Mercurial > hg > graal-compiler
diff src/share/vm/classfile/symbolTable.hpp @ 18041:52b4284cb496
Merge with jdk8u20-b26
author | Gilles Duboscq <duboscq@ssw.jku.at> |
---|---|
date | Wed, 15 Oct 2014 16:02:50 +0200 |
parents | 4ca6dc0799b6 |
children | 7848fc12602b |
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--- a/src/share/vm/classfile/symbolTable.hpp Thu Oct 16 10:21:29 2014 +0200 +++ b/src/share/vm/classfile/symbolTable.hpp Wed Oct 15 16:02:50 2014 +0200 @@ -86,8 +86,8 @@ static bool _needs_rehashing; // For statistics - static int symbols_removed; - static int symbols_counted; + static int _symbols_removed; + static int _symbols_counted; Symbol* allocate_symbol(const u1* name, int len, bool c_heap, TRAPS); // Assumes no characters larger than 0x7F @@ -121,6 +121,11 @@ static Arena* arena() { return _arena; } // called for statistics static void initialize_symbols(int arena_alloc_size = 0); + + static volatile int _parallel_claimed_idx; + + // Release any dead symbols + static void buckets_unlink(int start_idx, int end_idx, int* processed, int* removed, size_t* memory_total); public: enum { symbol_alloc_batch_size = 8, @@ -177,7 +182,14 @@ unsigned int* hashValues, TRAPS); // Release any dead symbols - static void unlink(); + static void unlink() { + int processed = 0; + int removed = 0; + unlink(&processed, &removed); + } + static void unlink(int* processed, int* removed); + // Release any dead symbols, possibly parallel version + static void possibly_parallel_unlink(int* processed, int* removed); // iterate over symbols static void symbols_do(SymbolClosure *cl); @@ -235,6 +247,9 @@ // Rehash the symbol table if it gets out of balance static void rehash_table(); static bool needs_rehashing() { return _needs_rehashing; } + // Parallel chunked scanning + static void clear_parallel_claimed_index() { _parallel_claimed_idx = 0; } + static int parallel_claimed_index() { return _parallel_claimed_idx; } }; class StringTable : public Hashtable<oop, mtSymbol> { @@ -258,7 +273,10 @@ // Apply the give oop closure to the entries to the buckets // in the range [start_idx, end_idx). - static void buckets_do(OopClosure* f, int start_idx, int end_idx); + static void buckets_oops_do(OopClosure* f, int start_idx, int end_idx); + // Unlink or apply the give oop closure to the entries to the buckets + // in the range [start_idx, end_idx). + static void buckets_unlink_or_oops_do(BoolObjectClosure* is_alive, OopClosure* f, int start_idx, int end_idx, int* processed, int* removed); StringTable() : Hashtable<oop, mtSymbol>((int)StringTableSize, sizeof (HashtableEntry<oop, mtSymbol>)) {} @@ -280,15 +298,28 @@ // GC support // Delete pointers to otherwise-unreachable objects. - static void unlink_or_oops_do(BoolObjectClosure* cl, OopClosure* f); + static void unlink_or_oops_do(BoolObjectClosure* cl, OopClosure* f) { + int processed = 0; + int removed = 0; + unlink_or_oops_do(cl, f, &processed, &removed); + } static void unlink(BoolObjectClosure* cl) { - unlink_or_oops_do(cl, NULL); + int processed = 0; + int removed = 0; + unlink_or_oops_do(cl, NULL, &processed, &removed); } - + static void unlink_or_oops_do(BoolObjectClosure* cl, OopClosure* f, int* processed, int* removed); + static void unlink(BoolObjectClosure* cl, int* processed, int* removed) { + unlink_or_oops_do(cl, NULL, processed, removed); + } // Serially invoke "f->do_oop" on the locations of all oops in the table. static void oops_do(OopClosure* f); - // Possibly parallel version of the above + // Possibly parallel versions of the above + static void possibly_parallel_unlink_or_oops_do(BoolObjectClosure* cl, OopClosure* f, int* processed, int* removed); + static void possibly_parallel_unlink(BoolObjectClosure* cl, int* processed, int* removed) { + possibly_parallel_unlink_or_oops_do(cl, NULL, processed, removed); + } static void possibly_parallel_oops_do(OopClosure* f); // Hashing algorithm, used as the hash value used by the @@ -349,5 +380,6 @@ // Parallel chunked scanning static void clear_parallel_claimed_index() { _parallel_claimed_idx = 0; } + static int parallel_claimed_index() { return _parallel_claimed_idx; } }; #endif // SHARE_VM_CLASSFILE_SYMBOLTABLE_HPP