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bfff8b1b | 1 | /* Copyright (C) 2003-2017 Free Software Foundation, Inc. |
ad0e8eb0 UD |
2 | This file is part of the GNU C Library. |
3 | ||
4 | The GNU C Library is free software; you can redistribute it and/or | |
5 | modify it under the terms of the GNU Lesser General Public | |
6 | License as published by the Free Software Foundation; either | |
7 | version 2.1 of the License, or (at your option) any later version. | |
8 | ||
9 | The GNU C Library is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
12 | Lesser General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU Lesser General Public | |
59ba27a6 PE |
15 | License along with the GNU C Library; if not, see |
16 | <http://www.gnu.org/licenses/>. */ | |
ad0e8eb0 UD |
17 | |
18 | #include <time.h> | |
2f4f3bd4 | 19 | #include <errno.h> |
ad0e8eb0 | 20 | |
7a114794 | 21 | #include <sysdep-cancel.h> |
2f4f3bd4 | 22 | #include "kernel-posix-cpu-timers.h" |
ad0e8eb0 UD |
23 | |
24 | ||
ad0e8eb0 UD |
25 | /* We can simply use the syscall. The CPU clocks are not supported |
26 | with this function. */ | |
27 | int | |
89fb6835 SP |
28 | __clock_nanosleep (clockid_t clock_id, int flags, const struct timespec *req, |
29 | struct timespec *rem) | |
ad0e8eb0 UD |
30 | { |
31 | INTERNAL_SYSCALL_DECL (err); | |
32 | int r; | |
33 | ||
2f4f3bd4 RM |
34 | if (clock_id == CLOCK_THREAD_CPUTIME_ID) |
35 | return EINVAL; | |
36 | if (clock_id == CLOCK_PROCESS_CPUTIME_ID) | |
37 | clock_id = MAKE_PROCESS_CPUCLOCK (0, CPUCLOCK_SCHED); | |
38 | ||
7a114794 UD |
39 | if (SINGLE_THREAD_P) |
40 | r = INTERNAL_SYSCALL (clock_nanosleep, err, 4, clock_id, flags, req, rem); | |
41 | else | |
42 | { | |
43 | int oldstate = LIBC_CANCEL_ASYNC (); | |
44 | ||
45 | r = INTERNAL_SYSCALL (clock_nanosleep, err, 4, clock_id, flags, req, | |
46 | rem); | |
47 | ||
48 | LIBC_CANCEL_RESET (oldstate); | |
49 | } | |
50 | ||
ad0e8eb0 UD |
51 | return (INTERNAL_SYSCALL_ERROR_P (r, err) |
52 | ? INTERNAL_SYSCALL_ERRNO (r, err) : 0); | |
53 | } | |
89fb6835 | 54 | weak_alias (__clock_nanosleep, clock_nanosleep) |