package_db.h

   1 /*
   2  * Copyright (c) 2001, 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_PACKAGE_DB_H
  17 #define SETUP_PACKAGE_DB_H
  18
  19 /* required to parse this file */
  20 #include <vector>
  21 #include <map>
  22 #include "String++.h"
  23 class packagemeta;
  24 class io_stream;
  25 class PackageSpecification;
  26
  27 typedef enum {
  28   PackageDB_Install,
  29   PackageDB_Download
  30 } PackageDBActions;
  31
  32 extern PackageDBActions chosen_db_task;
  33
  34 class packagedb;
  35 typedef std::vector <packagemeta *>::iterator PackageDBConnectedIterator;
  36
  37 /*TODO: add mutexs */
  38 class packagedb
  39 {
  40 public:
  41   packagedb ();
  42   /* 0 on success */
  43   int flush ();
  44   packagemeta * findBinary (PackageSpecification const &) const;
  45   packagemeta * findSource (PackageSpecification const &) const;
  46   PackageDBConnectedIterator connectedBegin();
  47   PackageDBConnectedIterator connectedEnd();
  48   void fillMissingCategory();
  49   void markUnVisited();
  50   void setExistence();
  51   /* all seen binary packages */
  52   static std::vector < packagemeta *> packages;
  53   /* all seen source packages */
  54   static std::vector <packagemeta *> sourcePackages;
  55   /* all seen categories */
  56   typedef std::map <std::string, std::vector <packagemeta *>, casecompare_lt_op > categoriesType;
  57   static categoriesType categories;
  58   static PackageDBActions task;
  59 private:
  60   static int installeddbread;   /* do we have to reread this */
  61   friend class ConnectedLoopFinder;
  62   static std::vector <packagemeta *> dependencyOrderedPackages;
  63 };
  64
  65 #endif /* SETUP_PACKAGE_DB_H */