CH_INITIALIZER
struct test head = CH_INITIALIZER(head);
static struct adjout_attr_tree attrtable = CH_INITIALIZER(&attrtable);
static struct attr_tree attrtable = CH_INITIALIZER(&attrtable);
static struct comm_tree commtable = CH_INITIALIZER(&commtable);
static struct rde_filtertable filter = CH_INITIALIZER(&filter);
static struct rde_filterset filterset = CH_INITIALIZER(&filterset);
static struct path_tree pathtable = CH_INITIALIZER(&pathtable);