leaderboard

1 files changed, 9 insertions, 2 deletions

diff --git a/src/state.rs b/src/state.rs
index 9ad2f9a..48e208f 100644
--- a/src/state.rs
+++ b/src/state.rs
@@ -1,5 +1,5 @@
 use anyhow::{bail, Context};
-use log::error;
+use log::{error, info};
 use redb::{Database, ReadableTable, TableDefinition};
 use rocket::tokio::{
     sync::mpsc::{self, Receiver, Sender},
@@ -102,7 +102,7 @@ impl Logic {
             }
         }
 
-        d.sort_by_key(|(_, _, w)| OrdAnyway(*w));
+        d.sort_by_key(|(_, _, w)| OrdAnyway(-*w));
         while d.len() > 16 {
             d.pop();
         }
@@ -112,6 +112,7 @@ impl Logic {
 
     async fn commit_db(&self, mut rx: Receiver<ImpressionEvent>) -> anyhow::Result<()> {
         let mut deadline = None;
+        let mut clear_deadline = Instant::now();
         let mut impressions_by_addr = vec![0u16; self.config.bloom_filter_size];
         let mut imp_raw = HashMap::<String, u64>::new();
         let mut imp_weighted = HashMap::<String, f64>::new();
@@ -130,6 +131,11 @@ impl Logic {
                         adid,
                         address_hash,
                     })) => {
+                        if Instant::now() >= clear_deadline {
+                            info!("bloom filter cleared");
+                            impressions_by_addr.iter_mut().for_each(|e| *e = 0);
+                            clear_deadline = Instant::now() + Duration::from_days(1);
+                        }
                         let num_impressions = {
                             let ind = (address_hash % impressions_by_addr.len() as u64) as usize;
                             impressions_by_addr[ind] = impressions_by_addr[ind].saturating_add(1);
@@ -150,6 +156,7 @@ impl Logic {
                 }
             }
 
+            info!("commit");
             let txn = self.database.begin_write().context("database failure")?;
             {
                 let mut raw = txn.open_table(T_TOTAL)?;