Changeset 79278 in vbox

Timestamp:

Jun 21, 2019 1:52:35 PM (6 years ago)

Author:

vboxsync

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

131471

Message:

Main/GuestFileImpl.cpp: Cap the read and readAt requests at 1 MiB so as to not waste memory on aData buffer space that won't be used, given the that guest side won't return more than a MiB. bugref:9320

File:

• trunk/src/VBox/Main/src-client/GuestFileImpl.cpp (modified) (2 diffs)

trunk/src/VBox/Main/src-client/GuestFileImpl.cpp

@@ -1402 +1402 @@
     LogFlowThisFuncEnter();
 
+    /* Cap the read at 1MiB because that's all the guest will return anyway. */
+    if (aToRead > _1M)
+        aToRead = _1M;
+
     aData.resize(aToRead);
 
@@ -1436 +1440 @@
 
     LogFlowThisFuncEnter();
+
+    /* Cap the read at 1MiB because that's all the guest will return anyway. */
+    if (aToRead > _1M)
+        aToRead = _1M;
 
     aData.resize(aToRead);