VM: Precompiled rodata snapshot.

runtime/vm/dart.h

 // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef VM_DART_H_
 #define VM_DART_H_
 
 #include "include/dart_api.h"
 #include "vm/allocation.h"
 
 namespace dart {
 
 // Forward declarations.
 class DebugInfo;
 class Isolate;
 class LocalHandle;
 class RawError;
 class ReadOnlyHandles;
 class ThreadPool;
 
 class Dart : public AllStatic {
  public:
   static const char* InitOnce(
       const uint8_t* vm_isolate_snapshot,
       const uint8_t* instructions_snapshot,
+      const uint8_t* data_snapshot,
       Dart_IsolateCreateCallback create,
       Dart_IsolateShutdownCallback shutdown,
       Dart_FileOpenCallback file_open,
       Dart_FileReadCallback file_read,
       Dart_FileWriteCallback file_write,
       Dart_FileCloseCallback file_close,
       Dart_EntropySource entropy_source,
       Dart_GetVMServiceAssetsArchive get_service_assets);
   static const char* Cleanup();
 
@@ skipping 21 matching lines @@
   static const uint8_t* instructions_snapshot_buffer() {
     return instructions_snapshot_buffer_;
   }
   static void set_instructions_snapshot_buffer(const uint8_t* buffer) {
     instructions_snapshot_buffer_ = buffer;
   }
   static bool IsRunningPrecompiledCode() {
     return instructions_snapshot_buffer_ != NULL;
   }
 
+  static const uint8_t* data_snapshot_buffer() {
+    return data_snapshot_buffer_;
+  }
+  static void set_data_snapshot_buffer(const uint8_t* buffer) {
+    data_snapshot_buffer_ = buffer;
+  }
+
  private:
   static void WaitForIsolateShutdown();
 
   static Isolate* vm_isolate_;
   static ThreadPool* thread_pool_;
   static DebugInfo* pprof_symbol_generator_;
   static ReadOnlyHandles* predefined_handles_;
   static const uint8_t* instructions_snapshot_buffer_;
+  static const uint8_t* data_snapshot_buffer_;
 };
 
 }  // namespace dart
 
 #endif  // VM_DART_H_