函数：

线程：

int pthread_create(pthread_t *thread, const pthread_attr_t *attr, void *(*start_routine) (void *), void *arg);
int pthread_join(pthread_t thread, void **retval);
void pthread_exit(void *retval);

thread 新建线程的id；attr 新建线程的属性

start_routine 线程的入口函数；arg入口函数的参数； retval保存线程返回值

头文件：<pthread.h>

编译必须包含pthread库：gcc -pthread pthread.c -o pthread

返回值：成功：0

失败：错误码

互斥锁：

int  pthread_mutex_init(pthread_mutex_t  *mutex,  const  pthread_mutexattr_t *mutexattr);
int pthread_mutex_lock(pthread_mutex_t *mutex);
int pthread_mutex_unlock(pthread_mutex_t *mutex);

mutex 互斥锁指针； mutexattr属性
头文件：<pthread.h>

返回值：成功：0

失败：错误码

上代码：

#include <stdio.h>
#include <pthread.h>

pthread_t thread[2];

int number = 0;

pthread_mutex_t mut;

void worker1()
{
	printf("I'm worker1\n");
	
	for (int i = 0; i < 10; i++)
	{
		pthread_mutex_lock(&mut);

		number++;

		pthread_mutex_unlock(&mut);
		
		printf("worker number is%d\n", number);

		sleep(1);
	}

	pthread_exit(NULL);
}

void worker2()
{
	printf("I'm worker2\n");

	for (int i = 0; i < 10; i++)
	{
		pthread_mutex_lock(&mut);

		number++;

		pthread_mutex_unlock(&mut);
	
		printf("worker number is%d\n", number);

		sleep(1);
}

	pthread_exit(NULL);
}

int main()
{
	pthread_mutex_init(&mut, NULL);
	
	//1、创建工人1线程
	pthread_create(&thread[0], NULL, worker1, NULL);
	
	//2、创建工人2线程
	pthread_create(&thread[1], NULL, worker2, NULL);

	//3、等待工人1线程
	pthread_join(thread[0], NULL);

	//4、等待工人2线程
	pthread_join(thread[1], NULL);

	return 0;
}