mojo: MessageBuilder

mojo/public/libs/message/message.h

Index: mojo/public/libs/message/message.h
diff --git a/mojo/public/libs/message/message.h b/mojo/public/libs/message/message.h
new file mode 100644
index 0000000000000000000000000000000000000000..94d52e63fa2532f8ba07326e6578a834d5edd732
--- /dev/null
+++ b/mojo/public/libs/message/message.h
@@ -0,0 +1,57 @@
+// Copyright 2013 The Chromium 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 MOJO_PUBLIC_LIBS_MESSAGE_MESSAGE_H_
+#define MOJO_PUBLIC_LIBS_MESSAGE_MESSAGE_H_
+
+#include <stdint.h>
+
+#include <vector>
+
+#include "mojo/public/system/core.h"
+
+namespace mojo {
+
+enum MessageFieldClass {
+  kMessageFieldClass_U32   = 0x1,
+  kMessageFieldClass_U64   = 0x2,
+  kMessageFieldClass_Array = 0x3,
+};
+
+enum MessageFieldType {
+  kMessageFieldType_Bool    = 0x1 << 2 | kMessageFieldClass_U32,
+  kMessageFieldType_Int8    = 0x2 << 2 | kMessageFieldClass_U32,
+  kMessageFieldType_Int16   = 0x3 << 2 | kMessageFieldClass_U32,
+  kMessageFieldType_Int32   = 0x4 << 2 | kMessageFieldClass_U32,
+  kMessageFieldType_Int64   = 0x5 << 2 | kMessageFieldClass_U64,
+  kMessageFieldType_Uint8   = 0x6 << 2 | kMessageFieldClass_U32,
+  kMessageFieldType_Uint16  = 0x7 << 2 | kMessageFieldClass_U32,
+  kMessageFieldType_Uint32  = 0x8 << 2 | kMessageFieldClass_U32,
+  kMessageFieldType_Uint64  = 0x9 << 2 | kMessageFieldClass_U64,
+  kMessageFieldType_Float   = 0xA << 2 | kMessageFieldClass_U32,
+  kMessageFieldType_Double  = 0xB << 2 | kMessageFieldClass_U64,
+  kMessageFieldType_String  = 0xC << 2 | kMessageFieldClass_Array,
+  kMessageFieldType_Bytes   = 0xD << 2 | kMessageFieldClass_Array,
+  kMessageFieldType_Handle  = 0xE << 2 | kMessageFieldClass_U32,
+  kMessageFieldType_Message = 0xF << 2 | kMessageFieldClass_Array,
+};
+
+class Message {
+ public:
+  Message();
+  ~Message();
+
+  const std::vector<uint8_t>& data() const { return data_; }
+  const std::vector<Handle>& handles() const { return handles_; }
+
+ private:
+  friend class MessageBuilder;
+
+  std::vector<uint8_t> data_;
+  std::vector<Handle> handles_;
+};
+
+}  // namespace mojo
+
+#endif  // MOJO_PUBLIC_LIBS_MESSAGE_MESSAGE_H_