use tokio_postgres::{Client, Connection, NoTls, Socket};
use tokio_postgres::tls::NoTlsStream;
+use futures::StreamExt;
+
use crate::{config, TestLogger};
use crate::serialization::MutatedProperties;
/// after `last_sync_timestamp`
pub(super) async fn fetch_channel_announcements(delta_set: &mut DeltaSet, network_graph: Arc<NetworkGraph<TestLogger>>, client: &Client, last_sync_timestamp: u32) {
println!("Obtaining channel ids from network graph");
+ let last_sync_timestamp_object = SystemTime::UNIX_EPOCH.add(Duration::from_secs(last_sync_timestamp as u64));
let channel_ids = {
let read_only_graph = network_graph.read_only();
println!("Retrieved read-only network graph copy");
println!("Obtaining corresponding database entries");
// get all the channel announcements that are currently in the network graph
- let announcement_rows = client.query("SELECT announcement_signed, seen FROM channel_announcements WHERE short_channel_id = any($1) ORDER BY short_channel_id ASC", &[&channel_ids]).await.unwrap();
+ let announcement_rows = client.query_raw("SELECT announcement_signed, seen FROM channel_announcements WHERE short_channel_id = any($1) ORDER BY short_channel_id ASC", [&channel_ids]).await.unwrap();
+ let mut pinned_rows = Box::pin(announcement_rows);
- for current_announcement_row in announcement_rows {
+ while let Some(row_res) = pinned_rows.next().await {
+ let current_announcement_row = row_res.unwrap();
let blob: Vec<u8> = current_announcement_row.get("announcement_signed");
let mut readable = Cursor::new(blob);
let unsigned_announcement = ChannelAnnouncement::read(&mut readable).unwrap().contents;
// here is where the channels whose first update in either direction occurred after
// `last_seen_timestamp` are added to the selection
- let newer_oldest_directional_updates = client.query("
- SELECT DISTINCT ON (short_channel_id) *
- FROM (
- SELECT DISTINCT ON (short_channel_id, direction) short_channel_id, seen
- FROM channel_updates
- WHERE short_channel_id = any($1)
- ORDER BY seen ASC, short_channel_id ASC, direction ASC
- ) AS directional_last_seens
- ORDER BY short_channel_id ASC, seen DESC
- ", &[&channel_ids]).await.unwrap();
+ let params: [&(dyn tokio_postgres::types::ToSql + Sync); 2] =
+ [&channel_ids, &last_sync_timestamp_object];
+ let newer_oldest_directional_updates = client.query_raw("
+ SELECT * FROM (
+ SELECT DISTINCT ON (short_channel_id) *
+ FROM (
+ SELECT DISTINCT ON (short_channel_id, direction) short_channel_id, seen
+ FROM channel_updates
+ WHERE short_channel_id = any($1)
+ ORDER BY short_channel_id ASC, direction ASC, seen ASC
+ ) AS directional_last_seens
+ ORDER BY short_channel_id ASC, seen DESC
+ ) AS distinct_chans
+ WHERE distinct_chans.seen >= $2
+ ", params).await.unwrap();
+ let mut pinned_updates = Box::pin(newer_oldest_directional_updates);
+
+ while let Some(row_res) = pinned_updates.next().await {
+ let current_row = row_res.unwrap();
- for current_row in newer_oldest_directional_updates {
let scid: i64 = current_row.get("short_channel_id");
let current_seen_timestamp_object: SystemTime = current_row.get("seen");
let current_seen_timestamp: u32 = current_seen_timestamp_object.duration_since(SystemTime::UNIX_EPOCH).unwrap().as_secs() as u32;
- if current_seen_timestamp > last_sync_timestamp {
- // the newer of the two oldest seen directional updates came after last sync timestamp
- let current_channel_delta = delta_set.entry(scid as u64).or_insert(ChannelDelta::default());
- // first time a channel was seen in both directions
- (*current_channel_delta).first_bidirectional_updates_seen = Some(current_seen_timestamp);
- }
+ // the newer of the two oldest seen directional updates came after last sync timestamp
+ let current_channel_delta = delta_set.entry(scid as u64).or_insert(ChannelDelta::default());
+ // first time a channel was seen in both directions
+ (*current_channel_delta).first_bidirectional_updates_seen = Some(current_seen_timestamp);
}
}
// Steps:
// — Obtain all updates, distinct by (scid, direction), ordered by seen DESC
// — From those updates, select distinct by (scid), ordered by seen ASC (to obtain the older one per direction)
- let current_timestamp = SystemTime::now().duration_since(SystemTime::UNIX_EPOCH).unwrap().as_secs() as u32;
- let reminder_threshold_timestamp = current_timestamp.saturating_sub(config::CHANNEL_REMINDER_AGE);
- let read_only_graph = network_graph.read_only();
+ let reminder_threshold_timestamp = SystemTime::now().checked_sub(config::CHANNEL_REMINDER_AGE).unwrap();
+
+ let params: [&(dyn tokio_postgres::types::ToSql + Sync); 2] =
+ [&channel_ids, &reminder_threshold_timestamp];
+ let older_latest_directional_updates = client.query_raw("
+ SELECT short_channel_id FROM (
+ SELECT DISTINCT ON (short_channel_id) *
+ FROM (
+ SELECT DISTINCT ON (short_channel_id, direction) short_channel_id, seen
+ FROM channel_updates
+ WHERE short_channel_id = any($1)
+ ORDER BY short_channel_id ASC, direction ASC, seen DESC
+ ) AS directional_last_seens
+ ORDER BY short_channel_id ASC, seen ASC
+ ) AS distinct_chans
+ WHERE distinct_chans.seen <= $2
+ ", params).await.unwrap();
+ let mut pinned_updates = Box::pin(older_latest_directional_updates);
+
+ while let Some(row_res) = pinned_updates.next().await {
+ let current_row = row_res.unwrap();
+ let scid: i64 = current_row.get("short_channel_id");
- let older_latest_directional_updates = client.query("
- SELECT DISTINCT ON (short_channel_id) *
- FROM (
- SELECT DISTINCT ON (short_channel_id, direction) short_channel_id, seen
- FROM channel_updates
- WHERE short_channel_id = any($1)
- ORDER BY short_channel_id ASC, direction ASC, seen DESC
- ) AS directional_last_seens
- ORDER BY short_channel_id ASC, seen ASC
- ", &[&channel_ids]).await.unwrap();
+ // annotate this channel as requiring that reminders be sent to the client
+ let current_channel_delta = delta_set.entry(scid as u64).or_insert(ChannelDelta::default());
- for current_row in older_latest_directional_updates {
- let scid: i64 = current_row.get("short_channel_id");
- let current_seen_timestamp_object: SystemTime = current_row.get("seen");
- let current_seen_timestamp: u32 = current_seen_timestamp_object.duration_since(SystemTime::UNIX_EPOCH).unwrap().as_secs() as u32;
+ // way might be able to get away with not using this
+ (*current_channel_delta).requires_reminder = true;
- if current_seen_timestamp <= reminder_threshold_timestamp {
- // annotate this channel as requiring that reminders be sent to the client
- let current_channel_delta = delta_set.entry(scid as u64).or_insert(ChannelDelta::default());
-
- // way might be able to get away with not using this
- (*current_channel_delta).requires_reminder = true;
-
- if let Some(current_channel_info) = read_only_graph.channel(scid as u64) {
- if current_channel_info.one_to_two.is_none() || current_channel_info.two_to_one.is_none() {
- // we don't send reminders if we don't have bidirectional update data
- continue;
- }
-
- if let Some(info) = current_channel_info.one_to_two.as_ref() {
- let flags: u8 = if info.enabled { 0 } else { 2 };
- let current_update = (*current_channel_delta).updates.0.get_or_insert(DirectedUpdateDelta::default());
- current_update.serialization_update_flags = Some(flags);
- }
-
- if let Some(info) = current_channel_info.two_to_one.as_ref() {
- let flags: u8 = if info.enabled { 1 } else { 3 };
- let current_update = (*current_channel_delta).updates.1.get_or_insert(DirectedUpdateDelta::default());
- current_update.serialization_update_flags = Some(flags);
- }
- } else {
- // we don't send reminders if we don't have the channel
+ if let Some(current_channel_info) = network_graph.read_only().channel(scid as u64) {
+ if current_channel_info.one_to_two.is_none() || current_channel_info.two_to_one.is_none() {
+ // we don't send reminders if we don't have bidirectional update data
continue;
}
+
+ if let Some(info) = current_channel_info.one_to_two.as_ref() {
+ let flags: u8 = if info.enabled { 0 } else { 2 };
+ let current_update = (*current_channel_delta).updates.0.get_or_insert(DirectedUpdateDelta::default());
+ current_update.serialization_update_flags = Some(flags);
+ }
+
+ if let Some(info) = current_channel_info.two_to_one.as_ref() {
+ let flags: u8 = if info.enabled { 1 } else { 3 };
+ let current_update = (*current_channel_delta).updates.1.get_or_insert(DirectedUpdateDelta::default());
+ current_update.serialization_update_flags = Some(flags);
+ }
+ } else {
+ // we don't send reminders if we don't have the channel
+ continue;
}
}
}
}
-pub(super) async fn fetch_channel_updates(delta_set: &mut DeltaSet, client: &Client, last_sync_timestamp: u32, consider_intermediate_updates: bool) {
+pub(super) async fn fetch_channel_updates(delta_set: &mut DeltaSet, client: &Client, last_sync_timestamp: u32) {
let start = Instant::now();
let last_sync_timestamp_object = SystemTime::UNIX_EPOCH.add(Duration::from_secs(last_sync_timestamp as u64));
// get the latest channel update in each direction prior to last_sync_timestamp, provided
// there was an update in either direction that happened after the last sync (to avoid
// collecting too many reference updates)
- let reference_rows = client.query("SELECT DISTINCT ON (short_channel_id, direction) id, direction, blob_signed FROM channel_updates WHERE seen < $1 AND short_channel_id IN (SELECT short_channel_id FROM channel_updates WHERE seen >= $1 GROUP BY short_channel_id) ORDER BY short_channel_id ASC, direction ASC, seen DESC", &[&last_sync_timestamp_object]).await.unwrap();
+ let reference_rows = client.query_raw("
+ SELECT id, direction, blob_signed FROM channel_updates
+ WHERE id IN (
+ SELECT DISTINCT ON (short_channel_id, direction) id
+ FROM channel_updates
+ WHERE seen < $1 AND short_channel_id IN (
+ SELECT DISTINCT ON (short_channel_id) short_channel_id
+ FROM channel_updates
+ WHERE seen >= $1
+ )
+ ORDER BY short_channel_id ASC, direction ASC, seen DESC
+ )
+ ", [last_sync_timestamp_object]).await.unwrap();
+ let mut pinned_rows = Box::pin(reference_rows);
- println!("Fetched reference rows ({}): {:?}", reference_rows.len(), start.elapsed());
+ println!("Fetched reference rows in {:?}", start.elapsed());
- let mut last_seen_update_ids: Vec<i32> = Vec::with_capacity(reference_rows.len());
+ let mut last_seen_update_ids: Vec<i32> = Vec::new();
let mut non_intermediate_ids: HashSet<i32> = HashSet::new();
+ let mut reference_row_count = 0;
- for current_reference in reference_rows {
+ while let Some(row_res) = pinned_rows.next().await {
+ let current_reference = row_res.unwrap();
let update_id: i32 = current_reference.get("id");
last_seen_update_ids.push(update_id);
non_intermediate_ids.insert(update_id);
(*current_channel_delta).updates.1.get_or_insert(DirectedUpdateDelta::default())
};
update_delta.last_update_before_seen = Some(unsigned_channel_update);
+ reference_row_count += 1;
}
- println!("Processed reference rows (delta size: {}): {:?}", delta_set.len(), start.elapsed());
+ println!("Processed {} reference rows (delta size: {}) in {:?}",
+ reference_row_count, delta_set.len(), start.elapsed());
// get all the intermediate channel updates
// (to calculate the set of mutated fields for snapshotting, where intermediate updates may
// have been omitted)
- let mut intermediate_update_prefix = "";
- if !consider_intermediate_updates {
- intermediate_update_prefix = "DISTINCT ON (short_channel_id, direction)";
- }
-
- let query_string = format!("SELECT {} id, direction, blob_signed, seen FROM channel_updates WHERE seen >= $1 ORDER BY short_channel_id ASC, direction ASC, seen DESC", intermediate_update_prefix);
- let intermediate_updates = client.query(&query_string, &[&last_sync_timestamp_object]).await.unwrap();
- println!("Fetched intermediate rows ({}): {:?}", intermediate_updates.len(), start.elapsed());
+ let intermediate_updates = client.query_raw("
+ SELECT id, direction, blob_signed, seen
+ FROM channel_updates
+ WHERE seen >= $1
+ ", [last_sync_timestamp_object]).await.unwrap();
+ let mut pinned_updates = Box::pin(intermediate_updates);
+ println!("Fetched intermediate rows in {:?}", start.elapsed());
let mut previous_scid = u64::MAX;
let mut previously_seen_directions = (false, false);
// let mut previously_seen_directions = (false, false);
let mut intermediate_update_count = 0;
- for intermediate_update in intermediate_updates {
+ while let Some(row_res) = pinned_updates.next().await {
+ let intermediate_update = row_res.unwrap();
let update_id: i32 = intermediate_update.get("id");
if non_intermediate_ids.contains(&update_id) {
continue;
projects / rapid-gossip-sync-server / blobdiff