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coroutine_dispatchers.md: Add information about no write intent lock on Dispatchers.EDT since 2024.3

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Karol Lewandowski 2024-09-20 13:57:05 +02:00
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topics/basics/architectural_overview/coroutines/coroutine_dispatchers.md
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@ -67,6 +67,14 @@ In the IntelliJ Platform, the EDT dispatcher is also installed as `Dispatchers.M
Use `Dispatchers.Main` only if the coroutine is IntelliJ Platform-context agnostic (e.g., when it can be executed outside the IntelliJ Platform context).
Use `Dispatchers.EDT` when in doubt.
### EDT Dispatcher and Write Intent Lock
As explained in the [](threading_model.md#locks-and-edt) section, write intent lock is acquired on EDT implicitly.
This behavior has changed in coroutine context in version 2024.3.
Since 2024.3, write intent lock is not acquired implicitly in coroutines called on the EDT dispatcher.
Coroutines must use [`readAction`/`writeAction`/`writeIntentReadAction`](%gh-ic%/platform/core-api/src/com/intellij/openapi/application/coroutines.kt) API to acquire a required lock explicitly.
## Dispatchers vs. Threads
The dispatcher concept is a higher level of abstraction over threads.