Skip to content

LockedKnowledgeStore

autogen.beta.knowledge.locked.LockedKnowledgeStore #

LockedKnowledgeStore(store, lock)

Wraps a KnowledgeStore with a Lock for concurrent access safety.

Reads are not locked (safe for concurrent access on all backends). Writes and deletes acquire the lock.

Source code in autogen/beta/knowledge/locked.py 
17
18
19
def __init__(self, store: KnowledgeStore, lock: Any) -> None:
    self._store = store
    self._lock = lock

read async #

read(path)
Source code in autogen/beta/knowledge/locked.py 
21
22
async def read(self, path: str) -> str | None:
    return await self._store.read(path)

write async #

write(path, content)
Source code in autogen/beta/knowledge/locked.py 
24
25
26
27
28
29
30
31
async def write(self, path: str, content: str) -> None:
    acquired = await self._lock.acquire(f"store:write:{path}", ttl=30.0)
    if not acquired:
        raise RuntimeError(f"Failed to acquire write lock for {path}")
    try:
        await self._store.write(path, content)
    finally:
        await self._lock.release(f"store:write:{path}")

list async #

list(path='/')
Source code in autogen/beta/knowledge/locked.py 
33
34
async def list(self, path: str = "/") -> list[str]:
    return await self._store.list(path)

delete async #

delete(path)
Source code in autogen/beta/knowledge/locked.py 
36
37
38
39
40
41
42
43
async def delete(self, path: str) -> None:
    acquired = await self._lock.acquire(f"store:write:{path}", ttl=30.0)
    if not acquired:
        raise RuntimeError(f"Failed to acquire delete lock for {path}")
    try:
        await self._store.delete(path)
    finally:
        await self._lock.release(f"store:write:{path}")

exists async #

exists(path)
Source code in autogen/beta/knowledge/locked.py 
45
46
async def exists(self, path: str) -> bool:
    return await self._store.exists(path)

append async #

append(path, content)
Source code in autogen/beta/knowledge/locked.py 
48
49
50
51
52
53
54
55
async def append(self, path: str, content: str) -> int:
    acquired = await self._lock.acquire(f"store:write:{path}", ttl=30.0)
    if not acquired:
        raise RuntimeError(f"Failed to acquire append lock for {path}")
    try:
        return await self._store.append(path, content)
    finally:
        await self._lock.release(f"store:write:{path}")

read_range async #

read_range(path, start, end=None)
Source code in autogen/beta/knowledge/locked.py 
57
58
async def read_range(self, path: str, start: int, end: int | None = None) -> str:
    return await self._store.read_range(path, start, end)

on_change async #

on_change(path, callback)
Source code in autogen/beta/knowledge/locked.py 
60
61
async def on_change(self, path: str, callback: ChangeCallback) -> ChangeSubscription:
    return await self._store.on_change(path, callback)