| % Licensed under the Apache License, Version 2.0 (the "License"); you may not |
| % use this file except in compliance with the License. You may obtain a copy of |
| % the License at |
| % |
| % http://www.apache.org/licenses/LICENSE-2.0 |
| % |
| % Unless required by applicable law or agreed to in writing, software |
| % distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| % WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| % License for the specific language governing permissions and limitations under |
| % the License. |
| |
| -module(global_changes_sup). |
| -behavior(supervisor). |
| |
| |
| -export([start_link/0]). |
| |
| -export([init/1]). |
| |
| -export([handle_config_change/5]). |
| -export([handle_config_terminate/3]). |
| |
| -define(LISTENER, global_changes_listener). |
| -define(SERVER, global_changes_server). |
| |
| start_link() -> |
| supervisor:start_link({local, ?MODULE}, ?MODULE, []). |
| |
| |
| init([]) -> |
| {ok, { |
| {one_for_one, 5, 10}, couch_epi:register_service(global_changes_epi, [ |
| { |
| config_listener_mon, |
| {config_listener_mon, start_link, [?MODULE, nil]}, |
| permanent, |
| 5000, |
| worker, |
| [config_listener_mon] |
| }, |
| { |
| global_changes_server, |
| {global_changes_server, start_link, []}, |
| permanent, |
| 5000, |
| worker, |
| [global_changes_server] |
| } |
| ])}}. |
| |
| handle_config_change("global_changes", "max_event_delay", MaxDelayStr, _, _) -> |
| try list_to_integer(MaxDelayStr) of |
| MaxDelay -> |
| gen_server:cast(?LISTENER, {set_max_event_delay, MaxDelay}) |
| catch error:badarg -> |
| ok |
| end, |
| {ok, nil}; |
| |
| handle_config_change("global_changes", "max_write_delay", MaxDelayStr, _, _) -> |
| try list_to_integer(MaxDelayStr) of |
| MaxDelay -> |
| gen_server:cast(?SERVER, {set_max_write_delay, MaxDelay}) |
| catch error:badarg -> |
| ok |
| end, |
| {ok, nil}; |
| |
| handle_config_change("global_changes", "update_db", "false", _, _) -> |
| gen_server:cast(?LISTENER, {set_update_db, false}), |
| gen_server:cast(?SERVER, {set_update_db, false}), |
| {ok, nil}; |
| |
| handle_config_change("global_changes", "update_db", _, _, _) -> |
| gen_server:cast(?LISTENER, {set_update_db, true}), |
| gen_server:cast(?SERVER, {set_update_db, true}), |
| {ok, nil}; |
| |
| handle_config_change(_, _, _, _, _) -> |
| {ok, nil}. |
| |
| handle_config_terminate(_Server, _Reason, _State) -> |
| ok. |