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Diffstat (limited to 'src/misc/util/cpu_time.c')
| -rw-r--r-- | src/misc/util/cpu_time.c | 128 |
1 files changed, 0 insertions, 128 deletions
diff --git a/src/misc/util/cpu_time.c b/src/misc/util/cpu_time.c deleted file mode 100644 index d264bdc9..00000000 --- a/src/misc/util/cpu_time.c +++ /dev/null @@ -1,128 +0,0 @@ -/**CFile*********************************************************************** - - FileName [ cpu_time.c ] - - PackageName [ util ] - - Synopsis [ System time calls ] - - Description [ The problem is that all unix systems have a different notion - of how fast time goes (i.e., the units returned by). This - returns a consistent result. ] - - Author [ Stephen Edwards <sedwards@eecs.berkeley.edu> and others ] - - Copyright [Copyright (c) 1994-1996 The Regents of the Univ. of California. - All rights reserved. - - Permission is hereby granted, without written agreement and without license - or royalty fees, to use, copy, modify, and distribute this software and its - documentation for any purpose, provided that the above copyright notice and - the following two paragraphs appear in all copies of this software. - - IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR - DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT - OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF - CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - - THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES, - INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND - FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS ON AN - "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATION TO PROVIDE - MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.] - -******************************************************************************/ - -#include "util.h" - -#if HAVE_SYS_TYPES_H -# include<sys/types.h> -#endif - -#if HAVE_SYS_TIMES_H -# include<sys/times.h> -#endif - -/**AutomaticStart*************************************************************/ - -/*---------------------------------------------------------------------------*/ -/* Static function prototypes */ -/*---------------------------------------------------------------------------*/ - -/**AutomaticEnd***************************************************************/ - -/**Function******************************************************************** - - Synopsis [ Return elapsed time in milliseconds ] - - Description [ Return a long which represents the elapsed time in - milliseconds since some constant reference. <P> - - There are two possibilities: - <OL> - <LI> The system is non-POSIX compliant, so unistd.h - and hence sysconf() can't tell us the clock tick - speed. At this point, we have to resort to - using the user-settable CLOCK_RESOLUTION definition - to get the right speed - <LI> The system is POSIX-compliant. unistd.h gives - us sysconf(), which tells us the clock rate. - </OL> - ] - - SideEffects [ none ] - -******************************************************************************/ - -/* -long -util_cpu_time() -{ - long t = 0; - -#if HAVE_SYSCONF == 1 - - // Code for POSIX systems - - struct tms buffer; - long nticks; // number of clock ticks per second - - nticks = sysconf(_SC_CLK_TCK); - times(&buffer); - t = buffer.tms_utime * (1000.0/nticks); - -#else -# ifndef vms - - // Code for non-POSIX systems - - struct tms buffer; - - time(&buffer); - t = buffer.tms_utime * 1000.0 / CLOCK_RESOLUTION; - -# else - - // Code for VMS (?) - - struct {int p1, p2, p3, p4;} buffer; - static long ref_time; - times(&buffer); - t = buffer.p1 * 10; - if (ref_time == 0) - ref_time = t; - t = t - ref_time; - -# endif // vms -#endif // _POSIX_VERSION - - return t; -} -*/ - - -long -util_cpu_time() -{ - return clock(); -} |