From a1b39732d7a76c93386d948a404f3f917835a887 Mon Sep 17 00:00:00 2001
From: David Galeano <davidgaleano@turbulenz.biz>
Date: Thu, 10 Jan 2013 10:06:38 +0800
Subject: [PATCH] Avoid checking choked pipe if no extension has more data to
 write.

---
 lib/parsers.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/lib/parsers.c b/lib/parsers.c
index 0f4c2c7a..a61c0e20 100644
--- a/lib/parsers.c
+++ b/lib/parsers.c
@@ -1560,6 +1560,11 @@ lws_issue_raw_ext_access(struct libwebsocket *wsi,
 
 		debug("written %d bytes to client\n", eff_buf.token_len);
 
+		/* no extension has more to spill */
+
+		if (!ret)
+			break;
+
 		/* we used up what we had */
 
 		eff_buf.token = NULL;