Re: 4gl/C interface

SOHO!dpsanjay@WALLST.raileurope.com (Sanjay Kumar) wrote: > >To call 4gl functions from C, is it required to >1. call the function fgl_end() after every function fgl_call > function? >2. call the fgl_end in every source C file ? >3. call the fgl_end once in the souce C file which contains > fgl_start function? >4. call the fgl_end at the end of the application ? > >Thanx > The correct choice is number 4. We have run into several problems you should be aware of, however. 1. If you exec to a new process, your sqlexec/sqlturbo will not shut down unless you call sqlexit; 2. Unless you have the very latest version, fgl_end leaves a file open (I believe it is a .iem file that the 4GL opens), so if you exec, you will gradually build up the number of open files (bug #39870); 3. There has been a memory leak in popquote (bug #39868). We are close to receiving a patch from Informix for items 2 and 3. I do not know if they are fixed in the 6.02. If you are on SCO 3.2.4.2, you will have to ask for a patch, as Informix won't create a release past 6.01.ud4 for that platform. John Prideaux alastl@ix.netcom.com