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XrdCmsRTable.cc
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/******************************************************************************/
/* */
/* X r d C m s R T a b l e . c c */
/* */
/* (c) 2007 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 <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 "XrdCms/XrdCmsRTable.hh"
#include "XrdCms/XrdCmsTrace.hh"
using namespace XrdCms;
/******************************************************************************/
/* G l o b a l s */
/******************************************************************************/
XrdCmsRTable XrdCms::RTable;
/******************************************************************************/
/* A d d */
/******************************************************************************/
short XrdCmsRTable::Add(XrdCmsNode *nP)
{
int i;
// Find a free slot for this node.
//
myMutex.Lock();
for (i = 1; i < maxRD; i++) if (!Rtable[i]) break;
// Insert the node if found
//
if (i >= maxRD) i = 0;
else {Rtable[i] = nP;
if (i > Hwm) Hwm = i;
}
// All done
//
myMutex.UnLock();
return static_cast<short>(i);
}
/******************************************************************************/
/* D e l */
/******************************************************************************/
void XrdCmsRTable::Del(XrdCmsNode *nP)
{
int i;
// Find the slot for this node.
//
myMutex.Lock();
for (i = 1; i <= Hwm; i++) if (Rtable[i] == nP) break;
// Remove the node if found
//
if (i <= Hwm)
{Rtable[i] = 0;
if (i == Hwm) {while(--i) if (Rtable[i]) break; Hwm = i;}
}
// All done
//
myMutex.UnLock();
}
/******************************************************************************/
/* F i n d */
/******************************************************************************/
// Note that the caller *must* call Lock() prior to calling find. We do this
// because this is the only way we can interlock the use of the node object
// with deletion of that object as it must be removed prior to deletion.
XrdCmsNode *XrdCmsRTable::Find(short Num, int Inst)
{
// Find the instance of the node in the indicated slot
//
if (Num <= Hwm && Rtable[Num] && Rtable[Num]->Inst() == Inst)
return Rtable[Num];
return (XrdCmsNode *)0;
}
/******************************************************************************/
/* S e n d */
/******************************************************************************/
void XrdCmsRTable::Send(const char *What, const char *data, int dlen)
{
EPNAME("Send");
int i;
// Send the data to all nodes in this table
//
myMutex.Lock();
for (i = 1; i <= Hwm; i++)
if (Rtable[i])
{DEBUG(What <<" to " <<Rtable[i]->Ident);
Rtable[i]->Send(data, dlen);
}
myMutex.UnLock();
}
DEBUG
#define DEBUG(x)
Definition XrdBwmTrace.hh:54
EPNAME
#define EPNAME(x)
Definition XrdBwmTrace.hh:56
XrdCmsRTable.hh
XrdCmsTrace.hh
maxRD
#define maxRD
Definition XrdCmsTypes.hh:44
XrdCmsNode
Definition XrdCmsNode.hh:58
XrdCmsRTable
Definition XrdCmsRTable.hh:40
XrdCmsRTable::Add
short Add(XrdCmsNode *nP)
Definition XrdCmsRTable.cc:46
XrdCmsRTable::Del
void Del(XrdCmsNode *nP)
Definition XrdCmsRTable.cc:72
XrdCmsRTable::Find
XrdCmsNode * Find(short Num, int Inst)
Definition XrdCmsRTable.cc:101
XrdCmsRTable::Send
void Send(const char *What, const char *data, int dlen)
Definition XrdCmsRTable.cc:115
XrdCms
Definition YProtocol.hh:78
XrdCms::RTable
XrdCmsRTable RTable
Definition XrdCmsRTable.cc:40