| /* Linux poll implementation. |
| Copyright (C) 2017-2018 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library. If not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include <errno.h> |
| #include <sys/poll.h> |
| |
| #include <sysdep-cancel.h> |
| #include <sys/syscall.h> |
| |
| int |
| __poll (struct pollfd *fds, nfds_t nfds, int timeout) |
| { |
| #ifdef __NR_poll |
| return SYSCALL_CANCEL (poll, fds, nfds, timeout); |
| #else |
| struct timespec timeout_ts; |
| struct timespec *timeout_ts_p = NULL; |
| |
| if (timeout >= 0) |
| { |
| timeout_ts.tv_sec = timeout / 1000; |
| timeout_ts.tv_nsec = (timeout % 1000) * 1000000; |
| timeout_ts_p = &timeout_ts; |
| } |
| |
| return SYSCALL_CANCEL (ppoll, fds, nfds, timeout_ts_p, NULL, 0); |
| #endif |
| } |
| libc_hidden_def (__poll) |
| weak_alias (__poll, poll) |
| strong_alias (__poll, __libc_poll) |
