From: Tatsuhiro Tsujikawa <tatsuhiro.t@gmail.com>
Date: Sat, 13 Sep 2014 02:59:23 +0000 (+0900)
Subject: http2: Fix busy loop when EOF is encountered
X-Git-Tag: curl-7_39_0~220
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=7d9bef9286cd8efbed032d41a36e82d1c44058a7;p=thirdparty%2Fcurl.git

http2: Fix busy loop when EOF is encountered

Previously we did not handle EOF from underlying transport socket and
wrongly just returned error code CURL_AGAIN from http2_recv, which
caused busy loop since socket has been closed.  This patch adds the
code to handle EOF situation and tells the upper layer that we got
EOF.
---

diff --git a/lib/http2.c b/lib/http2.c
index 604514d71c..f86d3ebff1 100644
--- a/lib/http2.c
+++ b/lib/http2.c
@@ -744,6 +744,12 @@ static ssize_t http2_recv(struct connectdata *conn, int sockindex,
   }
 
   infof(conn->data, "nread=%zd\n", nread);
+
+  if(nread == 0) {
+    failf(conn->data, "EOF");
+    return 0;
+  }
+
   rv = nghttp2_session_mem_recv(httpc->h2,
                                 (const uint8_t *)httpc->inbuf, nread);