projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| d4697bc9 | 1 | /* Copyright (C) 2011-2014 Free Software Foundation, Inc. |
| a63c7fa1 CM |
2 | This file is part of the GNU C Library. |
| 3 | Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011. | |
| 4 | ||
| 5 | The GNU C Library is free software; you can redistribute it and/or | |
| 6 | modify it under the terms of the GNU Lesser General Public | |
| 7 | License as published by the Free Software Foundation; either | |
| 8 | version 2.1 of the License, or (at your option) any later version. | |
| 9 | ||
| 10 | The GNU C Library is distributed in the hope that it will be useful, | |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 | Lesser General Public License for more details. | |
| 14 | ||
| 15 | You should have received a copy of the GNU Lesser General Public | |
| ab84e3ff PE |
16 | License along with the GNU C Library. If not, see |
| 17 | <http://www.gnu.org/licenses/>. */ | |
| a63c7fa1 CM |
18 | |
| 19 | #include <errno.h> | |
| 20 | #include <sys/poll.h> | |
| 21 | ||
| 22 | #include <sysdep-cancel.h> | |
| 23 | #include <sys/syscall.h> | |
| 24 | ||
| 25 | #include <kernel-features.h> | |
| 26 | ||
| 27 | int | |
| 28 | __poll (struct pollfd *fds, nfds_t nfds, int timeout) | |
| 29 | { | |
| 30 | struct timespec timeout_ts; | |
| 31 | struct timespec *timeout_ts_p = NULL; | |
| 32 | ||
| 33 | if (timeout >= 0) | |
| 34 | { | |
| 35 | timeout_ts.tv_sec = timeout / 1000; | |
| 36 | timeout_ts.tv_nsec = (timeout % 1000) * 1000000; | |
| 37 | timeout_ts_p = &timeout_ts; | |
| 38 | } | |
| 39 | ||
| 40 | if (SINGLE_THREAD_P) | |
| 41 | return INLINE_SYSCALL (ppoll, 5, fds, nfds, timeout_ts_p, NULL, 0); | |
| 42 | ||
| 43 | int oldtype = LIBC_CANCEL_ASYNC (); | |
| 44 | ||
| 45 | int result = INLINE_SYSCALL (ppoll, 5, fds, nfds, timeout_ts_p, NULL, 0); | |
| 46 | ||
| 47 | LIBC_CANCEL_RESET (oldtype); | |
| 48 | ||
| 49 | return result; | |
| 50 | } | |
| 51 | libc_hidden_def (__poll) | |
| 52 | weak_alias (__poll, poll) | |
| 53 | strong_alias (__poll, __libc_poll) |