async_task

Overview

This example shows how an asynchronous task runs within a Raya application. It showcases the process of task creation, execution, monitoring, and retrieval of task results before application termination.

Execution

To execute the example, use the following command:

python3 async_task/ --auto-run

This will automatically launch the application and start executing the asynchronous task.

Behavior

  • The application starts and initializes necessary parameters.

  • In the first execution cycle, an asynchronous task is created and starts running in the background.

  • The main loop logs messages at regular intervals while monitoring the background task.

  • The task logs messages periodically and completes execution after a defined number of iterations.

  • Once the task is finished, the application retrieves the task’s result and terminates.

Inputs

No user input is required; execution is automated.

Outputs

  • Log messages indicating the execution status of both the main loop and the asynchronous task.

  • A final log confirming that the task has finished execution and the application has terminated.

Example Output

During execution, the output logs follow this pattern:

[INFO] [timestamp] [pyraya.async_task]: Auto running the app
[INFO] [timestamp] [pyraya.async_task]: Task 1 created
[INFO] [timestamp] [pyraya.async_task]: Hello from loop: 0
[WARNING] [timestamp] [pyraya.async_task]: Hello from task: argument 0
...
[INFO] [timestamp] [pyraya.async_task]: Task 1 finished
[INFO] [timestamp] [pyraya.async_task]: App finished

Key Notes

  • The application continuously monitors the task’s status before proceeding with termination.

  • The execution flow ensures that asynchronous processing does not interfere with the main loop.

  • Proper task cleanup and retrieval mechanisms are in place before application shutdown.