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// Windows/FileSystem.cpp
#include "StdAfx.h"
#ifndef UNDER_CE
#ifndef _UNICODE
#include "../Common/StringConvert.h"
#endif
#include "FileSystem.h"
#include "Defs.h"
#ifndef _UNICODE
extern bool g_IsNT;
#endif
namespace NWindows {
namespace NFile {
namespace NSystem {
#ifdef _WIN32
bool MyGetVolumeInformation(
CFSTR rootPath,
UString &volumeName,
LPDWORD volumeSerialNumber,
LPDWORD maximumComponentLength,
LPDWORD fileSystemFlags,
UString &fileSystemName)
{
BOOL res;
#ifndef _UNICODE
if (!g_IsNT)
{
TCHAR v[MAX_PATH + 2]; v[0] = 0;
TCHAR f[MAX_PATH + 2]; f[0] = 0;
res = GetVolumeInformation(fs2fas(rootPath),
v, MAX_PATH,
volumeSerialNumber, maximumComponentLength, fileSystemFlags,
f, MAX_PATH);
volumeName = MultiByteToUnicodeString(v);
fileSystemName = MultiByteToUnicodeString(f);
}
else
#endif
{
WCHAR v[MAX_PATH + 2]; v[0] = 0;
WCHAR f[MAX_PATH + 2]; f[0] = 0;
res = GetVolumeInformationW(fs2us(rootPath),
v, MAX_PATH,
volumeSerialNumber, maximumComponentLength, fileSystemFlags,
f, MAX_PATH);
volumeName = v;
fileSystemName = f;
}
return BOOLToBool(res);
}
UINT MyGetDriveType(CFSTR pathName)
{
#ifndef _UNICODE
if (!g_IsNT)
{
return GetDriveType(fs2fas(pathName));
}
else
#endif
{
return GetDriveTypeW(fs2us(pathName));
}
}
#if !defined(Z7_WIN32_WINNT_MIN) || Z7_WIN32_WINNT_MIN < 0x0400
// GetDiskFreeSpaceEx requires Windows95-OSR2, NT4
#define Z7_USE_DYN_GetDiskFreeSpaceEx
#endif
#ifdef Z7_USE_DYN_GetDiskFreeSpaceEx
typedef BOOL (WINAPI * Func_GetDiskFreeSpaceExA)(
LPCSTR lpDirectoryName, // directory name
PULARGE_INTEGER lpFreeBytesAvailable, // bytes available to caller
PULARGE_INTEGER lpTotalNumberOfBytes, // bytes on disk
PULARGE_INTEGER lpTotalNumberOfFreeBytes // free bytes on disk
);
typedef BOOL (WINAPI * Func_GetDiskFreeSpaceExW)(
LPCWSTR lpDirectoryName, // directory name
PULARGE_INTEGER lpFreeBytesAvailable, // bytes available to caller
PULARGE_INTEGER lpTotalNumberOfBytes, // bytes on disk
PULARGE_INTEGER lpTotalNumberOfFreeBytes // free bytes on disk
);
#endif
bool MyGetDiskFreeSpace(CFSTR rootPath, UInt64 &clusterSize, UInt64 &totalSize, UInt64 &freeSize)
{
DWORD numSectorsPerCluster, bytesPerSector, numFreeClusters, numClusters;
bool sizeIsDetected = false;
#ifndef _UNICODE
if (!g_IsNT)
{
#ifdef Z7_USE_DYN_GetDiskFreeSpaceEx
const
Func_GetDiskFreeSpaceExA f = Z7_GET_PROC_ADDRESS(
Func_GetDiskFreeSpaceExA, GetModuleHandle(TEXT("kernel32.dll")),
"GetDiskFreeSpaceExA");
if (f)
#endif
{
ULARGE_INTEGER freeBytesToCaller2, totalSize2, freeSize2;
sizeIsDetected = BOOLToBool(
#ifdef Z7_USE_DYN_GetDiskFreeSpaceEx
f
#else
GetDiskFreeSpaceExA
#endif
(fs2fas(rootPath), &freeBytesToCaller2, &totalSize2, &freeSize2));
totalSize = totalSize2.QuadPart;
freeSize = freeSize2.QuadPart;
}
if (!::GetDiskFreeSpace(fs2fas(rootPath), &numSectorsPerCluster, &bytesPerSector, &numFreeClusters, &numClusters))
return false;
}
else
#endif
{
#ifdef Z7_USE_DYN_GetDiskFreeSpaceEx
const
Func_GetDiskFreeSpaceExW f = Z7_GET_PROC_ADDRESS(
Func_GetDiskFreeSpaceExW, GetModuleHandle(TEXT("kernel32.dll")),
"GetDiskFreeSpaceExW");
if (f)
#endif
{
ULARGE_INTEGER freeBytesToCaller2, totalSize2, freeSize2;
sizeIsDetected = BOOLToBool(
#ifdef Z7_USE_DYN_GetDiskFreeSpaceEx
f
#else
GetDiskFreeSpaceExW
#endif
(fs2us(rootPath), &freeBytesToCaller2, &totalSize2, &freeSize2));
totalSize = totalSize2.QuadPart;
freeSize = freeSize2.QuadPart;
}
if (!::GetDiskFreeSpaceW(fs2us(rootPath), &numSectorsPerCluster, &bytesPerSector, &numFreeClusters, &numClusters))
return false;
}
clusterSize = (UInt64)bytesPerSector * (UInt64)numSectorsPerCluster;
if (!sizeIsDetected)
{
totalSize = clusterSize * (UInt64)numClusters;
freeSize = clusterSize * (UInt64)numFreeClusters;
}
return true;
}
#endif
/*
bool Is_File_LimitedBy_4GB(CFSTR _path, bool &isFsDetected)
{
isFsDetected = false;
FString path (_path);
path.DeleteFrom(NName::GetRootPrefixSize(path));
// GetVolumeInformation supports super paths.
// NName::If_IsSuperPath_RemoveSuperPrefix(path);
if (!path.IsEmpty())
{
DWORD volumeSerialNumber, maximumComponentLength, fileSystemFlags;
UString volName, fileSystemName;
if (MyGetVolumeInformation(path, volName,
&volumeSerialNumber, &maximumComponentLength, &fileSystemFlags,
fileSystemName))
{
isFsDetected = true;
if (fileSystemName.IsPrefixedBy_Ascii_NoCase("fat"))
return true;
}
}
return false;
}
*/
}}}
#endif
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