Revert commit 0bc2fe6fe7.

Connection moved to the end of timeout list in resume_suspended_connections(),
moreover suspended connections are not in DL-list (XDLL_remove may break something) and
timeout DL-list is not maintained in thread-per-connection mode

No need to use 'just_resumed': if connection is suspended again in first DH function,
MHD_connection_update_event_loop_info will be called with 'suspended' flag set.

src/microhttpd/connection.c

@@ -1415,11 +1415,10 @@ MHD_connection_update_event_loop_info (struct MHD_Connection *connection)
         case MHD_CONNECTION_CONTINUE_SENT:
           if (connection->read_buffer_offset == connection->read_buffer_size)
             {
-              if ( (MHD_YES != try_grow_read_buffer (connection)) &&
-		   (0 != (connection->daemon->options &
-			  MHD_USE_INTERNAL_POLLING_THREAD)) &&
-		   (! connection->suspended) &&
-		   (! connection->just_resumed) )
+              if ((MHD_YES != try_grow_read_buffer (connection)) &&
+                  (0 != (connection->daemon->options &
+                         MHD_USE_INTERNAL_POLLING_THREAD)) &&
+                  (! connection->suspended))
                 {
                   /* failed to grow the read buffer, and the
                      client which is supposed to handle the
@@ -1823,7 +1822,6 @@ call_connection_handler (struct MHD_Connection *connection)
     return;                     /* already queued a response */
   processed = 0;
   connection->client_aware = true;
-  connection->just_resumed = false;	
   if (MHD_NO ==
       connection->daemon->default_handler (connection->daemon-> default_handler_cls,
 					   connection,
@@ -1986,7 +1984,6 @@ process_request_body (struct MHD_Connection *connection)
         }
       used = processed;
       connection->client_aware = true;
-      connection->just_resumed = false;
       if (MHD_NO ==
           connection->daemon->default_handler (connection->daemon->default_handler_cls,
                                                connection,

src/microhttpd/daemon.c

@@ -2799,18 +2799,7 @@ MHD_resume_connection (struct MHD_Connection *connection)
     MHD_PANIC (_("Cannot resume connections without enabling MHD_ALLOW_SUSPEND_RESUME!\n"));
   MHD_mutex_lock_chk_ (&daemon->cleanup_connection_mutex);
   connection->resuming = true;
-  connection->just_resumed = true;
   daemon->resuming = true;
-  if (connection->connection_timeout == daemon->connection_timeout)
-  {
-    /* move to the end... */
-    XDLL_remove (daemon->normal_timeout_head,
-		 daemon->normal_timeout_tail,
-		 connection);
-    XDLL_insert (daemon->normal_timeout_head,
-		 daemon->normal_timeout_tail,
-		 connection);
-  }
   MHD_mutex_unlock_chk_ (&daemon->cleanup_connection_mutex);
   if ( (MHD_ITC_IS_VALID_(daemon->itc)) &&
        (! MHD_itc_activate_ (daemon->itc, "r")) )

src/microhttpd/internal.h

@@ -947,12 +947,6 @@ struct MHD_Connection
    * Is the connection wanting to resume?
    */
   bool resuming;
-  
-  /**
-   * Did the connection just resume? (Means we are generous
-   * in dealing with a full read buffer...).
-   */
-  bool just_resumed;
 };