From 7954c0c7ed98be314ce023ebd7ecee0e926bf0c1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C8=98tefan=20Talpalaru?= <stefantalpalaru@yahoo.com>
Date: Sun, 31 Mar 2019 22:38:21 +0200
Subject: [PATCH] release the memory a bit sooner

---
 eth/p2p/blockchain_sync.nim | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/eth/p2p/blockchain_sync.nim b/eth/p2p/blockchain_sync.nim
index 0f34d8c..706e761 100644
--- a/eth/p2p/blockchain_sync.nim
+++ b/eth/p2p/blockchain_sync.nim
@@ -55,8 +55,9 @@ proc availableWorkItem(ctx: SyncContext): int =
     else:
       discard
 
-    let eb = ctx.workQueue[i].endIndex
-    if eb > maxPendingBlock: maxPendingBlock = eb
+    let endBlock = ctx.workQueue[i].endIndex
+    if endBlock > maxPendingBlock:
+      maxPendingBlock = endBlock
 
   let nextRequestedBlock = maxPendingBlock + 1
   if nextRequestedBlock >= ctx.endBlockNumber:
@@ -79,8 +80,8 @@ proc persistWorkItem(ctx: SyncContext, wi: var WantedBlocks) =
   of ValidationResult.Error:
     wi.state = Initial
   # successful or not, we're done with these blocks
-  wi.headers.setLen(0)
-  wi.bodies.setLen(0)
+  wi.headers = @[]
+  wi.bodies = @[]
 
 proc persistPendingWorkItems(ctx: SyncContext) =
   var nextStartIndex = ctx.finalizedBlock + 1