Mis on peamine idee ja milliseid probleeme aitab lahendada struktureeritud konkurentsi kontseptsioon?

Structured concurrency aims to simplify the management of parallel tasks and prevent errors related to asynchronous code.

The main idea is that all generated asynchronous tasks should have a clearly defined lifecycle, limited by scope. This means tasks are started and finished within a specific code block, and the parent task does not finish until all child tasks are completed.

This helps to:

• Avoid "hanging" or "lost" tasks that continue to run after leaving the scope.
• Provide more predictable behavior and simplify error handling.
• Improve code readability and maintainability, as the structure of parallelism becomes explicit.

For example, in Swift, using Swift Concurrency (async/await), structured concurrency is implemented through async let and TaskGroup, where all child tasks are controlled by the parent task.