| // Copyright 2019 The Dawn Authors |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #ifndef COMMON_SYSTEMUTILS_H_ |
| #define COMMON_SYSTEMUTILS_H_ |
| |
| #include "common/Platform.h" |
| |
| #include <string> |
| |
| const char* GetPathSeparator(); |
| // Returns a pair of the environment variable's value, and a boolean indicating whether the variable |
| // was present. |
| std::pair<std::string, bool> GetEnvironmentVar(const char* variableName); |
| bool SetEnvironmentVar(const char* variableName, const char* value); |
| std::string GetExecutableDirectory(); |
| |
| #ifdef DAWN_PLATFORM_MACOS |
| void GetMacOSVersion(int32_t* majorVersion, int32_t* minorVersion = nullptr); |
| bool IsMacOSVersionAtLeast(uint32_t majorVersion, uint32_t minorVersion = 0); |
| #endif |
| |
| class ScopedEnvironmentVar { |
| public: |
| ScopedEnvironmentVar() = default; |
| ScopedEnvironmentVar(const char* variableName, const char* value); |
| ~ScopedEnvironmentVar(); |
| |
| ScopedEnvironmentVar(const ScopedEnvironmentVar& rhs) = delete; |
| ScopedEnvironmentVar& operator=(const ScopedEnvironmentVar& rhs) = delete; |
| |
| bool Set(const char* variableName, const char* value); |
| |
| private: |
| std::string mName; |
| std::pair<std::string, bool> mOriginalValue; |
| bool mIsSet = false; |
| }; |
| |
| #endif // COMMON_SYSTEMUTILS_H_ |