Experimental Physics and
Industrial Control System

Firmin Oliveira <[email protected]> · Thu, 17 Jul 1997 10:19:14 -1000 (HST)

Hello,

I have little to no EPICS channel access experience

I have been trying to run my program with ca_add_fd_registration. It
compiles/links okay, but when run it produces a segmentation fault upon
entry into ca_add_fd_registration.  I have tried every combination of
arguments I know into the routine but it continually gets a segmentation
fault.  When the ca_add_fd_registration statement is commented out, the rest of the
channel access routines work just fine (ca_task_initialize,
ca_search_and_connect, ca_get, SEVCHK, ca_add_event.)  To be more specific
about the problem:

   include "cadef.h"
   void FdRegHandler(void *, int, int);
   ...

   main()
 {
   int CaStatus;
   my_struct vparm;
   ...

   CaStatus = ca_add_fd_registration(FdRegHandler,&vparm);
   (Note: Segmentation fault occurs in above statement)
   ...

}

void FdRegHandler(void *vparm, int fd, int cond)
{
   printf("In FdRegHandler\n");      (Note: this does not get printed)
}

Any help you can give would be appreciated.

Aloha,

Firmin Oliveira

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System