267 // Applies an oop closure to all ref fields in code blobs
268 // iterated over in an object iteration.
269 class CodeBlobToOopClosure : public CodeBlobClosure {
270 OopClosure* _cl;
271 bool _fix_relocations;
272 protected:
273 void do_nmethod(nmethod* nm);
274 public:
275 CodeBlobToOopClosure(OopClosure* cl, bool fix_relocations) : _cl(cl), _fix_relocations(fix_relocations) {}
276 virtual void do_code_blob(CodeBlob* cb);
277
278 const static bool FixRelocations = true;
279 };
280
281 class MarkingCodeBlobClosure : public CodeBlobToOopClosure {
282 public:
283 MarkingCodeBlobClosure(OopClosure* cl, bool fix_relocations) : CodeBlobToOopClosure(cl, fix_relocations) {}
284 // Called for each code blob, but at most once per unique blob.
285
286 virtual void do_code_blob(CodeBlob* cb);
287
288 class MarkScope : public StackObj {
289 protected:
290 bool _active;
291 public:
292 MarkScope(bool activate = true);
293 // = { if (active) nmethod::oops_do_marking_prologue(); }
294 ~MarkScope();
295 // = { if (active) nmethod::oops_do_marking_epilogue(); }
296 };
297 };
298
299 // MonitorClosure is used for iterating over monitors in the monitors cache
300
301 class ObjectMonitor;
302
303 class MonitorClosure : public StackObj {
304 public:
305 // called for each monitor in cache
306 virtual void do_monitor(ObjectMonitor* m) = 0;
307 };
308
309 // A closure that is applied without any arguments.
310 class VoidClosure : public StackObj {
311 public:
312 // I would have liked to declare this a pure virtual, but that breaks
313 // in mysterious ways, for unknown reasons.
314 virtual void do_void();
315 };
316
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267 // Applies an oop closure to all ref fields in code blobs
268 // iterated over in an object iteration.
269 class CodeBlobToOopClosure : public CodeBlobClosure {
270 OopClosure* _cl;
271 bool _fix_relocations;
272 protected:
273 void do_nmethod(nmethod* nm);
274 public:
275 CodeBlobToOopClosure(OopClosure* cl, bool fix_relocations) : _cl(cl), _fix_relocations(fix_relocations) {}
276 virtual void do_code_blob(CodeBlob* cb);
277
278 const static bool FixRelocations = true;
279 };
280
281 class MarkingCodeBlobClosure : public CodeBlobToOopClosure {
282 public:
283 MarkingCodeBlobClosure(OopClosure* cl, bool fix_relocations) : CodeBlobToOopClosure(cl, fix_relocations) {}
284 // Called for each code blob, but at most once per unique blob.
285
286 virtual void do_code_blob(CodeBlob* cb);
287 };
288
289 // MonitorClosure is used for iterating over monitors in the monitors cache
290
291 class ObjectMonitor;
292
293 class MonitorClosure : public StackObj {
294 public:
295 // called for each monitor in cache
296 virtual void do_monitor(ObjectMonitor* m) = 0;
297 };
298
299 // A closure that is applied without any arguments.
300 class VoidClosure : public StackObj {
301 public:
302 // I would have liked to declare this a pure virtual, but that breaks
303 // in mysterious ways, for unknown reasons.
304 virtual void do_void();
305 };
306
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