package moonpool-lwt
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moonpool-lwt
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package moonpool-lwt
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IO using the Lwt event loop.
These IO operations work on non-blocking file descriptors and rely on a Lwt_engine event loop being active (meaning, Lwt_main.run is currently running in some thread).
Calling these functions must be done from a moonpool runner. A function like read will first try to perform the IO action directly (here, call Unix.read); if the action fails because the FD is not ready, then await_readable is called: it suspends the fiber and subscribes it to Lwt to be awakened when the FD becomes ready.
Perform one write into the file descriptor
Loop around write_once to write the entire slice.