Add Eio.Path.read_link #686
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talex5
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Feb 22, 2024
CHANGES: New features: - eio_posix: use directory FDs instead of realpath (@talex5 ocaml-multicore/eio#694 ocaml-multicore/eio#696, reviewed by @SGrondin). Using realpath was an old hack from the libuv days and subject to races. It was also slow. - Keep pool of systhreads for blocking operations (@SGrondin @talex5 ocaml-multicore/eio#681). This is much faster than creating a new thread for each operation. It mainly benefits the eio_posix backend, as that uses lots of systhreads. - Make `Switch.on_release` thread-safe (@talex5 ocaml-multicore/eio#684, requested by @art-w and @clecat). This allows resource pools to be shared between domains easily. - Add `Eio.Path.read_link` (@talex5 ocaml-multicore/eio#686). - Add `Eio_unix.Fd.is_open` (@talex5 ocaml-multicore/eio#690). - Include backtrace in systhread errors (@talex5 ocaml-multicore/eio#688, reviewed by @SGrondin). Also, add `Eio.Exn.empty_backtrace` as a convenience. - eio.mock: add tracing support to mock backend (@talex5 ocaml-multicore/eio#687). - Improve tracing (@talex5 ocaml-multicore/eio#675 ocaml-multicore/eio#683 ocaml-multicore/eio#676, reviewed by @SGrondin). Update tracing section of README and trace more things (`run_in_systhread`, `close`, `submit`, `traceln`, cancellation and domain spawning). Documentation: - Link to verification work in docs (@talex5 ocaml-multicore/eio#682). - Add more trace diagrams to README (@talex5 ocaml-multicore/eio#698). - Adjust COC contacts (@polytypic ocaml-multicore/eio#685, reviewed by @Sudha247). Bug fixes: - eio_linux: retry `openat2` on `EAGAIN` (@talex5 ocaml-multicore/eio#693, reviewed by @SGrondin). - eio_posix and eio_windows: check for IO periodically (@talex5 ocaml-multicore/eio#674). - Handle EPERM when trying to initialise uring (@talex5 ocaml-multicore/eio#691). This can happen when using a Docker container. Build and tests: - Benchmark `Eio_unix.run_in_systhread` (@talex5 ocaml-multicore/eio#678, reviewed by @SGrondin). - Enable lintcstubs for `Eio_unix.Private` too (@talex5 ocaml-multicore/eio#689). - Stat benchmark: report cleanup time and optimise (@talex5 ocaml-multicore/eio#692). - Make benchmarks start faster (@talex5 ocaml-multicore/eio#673). - Update build for new eio-trace CLI (@talex5 ocaml-multicore/eio#699). - Expect opam-repo-ci tests to fail on macos (@talex5 ocaml-multicore/eio#672).
talex5
added a commit
to talex5/opam-repository
that referenced
this pull request
Feb 22, 2024
CHANGES: New features: - eio_posix: use directory FDs instead of realpath (@talex5 ocaml-multicore/eio#694 ocaml-multicore/eio#696, reviewed by @SGrondin). Using realpath was an old hack from the libuv days and subject to races. It was also slow. - Keep pool of systhreads for blocking operations (@SGrondin @talex5 ocaml-multicore/eio#681). This is much faster than creating a new thread for each operation. It mainly benefits the eio_posix backend, as that uses lots of systhreads. - Make `Switch.on_release` thread-safe (@talex5 ocaml-multicore/eio#684, requested by @art-w and @clecat). This allows resource pools to be shared between domains easily. - Add `Eio.Path.read_link` (@talex5 ocaml-multicore/eio#686). - Add `Eio_unix.Fd.is_open` (@talex5 ocaml-multicore/eio#690). - Include backtrace in systhread errors (@talex5 ocaml-multicore/eio#688, reviewed by @SGrondin). Also, add `Eio.Exn.empty_backtrace` as a convenience. - eio.mock: add tracing support to mock backend (@talex5 ocaml-multicore/eio#687). - Improve tracing (@talex5 ocaml-multicore/eio#675 ocaml-multicore/eio#683 ocaml-multicore/eio#676, reviewed by @SGrondin). Update tracing section of README and trace more things (`run_in_systhread`, `close`, `submit`, `traceln`, cancellation and domain spawning). Documentation: - Link to verification work in docs (@talex5 ocaml-multicore/eio#682). - Add more trace diagrams to README (@talex5 ocaml-multicore/eio#698). - Adjust COC contacts (@polytypic ocaml-multicore/eio#685, reviewed by @Sudha247). Bug fixes: - eio_linux: retry `openat2` on `EAGAIN` (@talex5 ocaml-multicore/eio#693, reviewed by @SGrondin). - eio_posix and eio_windows: check for IO periodically (@talex5 ocaml-multicore/eio#674). - Handle EPERM when trying to initialise uring (@talex5 ocaml-multicore/eio#691). This can happen when using a Docker container. Build and tests: - Benchmark `Eio_unix.run_in_systhread` (@talex5 ocaml-multicore/eio#678, reviewed by @SGrondin). - Enable lintcstubs for `Eio_unix.Private` too (@talex5 ocaml-multicore/eio#689). - Stat benchmark: report cleanup time and optimise (@talex5 ocaml-multicore/eio#692). - Make benchmarks start faster (@talex5 ocaml-multicore/eio#673). - Update build for new eio-trace CLI (@talex5 ocaml-multicore/eio#699). - Expect opam-repo-ci tests to fail on macos (@talex5 ocaml-multicore/eio#672).
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Part of #510.
As io_uring doesn't have readlink, I put the C stub in eio_unix to share it.