From afb221c32aeeb2731e3b5362cc4ff8949d34edea Mon Sep 17 00:00:00 2001
From: "Evgeny Grin (Karlson2k)" <k2k@narod.ru>
Date: Wed, 15 Mar 2017 21:34:59 +0300
Subject: [PATCH] Improved thread-safety with suspended connections.

---
 src/microhttpd/connection.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/microhttpd/connection.c b/src/microhttpd/connection.c
index 0d55fb3c..40182c4e 100644
--- a/src/microhttpd/connection.c
+++ b/src/microhttpd/connection.c
@@ -2404,7 +2404,8 @@ int
 MHD_connection_handle_read (struct MHD_Connection *connection)
 {
   update_last_activity (connection);
-  if (MHD_CONNECTION_CLOSED == connection->state)
+  if ( (MHD_CONNECTION_CLOSED == connection->state) ||
+       (connection->suspended) )
     return MHD_YES;
   /* make sure "read" has a reasonable number of bytes
      in buffer to use per system call (if possible) */
@@ -2474,6 +2475,8 @@ MHD_connection_handle_write (struct MHD_Connection *connection)
 {
   struct MHD_Response *response;
   ssize_t ret;
+  if (connection->suspended)
+    return MHD_YES;
 
   update_last_activity (connection);
   while (1)