src/servers/mail/LEDAnimation.cpp

   1
   2
   3 #include "LEDAnimation.h"
   4
   5 #include <InterfaceDefs.h>
   6
   7 #include <stdio.h>
   8
   9 #define SNOOZE_TIME 150000
  10
  11
  12 LEDAnimation::LEDAnimation()
  13         :
  14         fThread(-1),
  15         fRunning(false),
  16         fOrigModifiers(::modifiers())
  17 {
  18 }
  19
  20
  21 LEDAnimation::~LEDAnimation()
  22 {
  23         Stop();
  24 }
  25
  26
  27 void
  28 LEDAnimation::Start()
  29 {
  30         // don't do anything if the thread is already running
  31         if (fThread >= 0)
  32                 return;
  33
  34         fOrigModifiers = ::modifiers();
  35         ::set_keyboard_locks(0);
  36         fRunning = true;
  37         fThread = ::spawn_thread(AnimationThread,"LED thread",B_NORMAL_PRIORITY,this);
  38         ::resume_thread(fThread);
  39 }
  40
  41
  42 void
  43 LEDAnimation::Stop()
  44 {
  45         // don't do anything if the thread doesn't run
  46         if (fThread < 0)
  47                 return;
  48
  49         fRunning = false;
  50         status_t result;
  51         ::wait_for_thread(fThread,&result);
  52
  53         ::set_keyboard_locks(fOrigModifiers);
  54 }
  55
  56
  57 int32
  58 LEDAnimation::AnimationThread(void* data)
  59 {
  60         LEDAnimation *anim = (LEDAnimation*)data;
  61
  62         while (anim->fRunning) {
  63                 LED(B_NUM_LOCK,true);
  64                 LED(B_NUM_LOCK,false);
  65
  66                 LED(B_CAPS_LOCK,true);
  67                 LED(B_CAPS_LOCK,false);
  68
  69                 LED(B_SCROLL_LOCK,true);
  70                 LED(B_SCROLL_LOCK,false);
  71
  72                 LED(B_CAPS_LOCK,true);
  73                 LED(B_CAPS_LOCK,false);
  74         }
  75         anim->fThread = -1;
  76         return 0;
  77 }
  78
  79
  80 void
  81 LEDAnimation::LED(uint32 mod,bool on)
  82 {
  83         uint32 current_modifiers = ::modifiers();
  84         if (on)
  85                 current_modifiers |= mod;
  86         else
  87                 current_modifiers &= ~mod;
  88         ::set_keyboard_locks(current_modifiers);
  89         if (on)
  90                 ::snooze(SNOOZE_TIME);
  91 }