4.30 beta

Windows/FileDevice.cpp

@@ -0,0 +1,49 @@
+// Windows/FileDevice.cpp
+
+#include "StdAfx.h"
+
+#include "FileDevice.h"
+
+namespace NWindows {
+namespace NFile {
+namespace NDevice {
+
+bool CFileBase::GetLengthSmart(UInt64 &length)
+{
+  PARTITION_INFORMATION partInfo;
+  if (GetPartitionInfo(&partInfo))
+  {
+    length = partInfo.PartitionLength.QuadPart;
+    return true;
+  }
+  DISK_GEOMETRY geom;
+  if (!GetGeometry(&geom))
+    if (!GetCdRomGeometry(&geom))
+      return false;
+  length = geom.Cylinders.QuadPart * geom.TracksPerCylinder * geom.SectorsPerTrack * geom.BytesPerSector;
+  return true;
+}
+
+bool CInFile::Open(LPCTSTR fileName, DWORD shareMode, DWORD creationDisposition, DWORD flagsAndAttributes)
+  { return Create(fileName, GENERIC_READ, shareMode, creationDisposition, flagsAndAttributes); }
+
+bool CInFile::Open(LPCTSTR fileName)
+  { return Open(fileName, FILE_SHARE_READ, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL); }
+
+#ifndef _UNICODE
+bool CInFile::Open(LPCWSTR fileName, DWORD shareMode, DWORD creationDisposition, DWORD flagsAndAttributes)
+  { return Create(fileName, GENERIC_READ, shareMode, creationDisposition, flagsAndAttributes); }
+
+bool CInFile::Open(LPCWSTR fileName)
+  { return Open(fileName, FILE_SHARE_READ, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL); }
+#endif
+
+bool CInFile::Read(void *data, UInt32 size, UInt32 &processedSize)
+{
+  DWORD processedLoc = 0;
+  bool res = BOOLToBool(::ReadFile(_handle, data, size, &processedLoc, NULL));
+  processedSize = (UInt32)processedLoc;
+  return res;
+}
+
+}}}