IPC fuzzer: create message_lib library.

tools/ipc_fuzzer/message_lib/message_names.h

+// 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 TOOLS_IPC_FUZZER_MESSAGE_LIB_MESSAGE_NAMES_H_
+#define TOOLS_IPC_FUZZER_MESSAGE_LIB_MESSAGE_NAMES_H_
+
+#include <map>
+#include <string>
+#include "base/basictypes.h"
+#include "base/logging.h"
+
+namespace ipc_fuzzer {
+
+class MessageNames {
+ public:
+  MessageNames();
+  ~MessageNames();
+  static MessageNames* GetInstance();
+
+  void Add(uint32 type, const std::string& name) {
+    name_map_[type] = name;
+    type_map_[name] = type;
+  }
+
+  bool TypeExists(uint32 type) {
+    return name_map_.find(type) != name_map_.end();
+  }
+
+  bool NameExists(const std::string& name) {
+    return type_map_.find(name) != type_map_.end();
+  }
+
+  const std::string& TypeToName(uint32 type) {
+    TypeToNameMap::iterator it = name_map_.find(type);
+    CHECK(it != name_map_.end());
+    return it->second;
+  }
+
+  uint32 NameToType(const std::string& name) {
+    NameToTypeMap::iterator it = type_map_.find(name);
+    CHECK(it != type_map_.end());
+    return it->second;
+  }
+
+ private:
+  typedef std::map<uint32, std::string> TypeToNameMap;
+  typedef std::map<std::string, uint32> NameToTypeMap;
+  TypeToNameMap name_map_;
+  NameToTypeMap type_map_;
+
+  static MessageNames* all_names_;
+
+  DISALLOW_COPY_AND_ASSIGN(MessageNames);
+};
+
+}  // namespace ipc_fuzzer
+
+#endif  // TOOLS_IPC_FUZZER_MESSAGE_LIB_MESSAGE_NAMES_H_