ARTS-S C语言主线程获取子线程返回值

#include<stdio.h>
#include<stdlib.h>
#include <pthread.h>typedef struct {
int stu_num;
char* stu_name;
}Student;void *thr_fn1(void *arg) {
Student* student = (Student*)malloc(sizeof(Student));
student->stu_num = 1;
student->stu_name = "name1";
return((void *)student);
}void *thr_fn2(void *arg) {printf("thread 2 exiting\n");
Student* student = (Student*)malloc(sizeof(Student));
student->stu_num = 2;
student->stu_name = "name2";
return((void *)student);
}int main(void) {
int err;
pthread_t tid1, tid2;
void *tret;
err = pthread_create(&tid1, NULL, thr_fn1, NULL);
if (err != 0)
printf("can’t create thread 1:%d", err);
err = pthread_create(&tid2, NULL, thr_fn2, NULL);
if (err != 0)
printf("can’t create thread 2:%d", err);
err = pthread_join(tid1, &tret);
if (err != 0)
printf("can’t join with thread 1:%d", err); printf("thread 1 number=%d,name=%s\n", ((Student*)tret)->stu_num, ((Student*)tret)->stu_name);
err = pthread_join(tid2, &tret);
if (err != 0)
printf("can’t join with thread 2:%d", err);
printf("thread 2 number=%d,name=%s\n", ((Student*)tret)->stu_num, ((Student*)tret)->stu_name);
exit(0);
}
// gcc -Wall main1.c -lpthread -o demo


可用于主线程等子线程完成.