthDefined) + Length = geom.Cylinders.QuadPart * geom.TracksPerCylinder * geom.SectorsPerTrack * geom.BytesPerSector; + } + // SeekToBegin(); + #endif + } +} + +// ((desiredAccess & (FILE_WRITE_DATA | FILE_APPEND_DATA | GENERIC_WRITE)) == 0 && + +#define MY_DEVICE_EXTRA_CODE \ + IsDeviceFile = IsDeviceName(fileName); \ + GetDeviceLength(); +#else +#define MY_DEVICE_EXTRA_CODE +#endif + +bool CInFile::Open(CFSTR fileName, DWORD shareMode, DWORD creationDisposition, DWORD flagsAndAttributes) +{ + bool res = Create(fileName, GENERIC_READ, shareMode, creationDisposition, flagsAndAttributes); + MY_DEVICE_EXTRA_CODE + return res; +} + +bool CInFile::OpenShared(CFSTR fileName, bool shareForWrite) +{ return Open(fileName, FILE_SHARE_READ | (shareForWrite ? FILE_SHARE_WRITE : 0), OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL); } + +bool CInFile::Open(CFSTR fileName) + { return OpenShared(fileName, false); } + +// ReadFile and WriteFile functions in Windows have BUG: +// If you Read or Write 64MB or more (probably min_failure_size = 64MB - 32KB + 1) +// from/to Network file, it returns ERROR_NO_SYSTEM_RESOURCES +// (Insufficient system resources exist to complete the requested service). + +// Probably in some version of Windows there are problems with other sizes: +// for 32 MB (maybe also for 16 MB). +// And message can be "Network connection was lost" + +static UInt32 kChunkSizeMax = (1 << 22); + +bool CInFile::Read1(void *data, UInt32 size, UInt32 &processedSize) +{ + DWORD processedLoc = 0; + bool res = BOOLToBool(::ReadFile(_handle, data, size, &processedLoc, NULL)); + processedSize = (UInt32)processedLoc; + return res; +} + +bool CInFile::ReadPart(void *data, UInt32 size, UInt32 &processedSize) +{ + if (size > kChunkSizeMax) + size = kChunkSizeMax; + return Read1(data, size, processedSize); +} + +bool CInFile::Read(void *data, UInt32 size, UInt32 &processedSize) +{ + processedSize = 0; + do + { + UInt32 processedLoc = 0; + bool res = ReadPart(data, size, processedLoc); + processedSize += processedLoc; + if (!res) + return false; + if (processedLoc == 0) + return true; + data = (void *)((unsigned char *)data + processedLoc); + size -= processedLoc; + } + while (size > 0); + return true; +} + +///////////////////////// +// COutFile + +static inline DWORD GetCreationDisposition(bool createAlways) + { return createAlways? CREATE_ALWAYS: CREATE_NEW; } + +bool COutFile::Open(CFSTR fileName, DWORD shareMode, DWORD creationDisposition, DWORD flagsAndAttributes) + { return CFileBase::Create(fileName, GENERIC_WRITE, shareMode, creationDisposition, flagsAndAttributes); } + +bool COutFile::Open(CFSTR fileName, DWORD creationDisposition) + { return Open(fileName, FILE_SHARE_READ, creationDisposition, FILE_ATTRIBUTE_NORMAL); } + +bool COutFile::Create(CFSTR fileName, bool createAlways) + { return Open(fileName, GetCreationDisposition(createAlways)); } + +bool COutFile::SetTime(const FILETIME *cTime, const FILETIME *aTime, const FILETIME *mTime) + { return BOOLToBool(::SetFileTime(_handle, cTime, aTime, mTime)); } + +bool COutFile::SetMTime(const FILETIME *mTime) { return SetTime(NULL, NULL, mTime); } + +bool COutFile::WritePart(const void *data, UInt32 size, UInt32 &processedSize) +{ + if (size > kChunkSizeMax) + size = kChunkSizeMax; + DWORD processedLoc = 0; + bool res = BOOLToBool(::WriteFile(_handle, data, size, &processedLoc, NULL)); + processedSize = (UInt32)processedLoc; + return res; +} + +bool COutFile::Write(const void *data, UInt32 size, UInt32 &processedSize) +{ + processedSize = 0; + do + { + UInt32 processedLoc = 0; + bool res = WritePart(data, size, processedLoc); + processedSize += processedLoc; + if (!res) + return false; + if (processedLoc == 0) + return true; + data = (const void *)((const unsigned char *)data + processedLoc); + size -= processedLoc; + } + while (size > 0); + return true; +} + +bool COutFile::SetEndOfFile() { return BOOLToBool(::SetEndOfFile(_handle)); } + +bool COutFile::SetLength(UInt64 length) +{ + UInt64 newPosition; + if (!Seek(length, newPosition)) + return false; + if (newPosition != length) + return false; + return SetEndOfFile(); +} + +}}} |