From a48e2e0cb2bdc75e14dfde199dbca0a779b1316b Mon Sep 17 00:00:00 2001
From: Alex Auvolat <alex@adnab.me>
Date: Tue, 10 Jan 2023 10:30:59 +0100
Subject: K2V: Subscription to ranges of items

---
 src/model/k2v/poll.rs | 50 --------------------------------------------------
 1 file changed, 50 deletions(-)
 delete mode 100644 src/model/k2v/poll.rs

(limited to 'src/model/k2v/poll.rs')

diff --git a/src/model/k2v/poll.rs b/src/model/k2v/poll.rs
deleted file mode 100644
index 93105207..00000000
--- a/src/model/k2v/poll.rs
+++ /dev/null
@@ -1,50 +0,0 @@
-use std::collections::HashMap;
-use std::sync::Mutex;
-
-use serde::{Deserialize, Serialize};
-use tokio::sync::broadcast;
-
-use crate::k2v::item_table::*;
-
-#[derive(Debug, Hash, Clone, PartialEq, Eq, Serialize, Deserialize)]
-pub struct PollKey {
-	pub partition: K2VItemPartition,
-	pub sort_key: String,
-}
-
-#[derive(Default)]
-pub struct SubscriptionManager {
-	subscriptions: Mutex<HashMap<PollKey, broadcast::Sender<K2VItem>>>,
-}
-
-impl SubscriptionManager {
-	pub fn new() -> Self {
-		Self::default()
-	}
-
-	pub fn subscribe(&self, key: &PollKey) -> broadcast::Receiver<K2VItem> {
-		let mut subs = self.subscriptions.lock().unwrap();
-		if let Some(s) = subs.get(key) {
-			s.subscribe()
-		} else {
-			let (tx, rx) = broadcast::channel(8);
-			subs.insert(key.clone(), tx);
-			rx
-		}
-	}
-
-	pub fn notify(&self, item: &K2VItem) {
-		let key = PollKey {
-			partition: item.partition.clone(),
-			sort_key: item.sort_key.clone(),
-		};
-		let mut subs = self.subscriptions.lock().unwrap();
-		if let Some(s) = subs.get(&key) {
-			if s.send(item.clone()).is_err() {
-				// no more subscribers, remove channel from here
-				// (we will re-create it later if we need to subscribe again)
-				subs.remove(&key);
-			}
-		}
-	}
-}
-- 
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