Small optimization of alloca handling.
[glibc.git] / rt / clock_nanosleep.c
blobcff1c2570a91fc86cbcae48f209e403c52ed0733
1 /* High-resolution sleep with the specified clock. Stub version.
2 Copyright (C) 2000 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
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.
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.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, write to the Free
17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
18 02111-1307 USA. */
20 #include <errno.h>
21 #include <sys/time.h>
24 int
25 clock_nanosleep (clockid_t clock_id, int flags, const struct timespec *req,
26 struct timespec *rem)
28 if (__builtin_expect (req->tv_nsec, 0) < 0
29 || __builtin_expect (req->tv_nsec, 0) >= 1000000000)
30 return EINVAL;
32 if (flags != TIMER_ABSTIME && flags != 0)
33 return EINVAL;
35 /* Not implemented. */
36 return ENOSYS;
38 stub_warning (clock_nanosleep)
39 #include <stub-tag.h>