org.protelis.vm

Interface TimeAwareDevice

All Superinterfaces:

ExecutionContext

public interface TimeAwareDevice
extends ExecutionContext

A time-aware device.

Method Summary

Modifier and Type	Method and Description
Field	nbrDelay() Time forward view: expected time from the device computation to neighbor's next computation incorporating that information.
Field	nbrLag() Time backward view: how long ago information from neighbors was received.

Methods inherited from interface org.protelis.vm.ExecutionContext

buildField, buildFieldDeferred, commit, getCurrentTime, getDeltaTime, getDeviceUID, getExecutionEnvironment, getVariable, newCallStackFrame, nextRandomDouble, putMultipleVariables, putVariable, restrictDomain, returnFromCallFrame, setAvailableFunctions, setup

Method Detail

nbrDelay

Field nbrDelay()

Time forward view: expected time from the device computation to neighbor's next computation incorporating that information. For device's neighbors: nbrDelay is the best estimate that the underlying system can provide. For the current device: nbrDelay is self.getDeltaTime().

Returns:

field of communication delays

nbrLag

Field nbrLag()

Time backward view: how long ago information from neighbors was received. For device's neighbors: nbrRange is the time of the computation minus the timestamp on the packet. Dropped packets temporarily increase nbrLag. For the current device: nbrRange is self.getDeltaTime().

Returns:

field of communication latencies