| % 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(couch_replicator_notifier). |
| |
| -behaviour(gen_event). |
| -vsn(1). |
| |
| % public API |
| -export([start_link/1, stop/1, notify/1]). |
| |
| % gen_event callbacks |
| -export([init/1, terminate/2, code_change/3]). |
| -export([handle_event/2, handle_call/2, handle_info/2]). |
| |
| -include_lib("couch/include/couch_db.hrl"). |
| |
| start_link(FunAcc) -> |
| couch_event_sup:start_link(couch_replication, |
| {couch_replicator_notifier, make_ref()}, FunAcc). |
| |
| notify(Event) -> |
| gen_event:notify(couch_replication, Event). |
| |
| stop(Pid) -> |
| couch_event_sup:stop(Pid). |
| |
| |
| init(FunAcc) -> |
| {ok, FunAcc}. |
| |
| terminate(_Reason, _State) -> |
| ok. |
| |
| handle_event(Event, Fun) when is_function(Fun, 1) -> |
| Fun(Event), |
| {ok, Fun}; |
| handle_event(Event, {Fun, Acc}) when is_function(Fun, 2) -> |
| Acc2 = Fun(Event, Acc), |
| {ok, {Fun, Acc2}}. |
| |
| handle_call(_Msg, State) -> |
| {ok, ok, State}. |
| |
| handle_info(_Msg, State) -> |
| {ok, State}. |
| |
| code_change(_OldVsn, State, _Extra) -> |
| {ok, State}. |