sys/times.h - file access and modification times structure
The <sys/times.h> header shall define the structure tms, which is
returned by times() and includes at least the following members:
clock_t tms_utime User CPU time.
clock_t tms_stime System CPU time.
clock_t tms_cutime User CPU time of terminated child processes.
clock_t tms_cstime System CPU time of terminated child processes.
The clock_t type shall be defined as described in <sys/types.h> .
The following shall be declared as a function and may also be defined
as a macro. A function prototype shall be provided.
clock_t times(struct tms *);
The following sections are informative.
<sys/types.h> , the System Interfaces volume of IEEE Std 1003.1-2001,
Portions of this text are reprinted and reproduced in electronic form
from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
-- Portable Operating System Interface (POSIX), The Open Group Base
Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
Electrical and Electronics Engineers, Inc and The Open Group. 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.opengroup.org/unix/online.html .