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clock_getcpuclockid(3c)

clock_getcpuclockid(3C)  Standard C Library Functions  clock_getcpuclockid(3C)

NAME
       clock_getcpuclockid - access a process CPU-time clock

SYNOPSIS
       #include <time.h>

       int clock_getcpuclockid(pid_t pid, clockid_t *clock_id);

DESCRIPTION
       The  clock_getcpuclockid()  function  shall  return the clock ID of the
       CPU-time clock of the process specified by  pid.  If  the  process  de‐
       scribed by pid exists and the calling process has permission, the clock
       ID  of  this  clock  shall be returned in clock_id. If pid is zero, the
       clock_getcpuclockid() function shall return the clock ID  of  the  CPU-
       time  clock  of the process making the call in clock_id. The conditions
       under which one process has permission to obtain the CPU-time clock  ID
       of other processes are implementation-defined.

RETURN VALUES
       On  successful completion, clock_getcpuclockid() shall return 0; other‐
       wise an error shall be 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.



       The clock_getcpuclockid() function may fail if:

       ESRCH    No process can be found corresponding to the process specified
                by pid.


ATTRIBUTES
       See attributes(7) for descriptions of the following attributes:

       tab()  box; cw(2.75i) |cw(2.75i) lw(2.75i) |lw(2.75i) ATTRIBUTE TYPEAT‐
       TRIBUTE VALUE _ Interface StabilityCommitted _ MT-LevelMT-Safe _  Stan‐
       dardSee standards(7).


SEE ALSO
       clock_getres(3C), timer_create(3C), attributes(7), standards(7)

HISTORY
       The clock_getcpuclockid() function was added in Oracle Solaris 11.4.7.

Oracle Solaris 11.4               13 Sep 2024          clock_getcpuclockid(3C)
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