Examples with LatencyContributorConnection org.osate.analysis.flows.model.LatencyContributorConnection used on opensource projects

Example 1 with LatencyContributorConnection

use of org.osate.analysis.flows.model.LatencyContributorConnection in project osate2 by osate.

the class FlowLatencyAnalysisSwitch method mapConnectionInstance.

private void mapConnectionInstance(final EndToEndFlowInstance etef, final FlowElementInstance flowElementInstance, LatencyReportEntry entry) {
    ConnectionInstance connectionInstance = (ConnectionInstance) flowElementInstance;
    final RealRange expected = PropertyUtils.getScaledRange(org.osate.aadl2.contrib.communication.CommunicationProperties::getLatency, flowElementInstance, TimeUnits.MS).orElse(RealRange.ZEROED);
    ComponentInstance componentInstanceSource = InstanceModelUtil.getRelatedComponentSource(connectionInstance);
    ComponentInstance componentInstanceDestination = InstanceModelUtil.getRelatedComponentDestination(connectionInstance);
    ComponentInstance srcHW = InstanceModelUtil.getHardwareComponent(componentInstanceSource);
    ComponentInstance dstHW = InstanceModelUtil.getHardwareComponent(componentInstanceDestination);
    ComponentInstance srcPartition = FlowLatencyUtil.getPartition(componentInstanceSource);
    ComponentInstance dstPartition = FlowLatencyUtil.getPartition(componentInstanceDestination);
    // if we exit a partition then we may have I/O Delay until the end of the partition window or the end of the major frame
    if (srcPartition != null && srcPartition != dstPartition) {
        double partitionLatency = FlowLatencyUtil.getPartitionPeriod(srcPartition);
        List<ScheduleWindow> schedule = FlowLatencyUtil.getModuleSchedule(srcPartition);
        double partitionDuration = FlowLatencyUtil.getPartitionDuration(srcPartition, schedule);
        if (partitionDuration > 0) {
            LatencyContributor ioLatencyContributor = new LatencyContributorComponent(srcPartition, flowElementInstance, report.isMajorFrameDelay());
            if (!FlowLatencyUtil.isInSchedule(srcPartition, schedule)) {
                ioLatencyContributor.reportWarning("Partition not found in ARINC653 schedule of processor " + FlowLatencyUtil.getModule(srcPartition).getName());
            }
            ioLatencyContributor.setWorstCaseMethod(LatencyContributorMethod.PARTITION_OUTPUT);
            ioLatencyContributor.setBestCaseMethod(LatencyContributorMethod.PARTITION_OUTPUT);
            if (partitionLatency == 0) {
                ioLatencyContributor.setSamplingPeriod(partitionDuration);
                ioLatencyContributor.reportInfo("No partition period/rate. Using partition duration");
            } else {
                ioLatencyContributor.setSamplingPeriod(partitionLatency);
            }
            double frameOffset = FlowLatencyUtil.getPartitionFrameOffset(srcPartition, schedule);
            ioLatencyContributor.setPartitionOffset(frameOffset);
            ioLatencyContributor.setPartitionDuration(partitionDuration);
            entry.addContributor(ioLatencyContributor);
        }
    }
    // now we deal with communication latency
    LatencyContributor latencyContributor = new LatencyContributorConnection(connectionInstance, report.isMajorFrameDelay());
    processActualConnectionBindingsSampling(connectionInstance, latencyContributor);
    ComponentClassifier relatedConnectionData = (ComponentClassifier) FlowLatencyUtil.getConnectionData(connectionInstance);
    processActualConnectionBindingsTransmission(connectionInstance, relatedConnectionData == null ? 0.0 : AadlContribUtils.getDataSize(relatedConnectionData, SizeUnits.BYTES), latencyContributor);
    if (expected.getMaximum() > 0) {
        latencyContributor.setWorstCaseMethod(LatencyContributorMethod.SPECIFIED);
        latencyContributor.setExpectedMaximum(expected.getMaximum());
    }
    if (expected.getMinimum() > 0) {
        latencyContributor.setBestCaseMethod(LatencyContributorMethod.SPECIFIED);
        latencyContributor.setExpectedMinimum(expected.getMinimum());
    }
    if (latencyContributor.getSubContributors().isEmpty()) {
        if (expected.getMaximum() > 0) {
            latencyContributor.setMaximum(expected.getMaximum());
        }
        if (expected.getMinimum() > 0) {
            latencyContributor.setMinimum(expected.getMinimum());
        }
    } else {
        latencyContributor.reportInfo("Adding latency subtotal from protocols and hardware - shown with ()");
    }
    // set synchronous if on same processor
    if (srcHW != null && dstHW != null) {
        // we have two hardware components. One or both could be a device
        ComponentInstance srcTime = (ComponentInstance) TimingProperties.getReferenceTime(srcHW).orElse(null);
        ComponentInstance dstTime = (ComponentInstance) TimingProperties.getReferenceTime(dstHW).orElse(null);
        if (srcHW == dstHW) {
            latencyContributor.setSynchronous();
        } else if (srcTime != null && dstTime != null) {
            if (srcTime == dstTime) {
                latencyContributor.setSynchronous();
            } else {
                latencyContributor.setAsynchronous();
            }
        } else {
            latencyContributor.setSyncUnknown();
        }
    } else {
        // set synchronous if in same partition. This may be the case if the partitions are not bound yet to a processor
        if (dstPartition != null && srcPartition != null) {
            if (srcPartition == dstPartition) {
                latencyContributor.setSynchronous();
            } else {
                // no else part: partitions are unbound so we want to have both a sync and async analysis
                latencyContributor.setSyncUnknown();
            }
        }
    }
    entry.addContributor(latencyContributor);
    if (dstPartition != null && srcPartition != dstPartition) {
        // add partition latency if the destination is a partition and it is different from the source partition (or null)
        double partitionLatency = FlowLatencyUtil.getPartitionPeriod(dstPartition);
        List<ScheduleWindow> schedule = FlowLatencyUtil.getModuleSchedule(dstPartition);
        double partitionDuration = FlowLatencyUtil.getPartitionDuration(dstPartition, schedule);
        LatencyContributorComponent platencyContributor = new LatencyContributorComponent(dstPartition, flowElementInstance, report.isMajorFrameDelay());
        if (!FlowLatencyUtil.isInSchedule(dstPartition, schedule)) {
            platencyContributor.reportWarning("Partition not found in ARINC653 schedule of processor " + FlowLatencyUtil.getModule(dstPartition).getName());
        }
        if (partitionDuration > 0) {
            double frameOffset = FlowLatencyUtil.getPartitionFrameOffset(dstPartition, schedule);
            platencyContributor.setPartitionOffset(frameOffset);
            if (partitionLatency == 0) {
                platencyContributor.setSamplingPeriod(partitionDuration);
                platencyContributor.reportInfo("No partition period. Using partition duration");
            } else {
                platencyContributor.setSamplingPeriod(partitionLatency);
            }
            platencyContributor.setPartitionDuration(partitionDuration);
            platencyContributor.setWorstCaseMethod(LatencyContributorMethod.PARTITION_SCHEDULE);
            platencyContributor.setBestCaseMethod(LatencyContributorMethod.PARTITION_SCHEDULE);
            entry.addContributor(platencyContributor);
        } else {
            platencyContributor.setSamplingPeriod(partitionLatency);
            platencyContributor.setWorstCaseMethod(LatencyContributorMethod.PARTITION_FRAME);
            platencyContributor.setBestCaseMethod(LatencyContributorMethod.PARTITION_FRAME);
            entry.addContributor(platencyContributor);
        }
    }
}