Add LZMA SDK.

3rdparty/lzma-21.03beta/CPP/Windows/FileSystem.h

@@ -0,0 +1,31 @@
+// Windows/FileSystem.h
+
+#ifndef __WINDOWS_FILE_SYSTEM_H
+#define __WINDOWS_FILE_SYSTEM_H
+
+#include "../Common/MyString.h"
+#include "../Common/MyTypes.h"
+
+namespace NWindows {
+namespace NFile {
+namespace NSystem {
+
+#ifdef _WIN32
+
+bool MyGetVolumeInformation(
+    CFSTR rootPath  ,
+    UString &volumeName,
+    LPDWORD volumeSerialNumber,
+    LPDWORD maximumComponentLength,
+    LPDWORD fileSystemFlags,
+    UString &fileSystemName);
+
+UINT MyGetDriveType(CFSTR pathName);
+
+bool MyGetDiskFreeSpace(CFSTR rootPath, UInt64 &clusterSize, UInt64 &totalSize, UInt64 &freeSize);
+
+#endif
+
+}}}
+
+#endif