macula_pubsub_delivery (macula v0.20.5)

Message routing and delivery to local and remote subscribers. Combines local registry and remote discovery for full fan-out.

Summary

Types

delivery_result/0

discovery_fun/0

message/0

send_fun/0

Functions

deliver_local(Message, Registry)

Deliver message to all matching local subscribers. Crashes if subscriber callback fails - indicates dead subscriber process.

deliver_remote(Message, RemoteSubscribers, SendFun)

Deliver message to remote subscribers via QUIC.

get_matching_patterns(Topic, Registry)

Get all unique patterns that match the topic. Used for remote subscriber discovery.

publish(Message, Registry, DiscoveryFun, SendFun)

Publish message to both local and remote subscribers. Returns {LocalResults, RemoteResults}.

Types

delivery_result/0

-type delivery_result() :: ok | {ok, term()} | {error, term()}.

discovery_fun/0

-type discovery_fun() :: fun((binary()) -> {ok, [map()]} | {error, term()}).

message/0

-type message() :: #{topic := binary(), payload := term(), timestamp := integer()}.

send_fun/0

-type send_fun() :: fun((message(), macula_pubsub_discovery:address()) -> ok | {error, term()}).

Functions

deliver_local(Message, Registry)

-spec deliver_local(message(), macula_pubsub_registry:registry()) -> [delivery_result()].

Deliver message to all matching local subscribers. Crashes if subscriber callback fails - indicates dead subscriber process.

deliver_remote(Message, RemoteSubscribers, SendFun)

-spec deliver_remote(message(), [macula_pubsub_discovery:subscriber()], send_fun()) ->
                        [delivery_result()].

Deliver message to remote subscribers via QUIC.

get_matching_patterns(Topic, Registry)

-spec get_matching_patterns(binary(), macula_pubsub_registry:registry()) -> [binary()].

Get all unique patterns that match the topic. Used for remote subscriber discovery.

publish(Message, Registry, DiscoveryFun, SendFun)

-spec publish(message(), macula_pubsub_registry:registry(), discovery_fun(), send_fun()) ->
                 {[delivery_result()], [delivery_result()]}.

Publish message to both local and remote subscribers. Returns {LocalResults, RemoteResults}.