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// Copyright 2017 The Dawn & Tint Authors
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this
// list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#ifndef SRC_DAWN_COMMON_DYNAMICLIB_H_
#define SRC_DAWN_COMMON_DYNAMICLIB_H_
#include <string>
#include <type_traits>
#include "dawn/common/Assert.h"
namespace dawn {
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 {
DAWN_ASSERT(proc != nullptr);
static_assert(std::is_function<T>::value);
*proc = reinterpret_cast<T*>(GetProc(procName, error));
return *proc != nullptr;
}
private:
void* mHandle = nullptr;
};
} // namespace dawn
#endif // SRC_DAWN_COMMON_DYNAMICLIB_H_