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Add docs for fsemaphores in the Synchronization section.

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Closes PR 13380.
This commit is contained in:
Eric Dobson 2015-03-17 23:52:37 -07:00 committed by Matthew Flatt
parent 3ad60aa67a
commit e0ee4b1a31
1 changed files with 4 additions and 1 deletions

5
pkgs/racket-doc/scribblings/reference/sync.scrbl
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@ -3,7 +3,7 @@
@title[#:tag "all-sync" #:style 'toc]{Synchronization}
Racket's synchronization toolbox spans three layers:
Racket's synchronization toolbox spans four layers:
@itemize[
@ -17,6 +17,9 @@ that compose events); and}
@item{@tech{semaphores} --- a simple and especially cheap primitive
for synchronization.}
@item{@tech{future semaphores} --- a simple synchronization primitive
for use with @tech{futures}.}
]