C++程序  |  49行  |  805 B

#pragma once

#ifdef __cplusplus
extern "C" {
#endif

#include <features.h>

#include <bits/poll.h>

#define POLLIN 0x001
#define POLLPRI 0x002
#define POLLOUT 0x004
#define POLLERR 0x008
#define POLLHUP 0x010
#define POLLNVAL 0x020
#define POLLRDNORM 0x040
#define POLLRDBAND 0x080
#ifndef POLLWRNORM
#define POLLWRNORM 0x100
#define POLLWRBAND 0x200
#endif
#ifndef POLLMSG
#define POLLMSG 0x400
#define POLLRDHUP 0x2000
#endif

typedef unsigned long nfds_t;

struct pollfd {
    int fd;
    short events;
    short revents;
};

int poll(struct pollfd*, nfds_t, int);

#ifdef _GNU_SOURCE
#define __NEED_time_t
#define __NEED_struct_timespec
#define __NEED_sigset_t
#include <bits/alltypes.h>
int ppoll(struct pollfd*, nfds_t, const struct timespec*, const sigset_t*);
#endif

#ifdef __cplusplus
}
#endif