Time Sync Client

Time Sync Client		status: draft security: NO safety: QM
tags: ts_client, ts_client version: 1 realizes: wp__cmpt_request
doc__ts_client		Generic Document

Time Sync Client		status: valid security: NO safety: ASIL_B
tags: ts_client version: 1 belongs to: feat__time satisfies: comp_req__ts_client__shared_memory_mgmt, comp_req__ts_client__shm_validation, comp_req__ts_client__publisher_creates, comp_req__ts_client__receiver_multi_reader, comp_req__ts_client__data_validity, comp_req__ts_client__seqlock_protocol, comp_req__ts_client__sync_status_data, comp_req__ts_client__sync_fup_data, comp_req__ts_client__pdelay_data, comp_req__ts_client__time_correlation_data, comp_req__ts_client__cache_optimization
comp__ts_client		Component

Abstract

This component provides IPC mechanisms for time synchronization data exchange between time daemons and client applications within an ECU.

Specification

The component provides shared memory-based IPC for distributing time synchronization data with thread-safe, low-latency access:

• Shared Memory Channel Manag... (comp_req__ts_client__shared_memory_mgmt)

• Shared Memory Region Valida... (comp_req__ts_client__shm_validation)

• Publisher Creates Channels (comp_req__ts_client__publisher_creates)

• Receiver Multi-Reader Seman... (comp_req__ts_client__receiver_multi_reader)

• Data Validity Indication (comp_req__ts_client__data_validity)

• Lock-Free Synchronization (comp_req__ts_client__seqlock_protocol)

• gPTP Synchronization Status... (comp_req__ts_client__sync_status_data)

• Sync/FollowUp Message Metad... (comp_req__ts_client__sync_fup_data)

• PDelay Message Metadata Exc... (comp_req__ts_client__pdelay_data)

• Time Correlation Data Exchange (comp_req__ts_client__time_correlation_data)

• Cache-Optimized Memory Layout (comp_req__ts_client__cache_optimization)

Footnotes

Further Documentation of the component can be found in the following sections:

Component Detail Information

• Time Sync Client Detailed Design
• Component Time Sync Client Requirements