# Copyright (c) 2020, NVIDIA CORPORATION.
#
# Licensed 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.

cimport cython
from libcpp cimport bool
from libcpp.memory cimport unique_ptr

from rmm._lib.cuda_stream_view cimport cuda_stream_view
from rmm._lib.lib cimport cudaStream_t


cdef extern from "rmm/cuda_stream.hpp" namespace "rmm" nogil:
    cdef cppclass cuda_stream:
        cuda_stream() except +
        bool is_valid() except +
        cudaStream_t value() except +
        cuda_stream_view view() except +
        void synchronize() except +
        void synchronize_no_throw()


@cython.final
cdef class CudaStream:
    cdef unique_ptr[cuda_stream] c_obj
    cdef cudaStream_t value(self) nogil except *
    cpdef bool is_valid(self) nogil except *
