xrootd
XrdFrmTSort.hh
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1 #ifndef __FRMTSORT__
2 #define __FRMTSORT__
3 /******************************************************************************/
4 /* */
5 /* X r d F r m T S o r t . h h */
6 /* */
7 /* (c) 2009 by the Board of Trustees of the Leland Stanford, Jr., University */
8 /* All Rights Reserved */
9 /* Produced by Andrew Hanushevsky for Stanford University under contract */
10 /* DE-AC02-76-SFO0515 with the Department of Energy */
11 /* */
12 /* This file is part of the XRootD software suite. */
13 /* */
14 /* XRootD is free software: you can redistribute it and/or modify it under */
15 /* the terms of the GNU Lesser General Public License as published by the */
16 /* Free Software Foundation, either version 3 of the License, or (at your */
17 /* option) any later version. */
18 /* */
19 /* XRootD is distributed in the hope that it will be useful, but WITHOUT */
20 /* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or */
21 /* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public */
22 /* License for more details. */
23 /* */
24 /* You should have received a copy of the GNU Lesser General Public License */
25 /* along with XRootD in a file called COPYING.LESSER (LGPL license) and file */
26 /* COPYING (GPL license). If not, see <http://www.gnu.org/licenses/>. */
27 /* */
28 /* The copyright holder's institutional names and contributor's names may not */
29 /* be used to endorse or promote products derived from this software without */
30 /* specific prior written permission of the institution or contributor. */
31 /******************************************************************************/
32 
33 class XrdFrmFileset;
34 
35 class XrdFrmTSort
36 {
37 public:
38 
39 int Add(XrdFrmFileset *fsp);
40 
41 int Count() {return numEnt;}
42 
43 XrdFrmFileset *Oldest();
44 
45 void Purge();
46 
47  XrdFrmTSort(int szSort=0) : sortSZ(szSort) {Reset();}
48  ~XrdFrmTSort() {Purge();}
49 
50 private:
51 int Bin(XrdFrmFileset *fsp, int j, int Shift);
52 XrdFrmFileset *Insert(XrdFrmFileset *newP, XrdFrmFileset *oldP);
53 void Reset();
54 
55 static const int SCshift = 0;
56 static const int MNshift = 6;
57 static const int HRshift = 12;
58 static const int tMask = 0x3f;
59 static const int dVal = 24*60*60;
60 
61 XrdFrmFileset *FSTab[4][64];
62 time_t baseT;
63 int sortSZ;
64 int numEnt;
65 
66 int DYent; // [0,DYent]
67 int HRent; // [1,HRent]
68 int MNent; // [2,MNent]
69 int SCent; // [3,SCent]
70 };
71 #endif
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