SharedLibrary.hpp

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#pragma once
 
#include <VoltMod/Core/Result.hpp>
#include <filesystem>
 
namespace VoltMod
{
 
/** A shared library the host opened, closed at scope end. Move-only: two owners would close it twice. */
class SharedLibrary
{
public:
    SharedLibrary() = default;
    ~SharedLibrary();
 
    SharedLibrary(SharedLibrary&& other) noexcept;
    SharedLibrary& operator=(SharedLibrary&& other) noexcept;
 
    SharedLibrary(const SharedLibrary&) = delete;
    SharedLibrary& operator=(const SharedLibrary&) = delete;
 
    /** Load @p path. The error carries the operating system's own message. */
    static Result<SharedLibrary> Open(const std::filesystem::path& path);
 
    /** The address @p name exports, or an error naming it. */
    Result<void*> Symbol(const char* name) const;
 
private:
    explicit SharedLibrary(void* handle) : _handle(handle) {}
    void Close();
 
    void* _handle = nullptr;
};
 
}  // namespace VoltMod