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/*
*
* Copyright 2015 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.
*
*/
#include <grpc/byte_buffer.h>
#include <grpc/byte_buffer_reader.h>
#include <grpcpp/impl/grpc_library.h>
#include <grpcpp/support/byte_buffer.h>
namespace grpc {
static internal::GrpcLibraryInitializer g_gli_initializer;
Status ByteBuffer::TrySingleSlice(Slice* slice) const {
if (!buffer_) {
return Status(StatusCode::FAILED_PRECONDITION, "Buffer not initialized");
}
if ((buffer_->type == GRPC_BB_RAW) &&
(buffer_->data.raw.compression == GRPC_COMPRESS_NONE) &&
(buffer_->data.raw.slice_buffer.count == 1)) {
grpc_slice internal_slice = buffer_->data.raw.slice_buffer.slices[0];
*slice = Slice(internal_slice, Slice::ADD_REF);
return Status::OK;
} else {
return Status(StatusCode::FAILED_PRECONDITION,
"Buffer isn't made up of a single uncompressed slice.");
}
}
Status ByteBuffer::DumpToSingleSlice(Slice* slice) const {
if (!buffer_) {
return Status(StatusCode::FAILED_PRECONDITION, "Buffer not initialized");
}
grpc_byte_buffer_reader reader;
if (!grpc_byte_buffer_reader_init(&reader, buffer_)) {
return Status(StatusCode::INTERNAL,
"Couldn't initialize byte buffer reader");
}
grpc_slice s = grpc_byte_buffer_reader_readall(&reader);
*slice = Slice(s, Slice::STEAL_REF);
grpc_byte_buffer_reader_destroy(&reader);
return Status::OK;
}
Status ByteBuffer::Dump(std::vector<Slice>* slices) const {
slices->clear();
if (!buffer_) {
return Status(StatusCode::FAILED_PRECONDITION, "Buffer not initialized");
}
grpc_byte_buffer_reader reader;
if (!grpc_byte_buffer_reader_init(&reader, buffer_)) {
return Status(StatusCode::INTERNAL,
"Couldn't initialize byte buffer reader");
}
grpc_slice s;
while (grpc_byte_buffer_reader_next(&reader, &s)) {
slices->push_back(Slice(s, Slice::STEAL_REF));
}
grpc_byte_buffer_reader_destroy(&reader);
return Status::OK;
}
} // namespace grpc
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