xrootd/Xrd/XrdJob.hh

0001 #ifndef ___XRD_JOB_H___
0002 #define ___XRD_JOB_H___
0003 /******************************************************************************/
0004 /*                                                                            */
0005 /*                             X r d J o b . h h                              */
0006 /*                                                                            */
0007 /* (c) 2004 by the Board of Trustees of the Leland Stanford, Jr., University  */
0008 /*   Produced by Andrew Hanushevsky for Stanford University under contract    */
0009 /*              DE-AC02-76-SFO0515 with the Department of Energy              */
0010 /*                                                                            */
0011 /* This file is part of the XRootD software suite.                            */
0012 /*                                                                            */
0013 /* XRootD is free software: you can redistribute it and/or modify it under    */
0014 /* the terms of the GNU Lesser General Public License as published by the     */
0015 /* Free Software Foundation, either version 3 of the License, or (at your     */
0016 /* option) any later version.                                                 */
0017 /*                                                                            */
0018 /* XRootD is distributed in the hope that it will be useful, but WITHOUT      */
0019 /* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or      */
0020 /* FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public       */
0021 /* License for more details.                                                  */
0022 /*                                                                            */
0023 /* You should have received a copy of the GNU Lesser General Public License   */
0024 /* along with XRootD in a file called COPYING.LESSER (LGPL license) and file  */
0025 /* COPYING (GPL license).  If not, see <http://www.gnu.org/licenses/>.        */
0026 /*                                                                            */
0027 /* The copyright holder's institutional names and contributor's names may not */
0028 /* be used to endorse or promote products derived from this software without  */
0029 /* specific prior written permission of the institution or contributor.       */
0030 /******************************************************************************/
0031
0032 #include <cstdlib>
0033 #include <cstring>
0034 #include <strings.h>
0035 #include <ctime>
0036
0037 // The XrdJob class is a super-class that is inherited by any class that needs
0038 // to schedule work on behalf of itself. The XrdJob class is optimized for
0039 // queue processing since that's where it spends a lot of time. This class
0040 // should not be depedent on any other class.
0041
0042 class XrdJob
0043 {
0044 friend class XrdScheduler;
0045 public:
0046 XrdJob    *NextJob;   // -> Next job in the queue (zero if last)
0047 const char *Comment;   // -> Description of work for debugging (static!)
0048
0049 virtual void  DoIt() = 0;
0050
0051               XrdJob(const char *desc="")
0052                     {Comment = desc; NextJob = 0; SchedTime = 0;}
0053 virtual      ~XrdJob() {}
0054
0055 private:
0056 time_t      SchedTime; // -> Time job is to be scheduled
0057 };
0058 #endif