Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

v0.0.10 - 2026-02-22

This version comes with a dynamic thread pool and an improved API.

Added

• New ergonomic API using exported functions like async { ... }, fiber { ... }, and await( $target ).

Changed

• Refactored native thread pool to use cond vars (PARA_COND_*) instead of busy polling, reducing idle CPU usage to near zero.
• Switched to a global job queue for the thread pool for better load balancing across worker threads.
• Reduced default fiber stack size from 4MB to 512K.
• Worker threads are now only spawned when the first asynchronous job is submitted.
• Increased MAX_FIBERS limit to 1024.
• Expose thread pool config with set_max_threads and max_threads.

v0.0.9 - 2026-02-21

Asynchronous HTTP::Tiny is basically a semi-automatic footgun.

Fixed

• Resolved AvFILLp(av) == -1 and !AvREAL(av) assertion failures in Perl_pp_entersub on DEBUGGING builds of Perl. This was fixed by ensuring Slot 0 (the argument array) of the next pad depth is correctly initialized during fiber context switches.

Changed

• Increased fiber stack size to 4MB to provide better support for deep Perl calls and regex operations. This is a temp solution.

v0.0.8 - 2026-02-19

All the remaining failing smokers all had old versions of Affix and sure enough when I installed v1.0.6, I saw the same failure. Always the most obvious thing...

Changed

• Require Affix v1.0.7

v0.0.7 - 2026-02-18

Another dist targetting a specific CPAN smoker. I cannot replicate the failure in https://www.cpantesters.org/cpan/report/f0ca1d14-0cfa-11f1-9988-e7d94c615303, so I'm just trying different things...

Fixed?

• Arguments passed to a fiber might not be released until the fiber object was destroyed.

v0.0.6 - 2026-02-18

Fixed

• Resolved assertion failures in Perl_cx_popsub_args and Perl_pp_entersub when running on a DEBUGGING build of Perl. This was fixed by ensuring CvDEPTH and pads are correctly restored during context switches. (I hope...)

Added

• Added --debug build to GitHub Actions matrix to ensure future compatibility with Perl debugging builds.

Changed

• Refactored swap_perl_state to be more robust regarding Perl's internal stack management.

v0.0.5 - 2026-02-18

Changed

• I'm honeslty just throwing stuff at the wall. Between my local machines and GH CI workflows, I cannot replicate some of the failures I'm seeing from smokers which makes them virtually impossible to resolve.

v0.0.4 - 2026-02-17

Changed

• Attempt to only spawn max X threads in t/006_parallel.t where X is 3 or the get_thread_pool_size()? See https://www.cpantesters.org/cpan/report/ecf1410e-0c46-11f1-8628-aee76d8775ea
• Recalculate PL_curpad = AvARRAY(PL_comppad) in swap_perl_state? See https://www.cpantesters.org/cpan/report/e7244bd8-0c44-11f1-b3ab-94362698fc84

v0.0.3 - 2026-02-17

Changed

• Adding an optional timeout to await_read and await_write.
• Allow fibers to return complex data (AV*, HV*).

v0.0.2 - 2026-02-17

Fixed

• Fixed segfault in coro_yield by adding NULL checks for destroyed or missing fibers.
• Resolved stall in exception handling by introducing last_sender tracking to prevent parent_id cycles.

Changed

• Made unit tests a lot more noisy

v0.0.1 - 2026-02-16

Changes

• It exists! It shouldn't but it does.