* Copyright 2018, Xiang Fan, sfanxiang@gmail.com.
* Distributed under the terms of the MIT License.
*/
#include <stdio.h>
#include <poll.h>
int main()
{
FILE* f = fopen("/dev/null", "w");
printf("f=%p\n", f);
int fd = fileno(f);
printf("fd=%d\n", fd);
struct pollfd pfd;
pfd.fd = fd;
pfd.events = POLLOUT;
pfd.revents = 0;
int rv = poll(&pfd, 1, -1);
printf("rv=%d\n", rv);
if (rv <= 0)
return 1;
printf("events=%08x revents=%08x\n", pfd.events, pfd.revents);
if (pfd.revents != POLLOUT)
return 2;
return 0;
}
