From 1617f04e88d3fc0609a336726cfb726f07b93778 Mon Sep 17 00:00:00 2001
From: Thomas Bonfort <thomas.bonfort@airbus.com>
Date: Mon, 15 Nov 2021 12:38:13 +0100
Subject: [PATCH] avoid goroutine leak when creating bigtiff cogs

---
 cog.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/cog.go b/cog.go
index 746c96c..8a2fcbe 100644
--- a/cog.go
+++ b/cog.go
@@ -473,6 +473,11 @@ func (cog *cog) computeImageryOffsets() error {
 			} else {
 				if dataOffset > uint64(^uint32(0)) { //^uint32(0) is max uint32
 					//rerun with bigtiff support
+
+					//first empty out the tiles channel to avoid a goroutine leak
+					for range tiles {
+						//skip
+					}
 					cog.bigtiff = true
 					return cog.computeImageryOffsets()
 				}