IOStreamProvider.h

   1 /*
   2  * Copyright (c) 2002, Robert Collins.
   3  *
   4  *     This program is free software; you can redistribute it and/or modify
   5  *     it under the terms of the GNU General Public License as published by
   6  *     the Free Software Foundation; either version 2 of the License, or
   7  *     (at your option) any later version.
   8  *
   9  *     A copy of the GNU General Public License can be found at
  10  *     http://www.gnu.org/
  11  *
  12  * Written by Robert Collins  <rbtcollins@hotmail.com>
  13  *
  14  */
  15
  16 #ifndef SETUP_IOSTREAMPROVIDER_H
  17 #define SETUP_IOSTREAMPROVIDER_H
  18
  19 #include "io_stream.h"
  20
  21 /* An IOStreamProvider provides the interface for io_stream::open and
  22  * related calls to operate.
  23  */
  24
  25 class IOStreamProvider
  26 {
  27 public:
  28   virtual int exists (const std::string& ) const = 0;
  29   virtual int remove (const std::string& ) const = 0;
  30   virtual int mklink (const std::string&, const std::string&,
  31                       io_stream_link_t) const = 0;
  32   virtual io_stream *open (const std::string&, const std::string&, mode_t) const = 0;
  33   virtual ~IOStreamProvider (){}
  34   virtual int move (const std::string&, const std::string&) const = 0;
  35   virtual int mkdir_p (path_type_t isadir, const std::string& path, mode_t mode) const = 0;
  36   std::string key; // Do not set - managed automatically.
  37 protected:
  38   IOStreamProvider(){} // no base instances
  39   IOStreamProvider(IOStreamProvider const &); // no copy cons
  40   IOStreamProvider &operator=(IOStreamProvider const &); // no assignment
  41 };
  42
  43 #endif /* SETUP_IOSTREAMPROVIDER_H */