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 #include <apt-pkg/macros.h>
  18
  19 #ifndef APT_8_CLEANER_HEADERS
  20 using std::vector;
  21 using std::map;
  22 #endif
  23
  24 class pkgDPkgPMPrivate;
  25
  26
  27 class pkgDPkgPM : public pkgPackageManager
  28 {
  29    private:
  30    pkgDPkgPMPrivate *d;
  31
  32    /** \brief record the disappear action and handle accordingly
  33
  34       dpkg let packages disappear then they have no files any longer and
  35       nothing depends on them. We need to collect this as dpkg as well as
  36       APT doesn't know beforehand that the package will disappear, so the
  37       only possible option is to tell the user afterwards about it.
  38       To enhance the experience we also try to forward the auto-install
  39       flag so the disappear-causer(s) are not autoremoved next time -
  40       for the transfer to happen the disappeared version needs to depend
  41       on the package the flag should be forwarded to and this package
  42       needs to declare a Replaces on the disappeared package.
  43       \param pkgname Name of the package that disappeared
  44    */
  45    void handleDisappearAction(std::string const &pkgname);
  46
  47    protected:
  48    int pkgFailures;
  49
  50    // progress reporting
  51    struct DpkgState
  52    {
  53       const char *state;     // the dpkg state (e.g. "unpack")
  54       const char *str;       // the human readable translation of the state
  55    };
  56
  57    // the dpkg states that the pkg will run through, the string is
  58    // the package, the vector contains the dpkg states that the package
  59    // will go through
  60    std::map<std::string,std::vector<struct DpkgState> > PackageOps;
  61    // the dpkg states that are already done; the string is the package
  62    // the int is the state that is already done (e.g. a package that is
  63    // going to be install is already in state "half-installed")
  64    std::map<std::string,unsigned int> PackageOpsDone;
  65
  66    // progress reporting
  67    unsigned int PackagesDone;
  68    unsigned int PackagesTotal;
  69
  70    struct Item
  71    {
  72       enum Ops {Install, Configure, Remove, Purge, ConfigurePending, TriggersPending} Op;
  73       std::string File;
  74       PkgIterator Pkg;
  75       Item(Ops Op,PkgIterator Pkg,std::string File = "") : Op(Op),
  76             File(File), Pkg(Pkg) {};
  77       Item() {};
  78
  79    };
  80    std::vector<Item> List;
  81
  82    // Helpers
  83    bool RunScriptsWithPkgs(const char *Cnf);
  84    __deprecated bool SendV2Pkgs(FILE *F);
  85    bool SendPkgsInfo(FILE * const F, unsigned int const &Version);
  86    void WriteHistoryTag(std::string const &tag, std::string value);
  87
  88    // Terminal progress
  89    void SetupTerminalScrollArea(int nr_scrolled_rows);
  90    void SendTerminalProgress(float percentage);
  91
  92    // apport integration
  93    void WriteApportReport(const char *pkgpath, const char *errormsg);
  94
  95    // dpkg log
  96    bool OpenLog();
  97    bool CloseLog();
  98
  99    // input processing
 100    void DoStdin(int master);
 101    void DoTerminalPty(int master);
 102    void DoDpkgStatusFd(int statusfd, int OutStatusFd);
 103    void ProcessDpkgStatusLine(int OutStatusFd, char *line);
 104
 105    // The Actuall installation implementation
 106    virtual bool Install(PkgIterator Pkg,std::string File);
 107    virtual bool Configure(PkgIterator Pkg);
 108    virtual bool Remove(PkgIterator Pkg,bool Purge = false);
 109    virtual bool Go(int StatusFd=-1);
 110    virtual void Reset();
 111
 112    public:
 113
 114    pkgDPkgPM(pkgDepCache *Cache);
 115    virtual ~pkgDPkgPM();
 116 };
 117
 118 void SigINT(int sig);
 119
 120 #endif