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authorBjörn Gustavsson <[email protected]>2019-02-22 12:43:25 +0100
committerBjörn Gustavsson <[email protected]>2019-02-22 12:51:54 +0100
commitb1da810f5702e4bedfacd24eb37907648891b277 (patch)
tree9b786d536fd079f6597f95dd3c2dc809f5a50e60 /lib
parent9fc7abf9e8741552d11a64470b3c489120d069b1 (diff)
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Clarify the atomic guarantees for ets:update_counter()
The phrasing "no process can access the ETS table in the middle of the operation" implies that the entire table is looked during the operation, which is not true if `write_concurrency` is enabled.
Diffstat (limited to 'lib')
-rw-r--r--lib/stdlib/doc/src/ets.xml5
1 files changed, 2 insertions, 3 deletions
diff --git a/lib/stdlib/doc/src/ets.xml b/lib/stdlib/doc/src/ets.xml
index 622edc072e..b9ceaa1d69 100644
--- a/lib/stdlib/doc/src/ets.xml
+++ b/lib/stdlib/doc/src/ets.xml
@@ -2008,9 +2008,8 @@ true</pre>
<p>This function provides an efficient way to update one or more
counters, without the trouble of having to look up an object, update
the object by incrementing an element, and insert the resulting
- object into the table again. (The update is done atomically,
- that is, no process
- can access the ETS table in the middle of the operation.)</p>
+ object into the table again. The operation is guaranteed to be
+ <seealso marker="#concurrency">atomic and isolated</seealso>.</p>
<p>This function destructively update the object with key
<c><anno>Key</anno></c> in table <c><anno>Tab</anno></c> by adding
<c><anno>Incr</anno></c> to the element at position