Crate sc_utils

Utilities Primitives for Substrate

Features

metered

This feature changes the behaviour of the function mpsc::tracing_unbounded. With the disabled feature this function is an alias to futures::channel::mpsc::unbounded. However, when the feature is enabled it creates wrapper types to UnboundedSender<T> and UnboundedReceiver<T> to register every send/received/dropped action happened on the channel.

Also this feature creates and registers a prometheus vector with name unbounded_channel_len and labels:

Label	Description
entity	Name of channel passed to tracing_unbounded
action	One of send/received/dropped

Modules

• id_sequence
  Produce opaque sequential IDs.
• metrics
  Metering primitives and globals
• mpsc
  Features to meter unbounded channels
• notification
  Provides mpsc notification channel that can be instantiated after it’s been shared to the consumer and producers entities.
• pubsub
  Provides means to implement a typical Pub/Sub mechanism.
• status_sinks