Add warning if the number of peaks is huge

1 files changed, 5 insertions, 0 deletions

diff --git a/libcrystfel/src/index.c b/libcrystfel/src/index.c
index 07f563b7..c3f7c35d 100644
--- a/libcrystfel/src/index.c
+++ b/libcrystfel/src/index.c
@@ -248,6 +248,11 @@ void index_pattern(struct image *image,
 
 	if ( indms == NULL ) return;
 
+	if ( image_feature_count(image->features) > 10000 ) {
+		STATUS("WARNING: The number of peaks is very large for '%s'.\n",
+		       image->filename);
+	}
+
 	map_all_peaks(image);
 	image->crystals = NULL;
 	image->n_crystals = 0;