Timeline: Add missing include of unistd.h.
[nondaw.git] / nonlib / Block_Timer.H
blob006ce026cae4c7110f136bf3300511ef166d1ffd
2 /*******************************************************************************/
3 /* Copyright (C) 2010 Jonathan Moore Liles                                     */
4 /*                                                                             */
5 /* This program is free software; you can redistribute it and/or modify it     */
6 /* under the terms of the GNU General Public License as published by the       */
7 /* Free Software Foundation; either version 2 of the License, or (at your      */
8 /* option) any later version.                                                  */
9 /*                                                                             */
10 /* This program is distributed in the hope that it will be useful, but WITHOUT */
11 /* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or       */
12 /* FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for   */
13 /* more details.                                                               */
14 /*                                                                             */
15 /* You should have received a copy of the GNU General Public License along     */
16 /* with This program; see the file COPYING.  If not,write to the Free Software */
17 /* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
18 /*******************************************************************************/
20 #pragma once
21 #include <stdio.h>
22 #include <sys/time.h>
23 #include <sys/types.h>
24 #include <unistd.h>
25 #include <string.h>
27 class Block_Timer
30     unsigned long long ts;
31     const char *prefix;
33     unsigned long long tv_to_ts ( timeval *tv )
34         {
35             return tv->tv_sec * 1e6 + tv->tv_usec;
36         }
38 public:
40     Block_Timer ( const char *prefix )
41         {
42             this->prefix = prefix;
44             timeval tv;
46             gettimeofday( &tv, NULL );
48             ts = tv_to_ts( &tv );
49         }
51     ~Block_Timer ( )
52         {
53             timeval tv;
55             gettimeofday( &tv, NULL );
57             fprintf( stderr, "[%Lfms] %s\n", ((long double)tv_to_ts( &tv ) - ts ) / 1000, prefix );
58         }