11.1.2.1 struct x1f4_frame_type

typedef struct x1f4_frame_type {
    int (*free)(void *, void *), (*link)(void *, void **, unsigned),
	(*mode)(void *, void **, unsigned),
	(*pick)(void *, void ***, int (*)(void *), unsigned, void **),
	(*slip)(void *, void *, void *, int (*)(void *));
    void *data;
} x1f4_frame_type;

The struct x1f4_frame_type record describes a temporaries allocator context. It is a regular libaime temporaries allocator construct.

See Temporaries Allocator Construct.