| // Copyright 2017 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 SRC_DAWN_COMMON_DYNAMICLIB_H_ |
| #define SRC_DAWN_COMMON_DYNAMICLIB_H_ |
| |
| #include <string> |
| #include <type_traits> |
| |
| #include "dawn/common/Assert.h" |
| |
| class DynamicLib { |
| public: |
| DynamicLib() = default; |
| ~DynamicLib(); |
| |
| DynamicLib(const DynamicLib&) = delete; |
| DynamicLib& operator=(const DynamicLib&) = delete; |
| |
| DynamicLib(DynamicLib&& other); |
| DynamicLib& operator=(DynamicLib&& other); |
| |
| bool Valid() const; |
| |
| bool Open(const std::string& filename, std::string* error = nullptr); |
| void Close(); |
| |
| void* GetProc(const std::string& procName, std::string* error = nullptr) const; |
| |
| template <typename T> |
| bool GetProc(T** proc, const std::string& procName, std::string* error = nullptr) const { |
| ASSERT(proc != nullptr); |
| static_assert(std::is_function<T>::value); |
| |
| *proc = reinterpret_cast<T*>(GetProc(procName, error)); |
| return *proc != nullptr; |
| } |
| |
| private: |
| void* mHandle = nullptr; |
| }; |
| |
| #endif // SRC_DAWN_COMMON_DYNAMICLIB_H_ |