发送的Protobuf与消息的boost :: ASIO [英] Sending Protobuf Messages with boost::asio

问题描述

我想在C一起下锅客户++使用谷歌的协议缓冲器和boost :: ASIO。

I'm trying to hack a client together in C++ using Google's Protocol Buffers and boost::asio.

我的问题是，我不知道我怎么能养活的protobuf消息ASIO。
我已经是这样的：

My problem is that I don't know how I can feed the protobuf message to asio. What I have is this:

// set up *sock - works
PlayerInfo info;
info.set_name(name);
// other stuff

现在我知道，下列哪项是错误的，但我会反正它张贴：

Now I know that the following is wrong, but I'll post it anyways:

size_t request_length = info.ByteSize();
boost::asio::write(*sock, boost::asio::buffer(info, request_length));

我得到尽可能我知道我有不同的包我的消息到缓冲区 - 但如何

I got as far as that I know that I have to pack my message differently into the buffer - but how?

一般来说，我有一个很难搞清楚如何提高:: ASIO的作品。有一些教程，但他们通常只涵盖发送标准数据格式，如int型，其工作外的开箱。我想，我的问题是的系列化的，但在另一方面，我了解到的protobuf要帮我这个忙......现在我很困惑;）

Generally speaking, I'm having a hard time figuring out how boost::asio works. There are some tutorials, but they normally just cover sending standard data formats such as ints, which works out-of-the-box. I figured that my problem is serialization, but on the other hand I learned that protobuf should do this for me... and now I'm confused ;)

感谢您的帮助！

- >丹尼尔Gehriger提供的解决方案，非常感谢

--> Daniel Gehriger provided the solution, thanks a lot!

推荐答案

我不知道很多关于谷歌的协议缓冲区，但请尝试以下操作：

I don't know much about Google's Protocol buffer, but try the following:

PlayerInfo info;
info.set_name(name);
// ...

boost::asio::streambuf b;
std::ostream os(&b);
info.SerializeToOstream(&os);

boost::asio::write(*sock, b);

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