1 files changed, 72 insertions, 0 deletions
diff --git a/src/lib/dhcpsrv/parsers/multi_threading_config_parser.cc b/src/lib/dhcpsrv/parsers/multi_threading_config_parser.cc
new file mode 100644
index 0000000..1194618
--- /dev/null
+++ b/src/lib/dhcpsrv/parsers/multi_threading_config_parser.cc
@@ -0,0 +1,72 @@
+// Copyright (C) 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/srv_config.h>
+#include <dhcpsrv/parsers/multi_threading_config_parser.h>
+#include <util/multi_threading_mgr.h>
+
+using namespace isc::data;
+using namespace isc::util;
+
+namespace isc {
+namespace dhcp {
+
+void
+MultiThreadingConfigParser::parse(SrvConfig& srv_cfg,
+                                  const ConstElementPtr& value) {
+    if (!value) {
+        return;
+    }
+    if (value->getType() != Element::map) {
+        isc_throw(DhcpConfigError, "multi-threading is supposed to be a map");
+    }
+
+    // enable-multi-threading is mandatory
+    auto enabled = getBoolean(value, "enable-multi-threading");
+
+    // thread-pool-size is not mandatory
+    if (value->get("thread-pool-size")) {
+        auto thread_pool_size = getInteger(value, "thread-pool-size");
+        uint32_t max_size = std::numeric_limits<uint16_t>::max();
+        if (thread_pool_size < 0) {
+            isc_throw(DhcpConfigError,
+                      "thread pool size code must not be negative ("
+                      << getPosition("thread-pool-size", value) << ")");
+        }
+        if (thread_pool_size > max_size) {
+            isc_throw(DhcpConfigError, "invalid thread pool size '"
+                      << thread_pool_size << "', it must not be greater than '"
+                      << max_size << "' ("
+                      << getPosition("thread-pool-size", value) << ")");
+        }
+    }
+
+    // packet-queue-size is not mandatory
+    if (value->get("packet-queue-size")) {
+        auto packet_queue_size = getInteger(value, "packet-queue-size");
+        uint32_t max_size = std::numeric_limits<uint16_t>::max();
+        if (packet_queue_size < 0) {
+            isc_throw(DhcpConfigError,
+                      "packet queue size code must not be negative ("
+                      << getPosition("packet-queue-size", value) << ")");
+        }
+        if (packet_queue_size > max_size) {
+            isc_throw(DhcpConfigError, "invalid packet queue size '"
+                      << packet_queue_size << "', it must not be greater than '"
+                      << max_size << "' ("
+                      << getPosition("packet-queue-size", value) << ")");
+        }
+    }
+
+    srv_cfg.setDHCPMultiThreading(value);
+    MultiThreadingMgr::instance().setMode(enabled);
+}
+
+}  // namespace dhcp
+}  // namespace isc