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fix: improve cache locking mechanism and enhance key handling in file and redis backends

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jxxghp
2026-06-12 08:21:26 +08:00
parent 83cc7ea716
commit 765b286fd7
3 changed files with 115 additions and 15 deletions
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32
app/core/cache.py
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@@ -421,7 +421,8 @@ class MemoryBackend(CacheBackend):
region_cache = self.__get_region_cache(region)
if region_cache is None:
return False
return key in region_cache
with self._lock:
return key in region_cache
def get(self, key: str, region: Optional[str] = DEFAULT_CACHE_REGION) -> Any:
"""
@@ -434,7 +435,8 @@ class MemoryBackend(CacheBackend):
region_cache = self.__get_region_cache(region)
if region_cache is None:
return None
return region_cache.get(key)
with self._lock:
return region_cache.get(key)
def delete(self, key: str, region: Optional[str] = DEFAULT_CACHE_REGION):
"""
@@ -447,7 +449,8 @@ class MemoryBackend(CacheBackend):
if region_cache is None:
return
with self._lock:
del region_cache[key]
if key in region_cache:
del region_cache[key]
def clear(self, region: Optional[str] = DEFAULT_CACHE_REGION) -> None:
"""
@@ -803,8 +806,10 @@ class FileBackend(CacheBackend):
:param region: 缓存的区
"""
cache_path = self.base / region / key
if cache_path.exists():
if cache_path.is_file():
cache_path.unlink()
elif cache_path.exists():
shutil.rmtree(cache_path, ignore_errors=True)
def clear(self, region: Optional[str] = DEFAULT_CACHE_REGION) -> None:
"""
@@ -840,10 +845,11 @@ class FileBackend(CacheBackend):
if not cache_path.exists():
yield from ()
return
for item in cache_path.iterdir():
for item in sorted(cache_path.rglob("*")):
if item.is_file():
with open(item, 'r') as f:
yield item.as_posix(), f.read()
key = item.relative_to(cache_path).as_posix()
with open(item, 'rb') as f:
yield key, f.read()
def close(self) -> None:
"""
@@ -916,8 +922,10 @@ class AsyncFileBackend(AsyncCacheBackend):
:param region: 缓存的区
"""
cache_path = AsyncPath(self.base) / region / key
if await cache_path.exists():
if await cache_path.is_file():
await cache_path.unlink()
elif await cache_path.exists():
await aioshutil.rmtree(cache_path, ignore_errors=True)
async def clear(self, region: Optional[str] = DEFAULT_CACHE_REGION) -> None:
"""
@@ -951,12 +959,12 @@ class AsyncFileBackend(AsyncCacheBackend):
"""
cache_path = AsyncPath(self.base) / region
if not await cache_path.exists():
yield "", None
return
async for item in cache_path.iterdir():
async for item in cache_path.rglob("*"):
if await item.is_file():
async with aiofiles.open(item, 'r') as f:
yield item.as_posix(), await f.read()
key = Path(str(item)).relative_to(Path(str(cache_path))).as_posix()
async with aiofiles.open(item, 'rb') as f:
yield key, await f.read()
async def close(self) -> None:
"""