libs/garbagecollector/source/Collector_inline.h

   1 /*#io
   2 docCopyright("Steve Dekorte", 2002)
   3 docLicense("BSD revised")
   4 */
   5
   6 #ifdef COLLECTOR_C
   7 #define IO_IN_C_FILE
   8 #endif
   9 #include "Common_inline.h"
  10 #ifdef IO_DECLARE_INLINES
  11
  12 // inspecting markers -------------------
  13
  14 IOINLINE int Collector_markerIsWhite_(Collector *self, CollectorMarker *m)
  15 {
  16         return (self->whites->color == m->color);
  17 }
  18
  19 IOINLINE int Collector_markerIsGray_(Collector *self, CollectorMarker *m)
  20 {
  21         return (COLLECTOR_GRAY == m->color);
  22 }
  23
  24 IOINLINE int Collector_markerIsBlack_(Collector *self, CollectorMarker *m)
  25 {
  26         return (self->blacks->color == m->color);
  27 }
  28
  29 // changing marker colors -------------------
  30
  31 IOINLINE void Collector_makeFree_(Collector *self, CollectorMarker *v)
  32 {
  33         CollectorMarker_removeAndInsertAfter_((CollectorMarker *)v, self->freed);
  34 }
  35
  36 IOINLINE void Collector_makeWhite_(Collector *self, CollectorMarker *v)
  37 {
  38         CollectorMarker_removeAndInsertAfter_((CollectorMarker *)v, self->whites);
  39 }
  40
  41 IOINLINE void Collector_makeGray_(Collector *self, CollectorMarker *v)
  42 {
  43         CollectorMarker_removeAndInsertAfter_((CollectorMarker *)v, self->grays);
  44 }
  45
  46 IOINLINE void Collector_makeBlack_(Collector *self, CollectorMarker *v)
  47 {
  48         CollectorMarker_removeAndInsertAfter_((CollectorMarker *)v, self->blacks);
  49 }
  50
  51 IOINLINE void Collector_makeGrayIfWhite_(Collector *self, void *v)
  52 {
  53         if (Collector_markerIsWhite_(self, (CollectorMarker *)v))
  54         {
  55                 Collector_makeGray_(self, v);
  56         }
  57 }
  58
  59 /*
  60  IOINLINE void Collector_makeFreed_(Collector *self, void *v)
  61  {
  62          CollectorMarker_removeAndInsertAfter_(v, self->freed);
  63  }
  64  */
  65
  66 IOINLINE void *Collector_value_addingRefTo_(Collector *self, void *v, void *ref)
  67 {
  68         if (Collector_markerIsBlack_(self, (CollectorMarker *)v) && Collector_markerIsWhite_(self, (CollectorMarker *)ref))
  69         {
  70                 Collector_makeGray_(self, ref);
  71         }
  72
  73         return ref;
  74 }
  75
  76 #undef IO_IN_C_FILE
  77 #endif