add lichao's interface

shenxin

2021-08-21 458d0f0511acdf181671f13c2b6967d9d95b9316

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ipcrm -a
rm *.txt
./test_lostdata
sort -n c.txt  > c1.txt
sort -n p.txt  > p1.txt
diff -u p1.txt c1.txt