source/io/base.cpp

   1 #include "base.h"
   2 #include "poll.h"
   3
   4 using namespace std;
   5
   6 namespace Msp {
   7 namespace IO {
   8
   9 Base::Base():
  10         mode(M_READ),
  11         events(P_NONE),
  12         eof_flag(false)
  13 { }
  14
  15 Base::~Base()
  16 {
  17         signal_deleted.emit();
  18 }
  19
  20 bool Base::getline(string &line)
  21 {
  22         line.clear();
  23
  24         if(eof_flag)
  25                 return false;
  26
  27         while(1)
  28         {
  29                 int c = get();
  30                 if(c==-1 || c=='\n')
  31                         break;
  32                 line += c;
  33         }
  34
  35         return !eof_flag || !line.empty();
  36 }
  37
  38 int Base::get()
  39 {
  40         char c;
  41         if(do_read(&c, 1)==0)
  42                 return -1;
  43         return static_cast<unsigned char>(c);
  44 }
  45
  46 void Base::set_events(PollEvent e)
  47 {
  48         events = e;
  49         signal_events_changed.emit(events);
  50 }
  51
  52 void Base::event(PollEvent ev)
  53 {
  54         if(ev&P_INPUT)
  55                 signal_data_available.emit();
  56
  57         on_event(ev);
  58 }
  59
  60 } // namespace IO
  61 } // namespace Msp