$SYNCH

   Checks the completion status of a system service that completes
   asynchronously.

   On Alpha and Integrity server systems, this service accepts 64-
   bit addresses.

   Format

     SYS$SYNCH  [efn] ,[iosb]

   C Prototype

     int sys$synch  (unsigned int efn, struct _iosb *iosb);
 

Additional information available:

Arguments