vm/gc.hpp

   1 namespace factor {
   2
   3 struct must_start_gc_again {
   4 };
   5
   6 enum gc_op {
   7   COLLECT_NURSERY_OP,
   8   COLLECT_AGING_OP,
   9   COLLECT_TO_TENURED_OP,
  10   COLLECT_FULL_OP,
  11   COLLECT_COMPACT_OP,
  12   COLLECT_GROWING_DATA_HEAP_OP
  13 };
  14
  15 // These are the phases of the gc cycles we record the times of.
  16 enum gc_phase {
  17   PHASE_CARD_SCAN,
  18   PHASE_CODE_SCAN,
  19   PHASE_DATA_SWEEP,
  20   PHASE_CODE_SWEEP,
  21   PHASE_DATA_COMPACTION,
  22   PHASE_MARKING
  23 };
  24
  25 struct gc_event {
  26   gc_op op;
  27   data_heap_room data_heap_before;
  28   allocator_room code_heap_before;
  29   data_heap_room data_heap_after;
  30   allocator_room code_heap_after;
  31   cell cards_scanned;
  32   cell decks_scanned;
  33   cell code_blocks_scanned;
  34   uint64_t start_time;
  35   cell total_time;
  36   cell times[6];
  37   uint64_t temp_time;
  38
  39   gc_event(gc_op op, factor_vm* parent);
  40   void reset_timer();
  41   void ended_phase(gc_phase phase);
  42   void ended_gc(factor_vm* parent);
  43 };
  44
  45 struct gc_state {
  46   gc_op op;
  47   uint64_t start_time;
  48   gc_event* event;
  49
  50   gc_state(gc_op op, factor_vm* parent);
  51   ~gc_state();
  52   void start_again(gc_op op_, factor_vm* parent);
  53 };
  54
  55 }