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src/hotspot/share/gc/shared/genCollectedHeap.cpp
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@@ -60,19 +60,27 @@
#include "utilities/formatBuffer.hpp"
#include "utilities/macros.hpp"
#include "utilities/stack.inline.hpp"
#include "utilities/vmError.hpp"
-GenCollectedHeap::GenCollectedHeap(GenCollectorPolicy *policy) :
+GenCollectedHeap::GenCollectedHeap(GenCollectorPolicy *policy,
+ Generation::Name young,
+ Generation::Name old) :
CollectedHeap(),
_rem_set(NULL),
+ _young_gen_spec(new GenerationSpec(young,
+ policy->initial_young_size(),
+ policy->max_young_size(),
+ policy->gen_alignment())),
+ _old_gen_spec(new GenerationSpec(old,
+ policy->initial_old_size(),
+ policy->max_old_size(),
+ policy->gen_alignment())),
_gen_policy(policy),
_soft_ref_gen_policy(),
_process_strong_tasks(new SubTasksDone(GCH_PS_NumElements)),
- _full_collections_completed(0)
-{
- assert(policy != NULL, "Sanity check");
+ _full_collections_completed(0) {
}
jint GenCollectedHeap::initialize() {
// While there are no constraints in the GC code that HeapWordSize
// be any particular value, there are multiple other areas in the
@@ -99,16 +107,16 @@
initialize_reserved_region((HeapWord*)heap_rs.base(), (HeapWord*)(heap_rs.base() + heap_rs.size()));
_rem_set = new CardTableRS(reserved_region());
set_barrier_set(rem_set()->bs());
- ReservedSpace young_rs = heap_rs.first_part(gen_policy()->young_gen_spec()->max_size(), false, false);
- _young_gen = gen_policy()->young_gen_spec()->init(young_rs, rem_set());
- heap_rs = heap_rs.last_part(gen_policy()->young_gen_spec()->max_size());
+ ReservedSpace young_rs = heap_rs.first_part(_young_gen_spec->max_size(), false, false);
+ _young_gen = _young_gen_spec->init(young_rs, rem_set());
+ heap_rs = heap_rs.last_part(_young_gen_spec->max_size());
- ReservedSpace old_rs = heap_rs.first_part(gen_policy()->old_gen_spec()->max_size(), false, false);
- _old_gen = gen_policy()->old_gen_spec()->init(old_rs, rem_set());
+ ReservedSpace old_rs = heap_rs.first_part(_old_gen_spec->max_size(), false, false);
+ _old_gen = _old_gen_spec->init(old_rs, rem_set());
clear_incremental_collection_failed();
return JNI_OK;
}
@@ -127,16 +135,13 @@
ReservedSpace* heap_rs){
// Now figure out the total size.
const size_t pageSize = UseLargePages ? os::large_page_size() : os::vm_page_size();
assert(alignment % pageSize == 0, "Must be");
- GenerationSpec* young_spec = gen_policy()->young_gen_spec();
- GenerationSpec* old_spec = gen_policy()->old_gen_spec();
-
// Check for overflow.
- size_t total_reserved = young_spec->max_size() + old_spec->max_size();
- if (total_reserved < young_spec->max_size()) {
+ size_t total_reserved = _young_gen_spec->max_size() + _old_gen_spec->max_size();
+ if (total_reserved < _young_gen_spec->max_size()) {
vm_exit_during_initialization("The size of the object heap + VM data exceeds "
"the maximum representable size");
}
assert(total_reserved % alignment == 0,
"Gen size; total_reserved=" SIZE_FORMAT ", alignment="
@@ -170,10 +175,18 @@
void GenCollectedHeap::ref_processing_init() {
_young_gen->ref_processor_init();
_old_gen->ref_processor_init();
}
+GenerationSpec* GenCollectedHeap::young_gen_spec() const {
+ return _young_gen_spec;
+}
+
+GenerationSpec* GenCollectedHeap::old_gen_spec() const {
+ return _old_gen_spec;
+}
+
size_t GenCollectedHeap::capacity() const {
return _young_gen->capacity() + _old_gen->capacity();
}
size_t GenCollectedHeap::used() const {
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