What's Changed

Added

• Non-blocking flock(): flock() no longer blocks the event loop. The lock operation is offloaded to the libuv thread pool via zend_async_task_t, allowing other coroutines to continue executing while waiting for a file lock.
• zend_async_task_new() API: New factory function for creating thread pool tasks, registered through the reactor like timer and IO events. Replaces manual pecalloc + field initialization.

Fixed

• await_*() deadlock with already-completed awaitables: When a coroutine or Future passed to await_all(), await_any_or_fail(), or other await_*() functions had already completed, it was skipped entirely (ZEND_ASYNC_EVENT_IS_CLOSED → continue), but resolved_count was never incremented. Since total still counted the skipped awaitable, resolved_count could never reach total, causing a deadlock. Fixed by using ZEND_ASYNC_EVENT_REPLAY to synchronously replay the stored result/exception through the normal callback path, correctly updating all counters. Additionally, when replay satisfies the waiting condition early (e.g. await_any_or_fail needs only one result), the loop now breaks immediately instead of subscribing to remaining awaitables and suspending unnecessarily.

Full Changelog: v0.6.1...v0.6.2