Re: Re: Looking for Documentation: Plugin Architecture

Mike,

I did something similar to what Scott's described, except for the following:

1. There is a 'global' array where each array element consists of the procedure 
name and a procedure pointer to that procedure. The LoadProcs() procedure (the 
equivalent of Scott's init_plugin()) in each service program (there are 
currently about 6 service programs in all) is passed the pointer to the array, 
and it loads its procedures and pointers into the array, e.g.:

/free
 
  SRVPGM1_LoadProcs(ProcArrPtr);
  SRVPGM2_LoadProcs(ProcArrPtr);
  SRVPGM3_LoadProcs(ProcArrPtr);
  SRVPGM4_LoadProcs(ProcArrPtr);
  SRVPGM5_LoadProcs(ProcArrPtr);
  SRVPGM5_LoadProcs(ProcArrPtr);
/end-free

2. All the called procedures (except the LoadProcs() procedures) are defined as 
having 4 parameters - 3 pointers and an error structure.

The called procedures are all called by name