#ifndef __XRDOSSMIO_H__
#define __XRDOSSMIO_H__
/******************************************************************************/
/* */
/* X r d o s s M i o . h h */
/* */
/* (c) 2005 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 "XrdSys/XrdSysError.hh"
#include "XrdOuc/XrdOucHash.hh"
#include "XrdSys/XrdSysPthread.hh"
#include "XrdOss/XrdOssMioFile.hh"
// The following are options passed to Map()
//
#define OSSMIO_MLOK 0x0001
#define OSSMIO_MMAP 0x0002
#define OSSMIO_MPRM 0x0004
class XrdOssMio
{
public:
static void Display(XrdSysError &Eroute);
static char isAuto() {return MM_chk;}
static char isOn() {return MM_on;}
static XrdOssMioFile *Map(char *path, int fd, int opts);
static void *preLoad(void *arg);
static void Recycle(XrdOssMioFile *mp);
static void Set(int V_off, int V_preld, int V_check);
static void Set(long long V_max);
private:
static int Reclaim(off_t amount);
static int Reclaim(XrdOssMioFile *mp);
static XrdOucHash MM_Hash;
static XrdSysMutex MM_Mutex;
static XrdOssMioFile *MM_Perm;
static XrdOssMioFile *MM_Idle;
static XrdOssMioFile *MM_IdleLast;
static char MM_on;
static char MM_chk;
static char MM_okmlock;
static char MM_preld;
static long long MM_max;
static long long MM_pagsz;
static long long MM_pages;
static long long MM_inuse;
};
#endif