GH-49198: [Python][Annotations] Flight, CUDA and other modules

python/pyarrow-stubs/pyarrow/_cuda.pyi

@@ -0,0 +1,158 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+from typing import Any
+
+import cuda  # type: ignore[import-not-found]
+
+from numba.cuda.cudadrv import driver as _numba_driver  # type: ignore[import-untyped, import-not-found] # noqa: E501
+
+from . import lib
+from ._stubs_typing import ArrayLike
+
+
+class Context(lib._Weakrefable):
+    def __init__(self, device_number: int = 0, handle: int | None = None) -> None: ...
+
+    @staticmethod
+    def from_numba(context: _numba_driver.Context | None = None) -> Context: ...
+
+    def to_numba(self) -> _numba_driver.Context: ...
+
+    @staticmethod
+    def get_num_devices() -> int: ...
+
+    @property
+    def device_number(self) -> int: ...
+
+    @property
+    def handle(self) -> int: ...
+
+    def synchronize(self) -> None: ...
+
+    @property
+    def bytes_allocated(self) -> int: ...
+
+    def get_device_address(self, address: int) -> int: ...
+
+    def new_buffer(self, nbytes: int) -> CudaBuffer: ...
+
+    @property
+    def memory_manager(self) -> lib.MemoryManager: ...
+
+    @property
+    def device(self) -> lib.Device: ...
+
+    def foreign_buffer(self, address: int, size: int, base: Any |
+                       None = None) -> CudaBuffer: ...
+
+    def open_ipc_buffer(self, ipc_handle: IpcMemHandle) -> CudaBuffer: ...
+
+    def buffer_from_data(
+        self,
+        data: CudaBuffer | HostBuffer | lib.Buffer | ArrayLike,
+        offset: int = 0,
+        size: int = -1,
+    ) -> CudaBuffer: ...
+
+    def buffer_from_object(self, obj: Any) -> CudaBuffer: ...
+
+
+class IpcMemHandle(lib._Weakrefable):
+    @staticmethod
+    def from_buffer(opaque_handle: lib.Buffer) -> IpcMemHandle: ...
+
+    def serialize(self, pool: lib.MemoryPool | None = None) -> lib.Buffer: ...
+
+
+class CudaBuffer(lib.Buffer):
+    @staticmethod
+    def from_buffer(buf: lib.Buffer) -> CudaBuffer: ...
+
+    @staticmethod
+    def from_numba(mem: _numba_driver.MemoryPointer) -> CudaBuffer: ...
+
+    def to_numba(self) -> _numba_driver.MemoryPointer: ...
+
+    def copy_to_host(
+        self,
+        position: int = 0,
+        nbytes: int = -1,
+        buf: lib.Buffer | None = None,
+        memory_pool: lib.MemoryPool | None = None,
+        resizable: bool = False,
+    ) -> lib.Buffer: ...
+
+    def copy_from_host(
+        self, data: lib.Buffer | ArrayLike, position: int = 0, nbytes: int = -1
+    ) -> int: ...
+
+    def copy_from_device(self, buf: CudaBuffer, position: int = 0,
+                         nbytes: int = -1) -> int: ...
+
+    def export_for_ipc(self) -> IpcMemHandle: ...
+
+    @property
+    def context(self) -> Context: ...
+
+    def slice(self, offset: int = 0, length: int | None = None) -> CudaBuffer: ...
+
+    def to_pybytes(self) -> bytes: ...
+
+
+class HostBuffer(lib.Buffer):
+    @property
+    def size(self) -> int: ...
+
+
+class BufferReader(lib.NativeFile):
+    def __init__(self, obj: CudaBuffer) -> None: ...
+    def read_buffer(self, nbytes: int | None = None) -> CudaBuffer: ...
+
+
+class BufferWriter(lib.NativeFile):
+    def __init__(self, obj: CudaBuffer) -> None: ...
+    def writeat(self, position: int, data: ArrayLike) -> None: ...
+
+    @property
+    def buffer_size(self) -> int: ...
+
+    @buffer_size.setter
+    def buffer_size(self, buffer_size: int): ...
+
+    @property
+    def num_bytes_buffered(self) -> int: ...
+
+
+def new_host_buffer(size: int, device: int = 0) -> HostBuffer: ...
+
+
+def serialize_record_batch(batch: lib.RecordBatch, ctx: Context) -> CudaBuffer: ...
+
+
+def read_message(
+    source: CudaBuffer | cuda.BufferReader, pool: lib.MemoryManager | None = None
+) -> lib.Message: ...
+
+
+def read_record_batch(
+    buffer: lib.Buffer,
+    object: lib.Schema,
+    *,
+    dictionary_memo: lib.DictionaryMemo | None = None,
+    pool: lib.MemoryPool | None = None,
+) -> lib.RecordBatch: ...