/* * $Id$ * * DEBUG: section 79 Squid-side DISKD I/O functions. * AUTHOR: Duane Wessels * * SQUID Web Proxy Cache http://www.squid-cache.org/ * ---------------------------------------------------------- * * Squid is the result of efforts by numerous individuals from * the Internet community; see the CONTRIBUTORS file for full * details. Many organizations have provided support for Squid's * development; see the SPONSORS file for full details. Squid is * Copyrighted (C) 2001 by the Regents of the University of * California; see the COPYRIGHT file for full details. Squid * incorporates software developed and/or copyrighted by other * sources; see the CREDITS file for full details. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. * * Copyright (c) 2003, Robert Collins <robertc@squid-cache.org> */ #ifndef __STORE_DISKDFILE_H__ #define __STORE_DISKDFILE_H__ #include "cbdata.h" #include "DiskIO/DiskFile.h" class DiskdIOStrategy; struct diomsg; /** \ingroup diskd */ class DiskdFile : public DiskFile { public: void * operator new(size_t); void operator delete(void *); DiskdFile(char const *path, DiskdIOStrategy *); ~DiskdFile(); virtual void open(int flags, mode_t aMode, RefCount<IORequestor> callback); virtual void create(int flags, mode_t aMode, RefCount<IORequestor> callback); virtual void read(ReadRequest *); virtual void write(WriteRequest *); virtual void close(); virtual bool error() const; virtual bool canRead() const; virtual bool ioInProgress() const; /* Temporary */ int getID() const {return id;} void completed(diomsg *); private: int id; char const *path_; bool errorOccured; DiskdIOStrategy *IO; RefCount<IORequestor> ioRequestor; CBDATA_CLASS(DiskdFile); void openDone(diomsg *); void createDone (diomsg *); void readDone (diomsg *); void writeDone (diomsg *); void closeDone (diomsg *); int mode; void notifyClient(); bool canNotifyClient() const; void ioAway(); void ioCompleted(); size_t inProgressIOs; }; #endif