apt-pkg/iprogress.h

   1 #ifndef PKGLIB_IPROGRESS_H
   2 #define PKGLIB_IPROGRESS_H
   3
   4 #include <string>
   5 #include <unistd.h>
   6
   7
   8 namespace APT {
   9 namespace Progress {
  10
  11  class PackageManager
  12  {
  13  private:
  14     /** \brief dpointer placeholder */
  15     void *d;
  16
  17  protected:
  18     std::string progress_str;
  19     float percentage;
  20     int last_reported_progress;
  21
  22  public:
  23     PackageManager()
  24        : percentage(0.0), last_reported_progress(-1) {};
  25     virtual ~PackageManager() {};
  26
  27     virtual void Start() {};
  28     virtual void Stop() {};
  29
  30     virtual pid_t fork() {return fork(); };
  31
  32     virtual void Pulse() {};
  33     virtual long GetPulseInterval() {
  34          return 500000;
  35     };
  36
  37     virtual bool StatusChanged(std::string PackageName,
  38                                unsigned int StepsDone,
  39                                unsigned int TotalSteps,
  40                                std::string HumanReadableAction) ;
  41     virtual void Error(std::string PackageName,
  42                        unsigned int StepsDone,
  43                        unsigned int TotalSteps,
  44                        std::string ErrorMessage) {};
  45     virtual void ConffilePrompt(std::string PackageName,
  46                                 unsigned int StepsDone,
  47                                 unsigned int TotalSteps,
  48                                 std::string ConfMessage) {};
  49  };
  50
  51  class PackageManagerProgressFd : public PackageManager
  52  {
  53  protected:
  54     int OutStatusFd;
  55     int StepsDone;
  56     int StepsTotal;
  57     void WriteToStatusFd(std::string msg);
  58
  59  public:
  60     PackageManagerProgressFd(int progress_fd);
  61
  62     virtual void Start();
  63     virtual void Stop();
  64
  65     virtual bool StatusChanged(std::string PackageName,
  66                                unsigned int StepsDone,
  67                                unsigned int TotalSteps,
  68                                std::string HumanReadableAction);
  69     virtual void Error(std::string PackageName,
  70                        unsigned int StepsDone,
  71                        unsigned int TotalSteps,
  72                           std::string ErrorMessage);
  73     virtual void ConffilePrompt(std::string PackageName,
  74                                 unsigned int StepsDone,
  75                                 unsigned int TotalSteps,
  76                                    std::string ConfMessage);
  77
  78  };
  79
  80  class PackageManagerFancy : public PackageManager
  81  {
  82  protected:
  83     int nr_terminal_rows;
  84     void SetupTerminalScrollArea(int nr_rows);
  85
  86  public:
  87     PackageManagerFancy();
  88     virtual void Start();
  89     virtual void Stop();
  90     virtual bool StatusChanged(std::string PackageName,
  91                                unsigned int StepsDone,
  92                                unsigned int TotalSteps,
  93                                std::string HumanReadableAction);
  94  };
  95
  96  class PackageManagerText : public PackageManager
  97  {
  98  public:
  99     virtual bool StatusChanged(std::string PackageName,
 100                                unsigned int StepsDone,
 101                                unsigned int TotalSteps,
 102                                std::string HumanReadableAction);
 103  };
 104
 105
 106 }; // namespace Progress
 107 }; // namespace APT
 108
 109 #endif