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-rw-r--r--erts/preloaded/src/erts_internal.erl127
1 files changed, 117 insertions, 10 deletions
diff --git a/erts/preloaded/src/erts_internal.erl b/erts/preloaded/src/erts_internal.erl
index 26fb1458af..a083e9ac2f 100644
--- a/erts/preloaded/src/erts_internal.erl
+++ b/erts/preloaded/src/erts_internal.erl
@@ -32,7 +32,7 @@
-export([await_port_send_result/3]).
-export([cmp_term/2]).
-export([map_to_tuple_keys/1, term_type/1, map_hashmap_children/1,
- maps_to_list/2]).
+ map_next/3]).
-export([open_port/2, port_command/3, port_connect/2, port_close/1,
port_control/3, port_call/3, port_info/1, port_info/2]).
@@ -61,6 +61,15 @@
-export([trace/3, trace_pattern/3]).
+-export([dist_ctrl_put_data/2]).
+
+-export([new_connection/1]).
+-export([abort_connection/2]).
+
+-export([scheduler_wall_time/1, system_flag_scheduler_wall_time/1,
+ gather_sched_wall_time_result/1,
+ await_sched_wall_time_modifications/2]).
+
%% Auto import name clash
-export([check_process_code/1]).
@@ -365,20 +374,23 @@ term_type(_T) ->
map_hashmap_children(_M) ->
erlang:nif_error(undefined).
+%% return the next assoc in the iterator and a new iterator
+-spec map_next(I, M, A) -> {K,V,NI} | list() when
+ I :: non_neg_integer(),
+ M :: map(),
+ K :: term(),
+ V :: term(),
+ A :: iterator | list(),
+ NI :: maps:iterator().
+
+map_next(_I, _M, _A) ->
+ erlang:nif_error(undefined).
+
-spec erts_internal:flush_monitor_messages(Ref, Multi, Res) -> term() when
Ref :: reference(),
Multi :: boolean(),
Res :: term().
-%% return a list of key value pairs, at most of length N
--spec maps_to_list(M,N) -> Pairs when
- M :: map(),
- N :: integer(),
- Pairs :: list().
-
-maps_to_list(_M, _N) ->
- erlang:nif_error(undefined).
-
%% erlang:demonitor(Ref, [flush]) traps to
%% erts_internal:flush_monitor_messages(Ref, Res) when
%% it needs to flush monitor messages.
@@ -461,3 +473,98 @@ trace(_PidSpec, _How, _FlagList) ->
FlagList :: [ ].
trace_pattern(_MFA, _MatchSpec, _FlagList) ->
erlang:nif_error(undefined).
+
+-spec dist_ctrl_put_data(DHandle, Data) -> 'ok' when
+ DHandle :: erlang:dist_handle(),
+ Data :: iolist().
+
+dist_ctrl_put_data(DHandle, IoList) ->
+ %%
+ %% Helper for erlang:dist_ctrl_put_data/2
+ %%
+ %% erlang:dist_ctrl_put_data/2 traps to
+ %% this function if second argument is
+ %% a list...
+ %%
+ try
+ Binary = erlang:iolist_to_binary(IoList),
+ %% Restart erlang:dist_ctrl_put_data/2
+ %% with the iolist converted to a binary...
+ erlang:dist_ctrl_put_data(DHandle, Binary)
+ catch
+ Class : Reason ->
+ %% Throw exception as if thrown from
+ %% erlang:dist_ctrl_put_data/2 ...
+ RootST = try erlang:error(Reason)
+ catch
+ error:Reason ->
+ case erlang:get_stacktrace() of
+ [] -> [];
+ ST -> tl(ST)
+ end
+ end,
+ StackTrace = [{erlang, dist_ctrl_put_data,
+ [DHandle, IoList], []}
+ | RootST],
+ erlang:raise(Class, Reason, StackTrace)
+ end.
+
+
+-spec erts_internal:new_connection(Node) -> ConnId when
+ Node :: atom(),
+ ConnId :: {integer(), erlang:dist_handle()}.
+new_connection(_Node) ->
+ erlang:nif_error(undefined).
+
+-spec erts_internal:abort_connection(Node, ConnId) -> boolean() when
+ Node :: atom(),
+ ConnId :: {integer(), erlang:dist_handle()}.
+abort_connection(_Node, _ConnId) ->
+ erlang:nif_error(undefined).
+
+%% Scheduler wall time
+
+-spec erts_internal:system_flag_scheduler_wall_time(Enable) -> boolean() when
+ Enable :: boolean().
+
+system_flag_scheduler_wall_time(Bool) ->
+ kernel_refc:scheduler_wall_time(Bool).
+
+
+-spec erts_internal:await_sched_wall_time_modifications(Ref, Result) -> boolean() when
+ Ref :: reference(),
+ Result :: boolean().
+
+-spec erts_internal:scheduler_wall_time(Enable) -> boolean() when
+ Enable :: boolean().
+
+scheduler_wall_time(_Enable) ->
+ erlang:nif_error(undefined).
+
+await_sched_wall_time_modifications(Ref, Result) ->
+ sched_wall_time(Ref, erlang:system_info(schedulers)),
+ Result.
+
+-spec erts_internal:gather_sched_wall_time_result(Ref) -> [{pos_integer(),
+ non_neg_integer(),
+ non_neg_integer()}] when
+ Ref :: reference().
+
+gather_sched_wall_time_result(Ref) when erlang:is_reference(Ref) ->
+ sched_wall_time(Ref, erlang:system_info(schedulers), []).
+
+sched_wall_time(_Ref, 0) ->
+ ok;
+sched_wall_time(Ref, N) ->
+ receive Ref -> sched_wall_time(Ref, N-1) end.
+
+sched_wall_time(_Ref, 0, Acc) ->
+ Acc;
+sched_wall_time(Ref, N, undefined) ->
+ receive {Ref, _} -> sched_wall_time(Ref, N-1, undefined) end;
+sched_wall_time(Ref, N, Acc) ->
+ receive
+ {Ref, undefined} -> sched_wall_time(Ref, N-1, undefined);
+ {Ref, SWTL} when erlang:is_list(SWTL) -> sched_wall_time(Ref, N-1, Acc ++ SWTL);
+ {Ref, SWT} -> sched_wall_time(Ref, N-1, [SWT|Acc])
+ end.