diff options
Diffstat (limited to 'src/Common/Dlgcode.c')
| -rw-r--r-- | src/Common/Dlgcode.c | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/src/Common/Dlgcode.c b/src/Common/Dlgcode.c index 30b76e82..cf85682d 100644 --- a/src/Common/Dlgcode.c +++ b/src/Common/Dlgcode.c @@ -21,6 +21,7 @@ #include <sys/stat.h>
#include <stdlib.h>
#include <time.h>
+#include <tchar.h>
#include "Resource.h"
@@ -6230,6 +6231,48 @@ void BroadcastDeviceChange (WPARAM message, int nDosDriveNo, DWORD driveMap) IgnoreWmDeviceChange = FALSE;
}
+BOOL GetPhysicalDriveAlignment(UINT nDriveNumber, STORAGE_ACCESS_ALIGNMENT_DESCRIPTOR* pDesc)
+{
+ DWORD dwRet = NO_ERROR;
+
+ if (!pDesc)
+ return FALSE;
+
+ // Format physical drive path (may be '\\.\PhysicalDrive0', '\\.\PhysicalDrive1' and so on).
+ TCHAR strDrivePath[512];
+ StringCbPrintf(strDrivePath, sizeof(strDrivePath), _T("\\\\.\\PhysicalDrive%u"), nDriveNumber);
+
+ // Get a handle to physical drive
+ HANDLE hDevice = ::CreateFile(strDrivePath, 0, FILE_SHARE_READ,
+ NULL, OPEN_EXISTING, 0, NULL);
+
+ if(INVALID_HANDLE_VALUE == hDevice)
+ return FALSE;
+
+ // Set the input data structure
+ STORAGE_PROPERTY_QUERY storagePropertyQuery;
+ ZeroMemory(&storagePropertyQuery, sizeof(STORAGE_PROPERTY_QUERY));
+ storagePropertyQuery.PropertyId = StorageAccessAlignmentProperty;
+ storagePropertyQuery.QueryType = PropertyStandardQuery;
+
+ // Get the necessary output buffer size
+ DWORD dwBytesReturned = 0;
+ BOOL bRet = ::DeviceIoControl(hDevice, IOCTL_STORAGE_QUERY_PROPERTY,
+ &storagePropertyQuery, sizeof(STORAGE_PROPERTY_QUERY),
+ pDesc, sizeof(STORAGE_ACCESS_ALIGNMENT_DESCRIPTOR),
+ &dwBytesReturned, NULL);
+ dwRet = ::GetLastError();
+ ::CloseHandle(hDevice);
+
+ if (!bRet)
+ {
+ SetLastError (dwRet);
+ return FALSE;
+ }
+ else
+ return TRUE;
+}
+
/************************************************************/
// implementation of the generic wait dialog mechanism
@@ -6477,7 +6520,42 @@ retry: {
DWORD bps, flags, d;
if (GetDiskFreeSpace (root, &d, &bps, &d, &d))
+ {
mount.BytesPerSector = bps;
+ mount.BytesPerPhysicalSector = bps;
+ }
+
+ if (IsOSAtLeast (WIN_VISTA))
+ {
+ if ( (strlen(root) >= 2)
+ && (root[1] == ':')
+ && (toupper(root[0]) >= 'A' && toupper(root[0]) <= 'Z')
+ )
+ {
+ string drivePath = "\\\\.\\X:";
+ HANDLE dev = INVALID_HANDLE_VALUE;
+ VOLUME_DISK_EXTENTS extents = {0};
+ DWORD dwResult = 0;
+ drivePath[4] = root[0];
+
+ if ((dev = CreateFile (drivePath.c_str(),0, 0, NULL, OPEN_EXISTING, 0, NULL)) != INVALID_HANDLE_VALUE)
+ {
+ if (DeviceIoControl (dev, IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS, NULL, 0, &extents, sizeof(extents), &dwResult, NULL))
+ {
+ if (extents.NumberOfDiskExtents > 0)
+ {
+ STORAGE_ACCESS_ALIGNMENT_DESCRIPTOR desc;
+ if (GetPhysicalDriveAlignment (extents.Extents[0].DiskNumber, &desc))
+ {
+ mount.BytesPerSector = desc.BytesPerLogicalSector;
+ mount.BytesPerPhysicalSector = desc.BytesPerPhysicalSector;
+ }
+ }
+ }
+ CloseHandle (dev);
+ }
+ }
+ }
// Read-only host filesystem
if (!mount.bMountReadOnly && GetVolumeInformation (root, NULL, 0, NULL, &d, &flags, NULL, 0))
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