• 通过阅读2012年的uv book 入门。

有中文版

Handles and Requests

libuv works by the user expressing interest in particular events. This is usually done by creating a handle to an I/O device, timer or process. Handles are opaque structs named as uv_TYPE_t where type signifies what the handle is used for.

libuv watchers ：以下类型都可以被libuv监控到event的发生

/* Handle types. */
typedef struct uv_loop_s uv_loop_t;
typedef