44 lines
809 B
C++
44 lines
809 B
C++
#pragma once
|
|
|
|
#include <thread>
|
|
#include <atomic>
|
|
|
|
#include <stdlib.h>
|
|
#include <poll.h>
|
|
#include <sys/types.h>
|
|
#include <unistd.h>
|
|
#include <signal.h>
|
|
|
|
namespace nix {
|
|
|
|
|
|
class MonitorFdHup
|
|
{
|
|
private:
|
|
std::thread thread;
|
|
|
|
public:
|
|
MonitorFdHup(int fd)
|
|
{
|
|
thread = std::thread([fd]() {
|
|
/* Wait indefinitely until a POLLHUP occurs. */
|
|
struct pollfd fds[1];
|
|
fds[0].fd = fd;
|
|
fds[0].events = 0;
|
|
if (poll(fds, 1, -1) == -1) abort(); // can't happen
|
|
assert(fds[0].revents & POLLHUP);
|
|
/* We got POLLHUP, so send an INT signal to the main thread. */
|
|
kill(getpid(), SIGINT);
|
|
});
|
|
};
|
|
|
|
~MonitorFdHup()
|
|
{
|
|
pthread_cancel(thread.native_handle());
|
|
thread.join();
|
|
}
|
|
};
|
|
|
|
|
|
}
|