XRootD
XrdXrootdFileLock1.hh
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1 #ifndef _XROOTD_FILELOCK1_H_
2 #define _XROOTD_FILELOCK1_H_
3 /******************************************************************************/
4 /* */
5 /* X r d X r o o t d F i l e L o c k 1 . h h */
6 /* */
7 /* (c) 2004 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 "XrdSys/XrdSysPthread.hh"
34 
35 // This class implements a single server per host lock manager by simply using
36 // an in-memory hash table to keep track of file locks.
37 //
39 {
40 public:
41 
42  int Lock(const char *path, char mode, bool force);
43 
44  void numLocks(const char *path, int &rcnt, int &wcnt);
45 
46  int Unlock(const char *path, char mode);
47 
49  ~XrdXrootdFileLock1() {} // This object is never destroyed!
50 private:
51 static const char *TraceID;
52 static XrdSysMutex LTMutex;
53 };
54 #endif
void numLocks(const char *path, int &rcnt, int &wcnt)
int Unlock(const char *path, char mode)
int Lock(const char *path, char mode, bool force)