diff options
Diffstat (limited to 'lib/stdlib/src')
| -rw-r--r-- | lib/stdlib/src/supervisor.erl | 123 |
1 files changed, 63 insertions, 60 deletions
diff --git a/lib/stdlib/src/supervisor.erl b/lib/stdlib/src/supervisor.erl index 8e1ac1bb5c..d103487218 100644 --- a/lib/stdlib/src/supervisor.erl +++ b/lib/stdlib/src/supervisor.erl @@ -849,96 +849,92 @@ monitor_child(Pid) -> %% can have an significative overhead here. %%----------------------------------------------------------------- terminate_dynamic_children(Child, Dynamics, SupName) -> - Pids = monitor_dynamic_children(Child, Dynamics, SupName), - Sz = ?SETS:size(Pids), - case Child#child.shutdown of - brutal_kill -> - ?SETS:fold(fun(P, _) -> exit(P, kill) end, ok, Pids), - wait_dynamic_children(Child, Pids, SupName, Sz, undefined); - infinity -> - ?SETS:fold(fun(P, _) -> exit(P, shutdown) end, ok, Pids), - wait_dynamic_children(Child, Pids, SupName, Sz, undefined); - Time -> - ?SETS:fold(fun(P, _) -> exit(P, shutdown) end, ok, Pids), - TRef = erlang:start_timer(Time, self(), kill), - wait_dynamic_children(Child, Pids, SupName, Sz, TRef) - end. - - -monitor_dynamic_children(#child{restart_type=temporary} = Child, - Dynamics, SupName) -> - ?SETS:fold(fun(P, Acc) -> + {Pids, EStack0} = monitor_dynamic_children(Child, Dynamics), + Sz = ?SETS:size(Pids), + EStack = case Child#child.shutdown of + brutal_kill -> + ?SETS:fold(fun(P, _) -> exit(P, kill) end, ok, Pids), + wait_dynamic_children(Child, Pids, Sz, undefined, EStack0); + infinity -> + ?SETS:fold(fun(P, _) -> exit(P, shutdown) end, ok, Pids), + wait_dynamic_children(Child, Pids, Sz, undefined, EStack0); + Time -> + ?SETS:fold(fun(P, _) -> exit(P, shutdown) end, ok, Pids), + TRef = erlang:start_timer(Time, self(), kill), + wait_dynamic_children(Child, Pids, Sz, TRef, EStack0) + end, + %% Unrool stacked errors and report them + ?DICT:fold(fun(Reason, Ls, _) -> + report_error(shutdown_error, Reason, + Child#child{pid=Ls}, SupName) + end, ok, EStack). + + +monitor_dynamic_children(#child{restart_type=temporary}, Dynamics) -> + ?SETS:fold(fun(P, {Pids, EStack}) -> case monitor_child(P) of ok -> - ?SETS:add_element(P, Acc); + {?SETS:add_element(P, Pids), EStack}; {error, normal} -> - Acc; - {error, OtherReason} -> - report_error(shutdown_error, OtherReason, - Child#child{pid=P}, SupName), - Acc + {Pids, EStack}; + {error, Reason} -> + {Pids, ?DICT:append(Reason, P, EStack)} end - end, ?SETS:new(), Dynamics); -monitor_dynamic_children(#child{restart_type=RType} = Child, - Dynamics, SupName) -> - ?DICT:fold(fun(P, _, Acc) -> + end, {?SETS:new(), ?DICT:new()}, Dynamics); +monitor_dynamic_children(#child{restart_type=RType}, Dynamics) -> + ?DICT:fold(fun(P, _, {Pids, EStack}) -> case monitor_child(P) of ok -> - ?SETS:add_element(P, Acc); + {?SETS:add_element(P, Pids), EStack}; {error, normal} when RType =/= permanent -> - Acc; - {error, OtherReason} -> - report_error(shutdown_error, OtherReason, - Child#child{pid=P}, SupName), - Acc + {Pids, EStack}; + {error, Reason} -> + {Pids, ?DICT:append(Reason, P, EStack)} end - end, ?SETS:new(), Dynamics). - + end, {?SETS:new(), ?DICT:new()}, Dynamics). -wait_dynamic_children(_Child, _Pids, _SupName, 0, undefined) -> - ok; -wait_dynamic_children(_Child, _Pids, _SupName, 0, TRef) -> +wait_dynamic_children(_Child, _Pids, 0, undefined, EStack) -> + EStack; +wait_dynamic_children(_Child, _Pids, 0, TRef, EStack) -> %% If the timer has expired before its cancellation, we must empty the %% mail-box of the 'timeout'-message. erlang:cancel_timer(TRef), receive {timeout, TRef, kill} -> - ok + EStack after 0 -> - ok + EStack end; -wait_dynamic_children(#child{shutdown=brutal_kill} = Child, - Pids, SupName, Sz, TRef) -> +wait_dynamic_children(#child{shutdown=brutal_kill} = Child, Pids, Sz, + TRef, EStack) -> receive {'DOWN', _MRef, process, Pid, killed} -> - wait_dynamic_children(Child, ?SETS:del_element(Pid, Pids), SupName, - Sz-1, TRef); + wait_dynamic_children(Child, ?SETS:del_element(Pid, Pids), Sz-1, + TRef, EStack); {'DOWN', _MRef, process, Pid, Reason} -> - report_error(shutdown_error, Reason, Child#child{pid=Pid}, SupName), - wait_dynamic_children(Child, ?SETS:del_element(Pid, Pids), SupName, - Sz-1, TRef) + wait_dynamic_children(Child, ?SETS:del_element(Pid, Pids), Sz-1, + TRef, ?DICT:append(Reason, Pid, EStack)) end; -wait_dynamic_children(#child{restart_type=RType} = Child, Pids, - SupName, Sz, TRef) -> +wait_dynamic_children(#child{restart_type=RType} = Child, Pids, Sz, + TRef, EStack) -> receive {'DOWN', _MRef, process, Pid, shutdown} -> - wait_dynamic_children(Child, ?SETS:del_element(Pid, Pids), SupName, - Sz-1, TRef); + wait_dynamic_children(Child, ?SETS:del_element(Pid, Pids), Sz-1, + TRef, EStack); {'DOWN', _MRef, process, Pid, normal} when RType =/= permanent -> - wait_dynamic_children(Child, ?SETS:del_element(Pid, Pids), SupName, - Sz-1, TRef); + wait_dynamic_children(Child, ?SETS:del_element(Pid, Pids), Sz-1, + TRef, EStack); {'DOWN', _MRef, process, Pid, Reason} -> - report_error(shutdown_error, Reason, Child#child{pid=Pid}, SupName), - wait_dynamic_children(Child, ?SETS:del_element(Pid, Pids), SupName, - Sz-1, TRef); + wait_dynamic_children(Child, ?SETS:del_element(Pid, Pids), Sz-1, + TRef, ?DICT:append(Reason, Pid, EStack)); {timeout, TRef, kill} -> ?SETS:fold(fun(P, _) -> exit(P, kill) end, ok, Pids), - wait_dynamic_children(Child, Pids, SupName, Sz, undefined) + wait_dynamic_children(Child, Pids, Sz-1, undefined, EStack) end. %%----------------------------------------------------------------- @@ -1243,12 +1239,19 @@ report_error(Error, Reason, Child, SupName) -> error_logger:error_report(supervisor_report, ErrorMsg). -extract_child(Child) -> +extract_child(Child) when is_pid(Child#child.pid) -> [{pid, Child#child.pid}, {name, Child#child.name}, {mfargs, Child#child.mfargs}, {restart_type, Child#child.restart_type}, {shutdown, Child#child.shutdown}, + {child_type, Child#child.child_type}]; +extract_child(Child) -> + [{nb_children, length(Child#child.pid)}, + {name, Child#child.name}, + {mfargs, Child#child.mfargs}, + {restart_type, Child#child.restart_type}, + {shutdown, Child#child.shutdown}, {child_type, Child#child.child_type}]. report_progress(Child, SupName) -> |