MacroPackage: exclToCDocOverviewCGDocRelNotesFAQIndexPermutedIndex
Allegro CL version 8.1
New since 8.1 release.


Arguments: &body body

This macro was added by a patch released in July, 2009. This macro will not be defined if that patch has not been installed. See sys:update-allegro for information on downloading patches.

This macro can only appear lexically inside the body of a with-locked-object macro. The lock obtained in the immediately enclosing with-locked-object macro is released, body is executed, and then the lock is reobtained. When the enclosing with-locked-object macro specifies a non-smp value, the with-object-lock-released cooperates to manipulate the corresponding state. This macro isn't allowed in a non-smp lisp if the enclosing lock form designates :atomically as the non-smp strategy. with-object-lock-released is rarely used, and is never actually needed; there are alternate ways of achieving the same thing that are usually clearer.

See smp.htm and multiprocessing.htm for more information on this macro and on multiprocessing.

Copyright (c) 1998-2009, Franz Inc. Oakland, CA., USA. All rights reserved.
Documentation for Allegro CL version 8.1. This page is new in the 8.1 release.
Created 2007.4.30.

Allegro CL version 8.1
New since 8.1 release.