在下面,子进程创建对象。它使用信号一定时间后自行终止:对象是否会被杀死?
#include <unistd.h>
#include <signal.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <stdlib.h>
#include <iostream>
using namespace std;
class Wut{
public:
Wut(){cout<<"obj being created" << endl;}
~Wut(){cout<<"obj being destroyeed" << endl;}
};
void alarmHandler(){
cout << "Alarm! Forcing child to kill itself" << endl;
kill(getpid(), SIGKILL);
}
int main(int argc, char* argv[]){
int status;
pid_t pid;
if((pid = fork()) == 0){
Wut hi;
signal(SIGALRM, (sighandler_t)alarmHandler);
alarm(1);
alarm(7);
sleep(10);
cout << "this will not get printed" << endl;
} else {
wait(&status);
cout << "Parent dies" << endl;
}
sleep(10);
return 0;
}
但我不知道这是否创建该对象被销毁正确,因为它永远不会调用析构函数。
也许不是“妥善”销毁,但他们都走了。您正在使用火箭筒,并询问目标是否被正确销毁。 – 2012-04-26 21:10:26