/** Allocate a new or_circuit_t, connected to <b>p_conn</b> as
* <b>p_circ_id</b>. If <b>p_conn</b> is NULL, the circuit is unattached. */
or_circuit_t *
or_circuit_new(circid_t p_circ_id, or_connection_t *p_conn)
{
/* CircIDs */
or_circuit_t *circ;
circ = tor_malloc_zero(sizeof(or_circuit_t));
circ->_base.magic = OR_CIRCUIT_MAGIC;
if (p_conn)
circuit_set_p_circid_orconn(circ, p_circ_id, p_conn);
circ->remaining_relay_early_cells = MAX_RELAY_EARLY_CELLS_PER_CIRCUIT;
init_circuit_base(TO_CIRCUIT(circ));
/* Initialize the cell_ewma_t structure */
/* Initialize the cell counts to 0 */
circ->p_cell_ewma.cell_count = 0.0;
circ->p_cell_ewma.last_adjusted_tick = cell_ewma_get_tick();
circ->p_cell_ewma.is_for_p_conn = 1;
/* It's not in any heap yet. */
circ->p_cell_ewma.heap_index = -1;
return circ;
}
static circuitmux_policy_data_t *
ewma_alloc_cmux_data(circuitmux_t *cmux)
{
ewma_policy_data_t *pol = NULL;
tor_assert(cmux);
pol = tor_malloc_zero(sizeof(*pol));
pol->base_.magic = EWMA_POL_DATA_MAGIC;
pol->active_circuit_pqueue = smartlist_new();
pol->active_circuit_pqueue_last_recalibrated = cell_ewma_get_tick();
return TO_CMUX_POL_DATA(pol);
}
/** Initialize the common elements in a circuit_t, and add it to the global
* list. */
static void
init_circuit_base(circuit_t *circ)
{
tor_gettimeofday(&circ->timestamp_created);
circ->package_window = circuit_initial_package_window();
circ->deliver_window = CIRCWINDOW_START;
/* Initialize the cell_ewma_t structure */
circ->n_cell_ewma.last_adjusted_tick = cell_ewma_get_tick();
circ->n_cell_ewma.cell_count = 0.0;
circ->n_cell_ewma.heap_index = -1;
circ->n_cell_ewma.is_for_p_conn = 0;
circuit_add(circ);
}
static circuitmux_policy_circ_data_t *
ewma_alloc_circ_data(circuitmux_t *cmux,
circuitmux_policy_data_t *pol_data,
circuit_t *circ,
cell_direction_t direction,
unsigned int cell_count)
{
ewma_policy_circ_data_t *cdata = NULL;
tor_assert(cmux);
tor_assert(pol_data);
tor_assert(circ);
tor_assert(direction == CELL_DIRECTION_OUT ||
direction == CELL_DIRECTION_IN);
/* Shut the compiler up without triggering -Wtautological-compare */
(void)cell_count;
cdata = tor_malloc_zero(sizeof(*cdata));
cdata->base_.magic = EWMA_POL_CIRC_DATA_MAGIC;
cdata->circ = circ;
/*
* Initialize the cell_ewma_t structure (formerly in
* init_circuit_base())
*/
cdata->cell_ewma.last_adjusted_tick = cell_ewma_get_tick();
cdata->cell_ewma.cell_count = 0.0;
cdata->cell_ewma.heap_index = -1;
if (direction == CELL_DIRECTION_IN) {
cdata->cell_ewma.is_for_p_chan = 1;
} else {
cdata->cell_ewma.is_for_p_chan = 0;
}
return TO_CMUX_POL_CIRC_DATA(cdata);
}
