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src/hotspot/share/gc/shenandoah/heuristics/shenandoahCompactHeuristics.cpp

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@@ -25,16 +25,17 @@
  #include "precompiled.hpp"
  
  #include "gc/shenandoah/shenandoahCollectionSet.hpp"
  #include "gc/shenandoah/heuristics/shenandoahCompactHeuristics.hpp"
  #include "gc/shenandoah/shenandoahFreeSet.hpp"
- #include "gc/shenandoah/shenandoahHeap.inline.hpp"
+ #include "gc/shenandoah/shenandoahGeneration.hpp"
  #include "gc/shenandoah/shenandoahHeapRegion.inline.hpp"
  #include "logging/log.hpp"
  #include "logging/logTag.hpp"
  
- ShenandoahCompactHeuristics::ShenandoahCompactHeuristics() : ShenandoahHeuristics() {
+ ShenandoahCompactHeuristics::ShenandoahCompactHeuristics(ShenandoahGeneration* generation) :
+   ShenandoahHeuristics(generation) {
    SHENANDOAH_ERGO_ENABLE_FLAG(ExplicitGCInvokesConcurrent);
    SHENANDOAH_ERGO_ENABLE_FLAG(ShenandoahImplicitGCInvokesConcurrent);
    SHENANDOAH_ERGO_ENABLE_FLAG(ShenandoahUncommit);
    SHENANDOAH_ERGO_ENABLE_FLAG(ShenandoahAlwaysClearSoftRefs);
    SHENANDOAH_ERGO_OVERRIDE_DEFAULT(ShenandoahAllocationThreshold,  10);

@@ -43,15 +44,13 @@
    SHENANDOAH_ERGO_OVERRIDE_DEFAULT(ShenandoahGuaranteedGCInterval, 30000);
    SHENANDOAH_ERGO_OVERRIDE_DEFAULT(ShenandoahGarbageThreshold,     10);
  }
  
  bool ShenandoahCompactHeuristics::should_start_gc() {
-   ShenandoahHeap* heap = ShenandoahHeap::heap();
- 
-   size_t max_capacity = heap->max_capacity();
-   size_t capacity = heap->soft_max_capacity();
-   size_t available = heap->free_set()->available();
+   size_t max_capacity = _generation->max_capacity();
+   size_t capacity = _generation->soft_max_capacity();
+   size_t available = _generation->available();
  
    // Make sure the code below treats available without the soft tail.
    size_t soft_tail = max_capacity - capacity;
    available = (available > soft_tail) ? (available - soft_tail) : 0;
  

@@ -63,11 +62,11 @@
                   byte_size_in_proper_unit(available),     proper_unit_for_byte_size(available),
                   byte_size_in_proper_unit(min_threshold), proper_unit_for_byte_size(min_threshold));
      return true;
    }
  
-   size_t bytes_allocated = heap->bytes_allocated_since_gc_start();
+   size_t bytes_allocated = _generation->bytes_allocated_since_gc_start();
    if (bytes_allocated > threshold_bytes_allocated) {
      log_info(gc)("Trigger: Allocated since last cycle (" SIZE_FORMAT "%s) is larger than allocation threshold (" SIZE_FORMAT "%s)",
                   byte_size_in_proper_unit(bytes_allocated),           proper_unit_for_byte_size(bytes_allocated),
                   byte_size_in_proper_unit(threshold_bytes_allocated), proper_unit_for_byte_size(threshold_bytes_allocated));
      return true;
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