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 #ifndef APT_8_CLEANER_HEADERS
  19 using std::vector;
  20 using std::map;
  21 #endif
  22
  23 class pkgDPkgPMPrivate;
  24
  25 class pkgDPkgPM : public pkgPackageManager
  26 {
  27    private:
  28    pkgDPkgPMPrivate *d;
  29
  30    /** \brief record the disappear action and handle accordingly
  31
  32       dpkg let packages disappear then they have no files any longer and
  33       nothing depends on them. We need to collect this as dpkg as well as
  34       APT doesn't know beforehand that the package will disappear, so the
  35       only possible option is to tell the user afterwards about it.
  36       To enhance the experience we also try to forward the auto-install
  37       flag so the disappear-causer(s) are not autoremoved next time -
  38       for the transfer to happen the disappeared version needs to depend
  39       on the package the flag should be forwarded to and this package
  40       needs to declare a Replaces on the disappeared package.
  41       \param pkgname Name of the package that disappeared
  42    */
  43    void handleDisappearAction(std::string const &pkgname);
  44
  45    protected:
  46    int pkgFailures;
  47
  48    // progress reporting
  49    struct DpkgState
  50    {
  51       const char *state;     // the dpkg state (e.g. "unpack")
  52       const char *str;       // the human readable translation of the state
  53    };
  54
  55    // the dpkg states that the pkg will run through, the string is
  56    // the package, the vector contains the dpkg states that the package
  57    // will go through
  58    std::map<std::string,std::vector<struct DpkgState> > PackageOps;
  59    // the dpkg states that are already done; the string is the package
  60    // the int is the state that is already done (e.g. a package that is
  61    // going to be install is already in state "half-installed")
  62    std::map<std::string,unsigned int> PackageOpsDone;
  63
  64    // progress reporting
  65    unsigned int PackagesDone;
  66    unsigned int PackagesTotal;
  67
  68    struct Item
  69    {
  70       enum Ops {Install, Configure, Remove, Purge, ConfigurePending, TriggersPending} Op;
  71       std::string File;
  72       PkgIterator Pkg;
  73       Item(Ops Op,PkgIterator Pkg,std::string File = "") : Op(Op),
  74             File(File), Pkg(Pkg) {};
  75       Item() {};
  76
  77    };
  78    std::vector<Item> List;
  79
  80    // Helpers
  81    bool RunScriptsWithPkgs(const char *Cnf);
  82    bool SendV2Pkgs(FILE *F);
  83    void WriteHistoryTag(std::string const &tag, std::string value);
  84
  85    // apport integration
  86    void WriteApportReport(const char *pkgpath, const char *errormsg);
  87
  88    // dpkg log
  89    bool OpenLog();
  90    bool CloseLog();
  91
  92    // input processing
  93    void DoStdin(int master);
  94    void DoTerminalPty(int master);
  95    void DoDpkgStatusFd(int statusfd, int OutStatusFd);
  96    void ProcessDpkgStatusLine(int OutStatusFd, char *line);
  97
  98    // The Actuall installation implementation
  99    virtual bool Install(PkgIterator Pkg,std::string File);
 100    virtual bool Configure(PkgIterator Pkg);
 101    virtual bool Remove(PkgIterator Pkg,bool Purge = false);
 102    virtual bool Go(int StatusFd=-1);
 103    virtual void Reset();
 104
 105    public:
 106
 107    pkgDPkgPM(pkgDepCache *Cache);
 108    virtual ~pkgDPkgPM();
 109 };
 110
 111 void SigINT(int sig);
 112
 113 #endif