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修复md2img运行时并发单例问题，避免预热双启动日志

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liuwei
2026-04-17 10:28:35 +08:00
parent 3d98b3c0a2
commit 1cf2cfd6e3
1 changed files with 6 additions and 1 deletions
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5
utils/markdown_to_image.py
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@@ -689,6 +689,7 @@ class _PersistentBrowser:
_BROWSER_MANAGER: Optional[_PersistentBrowser] = None _BROWSER_MANAGER: Optional[_PersistentBrowser] = None
_MD2IMG_RUNTIME = None _MD2IMG_RUNTIME = None
_MD2IMG_RUNTIME_LOCK = threading.Lock()
class _Md2ImgRuntime: class _Md2ImgRuntime:
@@ -754,6 +755,10 @@ class _Md2ImgRuntime:
def _get_md2img_runtime() -> _Md2ImgRuntime: def _get_md2img_runtime() -> _Md2ImgRuntime:
global _MD2IMG_RUNTIME global _MD2IMG_RUNTIME
# 并发首次访问时要加锁，避免创建出多个 runtime 实例，
# 进而出现“专用运行时已启动”日志重复与多线程并存问题。
if _MD2IMG_RUNTIME is None:
with _MD2IMG_RUNTIME_LOCK:
if _MD2IMG_RUNTIME is None: if _MD2IMG_RUNTIME is None:
_MD2IMG_RUNTIME = _Md2ImgRuntime() _MD2IMG_RUNTIME = _Md2ImgRuntime()
return _MD2IMG_RUNTIME return _MD2IMG_RUNTIME