00001 #ifndef __XRDXROOTDPIO__ 00002 #define __XRDXROOTDPIO__ 00003 /******************************************************************************/ 00004 /* */ 00005 /* X r d X r o o t d P i o . h h */ 00006 /* */ 00007 /* (c) 2007 by the Board of Trustees of the Leland Stanford, Jr., University */ 00008 /* All Rights Reserved */ 00009 /* Produced by Andrew Hanushevsky for Stanford University under contract */ 00010 /* DE-AC02-76-SFO0515 with the Department of Energy */ 00011 /* */ 00012 /* This file is part of the XRootD software suite. */ 00013 /* */ 00014 /* XRootD is free software: you can redistribute it and/or modify it under */ 00015 /* the terms of the GNU Lesser General Public License as published by the */ 00016 /* Free Software Foundation, either version 3 of the License, or (at your */ 00017 /* option) any later version. */ 00018 /* */ 00019 /* XRootD is distributed in the hope that it will be useful, but WITHOUT */ 00020 /* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or */ 00021 /* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public */ 00022 /* License for more details. */ 00023 /* */ 00024 /* You should have received a copy of the GNU Lesser General Public License */ 00025 /* along with XRootD in a file called COPYING.LESSER (LGPL license) and file */ 00026 /* COPYING (GPL license). If not, see <http://www.gnu.org/licenses/>. */ 00027 /* */ 00028 /* The copyright holder's institutional names and contributor's names may not */ 00029 /* be used to endorse or promote products derived from this software without */ 00030 /* specific prior written permission of the institution or contributor. */ 00031 /******************************************************************************/ 00032 00033 #include "XProtocol/XPtypes.hh" 00034 #include "XrdSys/XrdSysPthread.hh" 00035 00036 class XrdXrootdFile; 00037 00038 class XrdXrootdPio 00039 { 00040 public: 00041 00042 XrdXrootdPio *Next; 00043 XrdXrootdFile *myFile; 00044 long long myOffset; 00045 int myIOLen; 00046 kXR_char StreamID[2]; 00047 char isWrite; 00048 00049 static XrdXrootdPio *Alloc(int n=1); 00050 00051 inline XrdXrootdPio *Clear(XrdXrootdPio *np=0) 00052 {const kXR_char zed[2] = {0,0}; 00053 Set(0, 0, 0, zed,'\0'); 00054 Next = np; return this; 00055 } 00056 00057 void Recycle(); 00058 00059 inline void Set(XrdXrootdFile *theFile, long long theOffset, 00060 int theIOLen, const kXR_char *theSID, char theW) 00061 {myFile = theFile; 00062 myOffset = theOffset; 00063 myIOLen = theIOLen; 00064 StreamID[0] = theSID[0]; StreamID[1] = theSID[1]; 00065 isWrite = theW; 00066 } 00067 00068 XrdXrootdPio(XrdXrootdPio *np=0) {Clear(np);} 00069 ~XrdXrootdPio() {} 00070 00071 private: 00072 00073 static const int FreeMax = 256; 00074 static XrdSysMutex myMutex; 00075 static XrdXrootdPio *Free; 00076 static int FreeNum; 00077 }; 00078 #endif