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Unified Diff: src/strings-storage.h

Issue 945873002: CpuProfiler: move StringsStorage class to separate source and header files. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 5 years, 10 months ago
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Index: src/strings-storage.h
diff --git a/src/strings-storage.h b/src/strings-storage.h
new file mode 100644
index 0000000000000000000000000000000000000000..8fd9da7d3c9a3815325da993de9ae0b3e5fbc9a2
--- /dev/null
+++ b/src/strings-storage.h
@@ -0,0 +1,47 @@
+// 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_STRINGS_STORAGE_H_
+#define V8_STRINGS_STORAGE_H_
+
+#include "src/allocation.h"
+#include "src/hashmap.h"
+
+namespace v8 {
+namespace internal {
+
+struct OffsetRange;
+
+// 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 v8::internal
+
+#endif // V8_STRINGS_STORAGE_H_
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