我有一个运行linux命令的C++代码,我想模拟分段错误,即SIGSEGV,同时通过C++代码执行C++命令。所以我的代码是这样的
int main(){
string cmd = "some linux command that should throw seg fault";
execute_linux_comand(cmd); // Want to simulate segfault coming while executing this command
}
我应该放什么"cmd“,这样它才能将SIGSEGV发送到通过调用该函数创建的子进程?
我想知道UNIX信号的安全性。
SIGKILL会扼杀这个过程。那么,当非根用户的进程向根用户的进程发送信号时会发生什么呢?这个过程还在执行信号处理程序吗?
我遵循公认的答案(gollum's),输入man capabilites,我发现了许多关于Linux内核的内容。来自man capabilities:
NAME
capabilities - overview of Linux capabilities
DESCRIPTION
For the purpose of performing permission checks, traditional UNIX
im
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <signal.h>
static void sigusr(int iSig) //SIGUSER are the user defined signals
{
if (iSig == SIGUSR1)
{
printf("Received SIGUSR1 signal, going to sleep for 2 secon
假设我有代码,比如:
from multiprocessing import Process
def pro_a():
#execute some code that runs a radio program
def pro_b():
#execute some code that keeps a GUI running
.
.
. #some code
if __name__ == '__main__':
Process(target=pro_a).start()
Process(target=pro_b).start()