draw_chordal_env_t *env = data;
struct list_head *head = get_block_border_head(env->chordal_env, block);
const draw_chordal_opts_t *opts = env->opts;
draw_chordal_env_t *env = data;
struct list_head *head = get_block_border_head(env->chordal_env, block);
const draw_chordal_opts_t *opts = env->opts;