Reference Clock Service Plugin

Table of Contents

• Reference Clock Service
  • Clock Concept

Introduction

The Clock Service is a Service to provide system wide reference clocks.

Reference Clock Service

Plugin Information

Plugin Filename	adtf_clock.adtfplugin
Plugin Description	adtf_clock.plugindescription
Plugin Name	Reference Clock Service Plugin
License	ADTF
Support Mail	support@digitalwerk.net
Homepage URL	support.digitalwerk.net

Plugin Versions

Plugin Version	3.99.99
Plugin File Version	1.0
adtf	3.99.99
adtf::ucom	3.1.0

Component Information

Name	Reference Clock Service
CID	reference_clock.service.adtf.cid
Description	Use this System Service to extend the ADTF System with a system wide reference clock.
Type	Service
Default Runlevel	system

Properties

Name	Value	Type	Description	Subproperties
control_simulation_clocks	false	tBool	If enabled, then the current simulation clock used as stream clock, will be started and stopped upon runlevel changes.
default_sync2ref_method	adtf_default	cString	Synchronization algorithm used mapping non-system timestamps (e.g. from remote devices) to ADTF Streamtime for Sample timestamps.	Extendable Value List: adtf_default = adtf_default
local_time_strings	true	tBool	If enabled timestamp strings will be interpreted/generated with respect to the local timezone.
simulation_clock/end		cString	The stop time of the simulation clock as a UTC timestamp (i.e. '1970-01-01T00:00:00'). This is only used when 'control_simulation_clocks' is activated.
simulation_clock/speed	1.000000	tFloat64	The speed at which the simulation clock advances relative to the wall clock. A value of zero indicates maximum speed. This is only used when 'control_simulation_clocks' is activated.
simulation_clock/start	1970-01-01T00:00:00	cString	The start time of the simulation clock as a UTC timestamp (i.e. '1970-01-01T00:00:00'). When empty, the clock is not reset. This is only used when 'control_simulation_clocks' is activated.
simulation_clock/system_clock	false	tBool	Whether or not the simulation clock should advertise itself as system clock or not. This is only used when 'control_simulation_clocks' is activated.
simulation_clock/try_realtime_simulation	true	tBool	If this property is true, the hardware clock of the host will be used to determine when the time should advance. Otherwise the clock will simply sleep for the time difference between the time barriers. This is usefull when using a debugger. This is only used when 'control_simulation_clocks' is activated.
stream_clock	system	cString	Registered clock which will be used to provide the ADTF Streamtime.	Extendable Value List: adtf_stream = adtf_stream system = system discrete_simulation = discrete_simulation continuous_simulation = continuous_simulation
time_guard_compatibility_mode	0	tUInt32	Compatibility mode for stream clocks that do not support time guards	Value List: continuous clock = 0 discrete clock = 1
time_stamp_epoch	1970-01-01T00:00:00	cString	The epoch used for converting timestamps.

Provided Interfaces

IID
reference_clock.ant.streaming.adtf.iid
reference_clock.flash.streaming.adtf.iid
reference_clock.giant.streaming.adtf.iid
reference_clock.osborn.streaming.adtf.iid
reference_clock.penguin.streaming.adtf.iid
reference_clock.riddler.streaming.adtf.iid

Clock Concept

Please have a look at Clock Concept.