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XrdOucPreload.cc
Go to the documentation of this file.
/******************************************************************************/
/* */
/* X r d O u c P r e l o a d . c c */
/* */
/* (c) 2014 by the Board of Trustees of the Leland Stanford, Jr., University */
/* 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 <http://www.gnu.org/licenses/>. */
/* */
/* 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 <cstdio>
#include "XrdVersion.hh"
#include "XrdOuc/XrdOucVerName.hh"
#include "XrdOuc/XrdOucPreload.hh"
#include "XrdSys/XrdSysPlugin.hh"
/******************************************************************************/
/* X r d O u c P r e l o a d */
/******************************************************************************/
bool XrdOucPreload(const char *plib, char *eBuff, int eBlen, bool retry)
{
char theLib[2048];
bool dummy;
// Perform versioning
//
if (!XrdOucVerName::Version(XRDPLUGIN_SOVERSION, plib, dummy,
theLib, sizeof(theLib)))
{snprintf(eBuff, eBlen,
"Unable to preload plugin via %s; path too long.", plib);
return false;
}
// Preload the library. If we failed, we will try to fallback to the
// unversioned name is we are allowed to do so.
//
*eBuff = 0;
if (XrdSysPlugin::Preload(theLib, eBuff, eBlen)
|| (retry && XrdSysPlugin::Preload(plib, eBuff, eBlen))) return true;
return false;
}
XrdOucPreload
bool XrdOucPreload(const char *plib, char *eBuff, int eBlen, bool retry)
This include file define a utility function that pre-loads a plugin.
Definition XrdOucPreload.cc:42
XrdOucPreload.hh
XrdOucVerName.hh
XrdSysPlugin.hh
XrdOucVerName::Version
static int Version(const char *piVers, const char *piPath, bool &noFBK, char *buff, int blen)
Definition XrdOucVerName.cc:96
XrdSysPlugin::Preload
static bool Preload(const char *path, char *ebuff=0, int eblen=0)
Definition XrdSysPlugin.cc:435