[WIP] TrapHandler 2014/11/27.

src/isolate.h

Index: src/isolate.h
diff --git a/src/isolate.h b/src/isolate.h
index 96e044596d29a67bc71aa4c746a44b0c2180f1ac..04cd3bfa3a7339cfa1a37503ed757155de01e4c5 100644
--- a/src/isolate.h
+++ b/src/isolate.h
@@ -5,6 +5,9 @@
 #ifndef V8_ISOLATE_H_
 #define V8_ISOLATE_H_
 
+#include <utility>
+#include <vector>
+
 #include "include/v8-debug.h"
 #include "src/allocation.h"
 #include "src/assert-scope.h"
@@ -52,6 +55,7 @@ class ExternalCallbackScope;
 class ExternalReferenceTable;
 class Factory;
 class FunctionInfoListener;
+struct GuardArea;
 class HandleScopeImplementer;
 class HeapProfiler;
 class HStatistics;
@@ -1116,6 +1120,10 @@ class Isolate {
   int GetNextUniqueSharedFunctionInfoId() { return next_unique_sfi_id_++; }
 #endif
 
+  void AddGuardArea(void const* address, size_t const length);
+  void RemoveGuardArea(void const* address, size_t const length);
+  bool IsInGuardArea(void const* address) const;
+
  private:
   explicit Isolate(bool enable_serializer);
 
@@ -1331,6 +1339,7 @@ class Isolate {
 
   v8::Isolate::UseCounterCallback use_counter_callback_;
   BasicBlockProfiler* basic_block_profiler_;
+  std::vector<std::pair<void const*, void const*>> guard_areas_;
 
   friend class ExecutionAccess;
   friend class HandleScopeImplementer;