Question about shared memory on UNIX

[jian at kuhub.cc.ukans.edu]

Hi folks:
   I posted a help wanted message about shared memory on UNIX. I very much 
appreciate all responses and helps. After reading some usefull books, I got
some idea about shared memory on UNIX and would like to place a comment about
it. As what I understand, shared memory on Unix means two or more processes 
share a common physical memory segment. That implies I can't dynamically 
create memory segments to be shared by other processes. Am I right? If I am 
wrong, please indicate how can I dynamically create a link list that can be 
shared by other processes. I would appreciate any helps.

Jian Q. Li
jian at kuhub.cc.ukan.edu