include/svl/broadcast.hxx | 5 +++++
1 file changed, 5 insertions(+)
New commits:
commit 03e8b5e08dcab5d29b360b769205977cd26bd41b
Author: Noel Grandin <[email protected]>
AuthorDate: Mon Jun 6 11:25:07 2022 +0200
Commit: Noel Grandin <[email protected]>
CommitDate: Mon Jun 6 13:16:30 2022 +0200
add comments to SvtBroadcaster about field sizes/packing
Change-Id: Ia01897ac1444e9ac905a0e383b892fa1478c2c33
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/135447
Tested-by: Jenkins
Reviewed-by: Noel Grandin <[email protected]>
diff --git a/include/svl/broadcast.hxx b/include/svl/broadcast.hxx
index 3c9f64967909..30592d22c6c7 100644
--- a/include/svl/broadcast.hxx
+++ b/include/svl/broadcast.hxx
@@ -82,6 +82,11 @@ private:
/// When the broadcaster is about to die, collect listeners that asked for
removal.
mutable ListenersType maDestructedListeners;
+ /**
+ Note that this class is very performance sensitive, so the following
fields have been
+ carefully sized and packed so we can access them quickly, while also
taking as little CPU cache
+ space as possible (because e.g. calc can have a LOT of them)
+ */
mutable sal_Int32 mnEmptySlots;
// The first item in maListeners that is not sorted. The container can
become large, so this optimizes sorting.
mutable sal_Int32 mnListenersFirstUnsorted;
