A safe wrapper for Unix.file_descr.

Eio resources backed by an OS file descriptor.

Extended network API with support for file descriptors.

await_readable fd blocks until fd is readable (or has an error).

await_writable fd blocks until fd is writable (or has an error).

sleep d sleeps for d seconds, allowing other fibers to run. This is can be useful for debugging (e.g. to introduce delays to trigger a race condition) without having to plumb Eio.Stdenv.mono_clock through your code. It can also be used in programs that don't care about tracking determinism.

run_in_systhread fn runs the function fn in a newly created system thread (a Thread.t). This allows blocking calls to be made non-blocking.

pipe sw returns a connected pair of flows src and sink. Data written to sink can be read from src. Note that, like all FDs created by Eio, they are both marked as close-on-exec by default.

Spawning child processes with extra control.

The set of resources provided to a process on a Unix-compatible system.

API for Eio backends only.