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// Windows/FileSystem.cpp
#include "StdAfx.h"
#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 {
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));
}
}
typedef BOOL (WINAPI * GetDiskFreeSpaceExW_Pointer)(
LPCWSTR lpDirectoryName, // directory name
PULARGE_INTEGER lpFreeBytesAvailable, // bytes available to caller
PULARGE_INTEGER lpTotalNumberOfBytes, // bytes on disk
PULARGE_INTEGER lpTotalNumberOfFreeBytes // free bytes on disk
);
bool MyGetDiskFreeSpace(CFSTR rootPath, UInt64 &clusterSize, UInt64 &totalSize, UInt64 &freeSize)
{
DWORD numSectorsPerCluster, bytesPerSector, numFreeClusters, numClusters;
bool sizeIsDetected = false;
#ifndef _UNICODE
if (!g_IsNT)
{
if (!::GetDiskFreeSpace(fs2fas(rootPath), &numSectorsPerCluster, &bytesPerSector, &numFreeClusters, &numClusters))
return false;
}
else
#endif
{
GetDiskFreeSpaceExW_Pointer pGetDiskFreeSpaceEx = (GetDiskFreeSpaceExW_Pointer)GetProcAddress(
GetModuleHandle(TEXT("kernel32.dll")), "GetDiskFreeSpaceExW");
if (pGetDiskFreeSpaceEx)
{
ULARGE_INTEGER freeBytesToCaller2, totalSize2, freeSize2;
sizeIsDetected = BOOLToBool(pGetDiskFreeSpaceEx(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;
}
}}}
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