A slave statement may be used in the guard of a select state

[Folknology]

This snippet

Code: Select all

transaction inArray ( chanend c , int data [] , int size ) {
  for ( int i =0; i < size ; i ++)
    c : > data [ i ];
}

Along with:
A slave statement may be used in the guard of a select statement, as in:

Code: Select all

       select {
          case slave { inArray ( c1 , packet , P_SIZE ); } :
            process ( packet );
            break ;
          case slave { inArray ( c2 , packet , P_SIZE ); } :
            process ( packet );
            break ;
       }

Is presented in the XC manual which I was revisiting to try and understand transactions and master slave concurrency. Unfortunately a 'main()' example is not provided for this version of the slave select. As such I am having trouble getting my head around how this works and in which kind of situation it might prove useful. I would appreciate someone with a better understanding of this filling in the blanks for me please. It might also help others confused by this part of the manual.

regards
Al

[lilltroll]

I have read that part many times in the manual as well - and I still haven't found "the light".

[Folknology]

One thought occurred to me is this some form of transactional broadcast, that illusive 1 to many albeit in a specialised form?

[Folknology]

Doug helped answer this in response to my queries around section 3.4 of the programming XC manual