Main Content

decreaseExecutionOrder

Change function execution order to earlier

    Description

    example

    decreaseExecutionOrder(functionObj) decreases execution order of the specified function functionObj by 1. If the function is at the minimum execution order, the decreaseExecutionOrder method will fail with a warning.

    Examples

    collapse all

    This example shows the software architecture of a throttle position control system and how to schedule the execution order of the root level functions.

    model = systemcomposer.openModel('ThrottleControlComposition');

    Simulate the model to populate it with functions.

    sim('ThrottleControlComposition');

    View the function names ordered by execution order.

    functions = {model.Architecture.Functions.Name}'
    functions = 6x1 cell
        {'Actuator_output_5ms'   }
        {'Controller_run_5ms'    }
        {'TPS_Primary_read_5ms'  }
        {'TPS_Secondary_read_5ms'}
        {'TP_Monitor_D1'         }
        {'APP_Sensor_read_10ms'  }
    
    

    Decrease the execution order of the third function.

    decreaseExecutionOrder(model.Architecture.Functions(3))

    View the function names ordered by execution order.

    functions = {model.Architecture.Functions.Name}'
    functions = 6x1 cell
        {'Actuator_output_5ms'   }
        {'TPS_Primary_read_5ms'  }
        {'Controller_run_5ms'    }
        {'TPS_Secondary_read_5ms'}
        {'TP_Monitor_D1'         }
        {'APP_Sensor_read_10ms'  }
    
    

    The third function is now moved up in execution order, executing earlier.

    Increase the execution order of the second function.

    increaseExecutionOrder(model.Architecture.Functions(2))

    View the function names ordered by execution order.

    functions = {model.Architecture.Functions.Name}'
    functions = 6x1 cell
        {'Actuator_output_5ms'   }
        {'Controller_run_5ms'    }
        {'TPS_Primary_read_5ms'  }
        {'TPS_Secondary_read_5ms'}
        {'TP_Monitor_D1'         }
        {'APP_Sensor_read_10ms'  }
    
    

    The second function is now moved down in execution order, executing later.

    Input Arguments

    collapse all

    Function, specified as a systemcomposer.arch.Function object.

    More About

    collapse all

    Definitions

    TermDefinitionApplicationMore Information
    software architecture

    A software architecture is a specialization of an architecture for software-based systems, including the description of software compositions, component functions, and their scheduling

    Use software architectures in System Composer™ to author software architecture models composed of software components, ports, and interfaces. Design your software architecture model, define the execution order of your component functions, simulate your design in the architecture level, and generate code.
    software componentA software component is a specialization of a component for software entities, including its functions (entry points) and interfaces.Implement a Simulink® export-function, rate-based, or JMAAB model as a software component, simulate the software architecture model, and generate code.
    software compositionA software composition is a diagram of software components and connectors that represents a composite software entity, such as a module or application.Encapsulate functionality by aggregating or nesting multiple software components or compositions.Modeling the Software Architecture of a Throttle Position Control System
    class diagramA class diagram is a graphical representation of a static structural model that displays unique architecture types of the software components optionally with software methods and properties.Class diagrams capture one instance of each referenced model and show relationships between them. Any component diagram view can be optionally represented as a class diagram for a software architecture model.Class Diagram View of Software Architectures

    Introduced in R2021b