Attach snapshot data blob to the isolate.

src/isolate.h

 // Copyright 2012 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_ISOLATE_H_
 #define V8_ISOLATE_H_
 
 #include <queue>
 #include "include/v8-debug.h"
 #include "src/allocation.h"
@@ skipping 363 matching lines @@
   V(int, pending_microtask_count, 0)                                           \
   V(bool, autorun_microtasks, true)                                            \
   V(HStatistics*, hstatistics, NULL)                                           \
   V(CompilationStatistics*, turbo_statistics, NULL)                            \
   V(HTracer*, htracer, NULL)                                                   \
   V(CodeTracer*, code_tracer, NULL)                                            \
   V(bool, fp_stubs_generated, false)                                           \
   V(int, max_available_threads, 0)                                             \
   V(uint32_t, per_isolate_assert_data, 0xFFFFFFFFu)                            \
   V(PromiseRejectCallback, promise_reject_callback, NULL)                      \
+  V(const v8::StartupData*, snapshot_blob, NULL)                               \
   ISOLATE_INIT_SIMULATOR_LIST(V)
 
 #define THREAD_LOCAL_TOP_ACCESSOR(type, name)                        \
   inline void set_##name(type v) { thread_local_top_.name##_ = v; }  \
   inline type name() const { return thread_local_top_.name##_; }
 
 
 class Isolate {
   // These forward declarations are required to make the friend declarations in
   // PerIsolateThreadData work on some older versions of gcc.
@@ skipping 592 matching lines @@
   void SetData(uint32_t slot, void* data) {
     DCHECK(slot < Internals::kNumIsolateDataSlots);
     embedder_data_[slot] = data;
   }
   void* GetData(uint32_t slot) {
     DCHECK(slot < Internals::kNumIsolateDataSlots);
     return embedder_data_[slot];
   }
 
   bool serializer_enabled() const { return serializer_enabled_; }
+  bool snapshot_available() const { return snapshot_blob_ != NULL; }
 
   bool IsDead() { return has_fatal_error_; }
   void SignalFatalError() { has_fatal_error_ = true; }
 
   bool use_crankshaft() const;
 
   bool initialized_from_snapshot() { return initialized_from_snapshot_; }
 
   double time_millis_since_init() {
     return base::OS::TimeCurrentMillis() - time_millis_at_init_;
@@ skipping 115 matching lines @@
 
   uintptr_t* store_buffer_hash_set_2_address() {
     return store_buffer_hash_set_2_address_;
   }
 
   void AddDetachedContext(Handle<Context> context);
   void CheckDetachedContextsAfterGC();
 
   List<Object*>* partial_snapshot_cache() { return &partial_snapshot_cache_; }
 
- private:
+ protected:
   explicit Isolate(bool enable_serializer);
 
+ private:
   friend struct GlobalState;
   friend struct InitializeGlobalState;
 
   // These fields are accessed through the API, offsets must be kept in sync
   // with v8::internal::Internals (in include/v8.h) constants. This is also
   // verified in Isolate::Init() using runtime checks.
   void* embedder_data_[Internals::kNumIsolateDataSlots];
   Heap heap_;
 
   // The per-process lock should be acquired before the ThreadDataTable is
@@ skipping 213 matching lines @@
   friend class SweeperThread;
   friend class ThreadManager;
   friend class Simulator;
   friend class StackGuard;
   friend class ThreadId;
   friend class TestMemoryAllocatorScope;
   friend class TestCodeRangeScope;
   friend class v8::Isolate;
   friend class v8::Locker;
   friend class v8::Unlocker;
+  friend v8::StartupData v8::V8::CreateSnapshotDataBlob(const char*);
 
   DISALLOW_COPY_AND_ASSIGN(Isolate);
 };
 
 
 #undef FIELD_ACCESSOR
 #undef THREAD_LOCAL_TOP_ACCESSOR
 
 
 class PromiseOnStack {
@@ skipping 194 matching lines @@
   }
 
   EmbeddedVector<char, 128> filename_;
   FILE* file_;
   int scope_depth_;
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_ISOLATE_H_