Subj : Function pointers in shm shared memory ?
To   : comp.programming.threads
From : CM
Date : Fri Apr 29 2005 02:01 pm

Hello all,

In the process of seekeing the most
effective clientserver communication
for a personal project i stumble about
an idea.

under linux 2.6

Is it possible to share a memory segment
which would contain a block of function
that call inside the server process.

the client after obtaining the shared memory
segment would just have to call a function in
shared segment to actually call a function of
the server


to clarify:

Server:
Fct1()
  {
    // Some locking for multiple client possibility
  // Do the actual work
    // Unlocking
  }

shared segment:
BridgeFct1()
  {
  Fct1(); // Call the actual server function
  }


Client:

main()
    {
    fct = GetShared segment

    // Cast fct in function pointer
    BridgeFct(); // Call the function in shared segment wich then will call
working                         function in server
    }

Any thought about this mechanism ?

    Thanks

.