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runtime/bin/dartutils.cc

Index: runtime/bin/dartutils.cc
diff --git a/runtime/bin/dartutils.cc b/runtime/bin/dartutils.cc
index 62285162604ff2075613f668c6e4d3f2f8907801..3c16a0ef7fc69b3844bf91f8f70b122062d01674 100644
--- a/runtime/bin/dartutils.cc
+++ b/runtime/bin/dartutils.cc
@@ -284,6 +284,27 @@ Dart_Handle DartUtils::ReadStringFromFile(const char* filename) {
 }
 
 
+Dart_Handle DartUtils::MakeUint8Array(const uint8_t* buffer, intptr_t len) {
+  Dart_Handle array = Dart_NewTypedData(Dart_TypedData_kUint8, len);
+  RETURN_IF_ERROR(array);
+  {
+    Dart_TypedData_Type td_type;
+    void* td_data;
+    intptr_t td_len;
+    Dart_Handle result =
+        Dart_TypedDataAcquireData(array, &td_type, &td_data, &td_len);
+    RETURN_IF_ERROR(result);
+    ASSERT(td_type == Dart_TypedData_kUint8);
+    ASSERT(td_len == len);
+    ASSERT(td_data != NULL);
+    memmove(td_data, buffer, td_len);
+    result = Dart_TypedDataReleaseData(array);
+    RETURN_IF_ERROR(result);
+  }
+  return array;
+}
+
+
 Dart_Handle DartUtils::SetWorkingDirectory(Dart_Handle builtin_lib) {
   Dart_Handle directory = NewString(original_working_directory);
   return SingleArgDart_Invoke(builtin_lib, "_setWorkingDirectory", directory);