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comparison src/share/vm/code/dependencies.hpp @ 1123:167c2986d91b

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6843629: Make current hotspot build part of jdk5 control build Summary: Source changes for older compilers plus makefile changes. Reviewed-by: xlu
author phh
date Wed, 16 Dec 2009 12:54:49 -0500
parents a61af66fc99e
children c18cbe5936b8
comparison
equal deleted inserted replaced
1122:dcb15a6f342d 1123:167c2986d91b
468 // The change is structured as a single new type with any number of supers 468 // The change is structured as a single new type with any number of supers
469 // and implemented interface types. Other than the new type, any of the 469 // and implemented interface types. Other than the new type, any of the
470 // super types can be context types for a relevant dependency, which the 470 // super types can be context types for a relevant dependency, which the
471 // new type could invalidate. 471 // new type could invalidate.
472 class DepChange : public StackObj { 472 class DepChange : public StackObj {
473 private: 473 public:
474 enum ChangeType { 474 enum ChangeType {
475 NO_CHANGE = 0, // an uninvolved klass 475 NO_CHANGE = 0, // an uninvolved klass
476 Change_new_type, // a newly loaded type 476 Change_new_type, // a newly loaded type
477 Change_new_sub, // a super with a new subtype 477 Change_new_sub, // a super with a new subtype
478 Change_new_impl, // an interface with a new implementation 478 Change_new_impl, // an interface with a new implementation
479 CHANGE_LIMIT, 479 CHANGE_LIMIT,
480 Start_Klass = CHANGE_LIMIT // internal indicator for ContextStream 480 Start_Klass = CHANGE_LIMIT // internal indicator for ContextStream
481 }; 481 };
482 482
483 private:
483 // each change set is rooted in exactly one new type (at present): 484 // each change set is rooted in exactly one new type (at present):
484 KlassHandle _new_type; 485 KlassHandle _new_type;
485 486
486 void initialize(); 487 void initialize();
487 488
508 // ... 509 // ...
509 // } 510 // }
510 // } 511 // }
511 class ContextStream : public StackObj { 512 class ContextStream : public StackObj {
512 private: 513 private:
513 DepChange& _changes; 514 DepChange& _changes;
514 friend class DepChange; 515 friend class DepChange;
515 516
516 // iteration variables: 517 // iteration variables:
517 ChangeType _change_type; 518 ChangeType _change_type;
518 klassOop _klass; 519 klassOop _klass;
519 objArrayOop _ti_base; // i.e., transitive_interfaces 520 objArrayOop _ti_base; // i.e., transitive_interfaces
520 int _ti_index; 521 int _ti_index;
521 int _ti_limit; 522 int _ti_limit;
522 523
523 // start at the beginning: 524 // start at the beginning:
524 void start() { 525 void start() {
525 klassOop new_type = _changes.new_type(); 526 klassOop new_type = _changes.new_type();
526 _change_type = (new_type == NULL ? NO_CHANGE: Start_Klass); 527 _change_type = (new_type == NULL ? NO_CHANGE: Start_Klass);
528 _ti_base = NULL; 529 _ti_base = NULL;
529 _ti_index = 0; 530 _ti_index = 0;
530 _ti_limit = 0; 531 _ti_limit = 0;
531 } 532 }
532 533
534 public:
533 ContextStream(DepChange& changes) 535 ContextStream(DepChange& changes)
534 : _changes(changes) 536 : _changes(changes)
535 { start(); } 537 { start(); }
536 538
537 public:
538 ContextStream(DepChange& changes, No_Safepoint_Verifier& nsv) 539 ContextStream(DepChange& changes, No_Safepoint_Verifier& nsv)
539 : _changes(changes) 540 : _changes(changes)
540 // the nsv argument makes it safe to hold oops like _klass 541 // the nsv argument makes it safe to hold oops like _klass
541 { start(); } 542 { start(); }
542 543
543 bool next(); 544 bool next();
544 545
546 ChangeType change_type() { return _change_type; }
545 klassOop klass() { return _klass; } 547 klassOop klass() { return _klass; }
546 }; 548 };
547 friend class DepChange::ContextStream; 549 friend class DepChange::ContextStream;
548 550
549 void print(); 551 void print();