shackle
0.6.20
Cadre client réseau Erlang haute performance
- behavior ( shackle_client ).
- export ([
init / 0 ,
setup / 2 ,
handle_request / 2 ,
handle_data / 2 ,
terminate / 1
]).
- record ( state , {
buffer = <<>> :: binary (),
request_counter = 0 :: non_neg_integer ()
}).
- spec init ( Options :: term ()) ->
{ ok , State :: term ()} |
{ error , Reason :: term ()}.
init ( _Options ) ->
{ ok , # state {}}.
- spec setup ( Socket :: inet : socket (), State :: term ()) ->
{ ok , State :: term ()} |
{ error , Reason :: term (), State :: term ()}.
setup ( Socket , State ) ->
case gen_tcp : send ( Socket , << " INIT " >>) of
ok ->
case gen_tcp : recv ( Socket , 0 ) of
{ ok , << " OK " >>} ->
{ ok , State };
{ error , Reason } ->
{ error , Reason , State }
end ;
{ error , Reason } ->
{ error , Reason , State }
end .
- spec handle_request ( Request :: term (), State :: term ()) ->
{ ok , RequestId :: external_request_id (), Data :: iodata (), State :: term ()}.
handle_request ( noop , State ) ->
Data = arithmetic_protocol : request ( 0 , noop , 0 , 0 ),
{ ok , undefined , Data , State };
handle_request ({ Operation , A , B }, # state {
request_counter = RequestCounter
} = State ) ->
RequestId = request_id ( RequestCounter ),
Data = request ( RequestId , Operation , A , B ),
{ ok , RequestId , Data , State # state {
request_counter = RequestCounter + 1
}}.
- spec handle_data ( Data :: binary (), State :: term ()) ->
{ ok , [{ RequestId :: external_request_id (), Reply :: term ()}], State :: term ()}.
handle_data ( Data , # state {
buffer = Buffer
} = State ) ->
Data2 = << Buffer / binary , Data / binary >>,
{ Replies , Buffer2 } = parse_replies ( Data2 , []),
{ ok , Replies , State # state {
buffer = Buffer2
}}.
- spec terminate ( State :: term ()) -> ok .
terminate ( _State ) -> ok .
shackle_pool : start ( shackle_pool : name (), client (), client_options (), pool_options ())
Nom | Taper | Défaut | Description |
---|---|---|---|
adresse | inet:adresse_ip() | inet: nom d'hôte () | "127.0.0.1" | adresse du serveur (anciennement ip) |
port | inet:numéro_port() | indéfini | port du serveur |
protocole | manille_tcp | manille_udp | manille_ssl | manille_tcp | protocole du serveur |
reconnecter | booléen() | vrai | reconnecter les connexions fermées |
reconnect_time_max | pos_entier() | infini | 120000 | temps de reconnexion maximum en millisecondes |
reconnect_time_min | pos_entier() | 1000 | temps de reconnexion minimum en millisecondes |
options_socket | [gen_tcp:connect_option() | gen_udp:option()] | [] | options passées au socket |
Nom | Taper | Défaut | Description |
---|---|---|---|
backlog_size | pos_entier() | infini | 1024 | nombre maximum de requêtes simultanées par connexion |
max_retries | non_neg_integer() | 3 | nombre maximum d'essais pour trouver un serveur actif |
taille_piscine | pos_entier() | 16 | nombre de connexions |
stratégie_pool | aléatoire | tournoi à la ronde | aléatoire | stratégie de sélection de connexion |
1 > shackle : call ( pool_name , { get , << " test " >>}).
{ ok , << " bar " >>}
2 > { ok , ReqId } = shackle : cast ( pool_name , { get , << " foo " >>}, 500 ).
{ ok , { anchor , anchor_client , # Ref < 0.0 . 0.2407 > }}
3 > shackle : receive_response ( ReqId ).
{ ok , << " bar " >>}
Shackle s'intègre à la bibliothèque de télémétrie indépendante du backend. Voir shackle_telemetry
pour la liste des événements de télémétrie que shackle peut émettre.
make dialyzer
make eunit
make xref
Pour exécuter des cibles de tests de performances, vous devez d'abord démarrer le serveur :
./bin/server.sh
Ensuite, vous pouvez exécuter le bench
ou la cible profile
:
make bench
make profile
Nom | Description |
---|---|
ancre | Client Memcaché |
nœud aspike | Client Aerospike |
bouée | Client HTTP 1.1 |
éclater | Producteur Kafka |
marina | Cassandra Client CQL |
statsderl | Client StatsD |
The MIT License (MIT)
Copyright (c) 2015-2023 Louis-Philippe Gauthier
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.