diff options
Diffstat (limited to 'REORG.TODO/rt/clock_getcpuclockid.c')
-rw-r--r-- | REORG.TODO/rt/clock_getcpuclockid.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/REORG.TODO/rt/clock_getcpuclockid.c b/REORG.TODO/rt/clock_getcpuclockid.c new file mode 100644 index 0000000000..37e6a328a1 --- /dev/null +++ b/REORG.TODO/rt/clock_getcpuclockid.c @@ -0,0 +1,40 @@ +/* Get a clockid_t for the process CPU clock of a given process. Generic. + Copyright (C) 2000-2017 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; if not, see + <http://www.gnu.org/licenses/>. */ + +#include <errno.h> +#include <time.h> +#include <unistd.h> + +int +__clock_getcpuclockid (pid_t pid, clockid_t *clock_id) +{ + /* We don't allow any process ID but our own. */ + if (pid != 0 && pid != getpid ()) + return EPERM; + +#ifdef CLOCK_PROCESS_CPUTIME_ID + /* Store the number. */ + *clock_id = CLOCK_PROCESS_CPUTIME_ID; + + return 0; +#else + /* We don't have a timer for that. */ + return ENOENT; +#endif +} +weak_alias (__clock_getcpuclockid, clock_getcpuclockid) |