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sync/atomic: add Exchange operation #5722

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dvyukov opened this issue Jun 17, 2013 · 3 comments
Closed

sync/atomic: add Exchange operation #5722

dvyukov opened this issue Jun 17, 2013 · 3 comments
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Go1.2

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@dvyukov
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dvyukov commented Jun 17, 2013 

Add atomic Exchange operation to sync/atomic package.

Exchange is a part of gentleman's atomic set of operations. It's
provided by C/C++/Java/etc.
Exchange is useful for some stack/queue algorithms; stats counters
(load and reset to 0); runtime uses runtime·xchg in locks, scheduler
and GC.
@rsc
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rsc commented Jun 17, 2013

Comment 1:

OK, but it should be called Swap, because that's the name already used in CompareAndSwap.

Labels changed: added go1.2, removed go1.2maybe.

@rsc
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rsc commented Jul 30, 2013

Comment 2:

Labels changed: added feature.

@dvyukov
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dvyukov commented Aug 13, 2013

Comment 3:

This issue was closed by revision 0e15b03.

Status changed to Fixed.

@rsc rsc added this to the Go1.2 milestone Apr 14, 2015
@rsc rsc removed the go1.2 label Apr 14, 2015
@golang golang locked and limited conversation to collaborators Jun 24, 2016
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