MacBook pro 合盖无法正常休眠的问题

pmset -g 如下

System-wide power settings:

Currently in use:

 standbydelaylow   10800

 standby       1

 womp         0

 halfdim       1

 hibernatefile    /var/vm/sleepimage

 proximitywake    1

 powernap       1

 gpuswitch      2

 networkoversleep   0

 disksleep      10

 standbydelayhigh   86400

 sleep        15 (sleep prevented by sharingd)

 hibernatemode    3

 ttyskeepawake    1

 displaysleep     15

 tcpkeepalive     1

 highstandbythreshold 50

 acwake        0

 lidwake       1

看到是被sharingd进程禁止了睡眠 请问这个进程是什么？如何解决？