v3.3.0

Release 3.3.0 — BSD/macOS Compatibility and Poller Integration

Overview

This release introduces BSD/macOS compatibility for the asynchronous socket acceptor and event removal logic within the uvent core. It replaces Linux-specific accept4 and epoll_ctl with proper BSD/macOS equivalents using accept + fcntl and kqueue respectively.

Changes

• async_accept()

  • Added fallback for platforms without accept4 (macOS, NetBSD, OpenBSD).
  • Implemented accept() + fcntl(F_SETFL, O_NONBLOCK) + FD_CLOEXEC.
  • Added SO_NOSIGPIPE to prevent unwanted SIGPIPE on macOS.
  • Preserved EINTR handling and unified error handling logic.
  • Retained IPv4/IPv6 address propagation.

• Poller backend

  • In KQueue replaced epoll_ctl(..., EPOLL_CTL_DEL, ...) with alternative:

    EV_SET(&ev, fd, EVFILT_READ, EV_DELETE, 0, 0, nullptr);
    kevent(kqueue_fd, &ev, 1, nullptr, 0, nullptr);

    ensuring proper kqueue event removal for both EVFILT_READ and EVFILT_WRITE.

Impact

• Enables uvent to compile and operate correctly on BSD and macOS.
• No behavioral changes on Linux.
• Improves portability and reliability across POSIX environments.

Testing

• Verified async accept/connect cycle on MacOS 15.6 (24G84) and FreeBSD 14.
• Confirmed non-blocking sockets and SIGPIPE suppression.
• Validated event deletion behavior under kqueue without memory leaks or stale descriptors.