#ifndef _ERRNO_H
#define _ERRNO_H

#include <kernel.h>

#define ERRNO_MAX 4095

#define IS_ERR(_ptr) ((uintptr_t)(_ptr) >= (uintptr_t)(-ERRNO_MAX))

#define ERR_PTR(_err) ((void*)(_err))
#define PTR_ERR(_ptr) ((int)(intptr_t)(_ptr))

// TODO: Add correct errno.h numbers
enum {
	SUCCESS = 0,
	ENOMEM,	   // Cannot allocate memory
	EPERM,	   // Operation not permitted
	ENOENT,	   // No entry (no such file or directory)
	EIO,	   // Input/Output error
	ENXIO,	   // No such device or address
	EAGAIN,	   // Resource temporarly busy
	EACCES,	   // Permission denied
	EFAULT,	   // Bad address
	ENODEV,	   // No such device
	EINVAL,	   // Invalid argument
	EDOM,	   // Numerical argument out of domain
	ERANGE,	   // Numerical result out of range
	ENOSYS,	   // Function not implemented
	ENOTSUP,   // Not supported
	EILLSEQ,   // Illegal byte sequence
	EOVERFLOW, //
	EALIGN,	   // Not aligned
	EEXIST,	   // already exists
};

#endif