线程pthread_mutex_init()锁的应用

#include <stdio.h>

#include <stdlib.h>

#include <pthread.h>

 

void *function(void *arg);

pthread_mutex_t mutex;

int counter = 0;

int main(int argc,char *argv[])

{

    int rc1,rc2;

     

    char *str1="wenhaoll";

    char *str2="linglong";

    pthread_t thread1,thread2;

 

    pthread_mutex_init(&mutex,NULL);

    if((rc1 = pthread_create(&thread1,NULL,function,str1)))

    {

        fprintf(stdout,"thread 1 create failed: %d\n",rc1);

    }

 

    if(rc2=pthread_create(&thread2,NULL,function,str2))

    {

        fprintf(stdout,"thread 2 create failed: %d\n",rc2);

    }

 

    pthread_join(thread1,NULL);

    pthread_join(thread2,NULL);

    return 0;

}

 

void *function(void *arg)

{

    char *m;

    m = (char *)arg;

    pthread_mutex_lock(&mutex);

    while(*m != '\0')

    {

        printf("%c",*m);

        fflush(stdout);

        m++;

        sleep(1);

    }

    printf("\n");

    pthread_mutex_unlock(&mutex);

}