| // Copyright (c) 2010 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 BASE_ENV_VAR_H_ |
| #define BASE_ENV_VAR_H_ |
| |
| #include <string> |
| |
| #include "base/basictypes.h" |
| |
| namespace base { |
| |
| // These are used to derive mocks for unittests. |
| class EnvVarGetter { |
| public: |
| virtual ~EnvVarGetter() {} |
| // Gets an environment variable's value and stores it in |result|. |
| // Returns false if the key is unset. |
| virtual bool GetEnv(const char* variable_name, std::string* result) = 0; |
| |
| // Syntactic sugar for GetEnv(variable_name, NULL); |
| virtual bool HasEnv(const char* variable_name) { |
| return GetEnv(variable_name, NULL); |
| } |
| |
| // Create an instance of EnvVarGetter |
| static EnvVarGetter* Create(); |
| }; |
| |
| } // namespace base |
| |
| #endif // BASE_ENV_VAR_H_ |