1 files changed, 59 insertions, 0 deletions
diff --git a/src/lib/dhcpsrv/parsers/dhcp_queue_control_parser.cc b/src/lib/dhcpsrv/parsers/dhcp_queue_control_parser.cc
new file mode 100644
index 0000000..a07e1e2
--- /dev/null
+++ b/src/lib/dhcpsrv/parsers/dhcp_queue_control_parser.cc
@@ -0,0 +1,59 @@
+// Copyright (C) 2015-2020 Internet Systems Consortium, Inc. ("ISC")
+//
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this
+// file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+#include <config.h>
+#include <cc/data.h>
+#include <dhcpsrv/cfgmgr.h>
+#include <dhcpsrv/dhcpsrv_log.h>
+#include <dhcpsrv/parsers/dhcp_queue_control_parser.h>
+#include <util/multi_threading_mgr.h>
+#include <boost/foreach.hpp>
+#include <string>
+#include <sys/types.h>
+
+using namespace isc::data;
+using namespace isc::util;
+
+namespace isc {
+namespace dhcp {
+
+ElementPtr
+DHCPQueueControlParser::parse(const ConstElementPtr& control_elem) {
+    // All we really do here is verify that it is a map that
+    // contains at least queue-type.  All other content depends
+    // on the packet queue implementation of that type.
+    if (control_elem->getType() != Element::map) {
+        isc_throw(DhcpConfigError, "dhcp-queue-control must be a map");
+    }
+
+    // enable-queue is mandatory.
+    bool enable_queue = getBoolean(control_elem, "enable-queue");
+
+    if (enable_queue) {
+        ConstElementPtr elem  = control_elem->get("queue-type");
+        if (!elem) {
+            isc_throw(DhcpConfigError, "when queue is enabled, queue-type is required");
+        } else {
+            if (elem->getType() != Element::string) {
+                isc_throw(DhcpConfigError, "queue-type must be a string");
+            }
+        }
+    }
+
+    // Return a copy of it.
+    ElementPtr result = data::copy(control_elem);
+
+    // Currently not compatible with multi-threading.
+    if (MultiThreadingMgr::instance().getMode()) {
+        // Silently disable it.
+        result->set("enable-queue", Element::create(false));
+    }
+
+    return (result);
+}
+
+} // end of namespace isc::dhcp
+} // end of namespace isc