status_detail.h File Reference

Concrete DDS-compatible status event structs with counter and handle fields. More...

#include <cstdint>
#include <string>
#include "./status.h"

Include dependency graph for status_detail.h:

Go to the source code of this file.

Classes
struct	vlink::Status::PublicationMatched
	Status event fired when a DataWriter gains or loses a matching DataReader. More...
struct	vlink::Status::OfferedDeadlineMissed
	Status event fired when a DataWriter fails to publish within its offered deadline period. More...
struct	vlink::Status::OfferedIncompatibleQos
	Status event fired when a DataWriter discovers a subscriber with incompatible QoS. More...
struct	vlink::Status::LivelinessLost
	Status event fired when a DataWriter loses liveliness (failed to assert within duration). More...
struct	vlink::Status::SubscriptionMatched
	Status event fired when a DataReader gains or loses a matching DataWriter. More...
struct	vlink::Status::RequestedDeadlineMissed
	Status event fired when a DataReader does not receive data within its requested deadline. More...
struct	vlink::Status::LivelinessChanged
	Status event fired when the liveliness state of a matched DataWriter changes. More...
struct	vlink::Status::SampleRejected
	Status event fired when an incoming sample is rejected due to a resource limit. More...
struct	vlink::Status::RequestedIncompatibleQos
	Status event fired when a DataReader discovers a publisher with incompatible QoS. More...
struct	vlink::Status::SampleLost
	Status event fired when a sample is lost before it can be delivered to the DataReader. More...

Namespaces
namespace	vlink
namespace	vlink::Status
	DDS-compatible status type enumeration, base class, and type-safe cast utilities.

Detailed Description

Concrete DDS-compatible status event structs with counter and handle fields.

This file defines the ten concrete status structs derived from Status::Base. Each struct carries the specific counter and handle fields reported by the DDS middleware for that event type.

Writer-side (Publisher / Server / Setter):

• PublicationMatched – matched subscriber count changed
• OfferedDeadlineMissed – writer missed its offered publication deadline
• OfferedIncompatibleQos – incompatible QoS subscriber detected
• LivelinessLost – writer failed to assert liveliness

Reader-side (Subscriber / Client / Getter):

• SubscriptionMatched – matched publisher count changed
• RequestedDeadlineMissed – reader did not receive within its requested deadline
• LivelinessChanged – publisher liveliness state changed
• SampleRejected – sample dropped due to resource limit
• RequestedIncompatibleQos – incompatible QoS publisher detected
• SampleLost – sample lost before delivery

Accessing status fields

sub->register_status_callback([](vlink::Status::BasePtr status) {
    if (status->get_type() == vlink::Status::kSampleRejected) {
        auto rej = status->as<vlink::Status::SampleRejected>();
        if (rej->last_reason == vlink::Status::SampleRejected::kRejectedBySamplesLimit) {
            VLOG_W("Sample rejected: limit exceeded");
        }
    }
});