caf::upstream_msg Struct Reference

Stream messages that flow upstream, i.e., acks and drop messages. More...

#include <upstream_msg.hpp>

Inheritance diagram for caf::upstream_msg:

Classes
struct	ack_open
	Acknowledges a previous open message and finalizes a stream handshake. More...
struct	ack_batch
	Cumulatively acknowledges received batches and signalizes new demand from a sink to its source. More...
struct	drop
	Asks the source to discard any remaining credit and close this path after receiving an ACK for the last batch. More...
struct	forced_drop
	Propagates a fatal error from sinks to sources. More...

Public Types
using	alternatives
	Lists all possible options for the payload.
using	content_type = variant<ack_open, ack_batch, drop, forced_drop>
	Stores one of alternatives.

Public Member Functions
template<class T>
	upstream_msg (stream_slots id, actor_addr addr, T &&x)
	upstream_msg (upstream_msg &&)=default
	upstream_msg (const upstream_msg &)=default
upstream_msg &	operator= (upstream_msg &&)=default
upstream_msg &	operator= (const upstream_msg &)=default

Public Attributes
stream_slots	slots
	Stream slots of sender and receiver.
actor_addr	sender
	Address of the sender.
content_type	content
	Palyoad of the message.

Related Symbols
(Note that these are not member symbols.)
template<class T, class... Ts>
detail::enable_if_tt< detail::tl_contains< upstream_msg::alternatives, T >, upstream_msg >	make (stream_slots slots, actor_addr addr, Ts &&... xs)
template<class Inspector>
Inspector::result_type	inspect (Inspector &f, upstream_msg::ack_open &x)
template<class Inspector>
Inspector::result_type	inspect (Inspector &f, upstream_msg::ack_batch &x)
template<class Inspector>
Inspector::result_type	inspect (Inspector &f, upstream_msg::drop &)
template<class Inspector>
Inspector::result_type	inspect (Inspector &f, upstream_msg::forced_drop &x)
template<class Inspector>
Inspector::result_type	inspect (Inspector &f, upstream_msg &x)

Detailed Description

Stream messages that flow upstream, i.e., acks and drop messages.

Member Typedef Documentation

alternatives

using caf::upstream_msg::alternatives

Initial value:

 
    detail::type_list<ack_open, ack_batch, drop, forced_drop>

Lists all possible options for the payload.

Member Data Documentation

sender

actor_addr caf::upstream_msg::sender

Address of the sender.

Identifies the up- or downstream actor sending this message. Note that abort messages can get send after sender already terminated. Hence, current_sender() can be nullptr, because no strong pointers can be formed any more and receiver would receive an anonymous message.

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The documentation for this struct was generated from the following file:

• /build/actor-framework-Z9pIPl/actor-framework-0.17.6/libcaf_core/caf/upstream_msg.hpp