apt  0.9.7.7ubuntu4
packagemanager.h
1 // -*- mode: cpp; mode: fold -*-
2 // Description /*{{{*/
3 // $Id: packagemanager.h,v 1.14 2001/05/07 04:24:08 jgg Exp $
4 /* ######################################################################
5 
6  Package Manager - Abstacts the package manager
7 
8  Three steps are
9  - Aquiration of archives (stores the list of final file names)
10  - Sorting of operations
11  - Invokation of package manager
12 
13  This is the final stage when the package cache entities get converted
14  into file names and the state stored in a DepCache is transformed
15  into a series of operations.
16 
17  In the final scheme of things this may serve as a director class to
18  access the actual install methods based on the file type being
19  installed.
20 
21  ##################################################################### */
22  /*}}}*/
23 #ifndef PKGLIB_PACKAGEMANAGER_H
24 #define PKGLIB_PACKAGEMANAGER_H
25 
26 #include <apt-pkg/pkgcache.h>
27 
28 #include <string>
29 #include <iostream>
30 #include <set>
31 
32 #ifndef APT_8_CLEANER_HEADERS
33 #include <apt-pkg/depcache.h>
34 using std::string;
35 #endif
36 
37 class pkgAcquire;
38 class pkgDepCache;
39 class pkgSourceList;
40 class pkgOrderList;
41 class pkgRecords;
43 {
44  public:
45 
46  enum OrderResult {Completed,Failed,Incomplete};
47  static bool SigINTStop;
48 
49  protected:
50  std::string *FileNames;
51  pkgDepCache &Cache;
52  pkgOrderList *List;
53  bool Debug;
54  bool NoImmConfigure;
55  bool ImmConfigureAll;
56 
63  std::set<std::string> disappearedPkgs;
64 
65  void ImmediateAdd(PkgIterator P, bool UseInstallVer, unsigned const int &Depth = 0);
66  virtual OrderResult OrderInstall();
67  bool CheckRConflicts(PkgIterator Pkg,DepIterator Dep,const char *Ver);
68  bool CreateOrderList();
69 
70  // Analysis helpers
71  bool DepAlwaysTrue(DepIterator D);
72 
73  // Install helpers
74  bool ConfigureAll();
75  bool SmartConfigure(PkgIterator Pkg, int const Depth);
76  //FIXME: merge on abi break
77  bool SmartUnPack(PkgIterator Pkg);
78  bool SmartUnPack(PkgIterator Pkg, bool const Immediate, int const Depth);
79  bool SmartRemove(PkgIterator Pkg);
80  bool EarlyRemove(PkgIterator Pkg);
81 
82  // The Actual installation implementation
83  virtual bool Install(PkgIterator /*Pkg*/,std::string /*File*/) {return false;};
84  virtual bool Configure(PkgIterator /*Pkg*/) {return false;};
85  virtual bool Remove(PkgIterator /*Pkg*/,bool /*Purge*/=false) {return false;};
86  virtual bool Go(int statusFd=-1) {return true;};
87  virtual void Reset() {};
88 
89  // the result of the operation
90  OrderResult Res;
91 
92  public:
93 
94  // Main action members
95  bool GetArchives(pkgAcquire *Owner,pkgSourceList *Sources,
96  pkgRecords *Recs);
97 
98  // Do the installation
99  OrderResult DoInstall(int statusFd=-1);
100 
101  // stuff that needs to be done before the fork() of a library that
102  // uses apt
103  OrderResult DoInstallPreFork() {
104  Res = OrderInstall();
105  return Res;
106  };
107 
108  // stuff that needs to be done after the fork
109  OrderResult DoInstallPostFork(int statusFd=-1);
110  bool FixMissing();
111 
113  inline std::set<std::string> GetDisappearedPackages() { return disappearedPkgs; };
114 
116  virtual ~pkgPackageManager();
117 };
118 
119 #endif