XRootD
XrdXrootdPgwFob.hh
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1 #ifndef __XRDXROOTDPGWFOB_HH_
2 #define __XRDXROOTDPGWFOB_HH_
3 /******************************************************************************/
4 /* */
5 /* X r d X r o o t d P g w F o b . h h */
6 /* */
7 /* (c) 2021 by the Board of Trustees of the Leland Stanford, Jr., University */
8 /* Produced by Andrew Hanushevsky for Stanford University under contract */
9 /* DE-AC02-76-SFO0515 with the Department of Energy */
10 /* */
11 /* This file is part of the XRootD software suite. */
12 /* */
13 /* XRootD is free software: you can redistribute it and/or modify it under */
14 /* the terms of the GNU Lesser General Public License as published by the */
15 /* Free Software Foundation, either version 3 of the License, or (at your */
16 /* option) any later version. */
17 /* */
18 /* XRootD is distributed in the hope that it will be useful, but WITHOUT */
19 /* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or */
20 /* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public */
21 /* License for more details. */
22 /* */
23 /* You should have received a copy of the GNU Lesser General Public License */
24 /* along with XRootD in a file called COPYING.LESSER (LGPL license) and file */
25 /* COPYING (GPL license). If not, see <http://www.gnu.org/licenses/>. */
26 /* */
27 /* The copyright holder's institutional names and contributor's names may not */
28 /* be used to endorse or promote products derived from this software without */
29 /* specific prior written permission of the institution or contributor. */
30 /******************************************************************************/
31 
32 #include <set>
33 #include <cstring>
34 
35 #include "XProtocol/XProtocol.hh"
36 #include "XrdSys/XrdSysPthread.hh"
37 
38 class XrdOucString;
39 class XrdXrootdFile;
40 
42 {
43 public:
44 
45 
46 bool addOffs(kXR_int64 foffs, int dlen)
47  {XrdSysMutexHelper mHelp(fobMutex);
48  foffs = foffs << XrdProto::kXR_pgPageBL;
49  if (dlen < XrdProto::kXR_pgPageSZ) foffs |= dlen;
50  badOffs.insert(foffs);
51  numErrs++;
52  return badOffs.size() <= XrdProto::kXR_pgMaxEos;
53  }
54 
55 bool delOffs(kXR_int64 foffs, int dlen)
56  {XrdSysMutexHelper mHelp(fobMutex);
57  foffs = foffs << XrdProto::kXR_pgPageBL;
58  if (dlen < XrdProto::kXR_pgPageSZ) foffs |= dlen;
59  numFixd++;
60  return badOffs.erase(foffs) != 0;
61  }
62 
63 bool hasOffs(kXR_int64 foffs, int dlen)
64  {XrdSysMutexHelper mHelp(fobMutex);
65  foffs = foffs << XrdProto::kXR_pgPageBL;
66  if (dlen < XrdProto::kXR_pgPageSZ) foffs |= dlen;
67  return badOffs.find(foffs) != badOffs.end();
68  }
69 
70 int numOffs(int *errs=0, int *fixs=0)
71  {XrdSysMutexHelper mHelp(fobMutex);
72  if (errs) *errs = numErrs;
73  if (fixs) *fixs = numFixd;
74  return badOffs.size();
75  }
76 
78  : fileP(fP), numErrs(0), numFixd(0) {}
79 
81 
82 private:
83 
84 XrdXrootdFile *fileP;
85 XrdSysMutex fobMutex;
86 std::set<kXR_int64> badOffs; // Uncorrected offsets
87 int numErrs;
88 int numFixd;
89 };
90 #endif
long long kXR_int64
Definition: XPtypes.hh:98
bool hasOffs(kXR_int64 foffs, int dlen)
XrdXrootdPgwFob(XrdXrootdFile *fP)
bool delOffs(kXR_int64 foffs, int dlen)
int numOffs(int *errs=0, int *fixs=0)
bool addOffs(kXR_int64 foffs, int dlen)
static const int kXR_pgPageSZ
Definition: XProtocol.hh:494
static const int kXR_pgPageBL
Definition: XProtocol.hh:495
static const int kXR_pgMaxEos
Definition: XProtocol.hh:498