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29 lines
950 B
29 lines
950 B
# SPDX-License-Identifier: Apache-2.0 |
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# Copyright 2012-2021 The Meson development team |
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# Copyright © 2021-2023 Intel Corporation |
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from __future__ import annotations |
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"""Windows specific implementations of mesonlib functionality.""" |
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import msvcrt |
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import typing as T |
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from .core import MesonException |
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from .platform import BuildDirLock as BuildDirLockBase |
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__all__ = ['BuildDirLock'] |
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class BuildDirLock(BuildDirLockBase): |
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def __enter__(self) -> None: |
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self.lockfile = open(self.lockfilename, 'w', encoding='utf-8') |
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try: |
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msvcrt.locking(self.lockfile.fileno(), msvcrt.LK_NBLCK, 1) |
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except (BlockingIOError, PermissionError): |
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self.lockfile.close() |
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raise MesonException('Some other Meson process is already using this build directory. Exiting.') |
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def __exit__(self, *args: T.Any) -> None: |
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msvcrt.locking(self.lockfile.fileno(), msvcrt.LK_UNLCK, 1) |
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self.lockfile.close()
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