v1.4.0 - Erlang-native asyncio event loop

Added

• Erlang-native asyncio event loop - Custom asyncio event loop backed by Erlang's scheduler

  • ErlangEventLoop class in priv/erlang_loop.py
  • Sub-millisecond latency via Erlang's enif_select (vs 10ms polling)
  • Zero CPU usage when idle - no busy-waiting or polling overhead
  • Full GIL release during waits for better concurrency
  • Native Erlang scheduler integration for I/O events
  • Event loop policy via get_event_loop_policy()

• TCP support for asyncio event loop

  • create_connection() - TCP client connections
  • create_server() - TCP server with accept loop
  • _ErlangSocketTransport - Non-blocking socket transport with write buffering
  • _ErlangServer - TCP server with serve_forever() support

• UDP/datagram support for asyncio event loop

  • create_datagram_endpoint() - Create UDP endpoints with full parameter support
  • _ErlangDatagramTransport - Datagram transport implementation
  • Parameters: local_addr, remote_addr, reuse_address, reuse_port, allow_broadcast
  • DatagramProtocol callbacks: datagram_received(), error_received()
  • Support for both connected and unconnected UDP

• Asyncio event loop documentation

  • New documentation: docs/asyncio.md

Performance

• Event loop optimizations
  • Fixed run_until_complete callback removal bug
  • Cached ast.literal_eval lookup at module initialization
  • O(1) timer cancellation via handle-to-callback_id reverse map
  • Detach pending queue under mutex, build Erlang terms outside lock
  • O(1) duplicate event detection using hash set
  • Added PERF_BUILD cmake option for aggressive optimizations (-O3, LTO, -march=native)

Full Changelog: https://github.com/benoitc/erlang-python/blob/main/CHANGELOG.md