Context Preservation and Multi-Coroutine Flows
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📝 Description
The topic addresses a restriction within Kotlin coroutines concerning the execution of Flow operations across multiple coroutines, specifically related to Context Preservation. It explains that directly calling `emit()` inside a separate `launch {}` block violates this principle. The discussion details the concept of Context Preservation, its significance in maintaining coroutine state integrity, and the correct procedures necessary for separating the execution contexts of flow emitters and collectors.
Methods for properly structuring flows to operate across different coroutines are presented. A primary technique discussed involves utilizing the `flowOn` operator to effectively alter the context of the upstream flow, ensuring that flow invariants are not violated when dealing with asynchronous operations or multi-threaded execution involving Kotlin Flows.
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