gplib/include/shared_fd.hpp

#pragma once
#include <fcntl.h>
#include <unistd.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <string>

namespace gp{
	using open_opt_flags = int;

	enum class open_options : open_opt_flags {
		append = O_APPEND,
		create = O_CREAT,
		async = O_ASYNC,
		direct = O_DIRECT,
		data_sync = O_DSYNC,
		file_sync = O_SYNC,
		exclusive = O_EXCL,
		no_access_time = O_NOATIME,
		no_follow = O_NOFOLLOW,
#ifdef O_TEMP
		temporary = O_TEMP,
#endif
#ifdef O_TRUC
		truncate = O_TRUC,
#endif
	};

	using open_opt_mode = int;

	enum class open_modes : open_opt_mode {
		user_read = S_IRUSR,
		user_write = S_IWUSR,
		user_exec = S_IXUSR,
		group_read = S_IRGRP,
		group_write = S_IWGRP,
		group_exec = S_IXGRP,
		other_read = S_IROTH,
		other_write = S_IWOTH,
		other_exec = S_IXOTH,
		set_uid = S_ISUID,
		set_gid = S_ISGID,
		sticky_bit = S_ISVTX,
	};

	class shared_fd {
		const int fd;
		shared_fd(int fd_v)
		: fd(fd_v) {}

	public:
		static shared_fd open(const std::string& filename, const open_opt_flags& flags) {
			
		}
	};
}