OP_REQUIRED
{ 0x0002, "print-job", ipp_print_job, OP_REQUIRED },
OP_REQUIRED },
{ 0x000a, "get-jobs", ipp_get_jobs, OP_REQUIRED },
OP_REQUIRED },
{ 0x0008, "cancel-job", ipp_cancel_job, OP_REQUIRED },
OP_REQUIRED },
if (handlers[i].type == OP_REQUIRED)