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glibc  2.9
times.h
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00001 /* Copyright (C) 1991, 1992, 1996, 1998, 1999 Free Software Foundation, Inc.
00002    This file is part of the GNU C Library.
00003 
00004    The GNU C Library is free software; you can redistribute it and/or
00005    modify it under the terms of the GNU Lesser General Public
00006    License as published by the Free Software Foundation; either
00007    version 2.1 of the License, or (at your option) any later version.
00008 
00009    The GNU C Library is distributed in the hope that it will be useful,
00010    but WITHOUT ANY WARRANTY; without even the implied warranty of
00011    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012    Lesser General Public License for more details.
00013 
00014    You should have received a copy of the GNU Lesser General Public
00015    License along with the GNU C Library; if not, write to the Free
00016    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
00017    02111-1307 USA.  */
00018 
00019 /*
00020  *     POSIX Standard: 4.5.2 Process Times       <sys/times.h>
00021  */
00022 
00023 #ifndef       _SYS_TIMES_H
00024 #define       _SYS_TIMES_H  1
00025 
00026 #include <features.h>
00027 
00028 #define       __need_clock_t
00029 #include <time.h>
00030 
00031 
00032 __BEGIN_DECLS
00033 
00034 /* Structure describing CPU time used by a process and its children.  */
00035 struct tms
00036   {
00037     clock_t tms_utime;             /* User CPU time.  */
00038     clock_t tms_stime;             /* System CPU time.  */
00039 
00040     clock_t tms_cutime;            /* User CPU time of dead children.  */
00041     clock_t tms_cstime;            /* System CPU time of dead children.  */
00042   };
00043 
00044 
00045 /* Store the CPU time used by this process and all its
00046    dead children (and their dead children) in BUFFER.
00047    Return the elapsed real time, or (clock_t) -1 for errors.
00048    All times are in CLK_TCKths of a second.  */
00049 extern clock_t times (struct tms *__buffer) __THROW;
00050 
00051 __END_DECLS
00052 
00053 #endif /* sys/times.h       */