Windows 純 C/C++ 使用 pthread 函式庫實作thread(執行緒)
Windows 純 C/C++ 使用 pthread 函式庫實作thread(執行緒)
資料來源:http://www.allenworkspace.net/attachments/article/6/Pthread%20in%20Windows%20%E6%95%99%E5%AD%B8.pdf
GitHub:https://github.com/jash-git/cpp_pthread
#include <iostream>
#include “pthread.h”
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <windows.h>//#include <unistd.h>//Sleep(WINDOWS) vs sleep(LINUX)
using namespace std;
#define MAX 20
/* LINUX C的 jash_thread 轉WINDOWS */
pthread_t thread[4];
pthread_mutex_t mut;
int number;
int i;
void *thread1(void *p)
{
printf (“thread1 : I’m thread 1\n”);
for (i = 0; i < MAX; i++)
{
printf(“thread1 : %d\n”,i);
pthread_mutex_lock(&mut);
if(i<MAX)
{
number++;
printf(“thread1 : number = %d\n”,number);
}
pthread_mutex_unlock(&mut);
Sleep( 30 );//sleep(1);
}
printf(“thread1 :主函數在等我完成任務嗎?\n”);
pthread_exit(NULL);
}
void *thread2(void *p)
{
printf(“thread2 : I’m thread 2\n”);
for (i = 0; i < MAX; i++)
{
printf(“thread2 : %d\n”,i);
pthread_mutex_lock(&mut);
if(i<MAX)
{
number++;
printf(“thread2 : number = %d\n”,number);
}
pthread_mutex_unlock(&mut);
Sleep( 30 );//sleep(1);
}
printf(“thread2 :主函數在等我完成任務嗎?\n”);
pthread_exit(NULL);
}
void *thread3(void *p)
{
printf(“thread3 : I’m thread 3\n”);
for (i = 0; i < MAX; i++)
{
printf(“thread3 : %d\n”,i);
pthread_mutex_lock(&mut);
if(i<MAX)
{
number++;
printf(“thread3 : number = %d\n”,number);
}
pthread_mutex_unlock(&mut);
Sleep( 30 );//sleep(1);
}
printf(“thread3 :主函數在等我完成任務嗎?\n”);
pthread_exit(NULL);
}
void *thread4(void *p)
{
printf(“thread4 : I’m thread 4\n”);
for (i = 0; i < MAX; i++)
{
printf(“thread4 : %d\n”,i);
pthread_mutex_lock(&mut);
if(i<MAX)
{
number++;
printf(“thread4 : number = %d\n”,number);
}
pthread_mutex_unlock(&mut);
Sleep( 30 );//sleep(1);
}
printf(“thread4 :主函數在等我完成任務嗎?\n”);
pthread_exit(NULL);
}
void thread_create(void)
{
int temp;
memset(&thread, 0, sizeof(thread)); //comment1
/*創建線程*/
if((temp = pthread_create(&thread[0], NULL, thread1, NULL)) != 0) //comment2
{
printf(“線程1創建失敗!\n”);
}
else
{
printf(“線程1被創建\n”);
}
if((temp = pthread_create(&thread[1], NULL, thread2, NULL)) != 0) //comment3
{
printf(“線程2創建失敗”);
}
else
{
printf(“線程2被創建\n”);
}
if((temp = pthread_create(&thread[2], NULL, thread3, NULL)) != 0) //comment3
{
printf(“線程3創建失敗”);
}
else
{
printf(“線程3被創建\n”);
}
if((temp = pthread_create(&thread[3], NULL, thread4, NULL)) != 0) //comment3
{
printf(“線程4創建失敗”);
}
else
{
printf(“線程4被創建\n”);
}
}
void Pause()
{
printf(“Press Enter key to continue…”);
fgetc(stdin);
}
void thread_wait(void)
{
/*等待線程結束*/
for(int i=0;i<4;i++)
{
pthread_join(thread[i],NULL);
printf(“線程%d已經結束\n”,i);
}
}
int main()
{
number=0;
setlocale(LC_ALL,”Chinese_Taiwan.950″);
/*用默認屬性初始化互斥鎖*/
pthread_mutex_init(&mut,NULL);
printf(“我是主函數哦,我正在創建線程,呵呵\n”);
thread_create();
printf(“我是主函數哦,我正在等待線程完成任務阿,呵呵\n”);
thread_wait();
Pause();
return 0;
}