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docs: will executors are synchronizable events

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Merge to 5.3
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Matthew Flatt 2012-04-12 07:26:34 -06:00
parent 9f492c10a7
commit 2d6073f59f
1 changed files with 3 additions and 1 deletions
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collects/scribblings/reference/memory.scrbl
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@ -109,7 +109,9 @@ embedded in an object when the object is no longer used.
Calling the @racket[will-execute] or @racket[will-try-execute]
procedure executes a will that is ready in the specified will
executor. Wills are not executed automatically, because certain
executor. A will executor is also a @tech{synchronizable event}, so @racket[sync]
or @racket[sync/timeout] can be used to detect when a will executor has
ready wills. Wills are not executed automatically, because certain
programs need control to avoid race conditions. However, a program can
create a thread whose sole job is to execute wills for a particular
executor.