From 1ccfbef4e7bbccaa0e666f48afc83f235b07a5b9 Mon Sep 17 00:00:00 2001
From: Rusty Russell <rusty@rustcorp.com.au>
Date: Thu, 18 Apr 2019 16:05:09 +0930
Subject: [PATCH] tools/bench-gossipd.sh: make sure we wait for gossipd to
 startup sync.

It can take a while if bitcoind has the regtest chain, and grossly
distorts our benchmarks!

Reported-by: Joe Netti <jnetti@blockstream.io>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
 tools/bench-gossipd.sh | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/bench-gossipd.sh b/tools/bench-gossipd.sh
index c37bd2b23..cf1d3461c 100755
--- a/tools/bench-gossipd.sh
+++ b/tools/bench-gossipd.sh
@@ -23,6 +23,8 @@ wait_for_start()
 	    exit 1
 	fi
     done
+    # Wait for it to catch up with bitcoind.
+    while [ "$($LCLI1 -H getinfo 2>/dev/null | grep '^blockheight=' | cut -d= -f2)" != "$(bitcoin-cli -regtest getblockcount)" ]; do sleep 1; done
     echo "$ID"
 }