Professional Multicore Programming: Design and Implementation for C++ Developers

Name

NAME

pthread_getcpuclockid — access a thread CPU-time clock (ADVANCED REALTIME THREADS)

SYNOPSIS

THR TCT #include <pthread.h>

    #include <time.h>
    int pthread_getcpuclockid(pthread_t thread_id, clockid_t *clock_id);

DESCRIPTION

The pthread_getcpuclockid() function shall return in clock_id the clock ID of the CPU-time clock of the thread specified by thread_id, if the thread specified by thread_id exists.

RETURN VALUE

Upon successful completion, pthread_getcpuclockid() shall return zero; otherwise, an error number shall be returned to indicate the error.

ERRORS

The pthread_getcpuclockid() function may fail if:

[ESRCH]

The value specified by thread-id does not refer to an existing thread.

EXAMPLES

None.

APPLICATION USAGE

The pthread_getcpuclockid() function is part of the Thread CPU-Time Clocks option and need not be provided on all implementations.

RATIONALE

None.

FUTURE DIRECTIONS

None.

SEE ALSO

clock_getcpuclockid(), clock_getres(), timer-create(), the Base Definitions volume of IEEE Std 1003.1-2001, <pthread.h>, <time.h>

CHANGE HISTORY

First released in Issue 6. Derived from IEEE Std 1003.1d-1999.

In the SYNOPSIS, the inclusion of <sys/types.h> is no longer required.