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// 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,
bool multi_threading_enabled) {
// 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 (multi_threading_enabled) {
// Silently disable it.
result->set("enable-queue", Element::create(false));
LOG_WARN(dhcpsrv_logger, DHCPSRV_MT_DISABLED_QUEUE_CONTROL);
}
return (result);
}
} // end of namespace isc::dhcp
} // end of namespace isc
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