Event
Worker

id
init
push
done
last
worker

0
1
1
0
321

1
0
0
1
322

2
1
1
0
1101

3
0
0
1
1102

3101
1
0
0
6
0


id
busy
lock
event

0
1
1
3101
1
0
0

2
0
0

3
0
5

4
0
0

selected: 1, valid: 1, accept: 0, readwrite: 1