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fileproc.h

00001 // 00002 // fileproc.h 00003 // 00004 // Copyright (C) 1996 Limit Point Systems, Inc. 00005 // 00006 // Author: Curtis Janssen <cljanss@limitpt.com> 00007 // Maintainer: LPS 00008 // 00009 // This file is part of the SC Toolkit. 00010 // 00011 // The SC Toolkit is free software; you can redistribute it and/or modify 00012 // it under the terms of the GNU Library General Public License as published by 00013 // the Free Software Foundation; either version 2, or (at your option) 00014 // any later version. 00015 // 00016 // The SC Toolkit is distributed in the hope that it will be useful, 00017 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00018 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00019 // GNU Library General Public License for more details. 00020 // 00021 // You should have received a copy of the GNU Library General Public License 00022 // along with the SC Toolkit; see the file COPYING.LIB. If not, write to 00023 // the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. 00024 // 00025 // The U.S. Government is granted a limited license as per AL 91-7. 00026 // 00027 00028 #ifdef __GNUC__ 00029 #pragma interface 00030 #endif 00031 00032 #ifndef _util_group_fileproc_h 00033 #define _util_group_fileproc_h 00034 00035 #include <sys/types.h> 00036 00037 #include <util/group/memmsg.h> 00038 00039 namespace sc { 00040 00043 class ProcFileGrp: public FileGrp { 00044 private: 00045 int datafile_; 00046 public: 00047 ProcFileGrp(); 00048 ProcFileGrp(const Ref<KeyVal>&); 00049 ~ProcFileGrp(); 00050 00051 ProcFileGrp* clone(); 00052 00053 void set_localsize(size_t); 00054 void *localdata(); 00055 00056 void *obtain_readwrite(distsize_t offset, int size); 00057 void *obtain_readonly(distsize_t offset, int size); 00058 void *obtain_writeonly(distsize_t offset, int size); 00059 void release_readonly(void *data, distsize_t offset, int size); 00060 void release_writeonly(void *data, distsize_t offset, int size); 00061 void release_readwrite(void *data, distsize_t offset, int size); 00062 00063 void sync(); 00064 }; 00065 00066 } 00067 00068 #endif 00069 00070 // Local Variables: 00071 // mode: c++ 00072 // c-file-style: "CLJ" 00073 // End:

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