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| author | Mike Frysinger <vapier@gentoo.org> | 2006-01-31 05:05:15 +0000 | 
|---|---|---|
| committer | Mike Frysinger <vapier@gentoo.org> | 2006-01-31 05:05:15 +0000 | 
| commit | cccc549ced940c85039c8ce263c8bb571f244afd (patch) | |
| tree | ef77a870db7211ad6f511867fc56ee1a1a8b4c18 /libpthread/linuxthreads/ptclock_settime.c | |
| parent | e73b1211737842732951f9b9049294ef732e1ef0 (diff) | |
| download | uClibc-alpine-cccc549ced940c85039c8ce263c8bb571f244afd.tar.bz2 uClibc-alpine-cccc549ced940c85039c8ce263c8bb571f244afd.tar.xz | |
initial import of latest linuxthreads
Diffstat (limited to 'libpthread/linuxthreads/ptclock_settime.c')
| -rw-r--r-- | libpthread/linuxthreads/ptclock_settime.c | 55 | 
1 files changed, 55 insertions, 0 deletions
| diff --git a/libpthread/linuxthreads/ptclock_settime.c b/libpthread/linuxthreads/ptclock_settime.c new file mode 100644 index 000000000..a4f218c77 --- /dev/null +++ b/libpthread/linuxthreads/ptclock_settime.c @@ -0,0 +1,55 @@ +/* Copyright (C) 2001, 2004 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; see the file COPYING.LIB.  If not, +   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, +   Boston, MA 02111-1307, USA.  */ + +#include <errno.h> +#include <time.h> +#include <libc-internal.h> +#include "internals.h" +#include "spinlock.h" + + +#if HP_TIMING_AVAIL +int +__pthread_clock_settime (clockid_t clock_id, hp_timing_t offset) +{ +  pthread_descr self = thread_self (); +  pthread_t thread = ((unsigned int) clock_id) >> CLOCK_IDFIELD_SIZE; +  const unsigned int mask = ~0U >> CLOCK_IDFIELD_SIZE; + +  if (thread == 0 || (THREAD_GETMEM (self, p_tid) & mask) == thread) +    /* Our own clock.  */ +    THREAD_SETMEM (self, p_cpuclock_offset, offset); +  else +    { +      pthread_descr th; +      pthread_handle handle = thread_handle (thread); +      __pthread_lock (&handle->h_lock, NULL); +      th = handle->h_descr; +      if (th == NULL || (th->p_tid & mask) != thread || th->p_terminated) +	{ +	  __pthread_unlock (&handle->h_lock); +	  __set_errno (EINVAL); +	  return -1; +	} +      th->p_cpuclock_offset = offset; +      __pthread_unlock (&handle->h_lock); +   } + +  return 0; +} +#endif | 
