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# Copyright 2017 gRPC authors.
#
# 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.
cdef class Operation:
cdef void c(self) except *:
raise NotImplementedError()
cdef void un_c(self) except *:
raise NotImplementedError()
cdef class SendInitialMetadataOperation(Operation):
def __cinit__(self, initial_metadata, flags):
self._initial_metadata = initial_metadata
self._flags = flags
def type(self):
return GRPC_OP_SEND_INITIAL_METADATA
cdef void c(self) except *:
self.c_op.type = GRPC_OP_SEND_INITIAL_METADATA
self.c_op.flags = self._flags
_store_c_metadata(
self._initial_metadata, &self._c_initial_metadata,
&self._c_initial_metadata_count)
self.c_op.data.send_initial_metadata.metadata = self._c_initial_metadata
self.c_op.data.send_initial_metadata.count = self._c_initial_metadata_count
self.c_op.data.send_initial_metadata.maybe_compression_level.is_set = 0
cdef void un_c(self) except *:
_release_c_metadata(
self._c_initial_metadata, self._c_initial_metadata_count)
cdef class SendMessageOperation(Operation):
def __cinit__(self, bytes message, int flags):
self._message = message
self._flags = flags
def type(self):
return GRPC_OP_SEND_MESSAGE
cdef void c(self) except *:
self.c_op.type = GRPC_OP_SEND_MESSAGE
self.c_op.flags = self._flags
cdef grpc_slice message_slice = grpc_slice_from_copied_buffer(
self._message, len(self._message))
self._c_message_byte_buffer = grpc_raw_byte_buffer_create(
&message_slice, 1)
grpc_slice_unref(message_slice)
self.c_op.data.send_message.send_message = self._c_message_byte_buffer
cdef void un_c(self) except *:
grpc_byte_buffer_destroy(self._c_message_byte_buffer)
cdef class SendCloseFromClientOperation(Operation):
def __cinit__(self, int flags):
self._flags = flags
def type(self):
return GRPC_OP_SEND_CLOSE_FROM_CLIENT
cdef void c(self) except *:
self.c_op.type = GRPC_OP_SEND_CLOSE_FROM_CLIENT
self.c_op.flags = self._flags
cdef void un_c(self) except *:
pass
cdef class SendStatusFromServerOperation(Operation):
def __cinit__(self, trailing_metadata, code, object details, int flags):
self._trailing_metadata = trailing_metadata
self._code = code
self._details = details
self._flags = flags
def type(self):
return GRPC_OP_SEND_STATUS_FROM_SERVER
cdef void c(self) except *:
self.c_op.type = GRPC_OP_SEND_STATUS_FROM_SERVER
self.c_op.flags = self._flags
_store_c_metadata(
self._trailing_metadata, &self._c_trailing_metadata,
&self._c_trailing_metadata_count)
self.c_op.data.send_status_from_server.trailing_metadata = (
self._c_trailing_metadata)
self.c_op.data.send_status_from_server.trailing_metadata_count = (
self._c_trailing_metadata_count)
self.c_op.data.send_status_from_server.status = self._code
self._c_details = _slice_from_bytes(_encode(self._details))
self.c_op.data.send_status_from_server.status_details = &self._c_details
cdef void un_c(self) except *:
grpc_slice_unref(self._c_details)
_release_c_metadata(
self._c_trailing_metadata, self._c_trailing_metadata_count)
cdef class ReceiveInitialMetadataOperation(Operation):
def __cinit__(self, flags):
self._flags = flags
def type(self):
return GRPC_OP_RECV_INITIAL_METADATA
cdef void c(self) except *:
self.c_op.type = GRPC_OP_RECV_INITIAL_METADATA
self.c_op.flags = self._flags
grpc_metadata_array_init(&self._c_initial_metadata)
self.c_op.data.receive_initial_metadata.receive_initial_metadata = (
&self._c_initial_metadata)
cdef void un_c(self) except *:
self._initial_metadata = _metadata(&self._c_initial_metadata)
grpc_metadata_array_destroy(&self._c_initial_metadata)
def initial_metadata(self):
return self._initial_metadata
cdef class ReceiveMessageOperation(Operation):
def __cinit__(self, flags):
self._flags = flags
def type(self):
return GRPC_OP_RECV_MESSAGE
cdef void c(self) except *:
self.c_op.type = GRPC_OP_RECV_MESSAGE
self.c_op.flags = self._flags
self.c_op.data.receive_message.receive_message = (
&self._c_message_byte_buffer)
cdef void un_c(self) except *:
cdef grpc_byte_buffer_reader message_reader
cdef bint message_reader_status
cdef grpc_slice message_slice
cdef size_t message_slice_length
cdef void *message_slice_pointer
if self._c_message_byte_buffer != NULL:
message_reader_status = grpc_byte_buffer_reader_init(
&message_reader, self._c_message_byte_buffer)
if message_reader_status:
message = bytearray()
while grpc_byte_buffer_reader_next(&message_reader, &message_slice):
message_slice_pointer = grpc_slice_start_ptr(message_slice)
message_slice_length = grpc_slice_length(message_slice)
message += (<char *>message_slice_pointer)[:message_slice_length]
grpc_slice_unref(message_slice)
grpc_byte_buffer_reader_destroy(&message_reader)
self._message = bytes(message)
else:
self._message = None
grpc_byte_buffer_destroy(self._c_message_byte_buffer)
else:
self._message = None
def message(self):
return self._message
cdef class ReceiveStatusOnClientOperation(Operation):
def __cinit__(self, flags):
self._flags = flags
def type(self):
return GRPC_OP_RECV_STATUS_ON_CLIENT
cdef void c(self) except *:
self.c_op.type = GRPC_OP_RECV_STATUS_ON_CLIENT
self.c_op.flags = self._flags
grpc_metadata_array_init(&self._c_trailing_metadata)
self.c_op.data.receive_status_on_client.trailing_metadata = (
&self._c_trailing_metadata)
self.c_op.data.receive_status_on_client.status = (
&self._c_code)
self.c_op.data.receive_status_on_client.status_details = (
&self._c_details)
self.c_op.data.receive_status_on_client.error_string = (
&self._c_error_string)
cdef void un_c(self) except *:
self._trailing_metadata = _metadata(&self._c_trailing_metadata)
grpc_metadata_array_destroy(&self._c_trailing_metadata)
self._code = self._c_code
self._details = _decode(_slice_bytes(self._c_details))
grpc_slice_unref(self._c_details)
if self._c_error_string != NULL:
self._error_string = _decode(self._c_error_string)
gpr_free(<void*>self._c_error_string)
else:
self._error_string = ""
def trailing_metadata(self):
return self._trailing_metadata
def code(self):
return self._code
def details(self):
return self._details
def error_string(self):
return self._error_string
cdef class ReceiveCloseOnServerOperation(Operation):
def __cinit__(self, flags):
self._flags = flags
def type(self):
return GRPC_OP_RECV_CLOSE_ON_SERVER
cdef void c(self) except *:
self.c_op.type = GRPC_OP_RECV_CLOSE_ON_SERVER
self.c_op.flags = self._flags
self.c_op.data.receive_close_on_server.cancelled = &self._c_cancelled
cdef void un_c(self) except *:
self._cancelled = bool(self._c_cancelled)
def cancelled(self):
return self._cancelled
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