hello all,

1. I designed a new routing protocol and had integrated it inside AquaSim. Documents about what changes to do in Tcl can be found easily.
And I also designed a new UWSink. So what changes do I need to do in Tcl files? I cannot find any documents about this.

2. I just compiled my new UWSink merely. Then when I run my TCL script, field node in class is a null pointer, which causes segment fault. How did this happen? 

My English is not so good. Thank anyone who coud help me :)