C语言使用pthread多线程编程(windows系统)一

#include <stdio.h>  
#include <stdlib.h>  
#include <pthread.h>  
#include <windows.h>  
  
int  piao = 100;  
  
pthread_mutex_t mut;  
   
void* tprocess1(void* args){  
   int a = 0;  
       while(true){  
           pthread_mutex_lock(&mut);  
           if(piao>0){  
            Sleep(1);  
            piao--;  
            printf("窗口1----------------还剩%d张票\n",piao);  
           }else{  
            a = 1;  
           }  
          pthread_mutex_unlock(&mut);  
           if(a == 1) {  
            break;  
           }  
        }    
          
    
       return NULL;  
}  
  
void* tprocess2(void* args){  
     int a = 0;  
       while(true){  
           pthread_mutex_lock(&mut);  
           if(piao>0){  
            Sleep(1);  
           piao--;  
        printf("窗口2----------------还剩%d张票\n",piao);  
           }else{  
            a = 1;  
           }  
          pthread_mutex_unlock(&mut);  
           if(a == 1) {  
            break;  
           }  
        }    
          
    
       return NULL;  
}  
  
void* tprocess3(void* args){  
   int a = 0;  
       while(true){  
           pthread_mutex_lock(&mut);  
           if(piao>0){  
       Sleep(1);  
             piao--;  
         
        printf("窗口3----------------还剩%d张票\n",piao);  
           }else{  
            a = 1;  
           }  
          pthread_mutex_unlock(&mut);  
           if(a == 1) {  
            break;  
           }  
        }    
          
    
       return NULL;  
}  
  
void* tprocess4(void* args){  
       int a = 0;  
       while(true){  
           pthread_mutex_lock(&mut);  
           if(piao>0){  
       Sleep(1);  
        
                   piao--;  
         
        printf("窗口4----------------还剩%d张票\n",piao);  
           }else{  
            a = 1;  
           }  
          pthread_mutex_unlock(&mut);  
           if(a == 1) {  
            break;  
           }  
        }    
          
    
       return NULL;  
}  
  
int main(){  
  pthread_mutex_init(&mut,NULL);  
  pthread_t t1;  
  pthread_t t2;  
  pthread_t t3;  
  pthread_t t4;  
  pthread_create(&t4,NULL,tprocess4,NULL);  
  pthread_create(&t1,NULL,tprocess1,NULL);  
  pthread_create(&t2,NULL,tprocess2,NULL);  
  pthread_create(&t3,NULL,tprocess3,NULL);  
  Sleep(5000);  
  return 0;  
}