在 system() 执行时取消 CTRL+C [C++]

Cancel CTRL+C while system() is executing [C++]

当我正在执行 system() 时,如何让 CTRL+C 不执行任何操作。

这是我的代码:

#include <iostream>
#include <functional>
#include <signal.h>
void noCTRLCCancel(int sig) {
    signal(SIGINT, noCTRLCCancel);
    std::cout << "CTRL+C pressed, not shutting down." << std::endl;
}
inline void command() {
    system("some command"); // When CTRL+C is pressed, it cancels the command, but how to cancel CTRL+C and do nothing?
}
int main(int argc, char **argv) {
    signal(SIGINT, noCTRLCCancel);
    command();
}

您可以使用 SIG_IGN 忽略特定信号并使用 SIG_DFL 将其设置回默认值。

void command() {
    std::signal(SIGINT, SIG_IGN);
    system("some command");
    std::signal(SIGINT, SIG_DFL);
}

https://en.cppreference.com/w/cpp/utility/program/signal