/******************************************************************************/ /* */ /* X r d C m s R R D a t a . 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 . */ /* */ /* 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 "XrdCms/XrdCmsRRData.hh" #include "XrdSys/XrdSysPlatform.hh" #include "XrdSys/XrdSysPthread.hh" using namespace XrdCms; /******************************************************************************/ /* g e t B u f f */ /******************************************************************************/ int XrdCmsRRData::getBuff(size_t bsz) { static size_t PageSize = sysconf(_SC_PAGESIZE); size_t Alignment = PageSize; if (bsz < Alignment) {if (bsz <= 8) Alignment = bsz = 8; else {do {Alignment = Alignment >> 1;} while(bsz < Alignment); Alignment = Alignment << 1; bsz = Alignment; } } if (Buff) free(Buff); if (posix_memalign((void **)&Buff, Alignment, bsz)) {Buff = 0; return 0;} Blen = bsz; return 1; } /******************************************************************************/ /* O b j e c t i f y */ /******************************************************************************/ XrdCmsRRData *XrdCmsRRData::Objectify(XrdCmsRRData *op) { static XrdSysMutex myMutex; static XrdCmsRRData *Free; // Obtain a new object or recycle an old one // myMutex.Lock(); if (op) {op->Next = Free; Free = op; op = 0;} else {if ((op = Free)) Free = op->Next; else {op = new XrdCmsRRData; op->Buff = 0; op->Blen = 0;} op->Ident = 0; op->Next = 0; } myMutex.UnLock(); return op; }