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// Copyright 2015 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef V8_PROFILER_STRINGS_STORAGE_H_
#define V8_PROFILER_STRINGS_STORAGE_H_
#include "src/allocation.h"
#include "src/hashmap.h"
namespace v8 {
namespace internal {
// Provides a storage of strings allocated in C++ heap, to hold them
// forever, even if they disappear from JS heap or external storage.
class StringsStorage {
public:
explicit StringsStorage(Heap* heap);
~StringsStorage();
const char* GetCopy(const char* src);
const char* GetFormatted(const char* format, ...);
const char* GetVFormatted(const char* format, va_list args);
const char* GetName(Name* name);
const char* GetName(int index);
const char* GetFunctionName(Name* name);
const char* GetFunctionName(const char* name);
size_t GetUsedMemorySize() const;
private:
static const int kMaxNameSize = 1024;
static bool StringsMatch(void* key1, void* key2);
const char* AddOrDisposeString(char* str, int len);
HashMap::Entry* GetEntry(const char* str, int len);
uint32_t hash_seed_;
HashMap names_;
DISALLOW_COPY_AND_ASSIGN(StringsStorage);
};
} // namespace internal
} // namespace v8
#endif // V8_PROFILER_STRINGS_STORAGE_H_
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