XRootD
Loading...
Searching...
No Matches
XrdFrcReqFile.hh
Go to the documentation of this file.
1#ifndef __FRCREQFILE_H__
2#define __FRCREQFILE_H__
3/******************************************************************************/
4/* */
5/* X r d F r c R e q F i l e . h h */
6/* */
7/* (c) 2010 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
35
37{
38public:
39
40 void Add(XrdFrcRequest *rP);
41
42 void Can(XrdFrcRequest *rP);
43
44 void Del(XrdFrcRequest *rP);
45
46 int Get(XrdFrcRequest *rP);
47
48 int Init();
49
50 char *List(char *Buff, int bsz, int &Offs,
51 XrdFrcRequest::Item *ITList=0, int ITNum=0);
52
53 void ListL(XrdFrcRequest &tmpReq, char *Buff, int bsz,
54 XrdFrcRequest::Item *ITList, int ITNum);
55
56 XrdFrcReqFile(const char *fn, int aVal);
58
59private:
60enum LockType {lkNone, lkShare, lkExcl, lkInit};
61
62static const int ReqSize = sizeof(XrdFrcRequest);
63
64void FailAdd(char *lfn, int unlk=1);
65void FailCan(char *rid, int unlk=1);
66void FailDel(char *lfn, int unlk=1);
67int FailIni(const char *lfn);
68int FileLock(LockType ltype=lkExcl);
69int reqRead(void *Buff, int Offs);
70int reqWrite(void *Buff, int Offs, int updthdr=1);
71
72XrdSysMutex flMutex;
73
74struct FileHdr
75{
76int First;
77int Last;
78int Free;
79} HdrData;
80
81char *lokFN;
82int lokFD;
83int reqFD;
84char *reqFN;
85
86int isAgent;
87
88struct recEnt {recEnt *Next;
89 XrdFrcRequest reqData;
90 recEnt(XrdFrcRequest &reqref) {Next = 0; reqData = reqref;}
91 };
92int ReWrite(recEnt *rP);
93
94class rqMonitor
95{
96public:
97 rqMonitor(int isAgent) : doUL(isAgent)
98 {if (isAgent) rqMutex.Lock();}
99 ~rqMonitor() {if (doUL) rqMutex.UnLock();}
100private:
101static XrdSysMutex rqMutex;
102int doUL;
103};
104};
105#endif
int Get(XrdFrcRequest *rP)
void Del(XrdFrcRequest *rP)
char * List(char *Buff, int bsz, int &Offs, XrdFrcRequest::Item *ITList=0, int ITNum=0)
void Add(XrdFrcRequest *rP)
XrdFrcReqFile(const char *fn, int aVal)
void ListL(XrdFrcRequest &tmpReq, char *Buff, int bsz, XrdFrcRequest::Item *ITList, int ITNum)
void Can(XrdFrcRequest *rP)