操作系统软中断实验

代码仅供参考

include
#include
#include
#include
int wait_flag;
void stop();
main(){
        int pid1,pid2;
        signal(3,stop);
        while((pid1=fork())== -1);
        if(pid1>0){
                while((pid2=fork())== -1);
                if(pid2>0){
                        wait_flag=1;
                        sleep(5);
                        kill(pid1,16);
                        kill(pid2,17);
                        wait(0);
                        wait(0);
                        printf("n Parent process is killed!!n");
                        return 0;
                }else{
                        wait_flag=1;
                        signal(17,stop);
                        printf("n Chile process 2 is killed bu parent!!n");
                        return 0;
                }
        }else{
                wait_flag=1;
                signal(16,stop);
                printf("n Chile process 1 is killed by parent!!n");
                return 0;
        }
}
void stop(){
        wait_flag=0;
}