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+'\" et
+.TH CLOCK_GETCPUCLOCKID "3P" 2013 "IEEE/The Open Group" "POSIX Programmer's Manual"
+.SH 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.
+
+.SH NAME
+clock_getcpuclockid
+\(em access a process CPU-time clock
+(\fBADVANCED REALTIME\fP)
+.SH SYNOPSIS
+.LP
+.nf
+#include <time.h>
+.P
+int clock_getcpuclockid(pid_t \fIpid\fP, clockid_t *\fIclock_id\fP);
+.fi
+.SH DESCRIPTION
+The
+\fIclock_getcpuclockid\fR()
+function shall return the clock ID of the CPU-time clock of the process
+specified by
+.IR pid .
+If the process described by
+.IR pid
+exists and the calling process has permission, the clock ID of this
+clock shall be returned in
+.IR clock_id .
+.P
+If
+.IR pid
+is zero, the
+\fIclock_getcpuclockid\fR()
+function shall return the clock ID of the CPU-time clock of the process
+making the call, in
+.IR clock_id .
+.P
+The conditions under which one process has permission to obtain the
+CPU-time clock ID of other processes are implementation-defined.
+.SH "RETURN VALUE"
+Upon successful completion,
+\fIclock_getcpuclockid\fR()
+shall return zero; otherwise, an error number shall be returned to
+indicate the error.
+.SH ERRORS
+The
+\fIclock_getcpuclockid\fR()
+function shall fail if:
+.TP
+.BR EPERM
+The requesting process does not have permission to access the CPU-time
+clock for the process.
+.P
+The
+\fIclock_getcpuclockid\fR()
+function may fail if:
+.TP
+.BR ESRCH
+No process can be found corresponding to the process specified by
+.IR pid .
+.LP
+.IR "The following sections are informative."
+.SH EXAMPLES
+None.
+.SH "APPLICATION USAGE"
+The
+\fIclock_getcpuclockid\fR()
+function is part of the Process CPU-Time Clocks option and need not be
+provided on all implementations.
+.SH RATIONALE
+None.
+.SH "FUTURE DIRECTIONS"
+None.
+.SH "SEE ALSO"
+.IR "\fIclock_getres\fR\^(\|)",
+.IR "\fItimer_create\fR\^(\|)"
+.P
+The Base Definitions volume of POSIX.1\(hy2008,
+.IR "\fB<time.h>\fP"
+.SH 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 .