consensus

type Acceptor interface {
	// Accept must be called before [containerID] is committed to the VM as
	// accepted.
	//
	// If the returned error is non-nil, the chain associated with [ctx] should
	// shut down and not commit [container] or any other container to its
	// database as accepted.
	Accept(ctx *consensuscontext.Context, containerID ids.ID, container []byte) error
}

type AcceptorGroup interface {
	// Calling Accept() calls all of the registered acceptors for the relevant
	// chain.
	Acceptor

	// RegisterAcceptor causes [acceptor] to be called every time an operation
	// is accepted on chain [chainID].
	// If [dieOnError], chain [chainID] stops if Accept returns a non-nil error.
	RegisterAcceptor(chainID ids.ID, acceptorName string, acceptor Acceptor, dieOnError bool) error

	// DeregisterAcceptor removes an acceptor from the group.
	DeregisterAcceptor(chainID ids.ID, acceptorName string) error
}