glk_fileref_destroy ()

void
glk_fileref_destroy (frefid_t fref);

Destroys a fileref which you have created. This does not affect the disk file; it just reclaims the resources allocated by the glk_fileref_create... function.

It is legal to destroy a fileref after opening a file with it (while the file is still open.) The fileref is only used for the opening operation, not for accessing the file stream.

glk_fileref_iterate ()

frefid_t
glk_fileref_iterate (frefid_t fref,
                     glui32 *rockptr);

Iterates through all the existing filerefs. See Iterating Through Opaque Objects.

glk_fileref_get_rock ()

glui32
glk_fileref_get_rock (frefid_t fref);

Retrieves the file reference fref 's rock value. See Rocks.

glk_fileref_delete_file ()

void
glk_fileref_delete_file (frefid_t fref);

Deletes the file referred to by fref . It does not destroy fref itself.

You should only call this with a fileref that refers to an existing file.

glk_fileref_does_file_exist ()

glui32
glk_fileref_does_file_exist (frefid_t fref);

Checks whether the file referred to by fref exists.