Understanding System Workers in 4D
System Workers are a key element of multitasking in 4D.
This course introduces you to the fundamentals of System Workers, their role in asynchronous task execution, and their use in communicating with external processes.
Through a theoretical part and several practical demonstrations, you will discover :
- how System Workers can be used to delegate processing;
- how to manage callbacks to retrieve results ;
- and how to interact with the system, for example by executing a Shell script directly from 4D.
This short course is ideal for any developer wishing to understand the basics of multitasking and prepare for more advanced integrations into their 4D applications.
Features
- A clear, practical introduction to multitasking in 4D
- Illustrated demonstrations to help you understand how to implement the SystemWorker class
- Practical examples of callbacks and external script execution
- A short, targeted course, ideal for quickly acquiring the basics
Target audiences
- 4D developers wishing to discover asynchronous operation and inter-process communication
- Anyone interested in understanding how 4D interacts with the system via the SystemWorker class
- Developers preparing external calls or system automations in 4D
Requirements
- No special prerequisites
- A basic knowledge of 4D and its development environment is recommended to follow the demonstrations
Curriculum
- 1 Section
- 5 Lessons
- 30 Minutes
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- Discover System Workers in 4DDiscover the logic behind System Workers, the difference between synchronous and asynchronous execution, and how this class allows 4D to interact with the operating system to run tasks in parallel.5
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Understanding System Workers in 4D
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