Create a new class v8::internal::Isolate in isolate.h/isolate.cc....

src/isolate.h

+// Copyright 2010 the V8 project authors. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+//       notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+//       copyright notice, this list of conditions and the following
+//       disclaimer in the documentation and/or other materials provided
+//       with the distribution.
+//     * Neither the name of Google Inc. nor the names of its
+//       contributors may be used to endorse or promote products derived
+//       from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef V8_ISOLATE_H_
+#define V8_ISOLATE_H_
+
+namespace v8 {
+namespace internal {
+
+class Deserializer;
+
+class Isolate {
+ public:
+  // Returns the single global isolate.
+  static inline Isolate* Current() {
+    ASSERT(global_isolate != NULL);
+    return global_isolate;
+  }
+
+  // Creates a new isolate (perhaps using a deserializer). Returns null
+  // on failure.
+  static Isolate* Create(Deserializer* des);
+  
+  // Initialize process-wide state.
+  static void InitOnce();
+  
+  ~Isolate();
+  
+ private:
+  Isolate();
+  
+  static Isolate* global_isolate;
+  
+  bool Init(Deserializer* des);
+
+  DISALLOW_COPY_AND_ASSIGN(Isolate);
+};
+
+
+} }  // namespace v8::internal
+
+#endif  // V8_ISOLATE_H_