Changeset 6431 in vbox for trunk/src/VBox

Timestamp:

Jan 21, 2008 10:41:13 PM (17 years ago)

Author:

vboxsync

Message:

Support seeking to xxxxxxxx'ffffffff on windows.

File:

• trunk/src/VBox/Runtime/r3/win/fileio-win.cpp (modified) (1 diff)

trunk/src/VBox/Runtime/r3/win/fileio-win.cpp

@@ -67 +67 @@
 inline bool MySetFilePointer(RTFILE File, uint64_t offSeek, uint64_t *poffNew, unsigned uMethod)
 {
+    bool            fRc;
     LARGE_INTEGER   off;
+
     off.QuadPart = offSeek;
 #if 1
-    off.LowPart = SetFilePointer((HANDLE)File, off.LowPart, &off.HighPart, uMethod);
-    bool fRc = off.LowPart != INVALID_SET_FILE_POINTER;
+    if (off.LowPart != INVALID_SET_FILE_POINTER)
+    {
+        off.LowPart = SetFilePointer((HANDLE)File, off.LowPart, &off.HighPart, uMethod);
+        fRc = off.LowPart != INVALID_SET_FILE_POINTER;
+    }
+    else
+    {
+        SetLastError(NO_ERROR);
+        off.LowPart = SetFilePointer((HANDLE)File, off.LowPart, &off.HighPart, uMethod);
+        fRc = GetLastError() == NO_ERROR;
+    }
 #else
-    bool fRc = SetFilePointerEx((HANDLE)File, off, &off, uMethod);
+    fRc = SetFilePointerEx((HANDLE)File, off, &off, uMethod);
 #endif
     if (fRc && poffNew)