diff options
Diffstat (limited to 'src/intern_table.h')
| -rw-r--r-- | src/intern_table.h | 98 |
1 files changed, 0 insertions, 98 deletions
diff --git a/src/intern_table.h b/src/intern_table.h deleted file mode 100644 index 1ff4f6d3c6..0000000000 --- a/src/intern_table.h +++ /dev/null @@ -1,98 +0,0 @@ -/* - * Copyright (C) 2011 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#ifndef ART_SRC_INTERN_TABLE_H_ -#define ART_SRC_INTERN_TABLE_H_ - -#include "base/mutex.h" -#include "root_visitor.h" - -#include <map> - -namespace art { -namespace mirror { -class String; -} // namespace mirror - -/** - * Used to intern strings. - * - * There are actually two tables: one that holds strong references to its strings, and one that - * holds weak references. The former is used for string literals, for which there is an effective - * reference from the constant pool. The latter is used for strings interned at runtime via - * String.intern. Some code (XML parsers being a prime example) relies on being able to intern - * arbitrarily many strings for the duration of a parse without permanently increasing the memory - * footprint. - */ -class InternTable { - public: - InternTable(); - - // Interns a potentially new string in the 'strong' table. (See above.) - mirror::String* InternStrong(int32_t utf16_length, const char* utf8_data) - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - // Interns a potentially new string in the 'strong' table. (See above.) - mirror::String* InternStrong(const char* utf8_data) - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - // Interns a potentially new string in the 'strong' table. (See above.) - mirror::String* InternStrong(mirror::String* s) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - // Interns a potentially new string in the 'weak' table. (See above.) - mirror::String* InternWeak(mirror::String* s) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - // Register a String trusting that it is safe to intern. - // Used when reinitializing InternTable from an image. - void RegisterStrong(mirror::String* s) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - void SweepInternTableWeaks(IsMarkedTester is_marked, void* arg) - SHARED_LOCKS_REQUIRED(Locks::heap_bitmap_lock_); - - bool ContainsWeak(mirror::String* s) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - size_t Size() const; - - void VisitRoots(RootVisitor* visitor, void* arg, bool clean_dirty); - - void DumpForSigQuit(std::ostream& os) const; - - bool IsDirty() const { return is_dirty_; } - void Dirty() { - is_dirty_ = true; - } - - private: - typedef std::multimap<int32_t, mirror::String*> Table; - - mirror::String* Insert(mirror::String* s, bool is_strong) - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - mirror::String* Lookup(Table& table, mirror::String* s, uint32_t hash_code) - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - mirror::String* Insert(Table& table, mirror::String* s, uint32_t hash_code); - void Remove(Table& table, const mirror::String* s, uint32_t hash_code); - - mutable Mutex intern_table_lock_; - bool is_dirty_; - Table image_strong_interns_ GUARDED_BY(intern_table_lock_); - Table strong_interns_ GUARDED_BY(intern_table_lock_); - Table weak_interns_ GUARDED_BY(intern_table_lock_); -}; - -} // namespace art - -#endif // ART_SRC_CLASS_LINKER_H_ |