Crate zerodds_qos 

Crate zerodds-qos. Safety classification: SAFE.

DDS QoS-Policies (DDS 1.4 §2.2.3) + Request/Offered-Compatibility-Matrix

• PL_CDR_LE PID-Wire-Codec (DDSI-RTPS §9.6.3.2). Pure-Rust no_std + alloc.

Spec

• DDS 1.4 §2.2.3 — alle 22 Standard-Policies (Durability, Reliability, Liveliness, Ownership, Partition, …) inkl. §2.2.3.23 Exclusive-Ownership-Resolver-Logik (§2.2.2.5.5).
• DDS 1.4 §2.2.3 Table “QoS compatibility” — Request/Offered-Matrix (check_compatibility).
• DDSI-RTPS 2.5 §9.6.3.2 — Wire-PIDs fuer ParameterList-Encoding (Pid).

Schichten-Position

Layer 1 — Primitives. Direkte Abhaengige: zerodds-rtps, zerodds-discovery, zerodds-dcps, zerodds-dcps-async, zerodds-c-api, zerodds-rpc, zerodds-security-runtime, zerodds-xml, zerodds-zenoh-bridge.

Public API (Stand 1.0.0-rc.1)

Top-Level:

• Duration — DDS-Duration (sec + nanosec) fuer alle zeitbasierten Policies.
• Pid — DDSI-RTPS §9.6.3.2 PID-Konstanten fuer QoS-Policy-Wire-Encoding.
• CompatibilityResult / IncompatibleReason / check_compatibility — Request/Offered-Matrix.

Policies-Modul (policies):

• 22 Standard-Policies: DurabilityQosPolicy, DurabilityServiceQosPolicy, DeadlineQosPolicy, LatencyBudgetQosPolicy, LivelinessQosPolicy, ReliabilityQosPolicy, DestinationOrderQosPolicy, HistoryQosPolicy, ResourceLimitsQosPolicy, TransportPriorityQosPolicy, LifespanQosPolicy, UserDataQosPolicy, OwnershipQosPolicy, OwnershipStrengthQosPolicy, PresentationQosPolicy, PartitionQosPolicy, TopicDataQosPolicy, GroupDataQosPolicy, TimeBasedFilterQosPolicy, ReaderDataLifecycleQosPolicy, WriterDataLifecycleQosPolicy, EntityFactoryQosPolicy.
• QoS-Aggregate: ReaderQos, WriterQos.
• Kind-Enums: DurabilityKind, ReliabilityKind, LivelinessKind, OwnershipKind, HistoryKind, DestinationOrderKind, PresentationAccessScope.

Exclusive-Ownership-Resolver (exclusive_ownership):

• exclusive_ownership::OwnershipResolver / exclusive_ownership::OwnershipCandidate / exclusive_ownership::resolve_strongest — DDS 1.4 §2.2.3.23 Strongest-Writer-Selection fuer DataReader.take() bei Topics mit Exclusive-Ownership-QoS.

Beispiel

use zerodds_qos::{
    ReliabilityKind, ReliabilityQosPolicy, ReaderQos, WriterQos,
    check_compatibility, CompatibilityResult,
};

let mut writer_qos = WriterQos::default();
writer_qos.reliability = ReliabilityQosPolicy { kind: ReliabilityKind::Reliable, ..Default::default() };
let reader_qos = ReaderQos::default();
// Reliable writer + BestEffort reader (default) sind kompatibel.
assert!(matches!(check_compatibility(&writer_qos, &reader_qos), CompatibilityResult::Compatible));

Re-exports

pub use compatibility::CompatibilityResult;

pub use compatibility::IncompatibleReason;

pub use duration::Duration;

pub use pid::Pid;

pub use policies::DeadlineQosPolicy;

pub use policies::DestinationOrderKind;

pub use policies::DestinationOrderQosPolicy;

pub use policies::DurabilityKind;

pub use policies::DurabilityQosPolicy;

pub use policies::DurabilityServiceQosPolicy;

pub use policies::EntityFactoryQosPolicy;

pub use policies::GroupDataQosPolicy;

pub use policies::HistoryKind;

pub use policies::HistoryQosPolicy;

pub use policies::LatencyBudgetQosPolicy;

pub use policies::LifespanQosPolicy;

pub use policies::LivelinessKind;

pub use policies::LivelinessQosPolicy;

pub use policies::OwnershipKind;

pub use policies::OwnershipQosPolicy;

pub use policies::OwnershipStrengthQosPolicy;

pub use policies::PartitionQosPolicy;

pub use policies::PresentationAccessScope;

pub use policies::PresentationQosPolicy;

pub use policies::ReaderDataLifecycleQosPolicy;

pub use policies::ReaderQos;

pub use policies::ReliabilityKind;

pub use policies::ReliabilityQosPolicy;

pub use policies::ResourceLimitsQosPolicy;

pub use policies::TimeBasedFilterQosPolicy;

pub use policies::TopicDataQosPolicy;

pub use policies::TransportPriorityQosPolicy;

pub use policies::UserDataQosPolicy;

pub use policies::WriterDataLifecycleQosPolicy;

pub use policies::WriterQos;

pub use policies::check_compatibility;

Modules

compatibility

Request/Offered QoS-Compatibility (DDS 1.4 §2.2.3).

duration

DDS Duration_t (DDSI-RTPS §9.3.2) — i32 seconds + u32 fraction.

exclusive_ownership

Exclusive-Ownership-Resolution (DDS 1.4 §2.2.3.23 / §2.2.2.5.5).

pid

PID-Constants fuer QoS-Policies (DDSI-RTPS §9.6.3.2).

policies

DDS QoS-Policies (DDS 1.4 §2.2.3).