Google google protobuf usage examples __protobuf

Here is an introduction to paste http://blog.csdn.net/hailong0715/article/details/52016682

Here on how to install the installation of the Caffe installed together, here to introduce how to use this library, Caffe use him as a data transmission means he soon

A new proto defines the structure of the data transfer, which is similar to the data transmission on ROS.

Syntax = "Proto2";
Package Caffe; Domain Name message person
{  
  Required String name = 1;  
  Required Int32 age = 2;  
  Optional String email = 3;  

  Enum Phonetype {  
    MOBILE = 0;  
    home = 1;  
    WORK = 2;  
  }  
  
  Message PhoneNumber {  
    Required String number = 1;  
    Optional Phonetype type = 2 [default = home];  
  }  
  
  Optional PhoneNumber phone = 4; 
  
}  

Package refers to the domain name, which is Std.

Write.cpp

#include <iostream>  
#include <fstream>  
#include "caffe.pb.h"  
  
using namespace std;  
using namespace Caffe;  
  
int main () {person by person  
    ;  
  
    Person.set_name ("Flamingo");     
    Person.set_age ();   
    Person.set_email ("majianfei1023@gmail.com");  
    Person.mutable_phone ()->set_number ("135525");
    
    Write  
    fstream output ("./log", Ios::out | ios::trunc | ios::binary);  
  
    if (!person. Serializetoostream (&output)) {  
        cerr << "Failed to write Msg." << Endl;  
        return-1;  
    }  
  
    System ("pause");  
    return 0;  
}  

In fact, I was looking at the functions defined in the caffe.pb.h he produced, and found that these functions can be used directly

Read.cpp

#include <iostream>  
#include <fstream>  
#include "caffe.pb.h"  
  

using namespace std;  
using namespace Caffe;  
  
void Printinfo (const person & person) {   
    cout << person.name () << Endl;   
    cout << person.age () << Endl;   
    cout << person.email () << Endl;  
    cout << Person.phone (). Number () << Endl; 
    cout << Person.phone (). Type () << Endl;   
  
int main () {person by person  
    ;    
  
    FStream input ("./log", Ios::in | ios::binary);  
      
    if (!person. Parsefromistream (&input)) {  
        cerr << "Failed to parse Address Book." << Endl;  
        return-1;  
    }  
  
    Printinfo (person);  

    return 0;  
}

Then compile and join the library.

Protoc--cpp_out=./Caffe.proto   #在当前目录生成. h and. CC
g++ write.cpp caffe.pb.cc-o write-lprotobuf
g++ Read.cpp Caffe.pb.cc-o Read-lprotobuf

This digest from: http://blog.csdn.net/cai13160674275/article/details/71214552