Aggregate Quality of Service policy for a VLink communication endpoint. More...

#include <qos.h>

Collaboration diagram for vlink::Qos:

Classes
struct	Reliability
	Controls whether message delivery is guaranteed. More...
struct	History
	Controls how many samples are kept for late-joining subscribers. More...
struct	Durability
	Controls how samples persist after they are published. More...
struct	PublishMode
	Controls whether the DataWriter sends synchronously or asynchronously. More...
struct	Liveliness
	Controls how the liveness of a DataWriter is asserted and detected. More...
struct	DestinationOrder
	Controls the ordering of received samples. More...
struct	Ownership
	Controls whether multiple writers can write to the same instance. More...
struct	Deadline
	Specifies the maximum period between successive data publications. More...
struct	Lifespan
	Specifies the maximum age of a sample before it is discarded. More...
struct	LatencyBudget
	Provides a hint about the maximum acceptable end-to-end latency. More...
struct	ResourceLimits
	Limits on the number of samples, instances, and samples per instance. More...
struct	Additions
	VLink-specific extensions beyond standard DDS QoS. More...

Public Attributes
char	name [20] = {0}
	Profile name (max 19 chars + NUL). For display only.
bool	valid {false}
	Must be true for the Qos to be applied by the transport.
Reliability	reliability
	Delivery guarantee policy.
History	history
	Sample retention policy.
Durability	durability
	Sample persistence policy.
PublishMode	publish_mode
	Synchronous or asynchronous publishing.
Liveliness	liveliness
	Liveliness assertion policy.
DestinationOrder	destination_order
	Sample ordering policy.
Ownership	ownership
	Writer ownership policy.
Deadline	deadline
	Maximum period between publications.
Lifespan	lifespan
	Maximum sample age before discard.
LatencyBudget	latency_budget
	Acceptable end-to-end latency hint.
ResourceLimits	resource_limits
	Internal queue size limits.
Additions	additions
	VLink-specific extensions.

Detailed Description

Aggregate Quality of Service policy for a VLink communication endpoint.

All sub-policies have sensible defaults. Only the fields relevant to the active transport backend are used; unsupported fields are silently ignored.

The name field (max 19 chars) identifies the profile for display purposes. The valid flag must be true for the Qos to be applied; QosProfile constants already set valid = true.

Member Data Documentation

◆ additions

Additions vlink::Qos::additions

VLink-specific extensions.

◆ deadline

Deadline vlink::Qos::deadline

Maximum period between publications.

◆ destination_order

DestinationOrder vlink::Qos::destination_order

Sample ordering policy.

◆ durability

Durability vlink::Qos::durability

Sample persistence policy.

◆ history

History vlink::Qos::history

Sample retention policy.

◆ latency_budget

LatencyBudget vlink::Qos::latency_budget

Acceptable end-to-end latency hint.

◆ lifespan

Lifespan vlink::Qos::lifespan

Maximum sample age before discard.

◆ liveliness

Liveliness vlink::Qos::liveliness

Liveliness assertion policy.

◆ name

char vlink::Qos::name[20] = {0}

Profile name (max 19 chars + NUL). For display only.

◆ ownership

Ownership vlink::Qos::ownership

Writer ownership policy.

◆ publish_mode

PublishMode vlink::Qos::publish_mode

Synchronous or asynchronous publishing.

◆ reliability

Reliability vlink::Qos::reliability

Delivery guarantee policy.

◆ resource_limits

ResourceLimits vlink::Qos::resource_limits

Internal queue size limits.

◆ valid

bool vlink::Qos::valid {false}

Must be true for the Qos to be applied by the transport.

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

include/vlink/extension/qos.h

Classes

Public Attributes