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Diffstat (limited to 'venv/lib/python3.11/site-packages/anyio/abc/_streams.py')
-rw-r--r-- | venv/lib/python3.11/site-packages/anyio/abc/_streams.py | 203 |
1 files changed, 0 insertions, 203 deletions
diff --git a/venv/lib/python3.11/site-packages/anyio/abc/_streams.py b/venv/lib/python3.11/site-packages/anyio/abc/_streams.py deleted file mode 100644 index 8c63868..0000000 --- a/venv/lib/python3.11/site-packages/anyio/abc/_streams.py +++ /dev/null @@ -1,203 +0,0 @@ -from __future__ import annotations - -from abc import abstractmethod -from collections.abc import Callable -from typing import Any, Generic, TypeVar, Union - -from .._core._exceptions import EndOfStream -from .._core._typedattr import TypedAttributeProvider -from ._resources import AsyncResource -from ._tasks import TaskGroup - -T_Item = TypeVar("T_Item") -T_co = TypeVar("T_co", covariant=True) -T_contra = TypeVar("T_contra", contravariant=True) - - -class UnreliableObjectReceiveStream( - Generic[T_co], AsyncResource, TypedAttributeProvider -): - """ - An interface for receiving objects. - - This interface makes no guarantees that the received messages arrive in the order in - which they were sent, or that no messages are missed. - - Asynchronously iterating over objects of this type will yield objects matching the - given type parameter. - """ - - def __aiter__(self) -> UnreliableObjectReceiveStream[T_co]: - return self - - async def __anext__(self) -> T_co: - try: - return await self.receive() - except EndOfStream: - raise StopAsyncIteration - - @abstractmethod - async def receive(self) -> T_co: - """ - Receive the next item. - - :raises ~anyio.ClosedResourceError: if the receive stream has been explicitly - closed - :raises ~anyio.EndOfStream: if this stream has been closed from the other end - :raises ~anyio.BrokenResourceError: if this stream has been rendered unusable - due to external causes - """ - - -class UnreliableObjectSendStream( - Generic[T_contra], AsyncResource, TypedAttributeProvider -): - """ - An interface for sending objects. - - This interface makes no guarantees that the messages sent will reach the - recipient(s) in the same order in which they were sent, or at all. - """ - - @abstractmethod - async def send(self, item: T_contra) -> None: - """ - Send an item to the peer(s). - - :param item: the item to send - :raises ~anyio.ClosedResourceError: if the send stream has been explicitly - closed - :raises ~anyio.BrokenResourceError: if this stream has been rendered unusable - due to external causes - """ - - -class UnreliableObjectStream( - UnreliableObjectReceiveStream[T_Item], UnreliableObjectSendStream[T_Item] -): - """ - A bidirectional message stream which does not guarantee the order or reliability of - message delivery. - """ - - -class ObjectReceiveStream(UnreliableObjectReceiveStream[T_co]): - """ - A receive message stream which guarantees that messages are received in the same - order in which they were sent, and that no messages are missed. - """ - - -class ObjectSendStream(UnreliableObjectSendStream[T_contra]): - """ - A send message stream which guarantees that messages are delivered in the same order - in which they were sent, without missing any messages in the middle. - """ - - -class ObjectStream( - ObjectReceiveStream[T_Item], - ObjectSendStream[T_Item], - UnreliableObjectStream[T_Item], -): - """ - A bidirectional message stream which guarantees the order and reliability of message - delivery. - """ - - @abstractmethod - async def send_eof(self) -> None: - """ - Send an end-of-file indication to the peer. - - You should not try to send any further data to this stream after calling this - method. This method is idempotent (does nothing on successive calls). - """ - - -class ByteReceiveStream(AsyncResource, TypedAttributeProvider): - """ - An interface for receiving bytes from a single peer. - - Iterating this byte stream will yield a byte string of arbitrary length, but no more - than 65536 bytes. - """ - - def __aiter__(self) -> ByteReceiveStream: - return self - - async def __anext__(self) -> bytes: - try: - return await self.receive() - except EndOfStream: - raise StopAsyncIteration - - @abstractmethod - async def receive(self, max_bytes: int = 65536) -> bytes: - """ - Receive at most ``max_bytes`` bytes from the peer. - - .. note:: Implementors of this interface should not return an empty - :class:`bytes` object, and users should ignore them. - - :param max_bytes: maximum number of bytes to receive - :return: the received bytes - :raises ~anyio.EndOfStream: if this stream has been closed from the other end - """ - - -class ByteSendStream(AsyncResource, TypedAttributeProvider): - """An interface for sending bytes to a single peer.""" - - @abstractmethod - async def send(self, item: bytes) -> None: - """ - Send the given bytes to the peer. - - :param item: the bytes to send - """ - - -class ByteStream(ByteReceiveStream, ByteSendStream): - """A bidirectional byte stream.""" - - @abstractmethod - async def send_eof(self) -> None: - """ - Send an end-of-file indication to the peer. - - You should not try to send any further data to this stream after calling this - method. This method is idempotent (does nothing on successive calls). - """ - - -#: Type alias for all unreliable bytes-oriented receive streams. -AnyUnreliableByteReceiveStream = Union[ - UnreliableObjectReceiveStream[bytes], ByteReceiveStream -] -#: Type alias for all unreliable bytes-oriented send streams. -AnyUnreliableByteSendStream = Union[UnreliableObjectSendStream[bytes], ByteSendStream] -#: Type alias for all unreliable bytes-oriented streams. -AnyUnreliableByteStream = Union[UnreliableObjectStream[bytes], ByteStream] -#: Type alias for all bytes-oriented receive streams. -AnyByteReceiveStream = Union[ObjectReceiveStream[bytes], ByteReceiveStream] -#: Type alias for all bytes-oriented send streams. -AnyByteSendStream = Union[ObjectSendStream[bytes], ByteSendStream] -#: Type alias for all bytes-oriented streams. -AnyByteStream = Union[ObjectStream[bytes], ByteStream] - - -class Listener(Generic[T_co], AsyncResource, TypedAttributeProvider): - """An interface for objects that let you accept incoming connections.""" - - @abstractmethod - async def serve( - self, handler: Callable[[T_co], Any], task_group: TaskGroup | None = None - ) -> None: - """ - Accept incoming connections as they come in and start tasks to handle them. - - :param handler: a callable that will be used to handle each accepted connection - :param task_group: the task group that will be used to start tasks for handling - each accepted connection (if omitted, an ad-hoc task group will be created) - """ |