diff options
Diffstat (limited to 'erts/preloaded/src/erts_internal.erl')
| -rw-r--r-- | erts/preloaded/src/erts_internal.erl | 127 |
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. |