C语言之pthread

#include
#include
#define NUM_THREADS 5
void* thread_printf(void* arg){
	printf("xxx-------->line = %d, data = %dn",__LINE__,*(int*)arg);
	return NULL;
}

int main(int argc, char* argv[]){
	pthread_t thread[NUM_THREADS];
	//1.数据已经乱掉
	for (int i = 0; i < NUM_THREADS; i++)
		pthread_create(&(thread[i]), NULL, thread_printf,&i);

	for(int i = 0; i < NUM_THREADS; i++)
		pthread_join(thread[i], NULL);
    //测试线程与主进程竞争顺序
	for(int i = 0; i < NUM_THREADS; i++)
		printf("xxx-------->line = %d, i = %dn",__LINE__,i);


	//2.数据征程顺序,pthread_join()调用顺序问题
	for (int i = 0; i < NUM_THREADS; i++){
		pthread_create(&(thread[i]), NULL, thread_printf,&i);
		pthread_join(thread[i], NULL);
	}
    //测试线程与主进程竞争顺序
    for(int i = 0; i < NUM_THREADS; i++)
		printf("xxx-------->line = %d, i = %dn",__LINE__,i);

	return 0;
}