Function _terminate_process_tree

src/mcp/client/stdio.py:290–301

Kills the process and all its descendants. POSIX: SIGTERM to the process group, SIGKILL after FORCE_KILL_TIMEOUT. Windows: immediate Job Object termination (already a hard kill).

(process: ServerProcess)

async def _terminate_process_tree(process: ServerProcess) -> None:
    """Kills the process and all its descendants.

    POSIX: SIGTERM to the process group, SIGKILL after FORCE_KILL_TIMEOUT.
    Windows: immediate Job Object termination (already a hard kill).
    """
    if sys.platform == "win32":  # pragma: no cover
        await terminate_windows_process_tree(process)
    else:  # pragma: lax no cover
        # The Windows-only FallbackProcess never reaches the POSIX path.
        assert isinstance(process, Process)
        await terminate_posix_process_tree(process, FORCE_KILL_TIMEOUT)


def _close_subprocess_transport(process: ServerProcess) -> None: