#include "file.h"

struct fs_inode *fs_file_get_inode(const struct fs_file *f)
{
	return f->f_inode;
}

size_t fs_file_get_cursor(const struct fs_file *f)
{
	return f->f_seek;
}

enum fs_status fs_file_read(
	struct fs_file *f,
	struct xpc_buffer *buf,
	size_t count)
{
	if (!f->f_ops || !f->f_ops->f_read) {
		return FS_ERR_NOT_IMPLEMENTED;
	}

	off_t seek = f->f_seek;
	enum fs_status status = f->f_ops->f_read(f, buf, count, &seek);
	f->f_seek = seek;
	return status;
}

enum fs_status fs_file_write(
	struct fs_file *f,
	struct xpc_buffer *buf,
	size_t count)
{
	if (!f->f_ops || !f->f_ops->f_write) {
		return FS_ERR_NOT_IMPLEMENTED;
	}

	off_t seek = f->f_seek;
	enum fs_status status = f->f_ops->f_write(f, buf, count, &seek);
	f->f_seek = seek;
	return status;
}