XrdSysTimer.hh

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00001 #ifndef __XrdSysTimer__
00002 #define __XrdSysTimer__
00003 /******************************************************************************/
00004 /*                                                                            */
00005 /*                        X r d S y s T i m e r . h h                         */
00006 /*                                                                            */
00007 /* (c) 2004 by the Board of Trustees of the Leland Stanford, Jr., University  */
00008 /*   Produced by Andrew Hanushevsky for Stanford University under contract    */
00009 /*              DE-AC02-76-SFO0515 with the Department of Energy              */
00010 /*                                                                            */
00011 /* This file is part of the XRootD software suite.                            */
00012 /*                                                                            */
00013 /* XRootD is free software: you can redistribute it and/or modify it under    */
00014 /* the terms of the GNU Lesser General Public License as published by the     */
00015 /* Free Software Foundation, either version 3 of the License, or (at your     */
00016 /* option) any later version.                                                 */
00017 /*                                                                            */
00018 /* XRootD is distributed in the hope that it will be useful, but WITHOUT      */
00019 /* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or      */
00020 /* FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public       */
00021 /* License for more details.                                                  */
00022 /*                                                                            */
00023 /* You should have received a copy of the GNU Lesser General Public License   */
00024 /* along with XRootD in a file called COPYING.LESSER (LGPL license) and file  */
00025 /* COPYING (GPL license).  If not, see <http://www.gnu.org/licenses/>.        */
00026 /*                                                                            */
00027 /* The copyright holder's institutional names and contributor's names may not */
00028 /* be used to endorse or promote products derived from this software without  */
00029 /* specific prior written permission of the institution or contributor.       */
00030 /******************************************************************************/
00031 
00032 #ifndef WIN32
00033 #include <sys/time.h>
00034 #else
00035 #include <time.h>
00036 #include <Winsock2.h>
00037 #include "XrdSys/XrdWin32.hh"
00038 #endif
00039 
00040 /* This include file describes the oo elapsed time interval interface. It is
00041    used by the oo Real Time Monitor, among others.
00042 */
00043 
00044 class XrdSysTimer {
00045 
00046 public:
00047        struct timeval *Delta_Time(struct timeval &tbeg);
00048 
00049 static time_t Midnight(time_t tnow=0);
00050 
00051 inline int    TimeLE(time_t tsec) {return StopWatch.tv_sec <= tsec;}
00052 
00053        // The following routines return the current interval added to the
00054        // passed argument as well as returning the current Unix seconds
00055        //
00056        unsigned long Report(double &);
00057        unsigned long Report(unsigned long &);
00058        unsigned long Report(unsigned long long &);
00059        unsigned long Report(struct timeval &);
00060 
00061 inline void Reset()   {gettimeofday(&StopWatch, 0);}
00062 
00063 inline time_t Seconds() {return StopWatch.tv_sec;}
00064 
00065 inline void Set(struct timeval &tod)
00066                        {StopWatch.tv_sec  = tod.tv_sec;
00067                         StopWatch.tv_usec = tod.tv_usec;
00068                        }
00069 
00070 static void Snooze(int seconds);
00071 
00072 static char *s2hms(int sec, char *buff, int blen);
00073 
00074 static int  TimeZone();
00075 
00076 static void Wait(int milliseconds);
00077 
00078 static void Wait4Midnight();
00079 
00080       XrdSysTimer() {Reset();}
00081 
00082 private:
00083       struct timeval StopWatch;     // Current running clock
00084       struct timeval LastReport;    // Total time from last report
00085 
00086       unsigned long Report();       // Place interval in Last Report
00087 };
00088 #endif

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