Changeset 78548 in vbox for trunk/src/VBox/Additions/WINNT/SharedFolders/driver/file.cpp

Timestamp:

May 16, 2019 1:53:39 PM (6 years ago)

Author:

vboxsync

Message:

winnt/vboxsf: Fixed none-working open+truncate testcase caused by an old misconception in the FileAllocationInformation wrt when the incoming sizes would be updated (before call, as it turns out). bugref:9172

File:

• trunk/src/VBox/Additions/WINNT/SharedFolders/driver/file.cpp (modified) (1 diff)

trunk/src/VBox/Additions/WINNT/SharedFolders/driver/file.cpp

@@ -438 +438 @@
         if (pVBoxFcbx->pFobxLastWriteTime != pVBoxFobx)
             pVBoxFcbx->pFobxLastWriteTime = NULL;
+
+        /* Make sure our cached file size value is up to date: */
+        if (ctx.cbData > 0)
+        {
+            RTFOFF offEndOfWrite = LowIoContext->ParamsFor.ReadWrite.ByteOffset + ctx.cbData;
+            if (pVBoxFobx->Info.cbObject < offEndOfWrite)
+                pVBoxFobx->Info.cbObject = offEndOfWrite;
+
+            if (pVBoxFobx->Info.cbAllocated < offEndOfWrite)
+            {
+                pVBoxFobx->Info.cbAllocated = offEndOfWrite;
+                pVBoxFobx->nsUpToDate       = 0;
+            }
+        }
     }
     else