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Diffstat (limited to 'include/grpc++/impl/codegen/proto_utils.h')
-rw-r--r-- | include/grpc++/impl/codegen/proto_utils.h | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/include/grpc++/impl/codegen/proto_utils.h b/include/grpc++/impl/codegen/proto_utils.h new file mode 100644 index 0000000000..ce177104e0 --- /dev/null +++ b/include/grpc++/impl/codegen/proto_utils.h @@ -0,0 +1,76 @@ +/* + * + * Copyright 2015-2016, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef GRPCXX_IMPL_CODEGEN_PROTO_UTILS_H +#define GRPCXX_IMPL_CODEGEN_PROTO_UTILS_H + +#include <type_traits> + +#include <grpc/impl/codegen/byte_buffer.h> +#include <grpc++/impl/codegen/serialization_traits.h> +#include <grpc++/impl/codegen/config_protobuf.h> +#include <grpc++/impl/codegen/status.h> + +namespace grpc { + +// Serialize the msg into a buffer created inside the function. The caller +// should destroy the returned buffer when done with it. If serialization fails, +// false is returned and buffer is left unchanged. +Status SerializeProto(const grpc::protobuf::Message& msg, + grpc_byte_buffer** buffer); + +// The caller keeps ownership of buffer and msg. +Status DeserializeProto(grpc_byte_buffer* buffer, grpc::protobuf::Message* msg, + int max_message_size); + +template <class T> +class SerializationTraits<T, typename std::enable_if<std::is_base_of< + grpc::protobuf::Message, T>::value>::type> { + public: + static Status Serialize(const grpc::protobuf::Message& msg, + grpc_byte_buffer** buffer, bool* own_buffer) { + *own_buffer = true; + return SerializeProto(msg, buffer); + } + static Status Deserialize(grpc_byte_buffer* buffer, + grpc::protobuf::Message* msg, + int max_message_size) { + auto status = DeserializeProto(buffer, msg, max_message_size); + grpc_byte_buffer_destroy(buffer); + return status; + } +}; + +} // namespace grpc + +#endif // GRPCXX_IMPL_CODEGEN_PROTO_UTILS_H |