Proto Buffers 简介

Proto Buffers 是什么？

Protocol buffers are a language-neutral, platform-neutral extensible mechanism for serializing structured data.

@官网developers.google.com/protocol-buffers

Code example：

Define proto file

message Person {
      required string name = 1;
      required int32 id = 2;
      optional string email = 3;
}

Write to outputstream

Person john = Person.newBuilder()
    .setId(1234)
    .setName("John Doe")
    .setEmail("jdoe@example.com")
    .build();
output = new FileOutputStream(args[0]);
john.writeTo(output);

Parse from inputstream

Person john;
fstream input(argv[1],
    ios::in | ios::binary);
john.ParseFromIstream(&input);
id = john.id();
name = john.name();
email = john.email();