| [1] | 1 | author: Gerald Dherbomez
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| 2 | copyright: Heudiasyc UMR UTC/CNRS 7253
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| 3 |
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| 4 | Exercise 2: Managing the communication of components together
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| 5 | -------------------------------------------------------------
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| 6 |
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| 7 |
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| 8 | Exercise 2.1: communication between components
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| 9 | ----------------------------------------------
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| 10 |
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| 11 | In this exercise we will develop a new component with one input and one output. The component should add a specific number defined as a parameter to the input value and provide the result as output. Before sending the result on the output it must wait for 1 second. The component will print to the terminal the result of the addition too.
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| 12 |
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| 13 | Write the code of this component in a new plugin but use the same pacpus project as the exercise 1. Build and install the plugin in the PACPUS_ROOT/bin folder and execute the plugin with the PacpusSensor application.
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| 14 |
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| 15 | Indication:
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| 16 | - Now, the tree of your project may be something like that:
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| 17 |
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| 18 | pacpustutorials
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| 19 | |
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| 20 | |--> exercises
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| 21 | |
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| 22 | |--> exercise_1
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| 23 | |
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| 24 | |--> CMakeLists.txt
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| 25 | |--> MessageComponent.h
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| 26 | |--> MessageComponent.cpp
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| 27 | |
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| 28 | |--> exercise_2
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| 29 | |
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| 30 | |--> CMakeLists.txt
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| 31 | |--> AdditionComponent.h
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| 32 | |--> AdditionComponent.cpp
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| 33 | |
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| 34 | |--> build
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| 35 | |
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| 36 | |--> build_linux.sh
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| 37 | |
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| 38 | |--> CMakeLists.txt
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| 39 |
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| 40 |
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| 41 |
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| 42 | Exercise 2.2: communication of variable size data
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| 43 | -----------------------------------------------
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| 44 | Create a new component in the same plugin as the previous one (exercise 2.1). It will have the same functionnality with the difference that it can do an addition on a vector of input values.
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| 45 |
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| 46 | Build, install and run this new component.
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| 47 |
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| 48 | Indication :
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| 49 | - you can use the QVector class as input/output type.
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| 50 |
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| 51 |
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| 52 |
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| 53 | Exercise 2.3: Threaded component
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| 54 | --------------------------------
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| 55 | From the component written in exercise 2.2 create a new component with the same interface. The addition must be done in a separate thread.
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| 56 |
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| 57 | Build, install and run this new component.
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| 58 |
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| 59 | Indication :
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| 60 | - Your component must inherit from the QThread class.
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| 61 | - Take care of the protection of the data to guarantee a thread safe execution.
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| 62 |
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| 63 |
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| 64 |
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