From f86eb18a6e3a10ecb96497f0d2be91fb231e7520 Mon Sep 17 00:00:00 2001
From: Yeastplume <yeastplume@protonmail.com>
Date: Sat, 28 Sep 2019 17:24:40 +0100
Subject: [PATCH] Change tui tx_pool lock to try_read, only lock once (#3063)

---
 servers/src/grin/server.rs | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/servers/src/grin/server.rs b/servers/src/grin/server.rs
index 8e17573582..248ba546a4 100644
--- a/servers/src/grin/server.rs
+++ b/servers/src/grin/server.rs
@@ -475,9 +475,17 @@ impl Server {
 			.map(|p| PeerStats::from_peer(&p))
 			.collect();
 
+		let (tx_pool_size, stem_pool_size) = {
+			let tx_pool_lock = self.tx_pool.try_read();
+			match tx_pool_lock {
+				Some(l) => (l.txpool.entries.len(), l.stempool.entries.len()),
+				None => (0, 0),
+			}
+		};
+
 		let tx_stats = TxStats {
-			tx_pool_size: self.tx_pool.read().txpool.entries.len(),
-			stem_pool_size: self.tx_pool.read().stempool.entries.len(),
+			tx_pool_size,
+			stem_pool_size,
 		};
 
 		let head = self.chain.head_header()?;