Apache Thrift C++库的TThreadPoolServer模式的完整示例-Toy模板网

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1. 本程序功能

1) 要有完整的request 和 response;

2) 支持多进程并行处理任务；

3)子进程任务结束后无僵尸进程

2.Apache Thrift C++库的编译和安装

见

步步详解：Apache Thrift C++库从编译到工作模式DEMO_北雨南萍的博客-CSDN博客

3.框架生成

数据字段定义：

cat Datainfo.thrift

# Datainfo.thrift

struct message
{
1:i32 seqId,
2:string content
}

struct response
{
1:i32 seqId,
2:string content
}

service serDemo
{
response put(1:message msg)
}

thrift -gen cpp Datainfo.thrift

4.Server端源码

serDemo_server.skeleton.cpp

// This autogenerated skeleton file illustrates how to build a server.
// You should copy it to another filename to avoid overwriting it.

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/wait.h>

#include <iostream>
#include <stdexcept>
#include <thread>

#include "serDemo.h"

#include <thrift/concurrency/ThreadManager.h>
#include <thrift/concurrency/ThreadFactory.h>
#include <thrift/concurrency/ThreadManager.h>
#include <thrift/protocol/TBinaryProtocol.h>
#include <thrift/server/TSimpleServer.h>
#include <thrift/server/TThreadPoolServer.h>
#include <thrift/transport/TSocket.h>
#include <thrift/transport/TServerSocket.h>
#include <thrift/transport/TBufferTransports.h>

using namespace ::apache::thrift;
using namespace ::apache::thrift::concurrency;
using namespace ::apache::thrift::protocol;
using namespace ::apache::thrift::transport;
using namespace ::apache::thrift::server;


void handler(int num) {
    //我接受到了SIGCHLD的信号啦
    int status;
    int pid = waitpid(-1,&status,WNOHANG);
    if(WIFEXITED(status)) {
        printf("The child exit with code %d\n",WEXITSTATUS(status));
    }                         
}

class serDemoHandler : virtual public serDemoIf {
 public:
  serDemoHandler() {
    // 构造函数:用于初始任务处理句柄对象
  }

  void put(response& _return, const message& msg) {
    // Your implementation goes here
    printf("put starting ...\n");
    printf("receive message: id: %d, content: %s\n", msg.seqId, msg.content.c_str());
    char* ffmpeg_argv[]={"/ffmpeg",
                   "-i",
                   "/opt/videoroom-1234-user-161756615651626-1615963571436156-video.mp4",
                   "-t",
                   "60",
                   "-vcodec",
                   "libx264",
                   "-f",
                   "flv",
                   "-y",
                   "/opt/videoroom-1234-user-161756615651626-1615963571436156-video.flv",
		   NULL};
   
    printf("ffmpeg_argv:\n");
    for (int i = 0; ffmpeg_argv[i] != NULL; i++) {
        printf("%s ", ffmpeg_argv[i]);
    }
    printf("\n");

    pid_t pid = fork();
    if (pid == 0) {
        execvp(ffmpeg_argv[0], ffmpeg_argv);
	exit(0);
    } else if (pid > 0) {
        printf("This is the parent process\n");
    } else {
        printf("Fork failed\n");
    }

    // 回复消息
    _return.seqId     = msg.seqId;
    _return.content   = "This is the response message.";

    printf("put stopped.\n");
  }

};

int main(int argc, char **argv) {
  int port = 19090;
  signal(SIGCHLD,handler);
  /*** TThreadPoolServer工作模式 ***/
  try {
    //创建一个线程管理器
    std::shared_ptr<ThreadManager> threadManager = ThreadManager::newSimpleThreadManager(16);
    std::shared_ptr<ThreadFactory> threadFactory = std::shared_ptr<ThreadFactory>(new ThreadFactory());
    threadManager->threadFactory(threadFactory);
    threadManager->start();

    std::shared_ptr<serDemoHandler> handler(new serDemoHandler());
    std::shared_ptr<TProcessor>     processor(new serDemoProcessor(handler));

    ::std::shared_ptr<TServerTransport> serverTransport(new TServerSocket(port));
    ::std::shared_ptr<TTransportFactory> transportFactory(new TBufferedTransportFactory());
    ::std::shared_ptr<TProtocolFactory> protocolFactory(new TBinaryProtocolFactory());

    TThreadPoolServer server(processor, 
                             serverTransport, 
                             transportFactory, 
                             protocolFactory,
                             threadManager);

    // 启动服务
    ::std::cout << "Starting the TThreadPoolServer ..." << std::endl;
    server.serve();
    ::std::cout << "Server stopped." << std::endl;

  } catch (std::exception& e) {
    std::cerr << "Error: " << e.what() << std::endl;
  }

  return 0;
}

编译生成server

g++ -std=c++11 -g -Wall Datainfo_types.cpp serDemo.cpp serDemo_server.skeleton.cpp -o server -lthrift -lpthread

5. client端源码

client.cpp

// 在同级目录下创建 client.cpp 文件
// ----------替换成自己的头文件----------
#include "serDemo.h"
// --------------------------------------
#include <thrift/transport/TSocket.h>
#include <thrift/transport/TBufferTransports.h>
#include <thrift/protocol/TBinaryProtocol.h>

using namespace apache::thrift;   
using namespace apache::thrift::protocol;   
using namespace apache::thrift::transport;   
   
using boost::shared_ptr;   
   
int main(int argc, char **argv) {   
  /* 不能用localhost, 否则会有运行时提示:"
   * TSocket::open() connect() <Host: localhost Port: 19090>: Connection refused
   */
  //std::shared_ptr<TSocket> socket(new TSocket("localhost", 19090));   
  std::shared_ptr<TSocket> socket(new TSocket("127.0.0.1", 19090));   
  std::shared_ptr<TTransport> transport(new TBufferedTransport(socket));   
  std::shared_ptr<TProtocol> protocol(new TBinaryProtocol(transport));

  serDemoClient client(protocol);   
   
  transport->open();   
   
  // ----------------------------我们的代码写在这里------------------------------  
  message msg;  
  msg.seqId = 1;  
  msg.content = "client message";    
 
  response response_put;
  client.put(response_put, msg);  

  printf("seqId: %d, content: %s\n", response_put.seqId, response_put.content.c_str());
  //--------------------------------------------------------------------------  
  
  transport->close();   
   
  return 0;   
}

编译生成client

g++ -std=c++11 -g -Wall Datainfo_types.cpp serDemo.cpp client.cpp -o client -lthrift -lpthread文章来源地址https://www.toymoban.com/news/detail-626714.html

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