Add a "max_size" parameter to diff_delta()

Anything that generates a delta to see if two objects are close usually
isn't interested in the delta ends up being bigger than some specified
size, and this allows us to stop delta generation early when that
happens.

1 files changed, 4 insertions, 2 deletions

diff --git a/test-delta.c b/test-delta.c
index 8751e27c6b..da51efc245 100644
--- a/test-delta.c
+++ b/test-delta.c
@@ -60,10 +60,12 @@ int main(int argc, char *argv[])
 
 	if (argv[1][1] == 'd')
 		out_buf = diff_delta(from_buf, from_size,
-				     data_buf, data_size, &out_size);
+				     data_buf, data_size,
+				     &out_size, ~0UL);
 	else
 		out_buf = patch_delta(from_buf, from_size,
-				      data_buf, data_size, &out_size);
+				      data_buf, data_size,
+				      &out_size);
 	if (!out_buf) {
 		fprintf(stderr, "delta operation failed (returned NULL)\n");
 		return 1;