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%% gen_server代码模板
-module(new_file).
-behaviour(gen_server).
% --------------------------------------------------------------------
% Include files
% --------------------------------------------------------------------
% --------------------------------------------------------------------
% External exports
-export([]).
% gen_server callbacks
-export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2, code_change/3]).
-record(state, {}).
% --------------------------------------------------------------------
% Function: init/1
% Description: Initiates the server
% Returns: {ok, State} |
% {ok, State, Timeout} |
% ignore |
% {stop, Reason}
% --------------------------------------------------------------------
init([]) ->
{ok, #state{}}.
% --------------------------------------------------------------------
% Function: handle_call/3
% Description: Handling call messages
% Returns: {reply, Reply, State} |
% {reply, Reply, State, Timeout} |
% {noreply, State} |
% {noreply, State, Timeout} |
% {stop, Reason, Reply, State} | (terminate/2 is called)
% {stop, Reason, State} (terminate/2 is called)
% --------------------------------------------------------------------
handle_call(Request, From, State) ->
Reply = ok,
{reply, Reply, State}.
% --------------------------------------------------------------------
% Function: handle_cast/2
% Description: Handling cast messages
% Returns: {noreply, State} |
% {noreply, State, Timeout} |
% {stop, Reason, State} (terminate/2 is called)
% --------------------------------------------------------------------
handle_cast(Msg, State) ->
{noreply, State}.
% --------------------------------------------------------------------
% Function: handle_info/2
% Description: Handling all non call/cast messages
% Returns: {noreply, State} |
% {noreply, State, Timeout} |
% {stop, Reason, State} (terminate/2 is called)
% --------------------------------------------------------------------
handle_info(Info, State) ->
{noreply, State}.
% --------------------------------------------------------------------
% Function: terminate/2
% Description: Shutdown the server
% Returns: any (ignored by gen_server)
% --------------------------------------------------------------------
terminate(Reason, State) ->
ok.
% --------------------------------------------------------------------
% Func: code_change/3
% Purpose: Convert process state when code is changed
% Returns: {ok, NewState}
% --------------------------------------------------------------------
code_change(OldVsn, State, Extra) ->
{ok, State}.
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