Class FixtureHTTPServer

scripts/smoke-fixture-server.py:15–31

Bind without the stdlib's reverse-DNS lookup. http.server.HTTPServer.server_bind() resolves socket.getfqdn(host). On a host whose resolver does not answer for the bind address that call blocks for the resolver timeout, so the process stays alive and never reaches publish_port -- obs

class FixtureHTTPServer(http.server.ThreadingHTTPServer):
    """Bind without the stdlib's reverse-DNS lookup.

    http.server.HTTPServer.server_bind() resolves socket.getfqdn(host). On a
    host whose resolver does not answer for the bind address that call blocks
    for the resolver timeout, so the process stays alive and never reaches
    publish_port -- observed on macOS Intel runners as waited=30.0s,
    exit_status=alive, port_file=absent, empty startup log. The FQDN only
    feeds CGI-style variables this fixture never serves, so binding without
    it is both sufficient and immune to resolver behaviour.
    """

    def server_bind(self) -> None:
        socketserver.TCPServer.server_bind(self)
        host, port = self.server_address[:2]
        self.server_name = host
        self.server_port = port


def publish_port(port_file: pathlib.Path, port: int) -> None: