297 }
298
299 static void* shared_metaspace_base() { return _shared_metaspace_base; }
300 static void* shared_metaspace_top() { return _shared_metaspace_top; }
301
302 #define METASPACE_OBJ_TYPES_DO(f) \
303 f(Class) \
304 f(Symbol) \
305 f(TypeArrayU1) \
306 f(TypeArrayU2) \
307 f(TypeArrayU4) \
308 f(TypeArrayU8) \
309 f(TypeArrayOther) \
310 f(Method) \
311 f(ConstMethod) \
312 f(MethodData) \
313 f(ConstantPool) \
314 f(ConstantPoolCache) \
315 f(Annotations) \
316 f(MethodCounters) \
317 f(SharedClassPathEntry) \
318 f(RecordComponent)
319
320 #define METASPACE_OBJ_TYPE_DECLARE(name) name ## Type,
321 #define METASPACE_OBJ_TYPE_NAME_CASE(name) case name ## Type: return #name;
322
323 enum Type {
324 // Types are MetaspaceObj::ClassType, MetaspaceObj::SymbolType, etc
325 METASPACE_OBJ_TYPES_DO(METASPACE_OBJ_TYPE_DECLARE)
326 _number_of_types
327 };
328
329 static const char * type_name(Type type) {
330 switch(type) {
331 METASPACE_OBJ_TYPES_DO(METASPACE_OBJ_TYPE_NAME_CASE)
332 default:
333 ShouldNotReachHere();
334 return nullptr;
335 }
336 }
337
338 static MetaspaceObj::Type array_type(size_t elem_size) {
339 switch (elem_size) {
340 case 1: return TypeArrayU1Type;
341 case 2: return TypeArrayU2Type;
342 case 4: return TypeArrayU4Type;
343 case 8: return TypeArrayU8Type;
344 default:
345 return TypeArrayOtherType;
346 }
347 }
348
349 void* operator new(size_t size, ClassLoaderData* loader_data,
350 size_t word_size,
351 Type type, JavaThread* thread) throw();
352 // can't use TRAPS from this header file.
353 void* operator new(size_t size, ClassLoaderData* loader_data,
354 size_t word_size,
355 Type type) throw();
356 void operator delete(void* p) { ShouldNotCallThis(); }
357
358 // Declare a *static* method with the same signature in any subclass of MetaspaceObj
359 // that should be read-only by default. See symbol.hpp for an example. This function
360 // is used by the templates in metaspaceClosure.hpp
361 static bool is_read_only_by_default() { return false; }
362 };
363
364 // Base class for classes that constitute name spaces.
365
366 class Arena;
367
368 extern char* resource_allocate_bytes(size_t size,
369 AllocFailType alloc_failmode = AllocFailStrategy::EXIT_OOM);
370 extern char* resource_allocate_bytes(Thread* thread, size_t size,
371 AllocFailType alloc_failmode = AllocFailStrategy::EXIT_OOM);
372 extern char* resource_reallocate_bytes( char *old, size_t old_size, size_t new_size,
373 AllocFailType alloc_failmode = AllocFailStrategy::EXIT_OOM);
374 extern void resource_free_bytes( Thread* thread, char *old, size_t size );
375
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297 }
298
299 static void* shared_metaspace_base() { return _shared_metaspace_base; }
300 static void* shared_metaspace_top() { return _shared_metaspace_top; }
301
302 #define METASPACE_OBJ_TYPES_DO(f) \
303 f(Class) \
304 f(Symbol) \
305 f(TypeArrayU1) \
306 f(TypeArrayU2) \
307 f(TypeArrayU4) \
308 f(TypeArrayU8) \
309 f(TypeArrayOther) \
310 f(Method) \
311 f(ConstMethod) \
312 f(MethodData) \
313 f(ConstantPool) \
314 f(ConstantPoolCache) \
315 f(Annotations) \
316 f(MethodCounters) \
317 f(RecordComponent) \
318 f(KlassTrainingData) \
319 f(MethodTrainingData) \
320 f(CompileTrainingData) \
321 f(SharedClassPathEntry)
322
323 #define METASPACE_OBJ_TYPE_DECLARE(name) name ## Type,
324 #define METASPACE_OBJ_TYPE_NAME_CASE(name) case name ## Type: return #name;
325
326 enum Type {
327 // Types are MetaspaceObj::ClassType, MetaspaceObj::SymbolType, etc
328 METASPACE_OBJ_TYPES_DO(METASPACE_OBJ_TYPE_DECLARE)
329 _number_of_types
330 };
331
332 static const char * type_name(Type type) {
333 switch(type) {
334 METASPACE_OBJ_TYPES_DO(METASPACE_OBJ_TYPE_NAME_CASE)
335 default:
336 ShouldNotReachHere();
337 return nullptr;
338 }
339 }
340
341 static bool is_training_data(Type type) {
342 return (type == Type::KlassTrainingDataType) ||
343 (type == Type::MethodTrainingDataType) ||
344 (type == Type::CompileTrainingDataType);
345 }
346
347 static MetaspaceObj::Type array_type(size_t elem_size) {
348 switch (elem_size) {
349 case 1: return TypeArrayU1Type;
350 case 2: return TypeArrayU2Type;
351 case 4: return TypeArrayU4Type;
352 case 8: return TypeArrayU8Type;
353 default:
354 return TypeArrayOtherType;
355 }
356 }
357
358 void* operator new(size_t size, ClassLoaderData* loader_data,
359 size_t word_size,
360 Type type, JavaThread* thread) throw();
361 // can't use TRAPS from this header file.
362 void* operator new(size_t size, ClassLoaderData* loader_data,
363 size_t word_size,
364 Type type) throw();
365
366 // HACK -- this is used for allocating training data. See JDK-8331086
367 void* operator new(size_t size, MEMFLAGS flags) throw();
368 void operator delete(void* p) { ShouldNotCallThis(); }
369
370 // Declare a *static* method with the same signature in any subclass of MetaspaceObj
371 // that should be read-only by default. See symbol.hpp for an example. This function
372 // is used by the templates in metaspaceClosure.hpp
373 static bool is_read_only_by_default() { return false; }
374 };
375
376 // Base class for classes that constitute name spaces.
377
378 class Arena;
379
380 extern char* resource_allocate_bytes(size_t size,
381 AllocFailType alloc_failmode = AllocFailStrategy::EXIT_OOM);
382 extern char* resource_allocate_bytes(Thread* thread, size_t size,
383 AllocFailType alloc_failmode = AllocFailStrategy::EXIT_OOM);
384 extern char* resource_reallocate_bytes( char *old, size_t old_size, size_t new_size,
385 AllocFailType alloc_failmode = AllocFailStrategy::EXIT_OOM);
386 extern void resource_free_bytes( Thread* thread, char *old, size_t size );
387
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