diff options
Diffstat (limited to 'lib/kernel/src/kernel.erl')
| -rw-r--r-- | lib/kernel/src/kernel.erl | 74 |
1 files changed, 41 insertions, 33 deletions
diff --git a/lib/kernel/src/kernel.erl b/lib/kernel/src/kernel.erl index c68d04e279..bfa091a036 100644 --- a/lib/kernel/src/kernel.erl +++ b/lib/kernel/src/kernel.erl @@ -68,7 +68,7 @@ config_change(Changed, New, Removed) -> %%% auth, ...) ...) %%% %%% The rectangular boxes are supervisors. All supervisors except -%%% for kernel_safe_sup terminates the enitre erlang node if any of +%%% for kernel_safe_sup terminates the entire erlang node if any of %%% their children dies. Any child that can't be restarted in case %%% of failure must be placed under one of these supervisors. Any %%% other child must be placed under safe_sup. These children may @@ -145,26 +145,11 @@ init([]) -> {ok, {SupFlags, [Code, File, StdError, User, LoggerSup, Config, RefC, SafeSup]}}; _ -> - Rpc = #{id => rex, - start => {rpc, start_link, []}, - restart => permanent, - shutdown => 2000, - type => worker, - modules => [rpc]}, - - Global = #{id => global_name_server, - start => {global, start_link, []}, - restart => permanent, - shutdown => 2000, - type => worker, - modules => [global]}, - - GlGroup = #{id => global_group, - start => {global_group,start_link,[]}, - restart => permanent, - shutdown => 2000, - type => worker, - modules => [global_group]}, + DistChildren = + case application:get_env(kernel, start_distribution) of + {ok, false} -> []; + _ -> start_distribution() + end, InetDb = #{id => inet_db, start => {inet_db, start_link, []}, @@ -173,13 +158,6 @@ init([]) -> type => worker, modules => [inet_db]}, - NetSup = #{id => net_sup, - start => {erl_distribution, start_link, []}, - restart => permanent, - shutdown => infinity, - type => supervisor, - modules => [erl_distribution]}, - SigSrv = #{id => erl_signal_server, start => {gen_event, start_link, [{local, erl_signal_server}]}, restart => permanent, @@ -187,14 +165,11 @@ init([]) -> type => worker, modules => dynamic}, - DistAC = start_dist_ac(), - Timer = start_timer(), {ok, {SupFlags, - [Code, Rpc, Global, InetDb | DistAC] ++ - [NetSup, GlGroup, File, SigSrv, - StdError, User, Config, RefC, SafeSup, LoggerSup] ++ Timer}} + [Code, InetDb | DistChildren] ++ + [File, SigSrv, StdError, User, Config, RefC, SafeSup, LoggerSup] ++ Timer}} end; init(safe) -> SupFlags = #{strategy => one_for_one, @@ -213,6 +188,39 @@ init(safe) -> {ok, {SupFlags, Boot ++ DiskLog ++ Pg2}}. +start_distribution() -> + Rpc = #{id => rex, + start => {rpc, start_link, []}, + restart => permanent, + shutdown => 2000, + type => worker, + modules => [rpc]}, + + Global = #{id => global_name_server, + start => {global, start_link, []}, + restart => permanent, + shutdown => 2000, + type => worker, + modules => [global]}, + + DistAC = start_dist_ac(), + + NetSup = #{id => net_sup, + start => {erl_distribution, start_link, []}, + restart => permanent, + shutdown => infinity, + type => supervisor, + modules => [erl_distribution]}, + + GlGroup = #{id => global_group, + start => {global_group,start_link,[]}, + restart => permanent, + shutdown => 2000, + type => worker, + modules => [global_group]}, + + [Rpc, Global | DistAC] ++ [NetSup, GlGroup]. + start_dist_ac() -> Spec = [#{id => dist_ac, start => {dist_ac,start_link,[]}, |