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1 // Copyright 2015 the V8 project authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef V8_STRINGS_STORAGE_H_ | |
6 #define V8_STRINGS_STORAGE_H_ | |
7 | |
8 #include "src/allocation.h" | |
9 #include "src/hashmap.h" | |
10 | |
11 namespace v8 { | |
12 namespace internal { | |
13 | |
14 // Provides a storage of strings allocated in C++ heap, to hold them | |
15 // forever, even if they disappear from JS heap or external storage. | |
16 class StringsStorage { | |
17 public: | |
18 explicit StringsStorage(Heap* heap); | |
19 ~StringsStorage(); | |
20 | |
21 const char* GetCopy(const char* src); | |
22 const char* GetFormatted(const char* format, ...); | |
23 const char* GetVFormatted(const char* format, va_list args); | |
24 const char* GetName(Name* name); | |
25 const char* GetName(int index); | |
26 const char* GetFunctionName(Name* name); | |
27 const char* GetFunctionName(const char* name); | |
28 size_t GetUsedMemorySize() const; | |
29 | |
30 private: | |
31 static const int kMaxNameSize = 1024; | |
32 | |
33 static bool StringsMatch(void* key1, void* key2); | |
34 const char* AddOrDisposeString(char* str, int len); | |
35 HashMap::Entry* GetEntry(const char* str, int len); | |
36 | |
37 uint32_t hash_seed_; | |
38 HashMap names_; | |
39 | |
40 DISALLOW_COPY_AND_ASSIGN(StringsStorage); | |
41 }; | |
42 } // namespace internal | |
43 } // namespace v8 | |
44 | |
45 #endif // V8_STRINGS_STORAGE_H_ | |
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