/******************************************************************************/
/* */
/* X r d C k s M a n O s s . c c */
/* */
/* (c) 2014 by the Board of Trustees of the Leland Stanford, Jr., University */
/* All Rights Reserved */
/* Produced by Andrew Hanushevsky for Stanford University under contract */
/* DE-AC02-76-SFO0515 with the Department of Energy */
/* */
/* This file is part of the XRootD software suite. */
/* */
/* XRootD is free software: you can redistribute it and/or modify it under */
/* the terms of the GNU Lesser General Public License as published by the */
/* Free Software Foundation, either version 3 of the License, or (at your */
/* option) any later version. */
/* */
/* XRootD is distributed in the hope that it will be useful, but WITHOUT */
/* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or */
/* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public */
/* License for more details. */
/* */
/* You should have received a copy of the GNU Lesser General Public License */
/* along with XRootD in a file called COPYING.LESSER (LGPL license) and file */
/* COPYING (GPL license). If not, see . */
/* */
/* The copyright holder's institutional names and contributor's names may not */
/* be used to endorse or promote products derived from this software without */
/* specific prior written permission of the institution or contributor. */
/******************************************************************************/
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include "XrdCks/XrdCksCalc.hh"
#include "XrdCks/XrdCksManOss.hh"
#include "XrdOss/XrdOss.hh"
#include "XrdOuc/XrdOucEnv.hh"
#include "XrdSys/XrdSysError.hh"
/******************************************************************************/
/* L o c a l S t a t i c s */
/******************************************************************************/
namespace
{
XrdOss *ossP = 0;
int rdSz = 67108864;
}
/******************************************************************************/
/* L o c a l C l a s s e s */
/******************************************************************************/
class LfnPfn
{public:
const char *Lfn;
char Pfn[MAXPATHLEN+8];
LfnPfn(const char *lfn, int &rc) : Lfn(lfn)
{rc = ossP->Lfn2Pfn(lfn, Pfn, MAXPATHLEN);
if (rc > 0) rc = -rc;
}
~LfnPfn() {}
};
namespace
{
const char *Pfn2Lfn(const char *Lfn)
{LfnPfn *Xfn = (LfnPfn *)(Lfn-sizeof(const char *));
return Xfn->Lfn;
}
}
/******************************************************************************/
/* C o n s t r u c t o r */
/******************************************************************************/
XrdCksManOss::XrdCksManOss(XrdOss *ossX, XrdSysError *erP, int iosz,
XrdVersionInfo &vInfo, bool autoload)
: XrdCksManager(erP, rdSz, vInfo, autoload)
{if (rdSz <= 65536) rdSz = 67108864;
else rdSz = ((rdSz/65536) + (rdSz%65536 != 0)) * 65536;
eDest = erP;
ossP = ossX;
}
/******************************************************************************/
/* C a l c */
/******************************************************************************/
int XrdCksManOss::Calc(const char *Lfn, XrdCksData &Cks, int doSet)
{
int rc;
LfnPfn Xfn(Lfn, rc);
// If lfn conversion failed, bail out
//
if (rc) return rc;
// Return the result
//
return XrdCksManager::Calc(Xfn.Pfn, Cks, doSet);
}
/******************************************************************************/
int XrdCksManOss::Calc(const char *Pfn, time_t &MTime, XrdCksCalc *csP)
{
class inFile
{public:
XrdOssDF *fP;
inFile() {fP = ossP->newFile("ckscalc");}
~inFile() {if (fP) delete fP;}
} In;
XrdOucEnv openEnv;
const char *Lfn = Pfn2Lfn(Pfn);
struct stat Stat;
char *buffP;
off_t Offset=0, fileSize;
size_t ioSize, calcSize;
int rc;
// Open the input file
//
if ((rc = In.fP->Open(Lfn,O_RDONLY,0,openEnv))) return (rc > 0 ? -rc : rc);
// Get the file characteristics
//
if ((rc = In.fP->Fstat(&Stat))) return (rc > 0 ? -rc : rc);
if (!(Stat.st_mode & S_IFREG)) return -EPERM;
calcSize = fileSize = Stat.st_size;
MTime = Stat.st_mtime;
// Compute read size and allocate a buffer
//
ioSize = (fileSize < (off_t)rdSz ? fileSize : rdSz); rc = 0;
buffP = (char *)malloc(ioSize);
if (!buffP) return -ENOMEM;
// We now compute checksum 64MB at a time using mmap I/O
//
while(calcSize)
{if ((rc= In.fP->Read(buffP, Offset, ioSize)) < 0) break;
csP->Update(buffP, ioSize);
calcSize -= ioSize; Offset += ioSize;
if (calcSize < (size_t)ioSize) ioSize = calcSize;
}
// Issue error message if we have an error
//
if (rc < 0) eDest->Emsg("Cks", rc, "read", Pfn);
// Return
//
return (rc < 0 ? rc : 0);
}
/******************************************************************************/
/* D e l */
/******************************************************************************/
int XrdCksManOss::Del(const char *Lfn, XrdCksData &Cks)
{
int rc;
LfnPfn Xfn(Lfn, rc);
// If lfn conversion failed, bail out
//
if (rc) return rc;
// Delete the attribute and return the result
//
return XrdCksManager::Del(Xfn.Pfn, Cks);
}
/******************************************************************************/
/* G e t */
/******************************************************************************/
int XrdCksManOss::Get(const char *Lfn, XrdCksData &Cks)
{
int rc;
LfnPfn Xfn(Lfn, rc);
// If lfn conversion failed, bail out
//
if (rc) return rc;
// Return result
//
return XrdCksManager::Get(Xfn.Pfn, Cks);
}
/******************************************************************************/
/* L i s t */
/******************************************************************************/
char *XrdCksManOss::List(const char *Lfn, char *Buff, int Blen, char Sep)
{
int rc;
LfnPfn Xfn(Lfn, rc);
// If lfn conversion failed, bail out
//
if (rc) return 0;
// Simply invoke the base class list
//
return XrdCksManager::List(Xfn.Pfn, Buff, Blen,Sep);
}
/******************************************************************************/
/* M o d T i m e */
/******************************************************************************/
int XrdCksManOss::ModTime(const char *Pfn, time_t &MTime)
{
const char *Lfn = Pfn2Lfn(Pfn);
struct stat Stat;
int rc;
if (!(rc = ossP->Stat(Lfn, &Stat))) MTime = Stat.st_mtime;
return (rc > 0 ? -rc : 0);
}
/******************************************************************************/
/* S e t */
/******************************************************************************/
int XrdCksManOss::Set(const char *Lfn, XrdCksData &Cks, int myTime)
{
int rc;
LfnPfn Xfn(Lfn, rc);
// If lfn conversion failed, bail out
//
if (rc) return rc;
// Now set the checksum information in the extended attribute object
//
return XrdCksManager::Set(Xfn.Pfn, Cks, myTime);
}
/******************************************************************************/
/* V e r */
/******************************************************************************/
int XrdCksManOss::Ver(const char *Lfn, XrdCksData &Cks)
{
int rc;
LfnPfn Xfn(Lfn, rc);
// If lfn conversion failed, bail out
//
if (rc) return rc;
// Return result invoking the base class
//
return XrdCksManager::Ver(Lfn, Cks);
}