在 protobuf 消息中存储单个字节 [英] Store a single byte in a protobuf message

问题描述

我使用什么数据类型在协议缓冲区消息中存储单个字节?在 https://developers.google.com/protocol-buffers/docs 查看列表/proto#scalar 似乎 *int32 类型之一是最合适的.有没有更有效的方式来存储单个字节?

解决方案

好吧，您需要了解无论如何它至少需要两个字节 - 一个用于标记，一个用于数据.(如果字段编号较高，标记将占用更多空间.)如果您使用 uint32，则对于高达 127 的值，数据将占用 1 个字节，对于任何更大的值，将占用 2 个字节.

我认为没有比这更有效的方法了.

What data type do I use to store a single byte in a protocol buffer message? Seeing the list at https://developers.google.com/protocol-buffers/docs/proto#scalar it seems like one of the *int32 types are the best fit. Is there a more efficient way to store a single byte?

解决方案

Well you need to understand that it will take at least two bytes anyway - one for the tag and one for the data. (The tag will take more space if the field number is high.) If you use uint32, it will take 1 byte for the data for values up to 127, and 2 bytes for anything larger.

I don't believe there's anything that will be more efficient than that.

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