/* pthread_getcpuclockid -- Get POSIX clockid_t for a pthread_t. Linux version Copyright (C) 2000-2013 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, see <http://www.gnu.org/licenses/>. */ #include <errno.h> #include <pthreadP.h> #include <sys/time.h> #include <tls.h> #include <kernel-features.h> #include <kernel-posix-cpu-timers.h> int pthread_getcpuclockid (threadid, clockid) pthread_t threadid; clockid_t *clockid; { struct pthread *pd = (struct pthread *) threadid; /* Make sure the descriptor is valid. */ if (INVALID_TD_P (pd)) /* Not a valid thread handle. */ return ESRCH; /* The clockid_t value is a simple computation from the TID. */ const clockid_t tidclock = MAKE_THREAD_CPUCLOCK (pd->tid, CPUCLOCK_SCHED); *clockid = tidclock; return 0; }