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55 lines
1.5 KiB
C++
55 lines
1.5 KiB
C++
// Copyright 2017 The Dawn Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef COMMON_DYNAMICLIB_H_
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#define COMMON_DYNAMICLIB_H_
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#include "common/Assert.h"
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#include <string>
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#include <type_traits>
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class DynamicLib {
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public:
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DynamicLib() = default;
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~DynamicLib();
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DynamicLib(const DynamicLib&) = delete;
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DynamicLib& operator=(const DynamicLib&) = delete;
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DynamicLib(DynamicLib&& other);
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DynamicLib& operator=(DynamicLib&& other);
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bool Valid() const;
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bool Open(const std::string& filename, std::string* error = nullptr);
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void Close();
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void* GetProc(const std::string& procName, std::string* error = nullptr) const;
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template <typename T>
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bool GetProc(T** proc, const std::string& procName, std::string* error = nullptr) const {
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ASSERT(proc != nullptr);
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static_assert(std::is_function<T>::value, "");
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*proc = reinterpret_cast<T*>(GetProc(procName, error));
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return *proc != nullptr;
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}
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private:
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void* mHandle = nullptr;
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};
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#endif // COMMON_DYNAMICLIB_H_
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