apt-pkg/deb/dpkgpm.h

   1 // -*- mode: cpp; mode: fold -*-
   2 // Description                                                          /*{{{*/
   3 // $Id: dpkgpm.h,v 1.8 2001/05/07 05:05:13 jgg Exp $
   4 /* ######################################################################
   5
   6    DPKG Package Manager - Provide an interface to dpkg
   7
   8    ##################################################################### */
   9                                                                         /*}}}*/
  10 #ifndef PKGLIB_DPKGPM_H
  11 #define PKGLIB_DPKGPM_H
  12
  13 #include <apt-pkg/packagemanager.h>
  14 #include <vector>
  15 #include <map>
  16 #include <stdio.h>
  17
  18 using std::vector;
  19 using std::map;
  20
  21 class pkgDPkgPMPrivate;
  22
  23 class pkgDPkgPM : public pkgPackageManager
  24 {
  25    private:
  26    pkgDPkgPMPrivate *d;
  27
  28    /** \brief record the disappear action and handle accordingly
  29
  30       dpkg let packages disappear then they have no files any longer and
  31       nothing depends on them. We need to collect this as dpkg as well as
  32       APT doesn't know beforehand that the package will disappear, so the
  33       only possible option is to tell the user afterwards about it.
  34       To enhance the experience we also try to forward the auto-install
  35       flag so the disappear-causer(s) are not autoremoved next time -
  36       for the transfer to happen the disappeared version needs to depend
  37       on the package the flag should be forwarded to and this package
  38       needs to declare a Replaces on the disappeared package.
  39       \param pkgname Name of the package that disappeared
  40    */
  41    void handleDisappearAction(string const &pkgname);
  42
  43    protected:
  44    int pkgFailures;
  45
  46    // progress reporting
  47    struct DpkgState
  48    {
  49       const char *state;     // the dpkg state (e.g. "unpack")
  50       const char *str;       // the human readable translation of the state
  51    };
  52
  53    // the dpkg states that the pkg will run through, the string is
  54    // the package, the vector contains the dpkg states that the package
  55    // will go through
  56    map<string,vector<struct DpkgState> > PackageOps;
  57    // the dpkg states that are already done; the string is the package
  58    // the int is the state that is already done (e.g. a package that is
  59    // going to be install is already in state "half-installed")
  60    map<string,unsigned int> PackageOpsDone;
  61
  62    // progress reporting
  63    unsigned int PackagesDone;
  64    unsigned int PackagesTotal;
  65
  66    struct Item
  67    {
  68       enum Ops {Install, Configure, Remove, Purge, ConfigurePending, TriggersPending} Op;
  69       string File;
  70       PkgIterator Pkg;
  71       Item(Ops Op,PkgIterator Pkg,string File = "") : Op(Op),
  72             File(File), Pkg(Pkg) {};
  73       Item() {};
  74
  75    };
  76    vector<Item> List;
  77
  78    // Helpers
  79    bool RunScriptsWithPkgs(const char *Cnf);
  80    bool SendV2Pkgs(FILE *F);
  81    void WriteHistoryTag(string const &tag, string value);
  82
  83    // apport integration
  84    void WriteApportReport(const char *pkgpath, const char *errormsg);
  85
  86    // dpkg log
  87    bool OpenLog();
  88    bool CloseLog();
  89
  90    // input processing
  91    void DoStdin(int master);
  92    void DoTerminalPty(int master);
  93    void DoDpkgStatusFd(int statusfd, int OutStatusFd);
  94    void ProcessDpkgStatusLine(int OutStatusFd, char *line);
  95
  96    // The Actuall installation implementation
  97    virtual bool Install(PkgIterator Pkg,string File);
  98    virtual bool Configure(PkgIterator Pkg);
  99    virtual bool Remove(PkgIterator Pkg,bool Purge = false);
 100    virtual bool Go(int StatusFd=-1);
 101    virtual void Reset();
 102
 103    public:
 104
 105    pkgDPkgPM(pkgDepCache *Cache);
 106    virtual ~pkgDPkgPM();
 107 };
 108
 109 #endif