| /* Copyright (C) 2007-2018 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 <signal.h> |
| #include <unistd.h> |
| #include <sys/epoll.h> |
| |
| #include <sysdep-cancel.h> |
| #include <sys/syscall.h> |
| |
| #ifdef __NR_epoll_pwait |
| |
| /* Wait for events on an epoll instance "epfd". Returns the number of |
| triggered events returned in "events" buffer. Or -1 in case of |
| error with the "errno" variable set to the specific error code. The |
| "events" parameter is a buffer that will contain triggered |
| events. The "maxevents" is the maximum number of events to be |
| returned ( usually size of "events" ). The "timeout" parameter |
| specifies the maximum wait time in milliseconds (-1 == infinite). |
| The thread's signal mask is temporarily and atomically replaced with |
| the one provided as parameter. */ |
| |
| int epoll_pwait (int epfd, struct epoll_event *events, |
| int maxevents, int timeout, |
| const sigset_t *set) |
| { |
| return SYSCALL_CANCEL (epoll_pwait, epfd, events, maxevents, |
| timeout, set, _NSIG / 8); |
| } |
| |
| #else |
| |
| int epoll_pwait (int epfd, struct epoll_event *events, |
| int maxevents, int timeout, |
| const sigset_t *set) |
| { |
| __set_errno (ENOSYS); |
| return -1; |
| } |
| stub_warning (epoll_pwait) |
| |
| #endif |
| |
| libc_hidden_def (epoll_pwait) |