ReadDir.hh

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#ifndef READDIR_HH
#define READDIR_HH
 
#include "direntp.hh"
#include "zstring_view.hh"
 
#include <memory>
#include <sys/types.h>
 
namespace openmsx {
 
class ReadDir
{
public:
        explicit ReadDir(zstring_view directory)
                : dir(opendir(directory.empty() ? "." : directory.c_str())) {}
 
        [[nodiscard]] struct dirent* getEntry() {
                if (!dir) return nullptr;
                return readdir(dir.get());
        }
 
        [[nodiscard]] bool isValid() const { return dir != nullptr; }
 
private:
        struct CloseDir {
                void operator()(DIR* d) const { if (d) closedir(d); }
        };
        using DIR_t = std::unique_ptr<DIR, CloseDir>;
        DIR_t dir;
};
 
} // namespace openmsx
 
#endif