add missing things in multiprocessing (#13153)

stdlib/@tests/stubtest_allowlists/common.txt

@@ -37,34 +37,6 @@ turtledemo\..+
 # ======================================================================
 
 _thread.RLock
-multiprocessing.managers.Server.accepter
-multiprocessing.managers.Server.create
-multiprocessing.managers.Server.debug_info
-multiprocessing.managers.Server.decref
-multiprocessing.managers.Server.dummy
-multiprocessing.managers.Server.fallback_getvalue
-multiprocessing.managers.Server.fallback_mapping
-multiprocessing.managers.Server.fallback_repr
-multiprocessing.managers.Server.fallback_str
-multiprocessing.managers.Server.get_methods
-multiprocessing.managers.Server.handle_request
-multiprocessing.managers.Server.incref
-multiprocessing.managers.Server.number_of_objects
-multiprocessing.managers.Server.public
-multiprocessing.managers.Server.serve_client
-multiprocessing.managers.Server.shutdown
-multiprocessing.managers.SharedMemoryServer.create
-multiprocessing.managers.SharedMemoryServer.list_segments
-multiprocessing.managers.SharedMemoryServer.public
-multiprocessing.managers.SharedMemoryServer.release_segment
-multiprocessing.managers.SharedMemoryServer.shutdown
-multiprocessing.managers.SharedMemoryServer.track_segment
-multiprocessing.managers.SyncManager.Barrier
-multiprocessing.managers.SyncManager.JoinableQueue
-multiprocessing.managers.SyncManager.Pool
-multiprocessing.pool.Pool.Process
-multiprocessing.pool.ThreadPool.Process
-multiprocessing.synchronize.Semaphore.get_value
 tkinter.Misc.config
 
 

stdlib/multiprocessing/managers.pyi

@@ -1,13 +1,14 @@
 import queue
 import sys
 import threading
-from _typeshed import Incomplete, SupportsKeysAndGetItem, SupportsRichComparison, SupportsRichComparisonT
+from _typeshed import SupportsKeysAndGetItem, SupportsRichComparison, SupportsRichComparisonT
 from collections.abc import Callable, Iterable, Iterator, Mapping, MutableMapping, MutableSequence, Sequence
 from types import TracebackType
 from typing import Any, AnyStr, ClassVar, Generic, SupportsIndex, TypeVar, overload
 from typing_extensions import Self, TypeAlias
 
-from .connection import Connection
+from . import pool
+from .connection import Connection, _Address
 from .context import BaseContext
 from .shared_memory import _SLT, ShareableList as _ShareableList, SharedMemory as _SharedMemory
 from .util import Finalize as _Finalize
@@ -30,14 +31,14 @@ _Namespace: TypeAlias = Namespace
 
 class Token:
     typeid: str | bytes | None
-    address: tuple[str | bytes, int]
+    address: _Address | None
     id: str | bytes | int | None
-    def __init__(self, typeid: bytes | str | None, address: tuple[str | bytes, int], id: str | bytes | int | None) -> None: ...
+    def __init__(self, typeid: bytes | str | None, address: _Address | None, id: str | bytes | int | None) -> None: ...
     def __getstate__(self) -> tuple[str | bytes | None, tuple[str | bytes, int], str | bytes | int | None]: ...
     def __setstate__(self, state: tuple[str | bytes | None, tuple[str | bytes, int], str | bytes | int | None]) -> None: ...
 
 class BaseProxy:
-    _address_to_local: dict[Any, Any]
+    _address_to_local: dict[_Address, Any]
     _mutex: Any
     def __init__(
         self,
@@ -151,22 +152,50 @@ class ListProxy(BaseListProxy[_T]):
     if sys.version_info >= (3, 13):
         def __class_getitem__(cls, args: Any, /) -> Any: ...
 
+# Send is (kind, result)
+# Receive is (id, methodname, args, kwds)
+_ServerConnection: TypeAlias = Connection[tuple[str, Any], tuple[str, str, Iterable[Any], Mapping[str, Any]]]
+
 # Returned by BaseManager.get_server()
 class Server:
-    address: Any
+    address: _Address | None
+    id_to_obj: dict[str, tuple[Any, set[str], dict[str, str]]]
+    fallback_mapping: dict[str, Callable[[_ServerConnection, str, Any], Any]]
+    public: list[str]
+    # Registry values are (callable, exposed, method_to_typeid, proxytype)
     def __init__(
-        self, registry: dict[str, tuple[Callable[..., Any], Any, Any, Any]], address: Any, authkey: bytes, serializer: str
+        self,
+        registry: dict[str, tuple[Callable[..., Any], Iterable[str], dict[str, str], Any]],
+        address: _Address | None,
+        authkey: bytes,
+        serializer: str,
     ) -> None: ...
     def serve_forever(self) -> None: ...
-    def accept_connection(
-        self, c: Connection[tuple[str, str | None], tuple[str, str, Iterable[Incomplete], Mapping[str, Incomplete]]], name: str
-    ) -> None: ...
+    def accepter(self) -> None: ...
+    if sys.version_info >= (3, 10):
+        def handle_request(self, conn: _ServerConnection) -> None: ...
+    else:
+        def handle_request(self, c: _ServerConnection) -> None: ...
+
+    def serve_client(self, conn: _ServerConnection) -> None: ...
+    def fallback_getvalue(self, conn: _ServerConnection, ident: str, obj: _T) -> _T: ...
+    def fallback_str(self, conn: _ServerConnection, ident: str, obj: Any) -> str: ...
+    def fallback_repr(self, conn: _ServerConnection, ident: str, obj: Any) -> str: ...
+    def dummy(self, c: _ServerConnection) -> None: ...
+    def debug_info(self, c: _ServerConnection) -> str: ...
+    def number_of_objects(self, c: _ServerConnection) -> int: ...
+    def shutdown(self, c: _ServerConnection) -> None: ...
+    def create(self, c: _ServerConnection, typeid: str, /, *args: Any, **kwds: Any) -> tuple[str, tuple[str, ...]]: ...
+    def get_methods(self, c: _ServerConnection, token: Token) -> set[str]: ...
+    def accept_connection(self, c: _ServerConnection, name: str) -> None: ...
+    def incref(self, c: _ServerConnection, ident: str) -> None: ...
+    def decref(self, c: _ServerConnection, ident: str) -> None: ...
 
 class BaseManager:
     if sys.version_info >= (3, 11):
         def __init__(
             self,
-            address: Any | None = None,
+            address: _Address | None = None,
             authkey: bytes | None = None,
             serializer: str = "pickle",
             ctx: BaseContext | None = None,
@@ -176,7 +205,7 @@ class BaseManager:
     else:
         def __init__(
             self,
-            address: Any | None = None,
+            address: _Address | None = None,
             authkey: bytes | None = None,
             serializer: str = "pickle",
             ctx: BaseContext | None = None,
@@ -188,7 +217,7 @@ class BaseManager:
     shutdown: _Finalize  # only available after start() was called
     def join(self, timeout: float | None = None) -> None: ...  # undocumented
     @property
-    def address(self) -> Any: ...
+    def address(self) -> _Address | None: ...
     @classmethod
     def register(
         cls,
@@ -205,14 +234,26 @@ class BaseManager:
     ) -> None: ...
 
 class SyncManager(BaseManager):
-    def BoundedSemaphore(self, value: Any = ...) -> threading.BoundedSemaphore: ...
-    def Condition(self, lock: Any = ...) -> threading.Condition: ...
+    def Barrier(
+        self, parties: int, action: Callable[[], None] | None = None, timeout: float | None = None
+    ) -> threading.Barrier: ...
+    def BoundedSemaphore(self, value: int = 1) -> threading.BoundedSemaphore: ...
+    def Condition(self, lock: threading.Lock | threading._RLock | None = None) -> threading.Condition: ...
     def Event(self) -> threading.Event: ...
     def Lock(self) -> threading.Lock: ...
     def Namespace(self) -> _Namespace: ...
+    def Pool(
+        self,
+        processes: int | None = None,
+        initializer: Callable[..., object] | None = None,
+        initargs: Iterable[Any] = (),
+        maxtasksperchild: int | None = None,
+        context: Any | None = None,
+    ) -> pool.Pool: ...
     def Queue(self, maxsize: int = ...) -> queue.Queue[Any]: ...
+    def JoinableQueue(self, maxsize: int = ...) -> queue.Queue[Any]: ...
     def RLock(self) -> threading.RLock: ...
-    def Semaphore(self, value: Any = ...) -> threading.Semaphore: ...
+    def Semaphore(self, value: int = 1) -> threading.Semaphore: ...
     def Array(self, typecode: Any, sequence: Sequence[_T]) -> Sequence[_T]: ...
     def Value(self, typecode: Any, value: _T) -> ValueProxy[_T]: ...
     # Overloads are copied from builtins.dict.__init__
@@ -238,7 +279,11 @@ class SyncManager(BaseManager):
     def list(self) -> ListProxy[Any]: ...
 
 class RemoteError(Exception): ...
-class SharedMemoryServer(Server): ...
+
+class SharedMemoryServer(Server):
+    def track_segment(self, c: _ServerConnection, segment_name: str) -> None: ...
+    def release_segment(self, c: _ServerConnection, segment_name: str) -> None: ...
+    def list_segments(self, c: _ServerConnection) -> list[str]: ...
 
 class SharedMemoryManager(BaseManager):
     def get_server(self) -> SharedMemoryServer: ...

stdlib/multiprocessing/pool.pyi

@@ -1,5 +1,6 @@
 import sys
 from collections.abc import Callable, Iterable, Mapping
+from multiprocessing.context import DefaultContext, Process
 from types import TracebackType
 from typing import Any, Final, Generic, TypeVar
 from typing_extensions import Self
@@ -53,6 +54,8 @@ class Pool:
         maxtasksperchild: int | None = None,
         context: Any | None = None,
     ) -> None: ...
+    @staticmethod
+    def Process(ctx: DefaultContext, *args: Any, **kwds: Any) -> Process: ...
     def apply(self, func: Callable[..., _T], args: Iterable[Any] = (), kwds: Mapping[str, Any] = {}) -> _T: ...
     def apply_async(
         self,

stdlib/multiprocessing/synchronize.pyi

@@ -54,6 +54,7 @@ class RLock(SemLock):
 
 class Semaphore(SemLock):
     def __init__(self, value: int = 1, *, ctx: BaseContext) -> None: ...
+    def get_value(self) -> int: ...
 
 class BoundedSemaphore(Semaphore):
     def __init__(self, value: int = 1, *, ctx: BaseContext) -> None: ...