commit 7884ce76e100abc220ddedb76c9b98d22d66d645 Author: Caio Valente valentecaio95@gmail.com Date: Thu Feb 1 03:12:38 2018 +0100

refactor: rename connection_t struct fields.

connection_t.timestamp_lastwritten renamed to connection_t.timestamp_last_write_allowed

connection_t.timestamp_lastread renamed to connection_t.timestamp_last_read_allowed

Closes ticket 24714. --- changes/ticket24714 | 6 ++++++ src/or/circuituse.c | 2 +- src/or/connection.c | 14 +++++++------- src/or/connection_edge.c | 6 +++--- src/or/directory.c | 2 +- src/or/hs_client.c | 4 ++-- src/or/main.c | 18 ++++++++++-------- src/or/or.h | 8 ++++---- src/or/relay.c | 2 +- src/or/rendclient.c | 4 ++-- 10 files changed, 37 insertions(+), 29 deletions(-)

diff --git a/changes/ticket24714 b/changes/ticket24714 new file mode 100644 index 000000000..60353abec --- /dev/null +++ b/changes/ticket24714 @@ -0,0 +1,6 @@ + o Code simplification and refactoring: + - Rename two fields of connection_t struct. + timestamp_lastwritten is renamed to timestamp_last_write_allowed and + timestamp_lastread is renamed to timestamp_last_read_allowed. + Closes ticket 24714, patch by "valentecaio". + diff --git a/src/or/circuituse.c b/src/or/circuituse.c index 3a14a3ccf..1af0b178d 100644 --- a/src/or/circuituse.c +++ b/src/or/circuituse.c @@ -2585,7 +2585,7 @@ link_apconn_to_circ(entry_connection_t *apconn, origin_circuit_t *circ, log_debug(LD_APP|LD_CIRC, "attaching new conn to circ. n_circ_id %u.", (unsigned)circ->base_.n_circ_id); /* reset it, so we can measure circ timeouts */ - ENTRY_TO_CONN(apconn)->timestamp_lastread = time(NULL); + ENTRY_TO_CONN(apconn)->timestamp_last_read_allowed = time(NULL); ENTRY_TO_EDGE_CONN(apconn)->next_stream = circ->p_streams; ENTRY_TO_EDGE_CONN(apconn)->on_circuit = TO_CIRCUIT(circ); /* assert_connection_ok(conn, time(NULL)); */ diff --git a/src/or/connection.c b/src/or/connection.c index 5bbb61dfa..93b7847f1 100644 --- a/src/or/connection.c +++ b/src/or/connection.c @@ -462,8 +462,8 @@ connection_init(time_t now, connection_t *conn, int type, int socket_family) }

conn->timestamp_created = now; - conn->timestamp_lastread = now; - conn->timestamp_lastwritten = now; + conn->timestamp_last_read_allowed = now; + conn->timestamp_last_write_allowed = now; }

/** Create a link between <b>conn_a</b> and <b>conn_b</b>. */ @@ -861,7 +861,7 @@ connection_mark_for_close_internal_, (connection_t *conn, /* in case we're going to be held-open-til-flushed, reset * the number of seconds since last successful write, so * we get our whole 15 seconds */ - conn->timestamp_lastwritten = time(NULL); + conn->timestamp_last_write_allowed = time(NULL); }

/** Find each connection that has hold_open_until_flushed set to @@ -883,7 +883,7 @@ connection_expire_held_open(void) */ if (conn->hold_open_until_flushed) { tor_assert(conn->marked_for_close); - if (now - conn->timestamp_lastwritten >= 15) { + if (now - conn->timestamp_last_write_allowed >= 15) { int severity; if (conn->type == CONN_TYPE_EXIT || (conn->type == CONN_TYPE_DIR && @@ -3420,7 +3420,7 @@ connection_handle_read_impl(connection_t *conn) if (conn->marked_for_close) return 0; /* do nothing */

- conn->timestamp_lastread = approx_time(); + conn->timestamp_last_read_allowed = approx_time();

switch (conn->type) { case CONN_TYPE_OR_LISTENER: @@ -3821,7 +3821,7 @@ update_send_buffer_size(tor_socket_t sock) * when libevent tells us that conn wants to write, or below * from connection_buf_add() when an entire TLS record is ready. * - * Update <b>conn</b>->timestamp_lastwritten to now, and call flush_buf + * Update <b>conn</b>->timestamp_last_write_allowed to now, and call flush_buf * or flush_buf_tls appropriately. If it succeeds and there are no more * more bytes on <b>conn</b>->outbuf, then call connection_finished_flushing * on it too. @@ -3854,7 +3854,7 @@ connection_handle_write_impl(connection_t *conn, int force) return 0; }

- conn->timestamp_lastwritten = now; + conn->timestamp_last_write_allowed = now;

/* Sometimes, "writable" means "connected". */ if (connection_state_is_connecting(conn)) { diff --git a/src/or/connection_edge.c b/src/or/connection_edge.c index a47f044e0..948c8722b 100644 --- a/src/or/connection_edge.c +++ b/src/or/connection_edge.c @@ -739,7 +739,7 @@ connection_ap_expire_beginning(void) /* if it's an internal linked connection, don't yell its status. */ severity = (tor_addr_is_null(&base_conn->addr) && !base_conn->port) ? LOG_INFO : LOG_NOTICE; - seconds_idle = (int)( now - base_conn->timestamp_lastread ); + seconds_idle = (int)( now - base_conn->timestamp_last_read_allowed ); seconds_since_born = (int)( now - base_conn->timestamp_created );

if (base_conn->state == AP_CONN_STATE_OPEN) @@ -825,7 +825,7 @@ connection_ap_expire_beginning(void) mark_circuit_unusable_for_new_conns(TO_ORIGIN_CIRCUIT(circ));

/* give our stream another 'cutoff' seconds to try */ - conn->base_.timestamp_lastread += cutoff; + conn->base_.timestamp_last_read_allowed += cutoff; if (entry_conn->num_socks_retries < 250) /* avoid overflow */ entry_conn->num_socks_retries++; /* move it back into 'pending' state, and try to attach. */ @@ -1135,7 +1135,7 @@ connection_ap_detach_retriable(entry_connection_t *conn, int reason) { control_event_stream_status(conn, STREAM_EVENT_FAILED_RETRIABLE, reason); - ENTRY_TO_CONN(conn)->timestamp_lastread = time(NULL); + ENTRY_TO_CONN(conn)->timestamp_last_read_allowed = time(NULL);

/* Roll back path bias use state so that we probe the circuit * if nothing else succeeds on it */ diff --git a/src/or/directory.c b/src/or/directory.c index c55f81bc6..f5f9e3e55 100644 --- a/src/or/directory.c +++ b/src/or/directory.c @@ -2437,7 +2437,7 @@ connection_dir_client_reached_eof(dir_connection_t *conn) * and the date header. (We used to check now-date_header, but that's * inaccurate if we spend a lot of time downloading.) */ - apparent_skew = conn->base_.timestamp_lastwritten - date_header; + apparent_skew = conn->base_.timestamp_last_write_allowed - date_header; if (labs(apparent_skew)>ALLOW_DIRECTORY_TIME_SKEW) { int trusted = router_digest_is_trusted_dir(conn->identity_digest); clock_skew_warning(TO_CONN(conn), apparent_skew, trusted, LD_HTTP, diff --git a/src/or/hs_client.c b/src/or/hs_client.c index 2999f85d3..931145364 100644 --- a/src/or/hs_client.c +++ b/src/or/hs_client.c @@ -1439,8 +1439,8 @@ hs_client_desc_has_arrived(const hs_ident_dir_conn_t *ident) * connection is considered "fresh" and can continue without being closed * too early. */ base_conn->timestamp_created = now; - base_conn->timestamp_lastread = now; - base_conn->timestamp_lastwritten = now; + base_conn->timestamp_last_read_allowed = now; + base_conn->timestamp_last_write_allowed = now; /* Change connection's state into waiting for a circuit. */ base_conn->state = AP_CONN_STATE_CIRCUIT_WAIT;

diff --git a/src/or/main.c b/src/or/main.c index 96c7e77c7..b7e223e48 100644 --- a/src/or/main.c +++ b/src/or/main.c @@ -1008,7 +1008,8 @@ conn_close_if_marked(int i) LOG_FN_CONN(conn, (LOG_INFO,LD_NET, "Holding conn (fd %d) open for more flushing.", (int)conn->s)); - conn->timestamp_lastwritten = now; /* reset so we can flush more */ + conn->timestamp_last_write_allowed = now; /* reset so we can flush + * more */ } else if (sz == 0) { /* Also, retval==0. If we get here, we didn't want to write anything * (because of rate-limiting) and we didn't. */ @@ -1159,7 +1160,7 @@ run_connection_housekeeping(int i, time_t now) channel_t *chan = NULL; int have_any_circuits; int past_keepalive = - now >= conn->timestamp_lastwritten + options->KeepalivePeriod; + now >= conn->timestamp_last_write_allowed + options->KeepalivePeriod;

if (conn->outbuf && !connection_get_outbuf_len(conn) && conn->type == CONN_TYPE_OR) @@ -1174,10 +1175,10 @@ run_connection_housekeeping(int i, time_t now) * if a server or received if a client) for 5 min */ if (conn->type == CONN_TYPE_DIR && ((DIR_CONN_IS_SERVER(conn) && - conn->timestamp_lastwritten + conn->timestamp_last_write_allowed + options->TestingDirConnectionMaxStall < now) || (!DIR_CONN_IS_SERVER(conn) && - conn->timestamp_lastread + conn->timestamp_last_read_allowed + options->TestingDirConnectionMaxStall < now))) { log_info(LD_DIR,"Expiring wedged directory conn (fd %d, purpose %d)", (int)conn->s, conn->purpose); @@ -1253,13 +1254,14 @@ run_connection_housekeeping(int i, time_t now) connection_or_close_normally(TO_OR_CONN(conn), 0); } else if ( now >= or_conn->timestamp_lastempty + options->KeepalivePeriod*10 && - now >= conn->timestamp_lastwritten + options->KeepalivePeriod*10) { + now >= + conn->timestamp_last_write_allowed + options->KeepalivePeriod*10) { log_fn(LOG_PROTOCOL_WARN,LD_PROTOCOL, "Expiring stuck OR connection to fd %d (%s:%d). (%d bytes to " "flush; %d seconds since last write)", (int)conn->s, conn->address, conn->port, (int)connection_get_outbuf_len(conn), - (int)(now-conn->timestamp_lastwritten)); + (int)(now-conn->timestamp_last_write_allowed)); connection_or_close_normally(TO_OR_CONN(conn), 0); } else if (past_keepalive && !connection_get_outbuf_len(conn)) { /* send a padding cell */ @@ -3047,13 +3049,13 @@ dumpstats(int severity) i, (int)connection_get_inbuf_len(conn), (int)buf_allocation(conn->inbuf), - (int)(now - conn->timestamp_lastread)); + (int)(now - conn->timestamp_last_read_allowed)); tor_log(severity,LD_GENERAL, "Conn %d: %d bytes waiting on outbuf " "(len %d, last written %d secs ago)",i, (int)connection_get_outbuf_len(conn), (int)buf_allocation(conn->outbuf), - (int)(now - conn->timestamp_lastwritten)); + (int)(now - conn->timestamp_last_write_allowed)); if (conn->type == CONN_TYPE_OR) { or_connection_t *or_conn = TO_OR_CONN(conn); if (or_conn->tls) { diff --git a/src/or/or.h b/src/or/or.h index 0436533a9..7177045e4 100644 --- a/src/or/or.h +++ b/src/or/or.h @@ -1361,10 +1361,10 @@ typedef struct connection_t { * connection. */ size_t outbuf_flushlen; /**< How much data should we try to flush from the * outbuf? */ - time_t timestamp_lastread; /**< When was the last time libevent said we could - * read? */ - time_t timestamp_lastwritten; /**< When was the last time libevent said we - * could write? */ + time_t timestamp_last_read_allowed; /**< When was the last time libevent said + * we could read? */ + time_t timestamp_last_write_allowed; /**< When was the last time libevent + * said we could write? */

time_t timestamp_created; /**< When was this connection_t created? */

diff --git a/src/or/relay.c b/src/or/relay.c index b1b99526d..caccb1282 100644 --- a/src/or/relay.c +++ b/src/or/relay.c @@ -1449,7 +1449,7 @@ connection_edge_process_relay_cell_not_open( "after %d seconds.", (unsigned)circ->n_circ_id, rh->stream_id, - (int)(time(NULL) - conn->base_.timestamp_lastread)); + (int)(time(NULL) - conn->base_.timestamp_last_read_allowed)); if (connected_cell_parse(rh, cell, &addr, &ttl) < 0) { log_fn(LOG_PROTOCOL_WARN, LD_APP, "Got a badly formatted connected cell. Closing."); diff --git a/src/or/rendclient.c b/src/or/rendclient.c index 07fa33306..29f1d9bd1 100644 --- a/src/or/rendclient.c +++ b/src/or/rendclient.c @@ -915,8 +915,8 @@ rend_client_desc_trynow(const char *query) /* restart their timeout values, so they get a fair shake at * connecting to the hidden service. */ base_conn->timestamp_created = now; - base_conn->timestamp_lastread = now; - base_conn->timestamp_lastwritten = now; + base_conn->timestamp_last_read_allowed = now; + base_conn->timestamp_last_write_allowed = now;

connection_ap_mark_as_pending_circuit(conn); } else { /* 404, or fetch didn't get that far */