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Elixir's process management and the $callers and $ancestors features
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Source: youtube.com
Isaac Yonemoto dives into some lesser-known features of Elixir, particularly focusing on the $callers and $ancestors mechanisms and how they interact with tasks and other processes. These features provide a way for processes to keep track of their executing environment in relation to other processes, impacting how tasks are managed and linked to each other. Yonemoto suggests that by understanding and using $callers and $ancestors, you can improve process management, efficiently handle async tests using the Ecto sandbox for database interactions, and avoid race conditions and unexpected errors in testing scenarios. Additionally, he explores the potential of these features beyond testing, hinting at applications in dynamic repo assignment and access control mechanisms. The talk was code-heavy but aimed at providing insights into Elixir's process management capabilities and the functionality added as of Elixir 1.8, which may add robustness to Elixir applications.
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