6778647: snap(), snap_policy() should be renamed setup(), setup_policy()

Summary: Renamed Reference{Policy,Pocessor} methods from snap{,_policy}() to setup{,_policy}()
Reviewed-by: apetrusenko

src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.cpp

@@ -1961,7 +1961,7 @@ void CMSCollector::do_compaction_work(bool clear_all_soft_refs) {
 
   ref_processor()->set_enqueuing_is_done(false);
   ref_processor()->enable_discovery();
-  ref_processor()->snap_policy(clear_all_soft_refs);
+  ref_processor()->setup_policy(clear_all_soft_refs);
   // If an asynchronous collection finishes, the _modUnionTable is
   // all clear.  If we are assuming the collection from an asynchronous
   // collection, clear the _modUnionTable.
@@ -2386,7 +2386,7 @@ void CMSCollector::collect_in_foreground(bool clear_all_soft_refs) {
   }
 
   // Snapshot the soft reference policy to be used in this collection cycle.
-  ref_processor()->snap_policy(clear_all_soft_refs);
+  ref_processor()->setup_policy(clear_all_soft_refs);
 
   bool init_mark_was_synchronous = false; // until proven otherwise
   while (_collectorState != Idling) {
@@ -5683,7 +5683,7 @@ void CMSCollector::refProcessingWork(bool asynch, bool clear_all_soft_refs) {
   assert(rp->span().equals(_span), "Spans should be equal");
   assert(!rp->enqueuing_is_done(), "Enqueuing should not be complete");
   // Process weak references.
-  rp->snap_policy(clear_all_soft_refs);
+  rp->setup_policy(clear_all_soft_refs);
   verify_work_stacks_empty();
 
   CMSKeepAliveClosure cmsKeepAliveClosure(this, _span, &_markBitMap,

src/share/vm/gc_implementation/g1/concurrentMark.cpp

@@ -811,7 +811,7 @@ void ConcurrentMark::checkpointRootsInitialPost() {
   ReferenceProcessor* rp = g1h->ref_processor();
   rp->verify_no_references_recorded();
   rp->enable_discovery(); // enable ("weak") refs discovery
-  rp->snap_policy(false); // snapshot the soft ref policy to be used in this cycle
+  rp->setup_policy(false); // snapshot the soft ref policy to be used in this cycle
 
   SATBMarkQueueSet& satb_mq_set = JavaThread::satb_mark_queue_set();
   satb_mq_set.set_process_completed_threshold(G1SATBProcessCompletedThreshold);
@@ -1834,7 +1834,7 @@ void ConcurrentMark::weakRefsWork(bool clear_all_soft_refs) {
   ReferenceProcessor* rp = g1h->ref_processor();
 
   // Process weak references.
-  rp->snap_policy(clear_all_soft_refs);
+  rp->setup_policy(clear_all_soft_refs);
   assert(_markStack.isEmpty(), "mark stack should be empty");
 
   G1CMIsAliveClosure   g1IsAliveClosure  (g1h);

src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp

@@ -891,7 +891,7 @@ void G1CollectedHeap::do_collection(bool full, bool clear_all_soft_refs,
     ReferenceProcessorIsAliveMutator rp_is_alive_null(ref_processor(), NULL);
 
     ref_processor()->enable_discovery();
-    ref_processor()->snap_policy(clear_all_soft_refs);
+    ref_processor()->setup_policy(clear_all_soft_refs);
 
     // Do collection work
     {

src/share/vm/gc_implementation/g1/g1MarkSweep.cpp

@@ -35,7 +35,7 @@ void G1MarkSweep::invoke_at_safepoint(ReferenceProcessor* rp,
   assert(GenMarkSweep::ref_processor() == NULL, "no stomping");
   assert(rp != NULL, "should be non-NULL");
   GenMarkSweep::_ref_processor = rp;
-  rp->snap_policy(clear_all_softrefs);
+  rp->setup_policy(clear_all_softrefs);
 
   // When collecting the permanent generation methodOops may be moving,
   // so we either have to flush all bcp data or convert it into bci.
@@ -123,7 +123,7 @@ void G1MarkSweep::mark_sweep_phase1(bool& marked_for_unloading,
 
   // Process reference objects found during marking
   ReferenceProcessor* rp = GenMarkSweep::ref_processor();
-  rp->snap_policy(clear_all_softrefs);
+  rp->setup_policy(clear_all_softrefs);
   rp->process_discovered_references(&GenMarkSweep::is_alive,
                                     &GenMarkSweep::keep_alive,
                                     &GenMarkSweep::follow_stack_closure,

src/share/vm/gc_implementation/parNew/parNewGeneration.cpp

@@ -773,7 +773,7 @@ void ParNewGeneration::collect(bool   full,
   set_promo_failure_scan_stack_closure(&scan_without_gc_barrier);
   EvacuateFollowersClosureGeneral evacuate_followers(gch, _level,
     &scan_without_gc_barrier, &scan_with_gc_barrier);
-  rp->snap_policy(clear_all_soft_refs);
+  rp->setup_policy(clear_all_soft_refs);
   if (rp->processing_is_mt()) {
     ParNewRefProcTaskExecutor task_executor(*this, thread_state_set);
     rp->process_discovered_references(&is_alive, &keep_alive,

src/share/vm/gc_implementation/parallelScavenge/psMarkSweep.cpp

@@ -172,7 +172,7 @@ void PSMarkSweep::invoke_no_policy(bool clear_all_softrefs) {
     COMPILER2_PRESENT(DerivedPointerTable::clear());
 
     ref_processor()->enable_discovery();
-    ref_processor()->snap_policy(clear_all_softrefs);
+    ref_processor()->setup_policy(clear_all_softrefs);
 
     mark_sweep_phase1(clear_all_softrefs);
 
@@ -518,7 +518,7 @@ void PSMarkSweep::mark_sweep_phase1(bool clear_all_softrefs) {
 
   // Process reference objects found during marking
   {
-    ref_processor()->snap_policy(clear_all_softrefs);
+    ref_processor()->setup_policy(clear_all_softrefs);
     ref_processor()->process_discovered_references(
       is_alive_closure(), mark_and_push_closure(), follow_stack_closure(), NULL);
   }

src/share/vm/gc_implementation/parallelScavenge/psParallelCompact.cpp

@@ -1578,7 +1578,7 @@ void PSParallelCompact::invoke_no_policy(bool maximum_heap_compaction) {
     COMPILER2_PRESENT(DerivedPointerTable::clear());
 
     ref_processor()->enable_discovery();
-    ref_processor()->snap_policy(maximum_heap_compaction);
+    ref_processor()->setup_policy(maximum_heap_compaction);
 
     bool marked_for_unloading = false;
 

src/share/vm/gc_implementation/parallelScavenge/psScavenge.cpp

@@ -330,7 +330,7 @@ bool PSScavenge::invoke_no_policy() {
     COMPILER2_PRESENT(DerivedPointerTable::clear());
 
     reference_processor()->enable_discovery();
-    reference_processor()->snap_policy(false);
+    reference_processor()->setup_policy(false);
 
     // We track how much was promoted to the next generation for
     // the AdaptiveSizePolicy.
@@ -395,7 +395,7 @@ bool PSScavenge::invoke_no_policy() {
 
     // Process reference objects discovered during scavenge
     {
-      reference_processor()->snap_policy(false); // not always_clear
+      reference_processor()->setup_policy(false); // not always_clear
       PSKeepAliveClosure keep_alive(promotion_manager);
       PSEvacuateFollowersClosure evac_followers(promotion_manager);
       if (reference_processor()->processing_is_mt()) {

src/share/vm/memory/defNewGeneration.cpp

@@ -567,7 +567,7 @@ void DefNewGeneration::collect(bool   full,
 
   FastKeepAliveClosure keep_alive(this, &scan_weak_ref);
   ReferenceProcessor* rp = ref_processor();
-  rp->snap_policy(clear_all_soft_refs);
+  rp->setup_policy(clear_all_soft_refs);
   rp->process_discovered_references(&is_alive, &keep_alive, &evacuate_followers,
                                     NULL);
   if (!promotion_failed()) {

src/share/vm/memory/genCollectedHeap.cpp

@@ -525,7 +525,7 @@ void GenCollectedHeap::do_collection(bool  full,
           if (rp->discovery_is_atomic()) {
             rp->verify_no_references_recorded();
             rp->enable_discovery();
-            rp->snap_policy(clear_all_soft_refs);
+            rp->setup_policy(clear_all_soft_refs);
           } else {
             // collect() below will enable discovery as appropriate
           }

src/share/vm/memory/genMarkSweep.cpp

@@ -33,7 +33,7 @@ void GenMarkSweep::invoke_at_safepoint(int level, ReferenceProcessor* rp,
   assert(ref_processor() == NULL, "no stomping");
   assert(rp != NULL, "should be non-NULL");
   _ref_processor = rp;
-  rp->snap_policy(clear_all_softrefs);
+  rp->setup_policy(clear_all_softrefs);
 
   TraceTime t1("Full GC", PrintGC && !PrintGCDetails, true, gclog_or_tty);
 
@@ -246,7 +246,7 @@ void GenMarkSweep::mark_sweep_phase1(int level,
 
   // Process reference objects found during marking
   {
-    ref_processor()->snap_policy(clear_all_softrefs);
+    ref_processor()->setup_policy(clear_all_softrefs);
     ref_processor()->process_discovered_references(
       &is_alive, &keep_alive, &follow_stack_closure, NULL);
   }

src/share/vm/memory/referencePolicy.cpp

@@ -26,11 +26,11 @@
 # include "incls/_referencePolicy.cpp.incl"
 
 LRUCurrentHeapPolicy::LRUCurrentHeapPolicy() {
-  snap();
+  setup();
 }
 
 // Capture state (of-the-VM) information needed to evaluate the policy
-void LRUCurrentHeapPolicy::snap() {
+void LRUCurrentHeapPolicy::setup() {
   _max_interval = (Universe::get_heap_free_at_last_gc() / M) * SoftRefLRUPolicyMSPerMB;
   assert(_max_interval >= 0,"Sanity check");
 }
@@ -52,11 +52,11 @@ bool LRUCurrentHeapPolicy::should_clear_reference(oop p) {
 /////////////////////// MaxHeap //////////////////////
 
 LRUMaxHeapPolicy::LRUMaxHeapPolicy() {
-  snap();
+  setup();
 }
 
 // Capture state (of-the-VM) information needed to evaluate the policy
-void LRUMaxHeapPolicy::snap() {
+void LRUMaxHeapPolicy::setup() {
   size_t max_heap = MaxHeapSize;
   max_heap -= Universe::get_heap_used_at_last_gc();
   max_heap /= M;

src/share/vm/memory/referencePolicy.hpp

@@ -30,7 +30,7 @@ class ReferencePolicy : public CHeapObj {
  public:
   virtual bool should_clear_reference(oop p)       { ShouldNotReachHere(); return true; }
   // Capture state (of-the-VM) information needed to evaluate the policy
-  virtual void snap() { /* do nothing */ }
+  virtual void setup() { /* do nothing */ }
 };
 
 class NeverClearPolicy : public ReferencePolicy {
@@ -51,7 +51,7 @@ class LRUCurrentHeapPolicy : public ReferencePolicy {
   LRUCurrentHeapPolicy();
 
   // Capture state (of-the-VM) information needed to evaluate the policy
-  void snap();
+  void setup();
   bool should_clear_reference(oop p);
 };
 
@@ -63,6 +63,6 @@ class LRUMaxHeapPolicy : public ReferencePolicy {
   LRUMaxHeapPolicy();
 
   // Capture state (of-the-VM) information needed to evaluate the policy
-  void snap();
+  void setup();
   bool should_clear_reference(oop p);
 };

src/share/vm/memory/referenceProcessor.cpp

@@ -115,7 +115,7 @@ ReferenceProcessor::create_ref_processor(MemRegion          span,
     vm_exit_during_initialization("Could not allocate ReferenceProcessor object");
   }
   rp->set_is_alive_non_header(is_alive_non_header);
-  rp->snap_policy(false /* default soft ref policy */);
+  rp->setup_policy(false /* default soft ref policy */);
   return rp;
 }
 

src/share/vm/memory/referenceProcessor.hpp

@@ -98,10 +98,10 @@ class ReferenceProcessor : public CHeapObj {
   DiscoveredList* discovered_soft_refs() { return _discoveredSoftRefs; }
   static oop  sentinel_ref()             { return _sentinelRef; }
   static oop* adr_sentinel_ref()         { return &_sentinelRef; }
-  ReferencePolicy* snap_policy(bool always_clear) {
+  ReferencePolicy* setup_policy(bool always_clear) {
     _current_soft_ref_policy = always_clear ?
       _always_clear_soft_ref_policy : _default_soft_ref_policy;
-    _current_soft_ref_policy->snap();   // snapshot the policy threshold
+    _current_soft_ref_policy->setup();   // snapshot the policy threshold
     return _current_soft_ref_policy;
   }