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Tweak CIRC_BW event based on comments by nickm.

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- Rename n_read and n_written in origin_circuit_t to make it clear that
  these are only used for CIRC_BW events.
- Extract new code in control_update_global_event_mask to new
  clear_circ_bw_fields function.
This commit is contained in:
Karsten Loesing 2013-05-25 13:04:33 +02:00
parent ef67077fba
commit b33b366a7f
3 changed files with 34 additions and 25 deletions
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14
src/or/connection.c
View File

@ -3271,7 +3271,7 @@ connection_read_to_buf(connection_t *conn, ssize_t *max_to_read,
/* change *max_to_read */
*max_to_read = at_most - n_read;
/* Update edge_conn->n_read and ocirc->n_read */
/* Update edge_conn->n_read and ocirc->n_read_circ_bw */
if (conn->type == CONN_TYPE_AP) {
edge_connection_t *edge_conn = TO_EDGE_CONN(conn);
circuit_t *circ = circuit_get_by_edge_conn(edge_conn);
@ -3285,10 +3285,10 @@ connection_read_to_buf(connection_t *conn, ssize_t *max_to_read,
if (circ && CIRCUIT_IS_ORIGIN(circ)) {
ocirc = TO_ORIGIN_CIRCUIT(circ);
if (PREDICT_LIKELY(UINT32_MAX - ocirc->n_read > n_read))
ocirc->n_read += (int)n_read;
if (PREDICT_LIKELY(UINT32_MAX - ocirc->n_read_circ_bw > n_read))
ocirc->n_read_circ_bw += (int)n_read;
else
ocirc->n_read = UINT32_MAX;
ocirc->n_read_circ_bw = UINT32_MAX;
}
}
@ -3752,10 +3752,10 @@ connection_handle_write_impl(connection_t *conn, int force)
if (circ && CIRCUIT_IS_ORIGIN(circ)) {
ocirc = TO_ORIGIN_CIRCUIT(circ);
if (PREDICT_LIKELY(UINT32_MAX - ocirc->n_written > n_written))
ocirc->n_written += (int)n_written;
if (PREDICT_LIKELY(UINT32_MAX - ocirc->n_written_circ_bw > n_written))
ocirc->n_written_circ_bw += (int)n_written;
else
ocirc->n_written = UINT32_MAX;
ocirc->n_written_circ_bw = UINT32_MAX;
}
}

35
src/or/control.c
View File

@ -237,6 +237,20 @@ log_severity_to_event(int severity)
}
}
/** Helper: clear bandwidth counters of all origin circuits. */
static void
clear_circ_bw_fields(void)
{
circuit_t *circ;
origin_circuit_t *ocirc;
for (circ = circuit_get_global_list_(); circ; circ = circ->next) {
if (!CIRCUIT_IS_ORIGIN(circ))
continue;
ocirc = TO_ORIGIN_CIRCUIT(circ);
ocirc->n_written_circ_bw = ocirc->n_read_circ_bw = 0;
}
}
/** Set <b>global_event_mask*</b> to the bitwise OR of each live control
* connection's event_mask field. */
void
@ -276,14 +290,7 @@ control_update_global_event_mask(void)
}
if (! (old_mask & EVENT_CIRC_BANDWIDTH_USED) &&
(new_mask & EVENT_CIRC_BANDWIDTH_USED)) {
circuit_t *circ;
origin_circuit_t *ocirc;
for (circ = circuit_get_global_list_(); circ; circ = circ->next) {
if (!CIRCUIT_IS_ORIGIN(circ))
continue;
ocirc = TO_ORIGIN_CIRCUIT(circ);
ocirc->n_written = ocirc->n_read = 0;
}
clear_circ_bw_fields();
}
}
@ -3893,8 +3900,8 @@ control_event_stream_bandwidth(edge_connection_t *edge_conn)
circ = circuit_get_by_edge_conn(edge_conn);
if (circ && CIRCUIT_IS_ORIGIN(circ)) {
ocirc = TO_ORIGIN_CIRCUIT(circ);
ocirc->n_read += edge_conn->n_read;
ocirc->n_written += edge_conn->n_written;
ocirc->n_read_circ_bw += edge_conn->n_read;
ocirc->n_written_circ_bw += edge_conn->n_written;
}
edge_conn->n_written = edge_conn->n_read = 0;
}
@ -3947,14 +3954,14 @@ control_event_circ_bandwidth_used(void)
if (!CIRCUIT_IS_ORIGIN(circ))
continue;
ocirc = TO_ORIGIN_CIRCUIT(circ);
if (!ocirc->n_read && !ocirc->n_written)
if (!ocirc->n_read_circ_bw && !ocirc->n_written_circ_bw)
continue;
send_control_event(EVENT_CIRC_BANDWIDTH_USED, ALL_FORMATS,
"650 CIRC_BW ID=%d READ=%lu WRITTEN=%lu\r\n",
ocirc->global_identifier,
(unsigned long)ocirc->n_read,
(unsigned long)ocirc->n_written);
ocirc->n_written = ocirc->n_read = 0;
(unsigned long)ocirc->n_read_circ_bw,
(unsigned long)ocirc->n_written_circ_bw);
ocirc->n_written_circ_bw = ocirc->n_read_circ_bw = 0;
}
return 0;

10
src/or/or.h
View File

@ -2971,12 +2971,14 @@ typedef struct origin_circuit_t {
edge_connection_t *p_streams;
/** Bytes read from any attached stream since last call to
* control_event_circ_bandwidth_used() */
uint32_t n_read;
* control_event_circ_bandwidth_used(). Only used if we're configured
* to emit CIRC_BW events. */
uint32_t n_read_circ_bw;
/** Bytes written to any attached stream since last call to
* control_event_circ_bandwidth_used() */
uint32_t n_written;
* control_event_circ_bandwidth_used(). Only used if we're configured
* to emit CIRC_BW events. */
uint32_t n_written_circ_bw;
/** Build state for this circuit. It includes the intended path
* length, the chosen exit router, rendezvous information, etc.