Section: POSIX Programmer's Manual (3P)
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.
--- access a thread CPU-time clock
(ADVANCED REALTIME THREADS
int pthread_getcpuclockid(pthread_t thread_id, clockid_t *clock_id);
function shall return in
the clock ID of the CPU-time clock of the thread specified by
if the thread specified by
Upon successful completion,
shall return zero; otherwise, an error number shall be returned to
indicate the error.
No errors are defined.
The following sections are informative.
function is part of the Thread CPU-Time Clocks option and need not be
provided on all implementations.
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
The Base Definitions volume of POSIX.1-2017,
Portions of this text are reprinted and reproduced in electronic form
from IEEE Std 1003.1-2017, Standard for Information Technology
-- Portable Operating System Interface (POSIX), The Open Group Base
Specifications Issue 7, 2018 Edition,
Copyright (C) 2018 by the Institute of
Electrical and Electronics Engineers, Inc and The Open Group.
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
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