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/* SPDX-License-Identifier: LGPL-2.1 OR MIT */
/*
* poll definitions for NOLIBC
* Copyright (C) 2017-2021 Willy Tarreau <w@1wt.eu>
*/
/* make sure to include all global symbols */
#include "nolibc.h"
#ifndef _NOLIBC_POLL_H
#define _NOLIBC_POLL_H
#include "arch.h"
#include "sys.h"
#include <linux/poll.h>
#include <linux/time.h>
/*
* int poll(struct pollfd *fds, int nfds, int timeout);
*/
static __attribute__((unused))
int sys_poll(struct pollfd *fds, int nfds, int timeout)
{
#if defined(__NR_ppoll)
struct timespec t;
if (timeout >= 0) {
t.tv_sec = timeout / 1000;
t.tv_nsec = (timeout % 1000) * 1000000;
}
return my_syscall5(__NR_ppoll, fds, nfds, (timeout >= 0) ? &t : NULL, NULL, 0);
#elif defined(__NR_ppoll_time64)
struct __kernel_timespec t;
if (timeout >= 0) {
t.tv_sec = timeout / 1000;
t.tv_nsec = (timeout % 1000) * 1000000;
}
return my_syscall5(__NR_ppoll_time64, fds, nfds, (timeout >= 0) ? &t : NULL, NULL, 0);
#elif defined(__NR_poll)
return my_syscall3(__NR_poll, fds, nfds, timeout);
#else
return __nolibc_enosys(__func__, fds, nfds, timeout);
#endif
}
static __attribute__((unused))
int poll(struct pollfd *fds, int nfds, int timeout)
{
return __sysret(sys_poll(fds, nfds, timeout));
}
#endif /* _NOLIBC_POLL_H */
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