0.8

CHANGES:

New features:

• Add Eio.Net.run_server (@bikallem @talex5 #408).
  Runs an accept loop in one or more domains, with cancellation and graceful shutdown,
  and an optional maximum number of concurrent connections.

• Add Buf_read.BE and LE parsers (@Cjen1 #399).
  Parse numbers in various binary formats.

• Add Eio.Buf_read.uint8 (@talex5 #418).

Performance:

• Make Eio.Condition lock-free (@talex5 #397 #381).
  In addition to being faster, this allows using conditions in signal handlers.

• Make Eio.Semaphore lock-free (@talex5 @polytypic #398).

• Make Eio.Stream lock-free when the capacity is zero (@talex5 #413 #411).

• Make Eio.Promise lock-free (@talex5 #401).

Bug fixes:

• eio_linux: call Uring.submit as needed (@talex5 @bikallem #428).
  Previously, we could fail to submit a job promptly because the SQE queue was full.

• Fix luv signals (@haesbaert #412).
  libuv automatically retries polling if it gets EINTR, without giving OCaml signal handlers a chance to run.

• eio_luv: fix some resource leaks (@talex5 @patricoferris #421).

• eio_luv: fix "unavailable signal" error on Windows (@talex5 #420, reported by @nojb).

• Fix Buf_write.BE.uint48 and LE.uint48 (@adatario #418).

Documentation:

• Add example programs (@talex5 #389).

• Update network examples to use run_server (@talex5 #417).

• Add a warning to the tutorial about Fiber.first (@talex5 #394).

• Clarify the epoch used for Eio.Time.now (@bikallem #395).

• Describe secure_random as an infinite source (@patricoferris #426).

• Update README for OCaml 5 release (@talex5 #384 #391 #393).

Other changes:

• Delay setting SIGPIPE handler until the run function is called (@talex5 #420).

• Remove debug-level logging (@talex5 #403).

• eio-luv: improve process.md test (@smondet #414).

• Update to Dune 3 (@talex5 #410).

• Remove test dependency on Astring (@talex5 #402 #404).

• Simplify cancellation logic (@talex5 #396).

• time: Mtime.Spand.to_s has been deprecated in mtime 2.0.0 (@bikallem #385).