Function _dropped_instances_script

tests/test_read_write_fork.py:330–355

()

def _dropped_instances_script() -> str:  # pragma: needs fd-directory
    return textwrap.dedent(
        """
        from __future__ import annotations

        import gc
        import sys
        from pathlib import Path

        from filelock import ReadWriteLock

        root = Path(sys.argv[1])
        descriptor_path = Path("/dev/fd") if Path("/dev/fd").is_dir() else Path("/proc/self/fd")
        gc.collect()
        initial_count = sum(1 for _ in descriptor_path.iterdir())
        for index in range(100):
            lock = ReadWriteLock(root / f"dropped-{index}.db", is_singleton=False)
            lock.acquire_write()
            del lock
        gc.collect()

        assert sum(1 for _ in descriptor_path.iterdir()) == initial_count
        with ReadWriteLock(root / "dropped-0.db", is_singleton=False).read_lock():
            pass
        """
    )


def _reentrant_finalizer_script() -> str:  # pragma: needs fork