00001 #ifndef __XRDPOSIXDIR_H__ 00002 #define __XRDPOSIXDIR_H__ 00003 /******************************************************************************/ 00004 /* */ 00005 /* X r d P o s i x D i r . h h */ 00006 /* */ 00007 /* (c) 2013 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 /* Modified by Frank Winklmeier to add the full Posix file system definition. */ 00032 /******************************************************************************/ 00033 00034 #include <dirent.h> 00035 00036 #if defined(__APPLE__) 00037 #if !defined(dirent64) 00038 #define dirent64 dirent 00039 #endif 00040 #endif 00041 00042 #include <unistd.h> 00043 #include <sys/types.h> 00044 00045 #include "XrdPosix/XrdPosixAdmin.hh" 00046 #include "XrdPosix/XrdPosixObject.hh" 00047 00048 class XrdPosixDir : public XrdPosixObject 00049 { 00050 public: 00051 XrdPosixDir(const char *path) 00052 : DAdmin(path), myDirVec(0), myDirEnt(0), 00053 nxtEnt(0), numEnt(0), eNum(0) 00054 {} 00055 00056 ~XrdPosixDir() {delete myDirVec; 00057 if (myDirEnt) free(myDirEnt); 00058 } 00059 00060 static int dirNo(DIR *dirP) {return *(int *)dirP;} 00061 00062 long getEntries() { return numEnt;} 00063 00064 long getOffset() { return nxtEnt; } 00065 00066 void setOffset(long offset) { nxtEnt = offset; } 00067 00068 dirent64 *nextEntry(dirent64 *dp=0); 00069 00070 DIR *Open(); 00071 00072 void rewind() {objMutex.WriteLock(); 00073 nxtEnt = 0; delete myDirVec; myDirVec = 0; 00074 objMutex.UnLock(); 00075 } 00076 int Status() {return eNum;} 00077 00078 bool Unread() {return myDirVec == 0;} 00079 00080 using XrdPosixObject::Who; 00081 00082 bool Who(XrdPosixDir **dirP) {*dirP = this; return true;} 00083 00084 static const size_t maxDlen = 256; 00085 00086 private: 00087 XrdPosixAdmin DAdmin; 00088 XrdCl::DirectoryList *myDirVec; 00089 dirent64 *myDirEnt; 00090 uint32_t nxtEnt; 00091 uint32_t numEnt; 00092 int eNum; 00093 }; 00094 #endif