From fb21c7c6e7edb2c4b9ef6caafd0a44523d235b89 Mon Sep 17 00:00:00 2001 From: Michael Davidsaver Date: Tue, 2 Apr 2013 17:07:54 -0400 Subject: [PATCH] update release notes --- documentation/RELEASE_NOTES.html | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/documentation/RELEASE_NOTES.html b/documentation/RELEASE_NOTES.html index fd3dc4673..37167cf63 100644 --- a/documentation/RELEASE_NOTES.html +++ b/documentation/RELEASE_NOTES.html @@ -15,6 +15,22 @@ EPICS Base 3.15.0.x releases are not intended for use in production systems.

Changes between 3.15.0.1 and 3.15.0.2

+

Array field memory mangement

+ +

This allows array data to be moved, without copying, into and out of the +value (aka BPTR) field of the waveform, aai, and aao types.

+ +

Making use of this feature involves replacing the pointer stored in the BPTR +field with another (user allocated) pointer. The basic rules are:

+ +
    +
  1. BPTR, and the memory it is currently pointing to, can only be accessed + while the record is locked.
    2. +
  2. NELM may not be changed.
    3. +
  3. BPTR must always point to a piece of memory large enough to accommodate + the maximum number of elements (as given by the NELM field).
    4. +
+

mbboDirect and mbbiDirect records

These record types have undergone some significant rework, and will behave