1 files changed, 4 insertions, 0 deletions
diff --git a/lib/urldata.h b/lib/urldata.h
index db8b1e732..25fb98fe5 100644
--- a/lib/urldata.h
+++ b/lib/urldata.h
@@ -1309,6 +1309,10 @@ struct UrlState {
 
   curl_off_t infilesize; /* size of file to upload, -1 means unknown.
                             Copied from set.filesize at start of operation */
+
+  int drain; /* Increased when this stream has data to read, even if its
+                socket not necessarily is readable. Decreased when
+                checked. */
 };