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Man Pages


Manual Reference Pages  -  CLOCK_GETCPUCLOCKID (3)

NAME

clock_getcpuclockid - access a process CPU-time clock

CONTENTS

Library
Synopsis
Description
Return Values
Errors
See Also
Standards
History
Authors

LIBRARY


.Lb libc

SYNOPSIS


.In time.h int clock_getcpuclockid pid_t pid clockid_t *clock_id

DESCRIPTION

The clock_getcpuclockid returns the clock ID of the CPU-time clock of the process specified by pid. If the process described by pid exists and the calling process has permission, the clock ID of this clock will be returned in clock_id.

If pid is zero, the clock_getcpuclockid function returns the clock ID of the CPU-time clock of the process making the call, in clock_id.

RETURN VALUES

Upon successful completion, clock_getcpuclockid returns zero; otherwise, an error number is returned to indicate the error.

ERRORS

The clock_getcpuclockid() function will fail if:
[EPERM]
  The requesting process does not have permission to access the CPU-time clock for the process.
[ESRCH]
  No process can be found corresponding to the process specified by pid.

SEE ALSO

clock_gettime(2)

STANDARDS

The clock_getcpuclockid function conform to -p1003.1-2001.

HISTORY

The clock_getcpuclockid function first appeared in
.Fx 10.0 .

AUTHORS


.An David Xu Aq davidxu@FreeBSD.org
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