diff options
Diffstat (limited to 'lib/stdlib/doc/src/ets.xml')
| -rw-r--r-- | lib/stdlib/doc/src/ets.xml | 39 |
1 files changed, 31 insertions, 8 deletions
diff --git a/lib/stdlib/doc/src/ets.xml b/lib/stdlib/doc/src/ets.xml index 576959b1c8..305376a425 100644 --- a/lib/stdlib/doc/src/ets.xml +++ b/lib/stdlib/doc/src/ets.xml @@ -487,6 +487,11 @@ Error: fun containing local Erlang function calls <p>The pid of the heir of the table, or <c>none</c> if no heir is set.</p> </item> + <tag><c>{id,</c><seealso marker="#type-tid"> + <c>tid()</c></seealso><c>}</c></tag> + <item> + <p>The table identifier.</p> + </item> <tag><c>{keypos, integer() >= 1}</c></tag> <item> <p>The key position.</p> @@ -963,11 +968,11 @@ ets:is_compiled_ms(Broken).</code> <func> <name name="match_spec_run" arity="2"/> <fsummary>Perform matching, using a compiled match specification on a - list of tuples.</fsummary> + list of terms.</fsummary> <desc> <p>Executes the matching specified in a compiled <seealso marker="#match_spec">match specification</seealso> on a list - of tuples. Term <c><anno>CompiledMatchSpec</anno></c> is to be + of terms. Term <c><anno>CompiledMatchSpec</anno></c> is to be the result of a call to <seealso marker="#match_spec_compile/1"> <c>match_spec_compile/1</c></seealso> and is hence the internal representation of the match specification one wants to use.</p> @@ -985,7 +990,7 @@ Table = ets:new... MatchSpec = ... % The following call... ets:match_spec_run(ets:tab2list(Table), -ets:match_spec_compile(MatchSpec)), + ets:match_spec_compile(MatchSpec)), % ...gives the same result as the more common (and more efficient) ets:select(Table, MatchSpec),</code> <note> @@ -1074,10 +1079,13 @@ ets:select(Table, MatchSpec),</code> </item> <tag><c>named_table</c></tag> <item> - <p>If this option is present, name <c><anno>Name</anno></c> is - associated with the table identifier. The name can then - be used instead of the table identifier in subsequent - operations.</p> + <p>If this option is present, the table is registered under its + <c><anno>Name</anno></c> which can then be used instead of the + table identifier in subsequent operations.</p> + <p>The function will also return the <c><anno>Name</anno></c> + instead of the table identifier. To get the table identifier of a + named table, use + <seealso marker="#whereis/1"><c>whereis/1</c></seealso>.</p> </item> <tag><c>{keypos,<anno>Pos</anno>}</c></tag> <item> @@ -1961,7 +1969,7 @@ true</pre> The return value is a list of the new counter values from each update operation in the same order as in the operation list. If an empty list is specified, nothing is updated and an empty list is - returned. If the function fails, no updates is done.</p> + returned. If the function fails, no updates are done.</p> <p>The specified <c><anno>Key</anno></c> is used to identify the object by either <em>matching</em> the key of an object in a <c>set</c> table, or <em>compare equal</em> to the key of an object in an @@ -2037,6 +2045,21 @@ true</pre> </list> </desc> </func> + + <func> + <name name="whereis" arity="1"/> + <fsummary>Retrieves the tid() of a named table.</fsummary> + <desc> + <p>This function returns the + <seealso marker="#type-tid"><c>tid()</c></seealso> of the named table + identified by <c><anno>TableName</anno></c>, or <c>undefined</c> if + no such table exists. The <c>tid()</c> can be used in place of the + table name in all operations, which is slightly faster since the name + does not have to be resolved on each call.</p> + <p>If the table is deleted, the <c>tid()</c> will be invalid even if + another named table is created with the same name.</p> + </desc> + </func> </funcs> </erlref> |