Changeset 91095 in vbox for trunk/src/VBox/Runtime/common/vfs

Timestamp:

Sep 2, 2021 1:51:26 PM (4 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

146745

Message:

IPRT/vfsmemory.cpp: Moved the before-first-extent check down a bit.

File:

• trunk/src/VBox/Runtime/common/vfs/vfsmemory.cpp (modified) (2 diffs)

trunk/src/VBox/Runtime/common/vfs/vfsmemory.cpp

@@ -172 +172 @@
     if (!pExtent || off < pExtent->off)
     {
-        /* Check whether the offset is before the first extent first. */
-        pExtent = RTListGetFirst(&pThis->ExtentHead, RTVFSMEMEXTENT, Entry);
-        if (   pExtent
-            && off < pExtent->off)
-        {
-            *pfHit = false;
-            return pExtent;
-        }
-
         /* Consider the last entry first (for writes). */
         pExtent = RTListGetLast(&pThis->ExtentHead, RTVFSMEMEXTENT, Entry);
@@ -195 +186 @@
         }
 
-        /* Otherwise, start from the head. */
+        /* Otherwise, start from the head after making sure it is not an
+           offset before the first extent. */
         pExtent = RTListGetFirst(&pThis->ExtentHead, RTVFSMEMEXTENT, Entry);
+        if (off < pExtent->off)
+        {
+            *pfHit = false;
+            return pExtent;
+        }
     }