XrdJob.hh

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00001 #ifndef ___XRD_JOB_H___
00002 #define ___XRD_JOB_H___
00003 /******************************************************************************/
00004 /*                                                                            */
00005 /*                             X r d J o b . 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 #include <stdlib.h>
00033 #include <string.h>
00034 #include <strings.h>
00035 #include <time.h>
00036   
00037 // The XrdJob class is a super-class that is inherited by any class that needs
00038 // to schedule work on behalf of itself. The XrdJob class is optimized for
00039 // queue processing since that's where it spends a lot of time. This class
00040 // should not be depedent on any other class.
00041 
00042 class XrdJob
00043 {
00044 friend class XrdScheduler;
00045 public:
00046 XrdJob    *NextJob;   // -> Next job in the queue (zero if last)
00047 const char *Comment;   // -> Description of work for debugging (static!)
00048 
00049 virtual void  DoIt() = 0;
00050 
00051               XrdJob(const char *desc="")
00052                     {Comment = desc; NextJob = 0; SchedTime = 0;}
00053 virtual      ~XrdJob() {}
00054 
00055 private:
00056 time_t      SchedTime; // -> Time job is to be scheduled
00057 };
00058 #endif

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