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-rw-r--r--lib/stdlib/doc/src/ets.xml62
1 files changed, 50 insertions, 12 deletions
diff --git a/lib/stdlib/doc/src/ets.xml b/lib/stdlib/doc/src/ets.xml
index 3df24bf688..03b995e4de 100644
--- a/lib/stdlib/doc/src/ets.xml
+++ b/lib/stdlib/doc/src/ets.xml
@@ -8,16 +8,17 @@
<holder>Ericsson AB. All Rights Reserved.</holder>
</copyright>
<legalnotice>
- The contents of this file are subject to the Erlang Public License,
- Version 1.1, (the "License"); you may not use this file except in
- compliance with the License. You should have received a copy of the
- Erlang Public License along with this software. If not, it can be
- retrieved online at http://www.erlang.org/.
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
- Software distributed under the License is distributed on an "AS IS"
- basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
- the License for the specific language governing rights and limitations
- under the License.
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
</legalnotice>
@@ -456,6 +457,12 @@ Error: fun containing local Erlang function calls
<item><c>{type, <seealso marker="#type-type">type()</seealso>}</c> <br></br>
The table type.</item>
+ <item><c>{read_concurrency, boolean()}</c> <br></br>
+
+ Indicates whether the table uses read_concurrency or not.</item>
+ <item><c>{write_concurrency, boolean()}</c> <br></br>
+
+ Indicates whether the table uses write_concurrency or not.</item>
</list>
</desc>
</func>
@@ -603,7 +610,7 @@ ets:is_compiled_ms(Broken).</code>
<p>Returns the last key <c><anno>Key</anno></c> according to Erlang term
order in the table <c>Tab</c> of the <c>ordered_set</c> type.
If the table is of any other type, the function is synonymous
- to <c>first/2</c>. If the table is empty,
+ to <c>first/1</c>. If the table is empty,
<c>'$end_of_table'</c> is returned.</p>
<p>Use <c>prev/2</c> to find preceding keys in the table.</p>
</desc>
@@ -1429,7 +1436,9 @@ is_integer(X), is_integer(Y), X + Y < 4711]]></code>
<p>Whenever the <c>extended_info</c> option is used, it
results in a file not readable by versions of ets prior to
that in stdlib-1.15.1</p>
-
+ <p>The <c>sync</c> option, if set to <c>true</c>, ensures that
+ the content of the file is actually written to the disk before
+ <c>tab2file</c> returns. Default is <c>{sync, false}</c>.</p>
</desc>
</func>
<func>
@@ -1587,6 +1596,21 @@ true</pre>
</desc>
</func>
<func>
+ <name name="take" arity="2"/>
+ <fsummary>Return and remove all objects with a given key from an ETS
+ table.</fsummary>
+ <desc>
+ <p>Returns a list of all objects with the key <c><anno>Key</anno></c> in
+ the table <c><anno>Tab</anno></c> and removes.</p>
+ <p>The given <c><anno>Key</anno></c> is used to identify the object by
+ either <em>comparing equal</em> the key of an object in an
+ <c>ordered_set</c> table, or <em>matching</em> in other types of
+ tables (see <seealso marker="#lookup/2">lookup/2</seealso> and
+ <seealso marker="#new/2">new/2</seealso> for details on the
+ difference).</p>
+ </desc>
+ </func>
+ <func>
<name name="to_dets" arity="2"/>
<fsummary>Fill a Dets table with objects from an ETS table.</fsummary>
<desc>
@@ -1597,14 +1621,18 @@ true</pre>
</func>
<func>
<name name="update_counter" arity="3" clause_i="1"/>
+ <name name="update_counter" arity="4" clause_i="1"/>
<name name="update_counter" arity="3" clause_i="2"/>
+ <name name="update_counter" arity="4" clause_i="2"/>
<name name="update_counter" arity="3" clause_i="3"/>
+ <name name="update_counter" arity="4" clause_i="3"/>
<type variable="Tab"/>
<type variable="Key"/>
<type variable="UpdateOp" name_i="1"/>
<type variable="Pos" name_i="1"/>
<type variable="Threshold" name_i="1"/>
<type variable="SetValue" name_i="1"/>
+ <type variable="Default"/>
<fsummary>Update a counter object in an ETS table.</fsummary>
<desc>
<p>This function provides an efficient way to update one or more
@@ -1646,12 +1674,22 @@ true</pre>
<seealso marker="#lookup/2">lookup/2</seealso> and
<seealso marker="#new/2">new/2</seealso>
for details on the difference).</p>
+ <p>If a default object <c><anno>Default</anno></c> is given, it is used
+ as the object to be updated if the key is missing from the table. The
+ value in place of the key is ignored and replaced by the proper key
+ value. The return value is as if the default object had not been used,
+ that is a single updated element or a list of them.</p>
<p>The function will fail with reason <c>badarg</c> if:</p>
<list type="bulleted">
<item>the table is not of type <c>set</c> or
<c>ordered_set</c>,</item>
- <item>no object with the right key exists,</item>
+ <item>no object with the right key exists and no default object were
+ supplied,</item>
<item>the object has the wrong arity,</item>
+ <item>the default object arity is smaller than
+ <c><![CDATA[<keypos>]]></c></item>
+ <item>any field from the default object being updated is not an
+ integer</item>
<item>the element to update is not an integer,</item>
<item>the element to update is also the key, or,</item>
<item>any of <c><anno>Pos</anno></c>, <c><anno>Incr</anno></c>, <c><anno>Threshold</anno></c> or