Port async file operations to be using native ports instead or an isolate

runtime/bin/dartutils.h

 // Copyright (c) 2012, 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 BIN_DARTUTILS_H_
 #define BIN_DARTUTILS_H_
 
 #include "bin/builtin.h"
 #include "include/dart_api.h"
 #include "platform/globals.h"
@@ skipping 96 matching lines @@
 
 class CObject {
  public:
   explicit CObject(Dart_CObject *cobject) : cobject_(cobject) {}
   Dart_CObject::Type type() { return cobject_->type; }
 
   bool IsNull() { return type() == Dart_CObject::kNull; }
   bool IsBool() { return type() == Dart_CObject::kBool; }
   bool IsInt32() { return type() == Dart_CObject::kInt32; }
   bool IsInt64() { return type() == Dart_CObject::kInt64; }
+  bool IsInt32OrInt64() { return IsInt32() || IsInt64(); }
+  bool IsIntptr() { return IsInt32OrInt64(); }
   bool IsBigint() { return type() == Dart_CObject::kBigint; }
   bool IsDouble() { return type() == Dart_CObject::kDouble; }
   bool IsString() { return type() == Dart_CObject::kString; }
   bool IsArray() { return type() == Dart_CObject::kArray; }
   bool IsByteArray() { return type() == Dart_CObject::kByteArray; }
 
   bool IsTrue() {
     return type() == Dart_CObject::kBool && cobject_->value.as_bool;
   }
   bool IsFalse() {
     return type() == Dart_CObject::kBool && !cobject_->value.as_bool;
   }
 
   void* operator new(size_t size) {
     return Dart_ScopeAllocate(size);
   }
 
   static CObject* Null();
   static CObject* True();
   static CObject* False();
   static CObject* Bool(bool value);
   static Dart_CObject* New(Dart_CObject::Type type, int additional_bytes = 0);
   static Dart_CObject* NewInt32(int32_t value);
   static Dart_CObject* NewInt64(int64_t value);
+  static Dart_CObject* NewIntptr(intptr_t value);
   // kBigint,
   static Dart_CObject* NewDouble(double value);
   static Dart_CObject* NewString(int length);
   static Dart_CObject* NewString(const char* str);
   static Dart_CObject* NewArray(int length);
-  // kByteArray,
+  static Dart_CObject* NewByteArray(int length);
 
   Dart_CObject* AsApiCObject() { return cobject_; }
 
  protected:
   CObject() : cobject_(NULL) {}
   Dart_CObject* cobject_;
 
  private:
   static Dart_CObject api_null_;
   static Dart_CObject api_true_;
@@ skipping 33 matching lines @@
 
 
 class CObjectInt64 : public CObject {
  public:
   DECLARE_COBJECT_CONSTRUCTORS(Int64)
 
   int64_t Value() const { return cobject_->value.as_int64; }
 };
 
 
+class CObjectIntptr : public CObject {
+ public:
+  explicit CObjectIntptr(Dart_CObject *cobject) : CObject(cobject) {
+    ASSERT(type() == Dart_CObject::kInt32 || type() == Dart_CObject::kInt64);
+    cobject_ = cobject;
+  }
+  explicit CObjectIntptr(CObject* cobject) : CObject() {
+    ASSERT(cobject != NULL);
+    ASSERT(cobject->type() == Dart_CObject::kInt64 ||
+           cobject->type() == Dart_CObject::kInt32);
+    cobject_ = cobject->AsApiCObject();
+  }
+
+  intptr_t Value()  {
+    intptr_t result;
+    if (type() == Dart_CObject::kInt32) {
+      result = cobject_->value.as_int32;
+    } else {
+      result = cobject_->value.as_int64;
+    }
+    return result;
+  }
+};
+
+
 class CObjectBigint : public CObject {
  public:
   DECLARE_COBJECT_CONSTRUCTORS(Bigint)
 
   char* Value() const { return cobject_->value.as_bigint; }
 };
 
 
 class CObjectDouble : public CObject {
  public:
@@ skipping 18 matching lines @@
 
   int Length() const { return cobject_->value.as_array.length; }
   CObject* operator[](int index) const {
     return new CObject(cobject_->value.as_array.values[index]);
   }
   void SetAt(int index, CObject* value) {
     cobject_->value.as_array.values[index] = value->AsApiCObject();
   }
 };
 
+
+class CObjectByteArray : public CObject {
+ public:
+  DECLARE_COBJECT_CONSTRUCTORS(ByteArray)
+
+  int Length() const { return cobject_->value.as_byte_array.length; }
+  uint8_t* Buffer() const { return cobject_->value.as_byte_array.values; }
+};
+
 #endif  // BIN_DARTUTILS_H_