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// 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 COMMON_DYNAMICLIB_H_
#define COMMON_DYNAMICLIB_H_
#include "common/Assert.h"
#include <string>
#include <type_traits>
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 // COMMON_DYNAMICLIB_H_