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%% @doc Manage starting and stopping of configured listeners |
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-module(mongoose_listener). |
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-include("mongoose.hrl"). |
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%% Only for tests |
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-export([start_listener/1, stop_listener/1]). |
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-ignore_xref([start_listener/1, stop_listener/1]). |
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%% API |
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-export([start/0, stop/0, socket_type/1]). |
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-callback start_listener(options()) -> ok. |
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-callback socket_type() -> socket_type(). |
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-type options() :: #{port := inet:port_number(), |
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ip_tuple := inet:ip_address(), |
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ip_address := string(), |
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ip_version := 4 | 6, |
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proto := proto(), |
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any() => any()}. |
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-type id() :: {inet:port_number(), inet:ip_address(), proto()}. |
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-type proto() :: tcp. |
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-type socket_type() :: independent | xml_stream | raw. |
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-export_type([options/0, id/0, proto/0, socket_type/0]). |
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%% API |
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start() -> |
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lists:foreach(fun start_listener/1, mongoose_config:get_opt(listen)). |
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stop() -> |
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lists:foreach(fun stop_listener/1, mongoose_config:get_opt(listen)). |
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-spec socket_type(module()) -> any(). |
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socket_type(Module) -> |
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Module:socket_type(). |
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%% Internal functions |
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start_listener(Opts = #{module := Module}) -> |
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try |
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Module:start_listener(Opts) % This function should call mongoose_listener_sup:start_child/1 |
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catch |
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Class:Reason:Stacktrace -> |
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?LOG_CRITICAL(#{what => listener_failed_to_start, |
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text => <<"Failed to start a listener">>, |
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module => Module, opts => Opts, |
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class => Class, reason => Reason, stacktrace => Stacktrace}), |
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erlang:raise(Class, Reason, Stacktrace) |
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end. |
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stop_listener(Opts) -> |
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ListenerId = mongoose_listener_config:listener_id(Opts), |
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supervisor:terminate_child(mongoose_listener_sup, ListenerId), |
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supervisor:delete_child(mongoose_listener_sup, ListenerId). |