18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #include "precompiled.hpp"
  26 #include "memory/iterator.hpp"
  27 #include "oops/oop.inline.hpp"
  28 
  29 void KlassToOopClosure::do_klass(Klass* k) {
  30   assert(_oop_closure != NULL, "Not initialized?");
  31   k->oops_do(_oop_closure);
  32 }
  33 
  34 void CLDToOopClosure::do_cld(ClassLoaderData* cld) {
  35   cld->oops_do(_oop_closure, &_klass_closure, _must_claim_cld);
  36 }
  37 




  38 void ObjectToOopClosure::do_object(oop obj) {
  39   obj->oop_iterate(_cl);
  40 }
  41 
  42 void VoidClosure::do_void() {
  43   ShouldNotCallThis();
  44 }
  45 














  46 MarkingCodeBlobClosure::MarkScope::MarkScope(bool activate)
  47   : _active(activate)
  48 {
  49   if (_active)  nmethod::oops_do_marking_prologue();
  50 }
  51 
  52 MarkingCodeBlobClosure::MarkScope::~MarkScope() {
  53   if (_active)  nmethod::oops_do_marking_epilogue();
  54 }
  55 
  56 void MarkingCodeBlobClosure::do_code_blob(CodeBlob* cb) {
  57   nmethod* nm = cb->as_nmethod_or_null();
  58   if (nm == NULL)  return;
  59   if (!nm->test_set_oops_do_mark()) {
  60     NOT_PRODUCT(if (TraceScavenge)  nm->print_on(tty, "oops_do, 1st visit\n"));
  61     do_newly_marked_nmethod(nm);
  62   } else {
  63     NOT_PRODUCT(if (TraceScavenge)  nm->print_on(tty, "oops_do, skipped on 2nd visit\n"));
  64   }
  65 }
  66 
  67 void CodeBlobToOopClosure::do_newly_marked_nmethod(nmethod* nm) {
  68   nm->oops_do(_cl, /*allow_zombie=*/ false);
  69 }
  70 
  71 void CodeBlobToOopClosure::do_code_blob(CodeBlob* cb) {
  72   if (!_do_marking) {
  73     nmethod* nm = cb->as_nmethod_or_null();
  74     NOT_PRODUCT(if (TraceScavenge && Verbose && nm != NULL)  nm->print_on(tty, "oops_do, unmarked visit\n"));
  75     // This assert won't work, since there are lots of mini-passes
  76     // (mostly in debug mode) that co-exist with marking phases.
  77     //assert(!(cb->is_nmethod() && ((nmethod*)cb)->test_oops_do_mark()), "found marked nmethod during mark-free phase");
  78     if (nm != NULL) {
  79       nm->oops_do(_cl);
  80     }
  81   } else {
  82     MarkingCodeBlobClosure::do_code_blob(cb);
  83   }
  84 }
  85 
  86 

  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #include "precompiled.hpp"
  26 #include "memory/iterator.hpp"
  27 #include "oops/oop.inline.hpp"
  28 
  29 void KlassToOopClosure::do_klass(Klass* k) {
  30   assert(_oop_closure != NULL, "Not initialized?");
  31   k->oops_do(_oop_closure);
  32 }
  33 
  34 void CLDToOopClosure::do_cld(ClassLoaderData* cld) {
  35   cld->oops_do(_oop_closure, &_klass_closure, _must_claim_cld);
  36 }
  37 
  38 void CLDToKlassAndOopClosure::do_cld(ClassLoaderData* cld) {
  39   cld->oops_do(_oop_closure, _klass_closure, _must_claim_cld);
  40 }
  41 
  42 void ObjectToOopClosure::do_object(oop obj) {
  43   obj->oop_iterate(_cl);
  44 }
  45 
  46 void VoidClosure::do_void() {
  47   ShouldNotCallThis();
  48 }
  49 
  50 void CodeBlobToOopClosure::do_nmethod(nmethod* nm) {
  51   nm->oops_do(_cl);
  52   if (_fix_relocations) {
  53     nm->fix_oop_relocations();
  54   }
  55 }
  56 
  57 void CodeBlobToOopClosure::do_code_blob(CodeBlob* cb) {
  58   nmethod* nm = cb->as_nmethod_or_null();
  59   if (nm != NULL) {
  60     do_nmethod(nm);
  61   }
  62 }
  63 
  64 MarkingCodeBlobClosure::MarkScope::MarkScope(bool activate)
  65   : _active(activate)
  66 {
  67   if (_active)  nmethod::oops_do_marking_prologue();
  68 }
  69 
  70 MarkingCodeBlobClosure::MarkScope::~MarkScope() {
  71   if (_active)  nmethod::oops_do_marking_epilogue();
  72 }
  73 
  74 void MarkingCodeBlobClosure::do_code_blob(CodeBlob* cb) {
  75   nmethod* nm = cb->as_nmethod_or_null();
  76   if (nm != NULL && !nm->test_set_oops_do_mark()) {
  77     do_nmethod(nm);




  78   }
  79 }