add api; fix send, socknode mem leak.

lichao

2021-04-15 c64c54d8e75b9354dc49a7b6b2d326e7dd59eb37

 .gitignore

@@ -6,3 +6,6 @@
utest/utest
*.bak
gmon.out
box/bhshmqbox
box/bhshmq_center
box/help