1PTHREAD_GETCPUCLOCKID(3P)  POSIX Programmer's Manual PTHREAD_GETCPUCLOCKID(3P)
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PROLOG

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

12       pthread_getcpuclockid — access a thread CPU-time clock (ADVANCED  REAL‐
13       TIME THREADS)
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SYNOPSIS

16       #include <pthread.h>
17       #include <time.h>
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19       int pthread_getcpuclockid(pthread_t thread_id, clockid_t *clock_id);
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DESCRIPTION

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

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

31       No errors are defined.
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33       The following sections are informative.
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EXAMPLES

36       None.
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APPLICATION USAGE

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

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

48       None.
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SEE ALSO

51       clock_getcpuclockid(), clock_getres(), timer_create()
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53       The Base Definitions volume of POSIX.1‐2017, <pthread.h>, <time.h>
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56       Portions  of  this text are reprinted and reproduced in electronic form
57       from IEEE Std 1003.1-2017, Standard for Information Technology --  Por‐
58       table  Operating System Interface (POSIX), The Open Group Base Specifi‐
59       cations Issue 7, 2018 Edition, Copyright (C) 2018 by the  Institute  of
60       Electrical  and  Electronics Engineers, Inc and The Open Group.  In the
61       event of any discrepancy between this version and the original IEEE and
62       The  Open Group Standard, the original IEEE and The Open Group Standard
63       is the referee document. The original Standard can be  obtained  online
64       at http://www.opengroup.org/unix/online.html .
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66       Any  typographical  or  formatting  errors that appear in this page are
67       most likely to have been introduced during the conversion of the source
68       files  to  man page format. To report such errors, see https://www.ker‐
69       nel.org/doc/man-pages/reporting_bugs.html .
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73IEEE/The Open Group                  2017            PTHREAD_GETCPUCLOCKID(3P)
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