redis src 目录描述
sds.c/h: A C dynamic string library. 动态字符串库adlist.c/h: A generic doubly linked list. 双端链表dict.c/h: Hash tables. 哈希表ae.c/h: A simple event-driven programming library. 事件驱动库anet.c/h: is a library to use POSIX networking in a simpler way compared to the raw interface exposed by the kernel. POSIX TCP 网络库