aboutsummaryrefslogtreecommitdiffstats
path: root/lib/stdlib/src
diff options
context:
space:
mode:
authorZandra Hird <[email protected]>2015-03-16 13:18:37 +0100
committerZandra Hird <[email protected]>2015-03-16 13:18:59 +0100
commitda0cfbabbae668bcacbf3e5fff1ebdc173e6f1e1 (patch)
treed970a02c19f9e5c31d600ea5b26ece53142f20e1 /lib/stdlib/src
parent3e2070b328b7c2c5f641f3b73a52d6cb7e3b5a44 (diff)
parent0e464f7be1ae9b54d0fba748ab2dc7bd435ac118 (diff)
downloadotp-da0cfbabbae668bcacbf3e5fff1ebdc173e6f1e1.tar.gz
otp-da0cfbabbae668bcacbf3e5fff1ebdc173e6f1e1.tar.bz2
otp-da0cfbabbae668bcacbf3e5fff1ebdc173e6f1e1.zip
Merge branch 'nox/ets-update_counter-4'
* nox/ets-update_counter-4: Create new BIF ets:update_counter/4 Allow 4-ary BIFs OTP-12563
Diffstat (limited to 'lib/stdlib/src')
-rw-r--r--lib/stdlib/src/ets.erl34
1 files changed, 33 insertions, 1 deletions
diff --git a/lib/stdlib/src/ets.erl b/lib/stdlib/src/ets.erl
index 09c8924650..1df069755d 100644
--- a/lib/stdlib/src/ets.erl
+++ b/lib/stdlib/src/ets.erl
@@ -72,7 +72,7 @@
select_count/2, select_delete/2, select_reverse/1,
select_reverse/2, select_reverse/3, setopts/2, slot/2,
take/2,
- update_counter/3, update_element/3]).
+ update_counter/3, update_counter/4, update_element/3]).
-spec all() -> [Tab] when
Tab :: tab().
@@ -439,6 +439,38 @@ take(_, _) ->
update_counter(_, _, _) ->
erlang:nif_error(undef).
+-spec update_counter(Tab, Key, UpdateOp, Default) -> Result when
+ Tab :: tab(),
+ Key :: term(),
+ UpdateOp :: {Pos, Incr}
+ | {Pos, Incr, Threshold, SetValue},
+ Pos :: integer(),
+ Incr :: integer(),
+ Threshold :: integer(),
+ SetValue :: integer(),
+ Result :: integer(),
+ Default :: tuple();
+ (Tab, Key, [UpdateOp], Default) -> [Result] when
+ Tab :: tab(),
+ Key :: term(),
+ UpdateOp :: {Pos, Incr}
+ | {Pos, Incr, Threshold, SetValue},
+ Pos :: integer(),
+ Incr :: integer(),
+ Threshold :: integer(),
+ SetValue :: integer(),
+ Result :: integer(),
+ Default :: tuple();
+ (Tab, Key, Incr, Default) -> Result when
+ Tab :: tab(),
+ Key :: term(),
+ Incr :: integer(),
+ Result :: integer(),
+ Default :: tuple().
+
+update_counter(_, _, _, _) ->
+ erlang:nif_error(undef).
+
-spec update_element(Tab, Key, ElementSpec :: {Pos, Value}) -> boolean() when
Tab :: tab(),
Key :: term(),