LINUX下的多线程框架

最新推荐文章于 2025-04-01 15:00:00 发布

原创最新推荐文章于 2025-04-01 15:00:00 发布 · 1.1k 阅读

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文章标签：

#linux #thread #null #vector #iostream #多线程

本文分享了一个LINUX环境下多线程程序的实现案例。该程序通过创建多个写入和读取线程来演示线程间同步和互斥操作。使用了pthread库，并通过信号量和互斥锁来确保数据一致性。

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前一段时间搞了LINUX的多线程。下面把源代贴出来，雅谷共享：

#include <stdio.h>
#include <string.h>
#include <iostream>
#include "time.h"
#include "adatetime.h"
#include <pthread.h>
#include <vector>
#include <sstream>
#include <stdio.h>
#include <unistd.h>
#include <semaphore.h>

using namespace std;
vector <string> Record;
void * Write_Thread(void * arg);
void * Read_Thread(void *arg);

sem_t bat_sem;

pthread_mutex_t decompress_mutex;

main()
{
pthread_t a_thread;
pthread_t b_thread;
pthread_t c_thread;
pthread_t d_thread;

TIMETYPE timeType;
getmytime( &timeType );
char time[ 11 ];
memset( time , 0 , sizeof( time ) );
sprintf( time , "[%2d:%2d:%2d]" , timeType.hour , timeType.min , timeType.sec );
cout << time << "hello the new unix programmers' world!" << endl;

pthread_mutex_init(&decompress_mutex, NULL);
sem_init(&bat_sem, 0, 0);

int i=100;
pthread_create(&a_thread, NULL, Write_Thread, (void *)(&i));
sleep(1);
i=200;
pthread_create(&b_thread, NULL, Write_Thread, (void *)(&i));
sleep(1);
i=300;
pthread_create(&c_thread, NULL, Write_Thread, (void *)(&i));
sleep(1);
pthread_create(&d_thread, NULL, Read_Thread, NULL);
sleep(1);
pthread_create(&d_thread, NULL, Read_Thread, NULL);
sleep(1);
pthread_create(&d_thread, NULL, Read_Thread, NULL);
int c=getchar();

pthread_mutex_destroy(&decompress_mutex);

}
void * Write_Thread(void * arg)
{
while (true)
{
  int count=*((int *)arg);
  for (int i=(count-100);i<=count;i++)
  {
   ostringstream buf;
   buf<<i;
   pthread_mutex_lock(&decompress_mutex);
   Record.push_back(buf.str());

   pthread_mutex_unlock(&decompress_mutex);
   sem_post(&bat_sem);
  }
}
}
void * Read_Thread(void *arg)
{
sem_wait(&bat_sem);
while (true)
{
  int count=Record.size();
  cout << "大小:" << count << endl;
  //for (int i=1;i<=count;i++)
  //{
   pthread_mutex_lock(&decompress_mutex);
   vector<string>::iterator it=Record.begin();
   cout << "TEST:" << (*it) << endl;
   Record.erase(it);
   //it++;
   pthread_mutex_unlock(&decompress_mutex);
  //}
  sem_wait(&bat_sem);
}
}