NAME

pthread_getcpuclockid — get a clock measuring thread CPU time

SYNOPSIS

#include <pthread.h>

int
pthread_getcpuclockid(pthread_t thread, clockid_t *clock_id);

DESCRIPTION

The pthread_getcpuclockid() function allows the calling thread to get a clockid_t value that measures the time spent by CPUs running in user or kernel mode on behalf of the thread specified by thread.

RETURN VALUES

If successful, pthread_getcpuclockid() will return zero. Otherwise an error number will be returned to indicate the error.

ERRORS

pthread_getcpuclockid() will fail if:

[ESRCH]

thread is an invalid thread ID.

SEE ALSO

clock_gettime(2), clock_getcpuclockid(3)

STANDARDS

The pthread_getcpuclockid() function conforms to IEEE Std 1003.1-2008 (“POSIX.1”).

HISTORY

The pthread_getcpuclockid() function first appeared in IEEE Std 1003.1d-1999 (“POSIX.1d”) and has been available since OpenBSD 5.4.