| // Copyright 2014 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_COMMON_ENVIRONMENT_DATA_H_ |
| #define MOJO_COMMON_ENVIRONMENT_DATA_H_ |
| |
| #include <map> |
| |
| #include "base/memory/scoped_ptr.h" |
| #include "base/synchronization/lock.h" |
| #include "mojo/common/mojo_common_export.h" |
| |
| namespace mojo { |
| namespace common { |
| |
| // EnvironmentData is used to store arbitrary key/value pairs in the |
| // environment. The key/value pairs are owned by the Environment and deleted |
| // when it is deleted. |
| class MOJO_COMMON_EXPORT EnvironmentData { |
| public: |
| class MOJO_COMMON_EXPORT Data { |
| public: |
| Data() {} |
| virtual ~Data() {} |
| }; |
| |
| EnvironmentData(); |
| ~EnvironmentData(); |
| |
| static EnvironmentData* GetInstance(); |
| |
| void SetData(const void* key, scoped_ptr<Data> data); |
| |
| Data* GetData(const void* key); |
| |
| private: |
| typedef std::map<const void*, Data*> DataMap; |
| |
| static EnvironmentData* instance_; |
| |
| base::Lock data_lock_; |
| |
| DataMap data_map_; |
| |
| DISALLOW_COPY_AND_ASSIGN(EnvironmentData); |
| }; |
| |
| } // namespace common |
| } // namespace mojo |
| |
| #endif // MOJO_COMMON_ENVIRONMENT_DATA_H_ |