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PROLOG
       This  manual  page  is part of the POSIX Programmer's Manual.  The Linux implementation of
       this interface may differ (consult the corresponding Linux  manual  page  for  details  of
       Linux behavior), or the interface may not be implemented on Linux.


NAME
       pthread_getcpuclockid — access a thread CPU-time clock (ADVANCED REALTIME THREADS)


SYNOPSIS
       #include <pthread.h>
       #include <time.h>

       int pthread_getcpuclockid(pthread_t thread_id, clockid_t *clock_id);


DESCRIPTION
       The pthread_getcpuclockid() function shall return in clock_id the clock ID of the CPU-time
       clock of the thread specified by thread_id, if the thread specified by thread_id exists.


RETURN VALUE
       Upon successful completion, pthread_getcpuclockid() shall return zero; otherwise, an error
       number shall be returned to indicate the error.


ERRORS
       No errors are defined.

       The following sections are informative.


EXAMPLES
       None.


APPLICATION USAGE
       The pthread_getcpuclockid() function is part of the Thread CPU-Time Clocks option and need
       not be provided on all implementations.


RATIONALE
       If an implementation detects use of a thread ID after the  end  of  its  lifetime,  it  is
       recommended that the function should fail and report an [ESRCH] error.


FUTURE DIRECTIONS
       None.


SEE ALSO
       clock_getcpuclockid(), clock_getres(), timer_create()

       The Base Definitions volume of POSIX.1‐2008, <pthread.h>, <time.h>


COPYRIGHT
       Portions  of  this  text  are  reprinted  and  reproduced in electronic form from IEEE Std
       1003.1, 2013 Edition, Standard for Information Technology  --  Portable  Operating  System
       Interface  (POSIX),  The Open Group Base Specifications Issue 7, Copyright (C) 2013 by the
       Institute of Electrical and Electronics Engineers, Inc  and  The  Open  Group.   (This  is
       POSIX.1-2008  with  the  2013  Technical  Corrigendum  1  applied.)  In  the  event of any
       discrepancy between this version and the original IEEE and The Open  Group  Standard,  the
       original  IEEE  and The Open Group Standard is the referee document. The original Standard
       can be obtained online at http://www.unix.org/online.html .

       Any typographical or formatting errors that appear in this page are most  likely  to  have
       been  introduced  during  the conversion of the source files to man page format. To report
       such errors, see https://www.kernel.org/doc/man-pages/reporting_bugs.html .