Pathmaker Programming Guide

Coding Custom Services
Creating Services and Servers
4–42 067868 Tandem Computers Incorporated
Example 6: Update.
?section svc-006
/*
Transaction logic module for service : SVC-006
Update employee record
*/
void svc_006setup ( T9154_SERVICE_CONTROL *control )
{
}
void svc_006cleanup ( T9154_SERVICE_CONTROL *control )
{
}
void svc_006 ( T9154_SERVICE_REQUEST *request,
T9154_SERVICE_REPLY *reply,
T9154_SERVICE_CONTROL *control )
{
#include <string.h>
short cc;
reply->t9154_header.reply_code = REPLY_SHORT;
if ( lfseekkey ( &control->file.employee_file,
(short) 0,
LFSK_EXACT,
&request->employee_rec.emp_no,
sizeof request->employee_rec.emp_no,
NULL,
0,
0 ))
{
return;
}
cc = ( lfreadupdate ( &control->file.employee_file,
&reply->employee_rec, sizeof reply->employee_rec));
if (cc != LFE_OK)
{
%INVOKE "evaluate-read-error"
return;
}
if ( lfwriteupdate ( &control->file.employee_file,
&request->employee_rec, sizeof request->employee_rec));
{
return;
}
else
svc_advisory (REPLY_NORMAL, "Record updated successfully");
}