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v0.3

API changes:

  • Net.accept_sub is deprecated in favour of accept_fork (@talex5 #240).
    Fiber.fork_on_accept, which it used internally, has been removed.

  • Allow short writes in Read_source_buffer (@talex5 #239).
    The reader is no longer required to consume all the data in one go. Also, add Linux_eio.Low_level.writev_single to expose this behaviour directly.

  • Eio.Unix_perm is now Eio.Dir.Unix_perm.

New features:

  • Add Eio.Mutex (@TheLortex @talex5 #223).

  • Add Eio.Buf_write (@talex5 #235).
    This is a buffered writer for Eio sinks, based on Faraday.

  • Add Eio_mock library for testing (@talex5 #228).
    At the moment it has mock flows and networks.

  • Add Eio_mock.Backend (@talex5 #237 #238).
    Allows running tests without needing a dependency on eio_main. Also, as it is single-threaded, it can detect deadlocks in test code instead of just hanging.

  • Add Buf_read.{of_buffer, of_string, parse_string{,_exn}, return} (@talex5 #225).

  • Add <*> combinator to Buf_read.Syntax (@talex5 #227).

  • Add Eio.Dir.read_dir (@patricoferris @talex5 #207 #218 #219)

Performance:

  • Add Buf_read benchmark and optimise it a bit (@talex5 #230).

  • Inline Buf_read.consume to improve performance (@talex5 #232).

Bug fixes / minor changes:

  • Allow IO to happen even if a fiber keeps yielding (@TheLortex @talex5 #213).

  • Fallback for traceln without an effect handler (@talex5 #226).
    traceln now works outside of an event loop too.

  • Check for cancellation when creating a non-protected child context (@talex5 #222).

  • eio_linux: handle EINTR when calling getrandom (@bikallem #212).

  • Update to cmdliner.1.1.0 (@talex5 #190).

v0.2

  • Add support for UDP (@patricoferris #171).

  • Rename Fibre to Fiber (@talex5 #195). This is to match the compiler's spelling.

  • Switch to luv backend if uring can't be used (@talex5 #203). Useful on Windows with WSL, and also in Docker containers on older systems.

  • Eio_linux: cope with lack of fixed chunks (@talex5 #200).

    • If we run out of fixed memory, just use regular memory instead of waiting (which might deadlock).
    • If we try to allocate a fixed buffer and fail, we now just log a warning and continue without one.

  • Add support for FD passing with Eio_linux (@talex5 #199).

  • Add Eio_unix.FD.as_socket (@talex5 #193). Useful for working with existing libraries that provide a Unix.file_descr, or for receiving FDs from elsewhere (e.g. socket activation). Also, the Luv.{File,Handle}.of_luv functions now allow controlling whether to close the wrapped FD.

  • Add Eio_unix.sleep (@talex5 #188). Based on feedback that some people don't want to treat time as a capability. Possibly also useful for debugging race conditions.

  • Tidy up forking API (@talex5 #192). Moves some common code out the the individual backends.

  • Improve documentation (@talex5 #197 #194 #186 #185). In particular, explain more low-level details about how cancellation works.

  • Add an example Eio_null backend (@talex5 #189). This supports creating fibers, promises and cancellation, but provides no IO operations.

  • Effect.eff is now Effect.t in OCaml trunk (@talex5 #201).

v0.1

  • Initial release.