我有一个线程,我希望向其传递 3 个参数。所以,我把它们放在一个结构中,如下所示:
struct arg
{
time_t time1;
float name1;
time_t quantum1;
};
我通过以下方式传递参数:
arg arg1;
arg1.time1=(time_t)(int)job.peek(); //job.peek() was 3
cout<<"job time is "<<arg1.time1<<endl; //this output 3
arg1.name1=(float)(int)job.returnname(NULL); //job.returnname() was 1
cout<<"job name is "<<arg1.name1<<endl;// this output 1
arg1.quantum1=quantum; //quantum was 7
cout<<"quantum is "<<arg1.quantum1<<endl;//this output 7
pthread_create(&thread1, NULL, func3, (void*)(&arg1));
但是当我在线程本身的开头检查这些值时,它们被改变了。
void* timer(void *argum)
{
arg *arg1= (arg*)argum;
cout<<"PROCESS "<<arg1->name1<<" HAS ENTERED THE TIMER"<<endl; //this output arg1->name1 as 1.4013e-45
cout<<"Time remaining for process is "<<arg1->time1<<endl; //this output arg1->time1 as -1218381144
cout<<"quantum is "<<arg1->quantum1<<endl; //this output arg1->quantum1 as 5
}
谁能告诉我为什么会这样?
提前致谢!!