How to avoid cross violations in the Ruby extension?

Question

I am writing a C extension providing an interface between Ruby and an asynchronous I / O library. When I run tests on my code, I often get errors, including (but not limited to):

[BUG] cross-thread violation in rb_thread_schedule()

Asynchronous IO means that the C extension will have to deliver ruby ​​messages from multiple threads (rather than the main interpreter thread). How to avoid these thread safety violations in the process?

Answer 1

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• IPC, select().
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. rb_io_sysread() ( IO#sysread) , , , - ruby.