66 	struct mem_block *memBase;  in add_node()  local
69 	memBase = list->listMemBase;  in add_node()
70 	if (memBase != NULL)  in add_node()
71 		index = memBase->index;  in add_node()
73 	if (memBase == NULL || index >= NODE_CHUNK) {  in add_node()
75 		memBase = mmalloc(sizeof(struct mem_block) + NODE_CHUNK * size);  in add_node()
76 		if (memBase == NULL) {  in add_node()
80 		memBase->next = list->listMemBase;  in add_node()
84 	b = (struct b_node *)&memBase->nodes[size * index];  in add_node()
87 	memBase->index = index;  in add_node()
88 	list->listMemBase = memBase;  in add_node()