354 // the closure is applied to:
355 // "SO_None" does none;
356 enum ScanningOption {
357 SO_None = 0x0,
358 SO_AllCodeCache = 0x8,
359 SO_ScavengeCodeCache = 0x10
360 };
361
362 protected:
363 void process_roots(StrongRootsScope* scope,
364 ScanningOption so,
365 OopClosure* strong_roots,
366 CLDClosure* strong_cld_closure,
367 CLDClosure* weak_cld_closure,
368 CodeBlobToOopClosure* code_roots);
369
370 virtual void gc_prologue(bool full);
371 virtual void gc_epilogue(bool full);
372
373 public:
374 void young_process_roots(StrongRootsScope* scope,
375 OopsInGenClosure* root_closure,
376 OopsInGenClosure* old_gen_closure,
377 CLDClosure* cld_closure);
378
379 void full_process_roots(StrongRootsScope* scope,
380 bool is_adjust_phase,
381 ScanningOption so,
382 bool only_strong_roots,
383 OopClosure* root_closure,
384 CLDClosure* cld_closure);
385
386 // Apply "root_closure" to all the weak roots of the system.
387 // These include JNI weak roots, string table,
388 // and referents of reachable weak refs.
389 void gen_process_weak_roots(OopClosure* root_closure);
390
391 // Set the saved marks of generations, if that makes sense.
392 // In particular, if any generation might iterate over the oops
393 // in other generations, it should call this method.
394 void save_marks();
395
396 // Returns "true" iff no allocations have occurred since the last
397 // call to "save_marks".
398 bool no_allocs_since_save_marks();
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354 // the closure is applied to:
355 // "SO_None" does none;
356 enum ScanningOption {
357 SO_None = 0x0,
358 SO_AllCodeCache = 0x8,
359 SO_ScavengeCodeCache = 0x10
360 };
361
362 protected:
363 void process_roots(StrongRootsScope* scope,
364 ScanningOption so,
365 OopClosure* strong_roots,
366 CLDClosure* strong_cld_closure,
367 CLDClosure* weak_cld_closure,
368 CodeBlobToOopClosure* code_roots);
369
370 virtual void gc_prologue(bool full);
371 virtual void gc_epilogue(bool full);
372
373 public:
374 void full_process_roots(StrongRootsScope* scope,
375 bool is_adjust_phase,
376 ScanningOption so,
377 bool only_strong_roots,
378 OopClosure* root_closure,
379 CLDClosure* cld_closure);
380
381 // Apply "root_closure" to all the weak roots of the system.
382 // These include JNI weak roots, string table,
383 // and referents of reachable weak refs.
384 void gen_process_weak_roots(OopClosure* root_closure);
385
386 // Set the saved marks of generations, if that makes sense.
387 // In particular, if any generation might iterate over the oops
388 // in other generations, it should call this method.
389 void save_marks();
390
391 // Returns "true" iff no allocations have occurred since the last
392 // call to "save_marks".
393 bool no_allocs_since_save_marks();
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