usumhit
Computes the specified aggregate computation or computations when called for all selected records in Select mode 4.
void usumhit
(uc);
struct uctrl
*uc;
Parameters
uc—address of the current control block.
Return Values
Not applicable.
Description
Computes the specified aggregate computation or computations when called for all selected records in Select mode 4.
When usumhit
is
called, the fields involved in the aggregate computation, the actual
lengths of the fields, and the record must be available to Uniface.
This example returns
records that are found during the Select connector request. The usumhit
service function is called
to calculate the aggregate when the mode of request is 4.
The DrvAdminType data type is created for
this example, it holds the PRA in its PRA field. Such a structure
would usually be stored in the connector workspace (uctrl->udrv
).
ReturnRecordsFoundInSelect ( struct uctrl *ControlBlock, DrvAdminType *ConnectorAdministration ) { unsigned char Dummy; if ( ControlBlock->umode == 1 || ControlBlock->umode == 2 ) { /* Ready: modes 1 and 2 do not require hit. */ } else { if ( ControlBlock->umode == 4 ) { usumhit ( ControlBlock ); } else { /* For modes 0 and 3 */ ubldprim ( ControlBlock, DrvAdministration->PKBuffer ); uaddrec ( ControlBlock, DrvAdministration->PRA, ControlBlock->uralen, DrvAdministration->PKBuffer, ControlBlock->uprimlen, (unsigned char*)Dummy, 0 ); } } }