Continuing to research usages of Native AOT on consoles led me to the open source FNA project. FNA is a modern reimplementation of Microsoft’s XNA Game frameworks. XNA was first introduced in the mid 2000s for developers to build games for the Xbox Live Indie Games marketplace using C#. Despite the fact that XNA has been discontinued by Microsoft, it still has many supporters who have continued to release XNA/FNA games over the years. Part of the FNA project involves modern console support which is powered by custom Native AOT ports.
A note on forkingA practical detail that matters is the process that creates child sandboxes must itself be fork-safe. If you are running an async runtime, forking from a multithreaded process is inherently unsafe because child processes inherit locked mutexes and can corrupt state. The solution is a fork server pattern where you fork a single-threaded launcher process before starting the async runtime, then have the async runtime communicate with the launcher over a Unix socket. The launcher creates children, entirely avoiding the multithreaded fork problem.
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Implementations have had to develop their own strategies for dealing with this. Firefox initially used a linked-list approach that led to O(n) memory growth proportional to the consumption rate difference. In Cloudflare Workers, we opted to implement a shared buffer model where backpressure is signaled by the slowest consumer rather than the fastest.
subtotals by document type), and deposited the check in an appropriate sorter