00001 #ifndef __SFS_XIO_H__ 00002 #define __SFS_XIO_H__ 00003 /******************************************************************************/ 00004 /* */ 00005 /* X r d S f s X i o . h h */ 00006 /* */ 00007 /* (c) 2013 by the Board of Trustees of the Leland Stanford, Jr., University */ 00008 /* Produced by Andrew Hanushevsky for Stanford University under contract */ 00009 /* DE-AC02-76-SFO0515 with the Department of Energy */ 00010 /* */ 00011 /* This file is part of the XRootD software suite. */ 00012 /* */ 00013 /* XRootD is free software: you can redistribute it and/or modify it under */ 00014 /* the terms of the GNU Lesser General Public License as published by the */ 00015 /* Free Software Foundation, either version 3 of the License, or (at your */ 00016 /* option) any later version. */ 00017 /* */ 00018 /* XRootD is distributed in the hope that it will be useful, but WITHOUT */ 00019 /* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or */ 00020 /* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public */ 00021 /* License for more details. */ 00022 /* */ 00023 /* You should have received a copy of the GNU Lesser General Public License */ 00024 /* along with XRootD in a file called COPYING.LESSER (LGPL license) and file */ 00025 /* COPYING (GPL license). If not, see <http://www.gnu.org/licenses/>. */ 00026 /* */ 00027 /* The copyright holder's institutional names and contributor's names may not */ 00028 /* be used to endorse or promote products derived from this software without */ 00029 /* specific prior written permission of the institution or contributor. */ 00030 /******************************************************************************/ 00031 00032 //----------------------------------------------------------------------------- 00043 //----------------------------------------------------------------------------- 00044 00045 //typedef void* XrdSfsXioHandle; 00046 typedef class XrdBuffer* XrdSfsXioHandle; 00047 00048 class XrdSfsXioImpl; 00049 00050 /******************************************************************************/ 00051 /* C l a s s X r d S f s X i o */ 00052 /******************************************************************************/ 00053 00054 class XrdSfsXio 00055 { 00056 public: 00057 00058 //----------------------------------------------------------------------------- 00066 //----------------------------------------------------------------------------- 00067 00068 static char *Buffer(XrdSfsXioHandle theHand, int *buffsz=0); 00069 00070 //----------------------------------------------------------------------------- 00083 //----------------------------------------------------------------------------- 00084 virtual 00085 XrdSfsXioHandle Claim(const char *curBuff, int datasz, int minasz) = 0; 00086 00087 //----------------------------------------------------------------------------- 00091 //----------------------------------------------------------------------------- 00092 00093 static void Reclaim(XrdSfsXioHandle theHand); 00094 00095 //----------------------------------------------------------------------------- 00112 //----------------------------------------------------------------------------- 00113 virtual 00114 XrdSfsXioHandle Swap(const char *curBuff, XrdSfsXioHandle oldHand=0) = 0; 00115 00116 //----------------------------------------------------------------------------- 00120 //----------------------------------------------------------------------------- 00121 00122 XrdSfsXio(XrdSfsXioImpl &xioimpl); 00123 00124 //----------------------------------------------------------------------------- 00126 //----------------------------------------------------------------------------- 00127 00128 virtual ~XrdSfsXio() {} 00129 }; 00130 #endif