QMGR_QUEUE *qmgr_queue_create(QMGR_TRANSPORT *transport, const char *name,
const char *nexthop)
{
QMGR_QUEUE *queue;
/*
* If possible, choose an initial concurrency of > 1 so that one bad
* message or one bad network won't slow us down unnecessarily.
*/
queue = (QMGR_QUEUE *) mymalloc(sizeof(QMGR_QUEUE));
qmgr_queue_count++;
queue->dflags = 0;
queue->last_done = 0;
queue->name = mystrdup(name);
queue->nexthop = mystrdup(nexthop);
queue->todo_refcount = 0;
queue->busy_refcount = 0;
queue->transport = transport;
queue->window = transport->init_dest_concurrency;
queue->success = queue->failure = queue->fail_cohorts = 0;
QMGR_LIST_INIT(queue->todo);
QMGR_LIST_INIT(queue->busy);
queue->dsn = 0;
queue->clog_time_to_warn = 0;
QMGR_LIST_PREPEND(transport->queue_list, queue);
htable_enter(transport->queue_byname, name, (char *) queue);
return (queue);
}
QMGR_TRANSPORT *qmgr_transport_create(const char *name)
{
QMGR_TRANSPORT *transport;
if (htable_find(qmgr_transport_byname, name) != 0)
msg_panic("qmgr_transport_create: transport exists: %s", name);
transport = (QMGR_TRANSPORT *) mymalloc(sizeof(QMGR_TRANSPORT));
transport->flags = 0;
transport->pending = 0;
transport->name = mystrdup(name);
/*
* Use global configuration settings or transport-specific settings.
*/
transport->dest_concurrency_limit =
get_mail_conf_int2(name, _DEST_CON_LIMIT,
var_dest_con_limit, 0, 0);
transport->recipient_limit =
get_mail_conf_int2(name, _DEST_RCPT_LIMIT,
var_dest_rcpt_limit, 0, 0);
transport->init_dest_concurrency =
get_mail_conf_int2(name, _INIT_DEST_CON,
var_init_dest_concurrency, 1, 0);
transport->xport_rate_delay = get_mail_conf_time2(name, _XPORT_RATE_DELAY,
var_xport_rate_delay,
's', 0, 0);
transport->rate_delay = get_mail_conf_time2(name, _DEST_RATE_DELAY,
var_dest_rate_delay,
's', 0, 0);
if (transport->rate_delay > 0)
transport->dest_concurrency_limit = 1;
if (transport->dest_concurrency_limit != 0
&& transport->dest_concurrency_limit < transport->init_dest_concurrency)
transport->init_dest_concurrency = transport->dest_concurrency_limit;
transport->slot_cost = get_mail_conf_int2(name, _DELIVERY_SLOT_COST,
var_delivery_slot_cost, 0, 0);
transport->slot_loan = get_mail_conf_int2(name, _DELIVERY_SLOT_LOAN,
var_delivery_slot_loan, 0, 0);
transport->slot_loan_factor =
100 - get_mail_conf_int2(name, _DELIVERY_SLOT_DISCOUNT,
var_delivery_slot_discount, 0, 100);
transport->min_slots = get_mail_conf_int2(name, _MIN_DELIVERY_SLOTS,
var_min_delivery_slots, 0, 0);
transport->rcpt_unused = get_mail_conf_int2(name, _XPORT_RCPT_LIMIT,
var_xport_rcpt_limit, 0, 0);
transport->rcpt_per_stack = get_mail_conf_int2(name, _STACK_RCPT_LIMIT,
var_stack_rcpt_limit, 0, 0);
transport->refill_limit = get_mail_conf_int2(name, _XPORT_REFILL_LIMIT,
var_xport_refill_limit, 1, 0);
transport->refill_delay = get_mail_conf_time2(name, _XPORT_REFILL_DELAY,
var_xport_refill_delay, 's', 1, 0);
transport->queue_byname = htable_create(0);
QMGR_LIST_INIT(transport->queue_list);
transport->job_byname = htable_create(0);
QMGR_LIST_INIT(transport->job_list);
QMGR_LIST_INIT(transport->job_bytime);
transport->job_current = 0;
transport->job_next_unread = 0;
transport->candidate_cache = 0;
transport->candidate_cache_current = 0;
transport->candidate_cache_time = (time_t) 0;
transport->blocker_tag = 1;
transport->dsn = 0;
qmgr_feedback_init(&transport->pos_feedback, name, _CONC_POS_FDBACK,
VAR_CONC_POS_FDBACK, var_conc_pos_feedback);
qmgr_feedback_init(&transport->neg_feedback, name, _CONC_NEG_FDBACK,
VAR_CONC_NEG_FDBACK, var_conc_neg_feedback);
transport->fail_cohort_limit =
get_mail_conf_int2(name, _CONC_COHORT_LIM,
var_conc_cohort_limit, 0, 0);
if (qmgr_transport_byname == 0)
qmgr_transport_byname = htable_create(10);
htable_enter(qmgr_transport_byname, name, (void *) transport);
QMGR_LIST_PREPEND(qmgr_transport_list, transport, peers);
if (msg_verbose)
msg_info("qmgr_transport_create: %s concurrency %d recipients %d",
transport->name, transport->dest_concurrency_limit,
transport->recipient_limit);
return (transport);
}
