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-rw-r--r--erts/preloaded/src/erlang.erl327
-rw-r--r--erts/preloaded/src/erts_internal.erl281
-rw-r--r--erts/preloaded/src/init.erl32
3 files changed, 607 insertions, 33 deletions
diff --git a/erts/preloaded/src/erlang.erl b/erts/preloaded/src/erlang.erl
index 2e4331e15f..425b59790e 100644
--- a/erts/preloaded/src/erlang.erl
+++ b/erts/preloaded/src/erlang.erl
@@ -38,7 +38,6 @@
-export([integer_to_list/2]).
-export([integer_to_binary/2]).
--export([flush_monitor_message/2]).
-export([set_cpu_topology/1, format_cpu_topology/1]).
-export([await_proc_exit/3]).
-export([memory/0, memory/1]).
@@ -48,7 +47,7 @@
await_sched_wall_time_modifications/2,
gather_gc_info_result/1]).
--deprecated([hash/2]).
+-deprecated([hash/2, now/0]).
%% Get rid of autoimports of spawn to avoid clashes with ourselves.
-compile({no_auto_import,[spawn_link/1]}).
@@ -58,12 +57,21 @@
-compile({no_auto_import,[spawn_opt/5]}).
-export_type([timestamp/0]).
+-export_type([time_unit/0]).
-type ext_binary() :: binary().
-type timestamp() :: {MegaSecs :: non_neg_integer(),
Secs :: non_neg_integer(),
MicroSecs :: non_neg_integer()}.
+-type time_unit() ::
+ pos_integer()
+ | 'seconds'
+ | 'milli_seconds'
+ | 'micro_seconds'
+ | 'nano_seconds'
+ | 'native'.
+
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Native code BIF stubs and their types
%% (BIF's actually implemented in this module goes last in the file)
@@ -81,7 +89,7 @@
-export([binary_to_list/3, binary_to_term/1, binary_to_term/2]).
-export([bit_size/1, bitsize/1, bitstring_to_list/1]).
-export([bump_reductions/1, byte_size/1, call_on_load_function/1]).
--export([cancel_timer/1, check_old_code/1, check_process_code/2,
+-export([cancel_timer/1, cancel_timer/2, check_old_code/1, check_process_code/2,
check_process_code/3, crc32/1]).
-export([crc32/2, crc32_combine/3, date/0, decode_packet/3]).
-export([delete_element/2]).
@@ -104,7 +112,8 @@
-export([list_to_bitstring/1, list_to_existing_atom/1, list_to_float/1]).
-export([list_to_integer/1, list_to_integer/2]).
-export([list_to_pid/1, list_to_tuple/1, loaded/0]).
--export([localtime/0, make_ref/0, map_size/1, match_spec_test/3, md5/1, md5_final/1]).
+-export([localtime/0, make_ref/0]).
+-export([map_size/1, match_spec_test/3, md5/1, md5_final/1]).
-export([md5_init/0, md5_update/2, module_loaded/1, monitor/2]).
-export([monitor_node/2, monitor_node/3, nif_error/1, nif_error/2]).
-export([node/0, node/1, now/0, phash/2, phash2/1, phash2/2]).
@@ -112,9 +121,14 @@
-export([port_connect/2, port_control/3, port_get_data/1]).
-export([port_set_data/2, port_to_list/1, ports/0]).
-export([posixtime_to_universaltime/1, pre_loaded/0, prepare_loading/2]).
+-export([monotonic_time/0, monotonic_time/1]).
+-export([system_time/0, system_time/1]).
+-export([convert_time_unit/3]).
+-export([unique_integer/0, unique_integer/1]).
+-export([time_offset/0, time_offset/1, timestamp/0]).
-export([process_display/2]).
-export([process_flag/3, process_info/1, processes/0, purge_module/1]).
--export([put/2, raise/3, read_timer/1, ref_to_list/1, register/2]).
+-export([put/2, raise/3, read_timer/1, read_timer/2, ref_to_list/1, register/2]).
-export([registered/0, resume_process/1, round/1, self/0, send_after/3]).
-export([seq_trace/2, seq_trace_print/1, seq_trace_print/2, setnode/2]).
-export([setnode/3, size/1, spawn/3, spawn_link/3, split_binary/2]).
@@ -413,8 +427,77 @@ call_on_load_function(_P1) ->
-spec erlang:cancel_timer(TimerRef) -> Time | false when
TimerRef :: reference(),
Time :: non_neg_integer().
-cancel_timer(_TimerRef) ->
- erlang:nif_error(undefined).
+cancel_timer(TimerRef) ->
+ try
+ case erts_internal:access_bif_timer(TimerRef) of
+ undefined ->
+ false;
+ {BTR, TSrv} ->
+ Req = erlang:make_ref(),
+ TSrv ! {cancel_timeout, BTR, erlang:self(),
+ true, Req, TimerRef},
+ receive
+ {cancel_timer, Req, Result} ->
+ Result
+ end
+ end
+ catch
+ _:_ -> erlang:error(badarg, [TimerRef])
+ end.
+
+%% cancel_timer/2
+-spec erlang:cancel_timer(TimerRef, Options) -> Time | false | ok when
+ TimerRef :: reference(),
+ Option :: {async, boolean()} | {info, boolean()},
+ Options :: [Option],
+ Time :: non_neg_integer().
+cancel_timer(TimerRef, Options) ->
+ try
+ {Async, Info} = get_cancel_timer_options(Options, false, true),
+ case erts_internal:access_bif_timer(TimerRef) of
+ undefined ->
+ case {Async, Info} of
+ {true, true} ->
+ erlang:self() ! {cancel_timer, TimerRef, false}, ok;
+ {false, true} ->
+ false;
+ _ ->
+ ok
+ end;
+ {BTR, TSrv} ->
+ case Async of
+ true ->
+ TSrv ! {cancel_timeout, BTR, erlang:self(),
+ Info, TimerRef, TimerRef},
+ ok;
+ false ->
+ Req = erlang:make_ref(),
+ TSrv ! {cancel_timeout, BTR, erlang:self(),
+ true, Req, TimerRef},
+ receive
+ {cancel_timer, Req, Result} ->
+ case Info of
+ true -> Result;
+ false -> ok
+ end
+ end
+ end
+ end
+ catch
+ _:_ -> erlang:error(badarg, [TimerRef, Options])
+ end.
+
+get_cancel_timer_options([], Async, Info) ->
+ {Async, Info};
+get_cancel_timer_options([{async, Bool} | Opts],
+ _Async, Info) when Bool == true;
+ Bool == false ->
+ get_cancel_timer_options(Opts, Bool, Info);
+get_cancel_timer_options([{info, Bool} | Opts],
+ Async, _Info) when Bool == true;
+ Bool == false ->
+ get_cancel_timer_options(Opts, Async, Bool).
+
%% check_old_code/1
-spec check_old_code(Module) -> boolean() when
@@ -1190,13 +1273,18 @@ md5_update(_Context, _Data) ->
module_loaded(_Module) ->
erlang:nif_error(undefined).
+-type registered_name() :: atom().
+
+-type registered_process_identifier() :: registered_name() | {registered_name(), node()}.
+
+-type monitor_process_identifier() :: pid() | registered_process_identifier().
+
%% monitor/2
--spec monitor(Type, Item) -> MonitorRef when
- Type :: process,
- Item :: pid() | RegName | {RegName, Node},
- RegName :: module(),
- Node :: node(),
+-spec monitor(process, monitor_process_identifier()) -> MonitorRef when
+ MonitorRef :: reference();
+ (time_offset, clock_service) -> MonitorRef when
MonitorRef :: reference().
+
monitor(_Type, _Item) ->
erlang:nif_error(undefined).
@@ -1298,6 +1386,90 @@ ports() ->
posixtime_to_universaltime(_P1) ->
erlang:nif_error(undefined).
+-spec erlang:unique_integer(ModifierList) -> integer() when
+ ModifierList :: [Modifier],
+ Modifier :: positive | monotonic.
+
+unique_integer(_ModifierList) ->
+ erlang:nif_error(undefined).
+
+-spec erlang:unique_integer() -> integer().
+
+unique_integer() ->
+ erlang:nif_error(undefined).
+
+-spec erlang:monotonic_time() -> integer().
+
+monotonic_time() ->
+ erlang:nif_error(undefined).
+
+-spec erlang:monotonic_time(Unit) -> integer() when
+ Unit :: time_unit().
+
+monotonic_time(_Unit) ->
+ erlang:nif_error(undefined).
+
+-spec erlang:system_time() -> integer().
+
+system_time() ->
+ erlang:nif_error(undefined).
+
+-spec erlang:system_time(Unit) -> integer() when
+ Unit :: time_unit().
+
+system_time(_Unit) ->
+ erlang:nif_error(undefined).
+
+-spec erlang:convert_time_unit(Time, FromUnit, ToUnit) -> ConvertedTime when
+ Time :: integer(),
+ ConvertedTime :: integer(),
+ FromUnit :: time_unit(),
+ ToUnit :: time_unit().
+
+convert_time_unit(Time, FromUnit, ToUnit) ->
+ try
+ FU = case FromUnit of
+ native -> erts_internal:time_unit();
+ nano_seconds -> 1000*1000*1000;
+ micro_seconds -> 1000*1000;
+ milli_seconds -> 1000;
+ seconds -> 1;
+ _ when FromUnit > 0 -> FromUnit
+ end,
+ TU = case ToUnit of
+ native -> erts_internal:time_unit();
+ nano_seconds -> 1000*1000*1000;
+ micro_seconds -> 1000*1000;
+ milli_seconds -> 1000;
+ seconds -> 1;
+ _ when ToUnit > 0 -> ToUnit
+ end,
+ case Time < 0 of
+ true -> TU*Time - (FU - 1);
+ false -> TU*Time
+ end div FU
+ catch
+ _ : _ ->
+ erlang:error(badarg, [Time, FromUnit, ToUnit])
+ end.
+
+-spec erlang:time_offset() -> integer().
+
+time_offset() ->
+ erlang:nif_error(undefined).
+
+-spec erlang:time_offset(Unit) -> integer() when
+ Unit :: time_unit().
+
+time_offset(_Unit) ->
+ erlang:nif_error(undefined).
+
+-spec erlang:timestamp() -> Timestamp when
+ Timestamp :: timestamp().
+
+timestamp() ->
+ erlang:nif_error(undefined).
+
%% prepare_loading/2
-spec erlang:prepare_loading(Module, Code) -> PreparedCode | {error, Reason} when
Module :: module(),
@@ -1365,8 +1537,53 @@ raise(_Class, _Reason, _Stacktrace) ->
%% read_timer/1
-spec erlang:read_timer(TimerRef) -> non_neg_integer() | false when
TimerRef :: reference().
-read_timer(_TimerRef) ->
- erlang:nif_error(undefined).
+
+read_timer(TimerRef) ->
+ read_timer(TimerRef, []).
+
+%% read_timer/2
+-spec erlang:read_timer(TimerRef, Options) -> non_neg_integer() | false | ok when
+ TimerRef :: reference(),
+ Option :: {async, boolean()},
+ Options :: [Option].
+
+read_timer(TimerRef, Options) ->
+ try
+ Async = get_read_timer_options(Options, false),
+ case erts_internal:access_bif_timer(TimerRef) of
+ undefined ->
+ case Async of
+ true ->
+ erlang:self() ! {read_timer, TimerRef, false},
+ ok;
+ false ->
+ false
+ end;
+ {BTR, TSrv} ->
+ case Async of
+ true ->
+ TSrv ! {read_timeout, BTR, erlang:self(),
+ TimerRef, TimerRef},
+ ok;
+ false ->
+ Req = erlang:make_ref(),
+ TSrv ! {read_timeout, BTR, erlang:self(),
+ Req, TimerRef},
+ receive
+ {read_timer, Req, Result} ->
+ Result
+ end
+ end
+ end
+ catch
+ _:_ -> erlang:error(badarg, [TimerRef])
+ end.
+
+get_read_timer_options([], Async) ->
+ Async;
+get_read_timer_options([{async, Bool} | Opts],
+ _Async) when Bool == true; Bool == false ->
+ get_read_timer_options(Opts, Bool).
%% ref_to_list/1
-spec erlang:ref_to_list(Ref) -> string() when
@@ -1412,8 +1629,36 @@ self() ->
Dest :: pid() | atom(),
Msg :: term(),
TimerRef :: reference().
-send_after(_Time, _Dest, _Msg) ->
- erlang:nif_error(undefined).
+
+send_after(0, Dest, Msg) ->
+ try
+ true = ((erlang:is_pid(Dest)
+ andalso erlang:node(Dest) == erlang:node())
+ orelse (erlang:is_atom(Dest)
+ andalso Dest /= undefined)),
+ try Dest ! Msg catch _:_ -> ok end,
+ erlang:make_ref()
+ catch
+ _:_ ->
+ erlang:error(badarg, [0, Dest, Msg])
+ end;
+send_after(Time, Dest, Msg) ->
+ Now = erlang:monotonic_time(),
+ try
+ true = ((erlang:is_pid(Dest)
+ andalso erlang:node(Dest) == erlang:node())
+ orelse (erlang:is_atom(Dest)
+ andalso Dest /= undefined)),
+ true = Time > 0,
+ true = Time < (1 bsl 32), % Maybe lift this restriction...
+ TO = Now + (erts_internal:time_unit()*Time) div 1000,
+ {BTR, TSrv, TRef} = erts_internal:create_bif_timer(),
+ TSrv ! {set_timeout, BTR, Dest, TO, TRef, Msg},
+ TRef
+ catch
+ _:_ ->
+ erlang:error(badarg, [Time, Dest, Msg])
+ end.
%% seq_trace/2
-spec erlang:seq_trace(P1, P2) -> seq_trace_info_returns() | {term(), term(), term(), term(), term()} when
@@ -1486,8 +1731,37 @@ split_binary(_Bin, _Pos) ->
Dest :: pid() | atom(),
Msg :: term(),
TimerRef :: reference().
-start_timer(_Time, _Dest, _Msg) ->
- erlang:nif_error(undefined).
+start_timer(0, Dest, Msg) ->
+ try
+ true = ((erlang:is_pid(Dest)
+ andalso erlang:node(Dest) == erlang:node())
+ orelse (erlang:is_atom(Dest)
+ andalso Dest /= undefined)),
+ TimerRef = erlang:make_ref(),
+ try Dest ! {timeout, TimerRef, Msg} catch _:_ -> ok end,
+ TimerRef
+ catch
+ _:_ ->
+ erlang:error(badarg, [0, Dest, Msg])
+ end;
+start_timer(Time, Dest, Msg) ->
+ Now = erlang:monotonic_time(),
+ try
+ true = ((erlang:is_pid(Dest)
+ andalso erlang:node(Dest) == erlang:node())
+ orelse (erlang:is_atom(Dest)
+ andalso Dest /= undefined)),
+ true = Time > 0,
+ true = Time < (1 bsl 32), % Maybe lift this restriction...
+ TO = Now + (erts_internal:time_unit()*Time) div 1000,
+ {BTR, TSrv, TimerRef} = erts_internal:create_bif_timer(),
+ TSrv ! {set_timeout, BTR, Dest, TO, TimerRef,
+ {timeout, TimerRef, Msg}},
+ TimerRef
+ catch
+ _:_ ->
+ erlang:error(badarg, [Time, Dest, Msg])
+ end.
%% suspend_process/2
-spec erlang:suspend_process(Suspendee, OptList) -> boolean() when
@@ -2124,6 +2398,8 @@ subtract(_,_) ->
(trace_control_word, TCW) -> OldTCW when
TCW :: non_neg_integer(),
OldTCW :: non_neg_integer();
+ (time_offset, finalize) -> OldState when
+ OldState :: preliminary | final | volatile;
%% These are deliberately not documented
(internal_cpu_topology, term()) -> term();
(sequential_tracer, pid() | port() | false) -> pid() | port() | false;
@@ -2260,6 +2536,7 @@ tuple_to_list(_Tuple) ->
(multi_scheduling_blockers) -> [PID :: pid()];
(nif_version) -> string();
(otp_release) -> string();
+ (os_monotonic_time_source) -> [{atom(),term()}];
(port_count) -> non_neg_integer();
(port_limit) -> pos_integer();
(process_count) -> pos_integer();
@@ -2277,10 +2554,14 @@ tuple_to_list(_Tuple) ->
(scheduler_id) -> SchedulerId :: pos_integer();
(schedulers | schedulers_online) -> pos_integer();
(smp_support) -> boolean();
+ (start_time) -> integer();
(system_version) -> string();
(system_architecture) -> string();
(threads) -> boolean();
(thread_pool_size) -> non_neg_integer();
+ (time_correction) -> true | false;
+ (time_offset) -> preliminary | final | volatile;
+ (time_warp_mode) -> no_time_warp | single_time_warp | multi_time_warp;
(tolerant_timeofday) -> enabled | disabled;
(trace_control_word) -> non_neg_integer();
(update_cpu_info) -> changed | unchanged;
@@ -3047,16 +3328,6 @@ integer_to_binary(I0, Base, R0) ->
true -> integer_to_binary(I1, Base, R1)
end.
-%% erlang:flush_monitor_message/2 is for internal use only!
-%%
-%% erlang:demonitor(Ref, [flush]) traps to
-%% erlang:flush_monitor_message(Ref, Res) when
-%% it needs to flush a monitor message.
-flush_monitor_message(Ref, Res) when erlang:is_reference(Ref),
- erlang:is_atom(Res) ->
- receive {_, Ref, _, _, _} -> ok after 0 -> ok end,
- Res.
-
-record(cpu, {node = -1,
processor = -1,
processor_node = -1,
diff --git a/erts/preloaded/src/erts_internal.erl b/erts/preloaded/src/erts_internal.erl
index 5756d80424..e2c3d40f61 100644
--- a/erts/preloaded/src/erts_internal.erl
+++ b/erts/preloaded/src/erts_internal.erl
@@ -38,6 +38,18 @@
-export([check_process_code/2]).
+-export([flush_monitor_messages/3]).
+
+-export([time_unit/0]).
+
+-export([bif_timer_server/2]).
+
+-export([get_bif_timer_servers/0, create_bif_timer/0, access_bif_timer/1]).
+
+-export([monitor_process/2]).
+
+-export([is_system_process/1]).
+
%%
%% Await result of send to port
%%
@@ -195,3 +207,272 @@ map_type(_M) ->
map_hashmap_children(_M) ->
erlang:nif_error(undefined).
+
+-spec erts_internal:flush_monitor_messages(Ref, Multi, Res) -> term() when
+ Ref :: reference(),
+ Multi :: boolean(),
+ Res :: term().
+
+%% erlang:demonitor(Ref, [flush]) traps to
+%% erts_internal:flush_monitor_messages(Ref, Res) when
+%% it needs to flush monitor messages.
+flush_monitor_messages(Ref, Multi, Res) when is_reference(Ref) ->
+ receive
+ {_, Ref, _, _, _} ->
+ case Multi of
+ false ->
+ Res;
+ _ ->
+ flush_monitor_messages(Ref, Multi, Res)
+ end
+ after 0 ->
+ Res
+ end.
+
+-spec erts_internal:time_unit() -> pos_integer().
+
+time_unit() ->
+ erlang:nif_error(undefined).
+
+-spec erts_internal:get_bif_timer_servers() -> Pids when
+ Pid :: pid(),
+ Pids :: [Pid].
+
+get_bif_timer_servers() ->
+ erlang:nif_error(undefined).
+
+-spec erts_internal:create_bif_timer() -> Res when
+ Res :: {reference(), pid(), reference()}.
+
+create_bif_timer() ->
+ erlang:nif_error(undefined).
+
+-spec erts_internal:access_bif_timer(Ref) -> Res when
+ Ref :: reference(),
+ Res :: {reference(), pid(), reference()}.
+
+access_bif_timer(_Ref) ->
+ erlang:nif_error(undefined).
+
+-spec erts_internal:monitor_process(Pid, Ref) -> boolean() when
+ Pid :: pid(),
+ Ref :: reference().
+
+monitor_process(_Pid, _Ref) ->
+ erlang:nif_error(undefined).
+
+-spec erts_internal:is_system_process(Pid) -> boolean() when
+ Pid :: pid().
+
+is_system_process(_Pid) ->
+ erlang:nif_error(undefined).
+
+%%
+%% BIF timer servers
+%%
+
+-record(tsrv_state, {rtab,
+ ttab,
+ btr,
+ unit,
+ next}).
+
+bif_timer_server(N, BTR) ->
+ try
+ tsrv_loop(tsrv_init_static_state(N, BTR), infinity)
+ catch
+ Type:Reason ->
+ erlang:display({'BIF_timer_server',
+ {Type, Reason},
+ erlang:get_stacktrace()}),
+ exit(Reason)
+ end.
+
+tsrv_init_static_state(N, BTR) ->
+ process_flag(trap_exit, true),
+ NList = integer_to_list(N),
+ RTabName = list_to_atom("BIF_timer_reference_table_" ++ NList),
+ TTabName = list_to_atom("BIF_timer_time_table_" ++ NList),
+ #tsrv_state{rtab = ets:new(RTabName,
+ [set, private, {keypos, 2}]),
+ ttab = ets:new(TTabName,
+ [ordered_set, private, {keypos, 1}]),
+ btr = BTR,
+ unit = erts_internal:time_unit(),
+ next = infinity}.
+
+
+tsrv_loop(#tsrv_state{unit = Unit} = StaticState, Nxt) ->
+ CallTime = erlang:monotonic_time(),
+ %% 'infinity' is greater than all integers...
+ NewNxt = case CallTime >= Nxt of
+ true ->
+ tsrv_handle_timeout(CallTime, StaticState);
+ false ->
+ TMO = try
+ (1000*(Nxt - CallTime - 1)) div Unit + 1
+ catch
+ error:badarith when Nxt == infinity -> infinity
+ end,
+ receive
+ Msg ->
+ tsrv_handle_msg(Msg, StaticState, Nxt)
+ after TMO ->
+ Nxt
+ end
+ end,
+ tsrv_loop(StaticState, NewNxt).
+
+tsrv_handle_msg({set_timeout, BTR, Proc, Time, TRef, Msg},
+ #tsrv_state{rtab = RTab,
+ ttab = TTab,
+ btr = BTR},
+ Nxt) when erlang:is_integer(Time) ->
+ RcvTime = erlang:monotonic_time(),
+ case Time =< RcvTime of
+ true ->
+ try Proc ! Msg catch _:_ -> ok end,
+ Nxt;
+ false ->
+ Ins = case erlang:is_atom(Proc) of
+ true ->
+ true;
+ false ->
+ try
+ erts_internal:monitor_process(Proc, TRef)
+ catch
+ _:_ -> false
+ end
+ end,
+ case Ins of
+ false ->
+ Nxt;
+ true ->
+ TKey = {Time, TRef},
+ true = ets:insert(RTab, TKey),
+ true = ets:insert(TTab, {TKey, Proc, Msg}),
+ case Time < Nxt of
+ true -> Time;
+ false -> Nxt
+ end
+ end
+ end;
+tsrv_handle_msg({cancel_timeout, BTR, From, Reply, Req, TRef},
+ #tsrv_state{rtab = RTab,
+ ttab = TTab,
+ unit = Unit,
+ btr = BTR},
+ Nxt) ->
+ case ets:lookup(RTab, TRef) of
+ [] ->
+ case Reply of
+ false ->
+ ok;
+ _ ->
+ try From ! {cancel_timer, Req, false} catch _:_ -> ok end
+ end,
+ Nxt;
+ [{Time, TRef} = TKey] ->
+ ets:delete(RTab, TRef),
+ ets:delete(TTab, TKey),
+ erlang:demonitor(TRef),
+ case Reply of
+ false ->
+ ok;
+ _ ->
+ RcvTime = erlang:monotonic_time(),
+ RT = case Time =< RcvTime of
+ true ->
+ 0;
+ false ->
+ ((1000*(Time - RcvTime)) div Unit)
+ end,
+ try From ! {cancel_timer, Req, RT} catch _:_ -> ok end
+ end,
+ case Time =:= Nxt of
+ false ->
+ Nxt;
+ true ->
+ case ets:first(TTab) of
+ '$end_of_table' -> infinity;
+ {NextTime, _TRef} -> NextTime
+ end
+ end
+ end;
+tsrv_handle_msg({read_timeout, BTR, From, Req, TRef},
+ #tsrv_state{rtab = RTab,
+ unit = Unit,
+ btr = BTR},
+ Nxt) ->
+ case ets:lookup(RTab, TRef) of
+ [] ->
+ try From ! {read_timer, Req, false} catch _:_ -> ok end;
+ [{Time, TRef}] ->
+ RcvTime = erlang:monotonic_time(),
+ RT = case Time =< RcvTime of
+ true -> 0;
+ false -> (1000*(Time - RcvTime)) div Unit
+ end,
+ try From ! {read_timer, Req, RT} catch _:_ -> ok end
+ end,
+ Nxt;
+tsrv_handle_msg({'DOWN', TRef, process, _, _},
+ #tsrv_state{rtab = RTab,
+ ttab = TTab},
+ Nxt) ->
+ case ets:lookup(RTab, TRef) of
+ [] ->
+ Nxt;
+ [{Time, TRef} = TKey] ->
+ ets:delete(RTab, TRef),
+ ets:delete(TTab, TKey),
+ case Time =:= Nxt of
+ false ->
+ Nxt;
+ true ->
+ case ets:first(TTab) of
+ '$end_of_table' -> infinity;
+ {NextTime, _} -> NextTime
+ end
+ end
+ end;
+tsrv_handle_msg({cancel_all_timeouts, BTR, From, Ref},
+ #tsrv_state{rtab = RTab,
+ ttab = TTab,
+ btr = BTR},
+ _Nxt) ->
+ tsrv_delete_monitor_objects(RTab),
+ ets:delete_all_objects(TTab),
+ try From ! {canceled_all_timeouts, Ref} catch _:_ -> ok end,
+ infinity;
+tsrv_handle_msg(_GarbageMsg, _StaticState, Nxt) ->
+ Nxt.
+
+tsrv_delete_monitor_objects(RTab) ->
+ case ets:first(RTab) of
+ '$end_of_table' ->
+ ok;
+ TRef ->
+ erlang:demonitor(TRef),
+ ets:delete(RTab, TRef),
+ tsrv_delete_monitor_objects(RTab)
+ end.
+
+tsrv_handle_timeout(CallTime, #tsrv_state{rtab = RTab,
+ ttab = TTab} = S) ->
+ case ets:first(TTab) of
+ '$end_of_table' ->
+ infinity;
+ {Time, _TRef} when Time > CallTime ->
+ Time;
+ {_Time, TRef} = TKey ->
+ [{TKey, Proc, Msg}] = ets:lookup(TTab, TKey),
+ case erlang:is_pid(Proc) of
+ false -> ok;
+ _ -> erlang:demonitor(TRef)
+ end,
+ ets:delete(TTab, TKey),
+ ets:delete(RTab, TRef),
+ try Proc ! Msg catch _:_ -> ok end,
+ tsrv_handle_timeout(CallTime, S)
+ end.
diff --git a/erts/preloaded/src/init.erl b/erts/preloaded/src/init.erl
index e95e11b3e6..48c5c37717 100644
--- a/erts/preloaded/src/init.erl
+++ b/erts/preloaded/src/init.erl
@@ -522,6 +522,7 @@ shutdown_pids(Heart,BootPid,State) ->
Timer = shutdown_timer(State#state.flags),
catch shutdown(State#state.kernel,BootPid,Timer,State),
kill_all_pids(Heart), % Even the shutdown timer.
+ cancel_all_bif_timeouts(),
kill_all_ports(Heart),
flush_timout(Timer).
@@ -580,6 +581,30 @@ resend([ExitMsg|Exits]) ->
resend(_) ->
ok.
+
+cancel_all_bif_timeouts() ->
+ TSrvs = erts_internal:get_bif_timer_servers(),
+ Ref = make_ref(),
+ {BTR, _TSrv} = erts_internal:access_bif_timer(Ref), %% Cheat...
+ request_cancel_all_bif_timeouts(Ref, BTR, TSrvs),
+ wait_response_cancel_all_bif_timeouts(Ref, BTR, TSrvs),
+ ok.
+
+request_cancel_all_bif_timeouts(_Ref, _BTR, []) ->
+ ok;
+request_cancel_all_bif_timeouts(Ref, BTR, [TSrv|TSrvs]) ->
+ TSrv ! {cancel_all_timeouts, BTR, self(), {Ref, TSrv}},
+ request_cancel_all_bif_timeouts(Ref, BTR, TSrvs).
+
+wait_response_cancel_all_bif_timeouts(_Ref, _BTR, []) ->
+ ok;
+wait_response_cancel_all_bif_timeouts(Ref, BTR, [TSrv|TSrvs]) ->
+ receive
+ {canceled_all_timeouts, {Ref, TSrv}} ->
+ wait_response_cancel_all_bif_timeouts(Ref, BTR, TSrvs)
+ end.
+
+
%%
%% Kill all existing pids in the system (except init and heart).
kill_all_pids(Heart) ->
@@ -591,12 +616,9 @@ kill_all_pids(Heart) ->
kill_all_pids(Heart) % Continue until all are really killed.
end.
-%% All except zombies.
-alive_processes() ->
- [P || P <- processes(), erlang:is_process_alive(P)].
-
+%% All except system processes.
get_pids(Heart) ->
- Pids = alive_processes(),
+ Pids = [P || P <- processes(), not erts_internal:is_system_process(P)],
delete(Heart,self(),Pids).
delete(Heart,Init,[Heart|Pids]) -> delete(Heart,Init,Pids);
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-05 08:59:53 +0000