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https://github.com/jxxghp/MoviePilot.git
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46 lines
1.3 KiB
Python
46 lines
1.3 KiB
Python
"""虚拟显示进程的托管资源实现。"""
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from __future__ import annotations
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import os
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from typing import Any, Optional
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from app.adapters.system.host import SystemUtils
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from app.runtime.log import logger
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class VirtualDisplayResource:
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"""按需拥有一个容器内虚拟显示进程。"""
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def __init__(self) -> None:
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self._display: Optional[Any] = None
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@property
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def display(self) -> Optional[Any]:
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"""返回当前拥有的显示对象；未启动或已停止时为 None。"""
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return self._display
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def start(self) -> None:
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"""仅在容器环境启动虚拟显示，重复启动保持幂等。"""
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if self._display is not None or not SystemUtils.is_docker():
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return
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from pyvirtualdisplay import Display
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display = Display(
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visible=False,
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size=(1024, 768),
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extra_args=[os.environ["DISPLAY"]],
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)
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self._display = display
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display.start()
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def stop(self) -> None:
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"""停止当前资源拥有的显示进程，失败时保留句柄供 Runtime 重试。"""
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display = self._display
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if display is None:
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return
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logger.info("正在停止虚拟显示...")
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display.stop()
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self._display = None
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logger.info("虚拟显示已停止")
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