1 files changed, 141 insertions, 0 deletions
diff --git a/src/lib/dhcpsrv/cfg_expiration.cc b/src/lib/dhcpsrv/cfg_expiration.cc
new file mode 100644
index 0000000..2931740
--- /dev/null
+++ b/src/lib/dhcpsrv/cfg_expiration.cc
@@ -0,0 +1,141 @@
+// Copyright (C) 2015,2017 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 <dhcpsrv/cfg_expiration.h>
+#include <exceptions/exceptions.h>
+#include <limits>
+
+using namespace isc::data;
+
+namespace isc {
+namespace dhcp {
+
+// Default values
+const uint16_t CfgExpiration::DEFAULT_RECLAIM_TIMER_WAIT_TIME = 10;
+const uint16_t CfgExpiration::DEFAULT_FLUSH_RECLAIMED_TIMER_WAIT_TIME = 25;
+const uint32_t CfgExpiration::DEFAULT_HOLD_RECLAIMED_TIME = 3600;
+const uint32_t CfgExpiration::DEFAULT_MAX_RECLAIM_LEASES = 100;
+const uint16_t CfgExpiration::DEFAULT_MAX_RECLAIM_TIME = 250;
+const uint16_t CfgExpiration::DEFAULT_UNWARNED_RECLAIM_CYCLES = 5;
+
+// Maximum values.
+const uint16_t CfgExpiration::LIMIT_RECLAIM_TIMER_WAIT_TIME =
+    std::numeric_limits<uint16_t>::max();
+const uint16_t CfgExpiration::LIMIT_FLUSH_RECLAIMED_TIMER_WAIT_TIME =
+    std::numeric_limits<uint16_t>::max();
+const uint32_t CfgExpiration::LIMIT_HOLD_RECLAIMED_TIME =
+    std::numeric_limits<uint32_t>::max();
+const uint32_t CfgExpiration::LIMIT_MAX_RECLAIM_LEASES =
+    std::numeric_limits<uint32_t>::max();
+const uint16_t CfgExpiration::LIMIT_MAX_RECLAIM_TIME = 10000;
+const uint16_t CfgExpiration::LIMIT_UNWARNED_RECLAIM_CYCLES =
+    std::numeric_limits<uint16_t>::max();
+
+// Timers' names
+const std::string CfgExpiration::RECLAIM_EXPIRED_TIMER_NAME =
+    "reclaim-expired-leases";
+
+const std::string CfgExpiration::FLUSH_RECLAIMED_TIMER_NAME =
+    "flush-reclaimed-leases";
+
+CfgExpiration::CfgExpiration(const bool test_mode)
+    : reclaim_timer_wait_time_(DEFAULT_RECLAIM_TIMER_WAIT_TIME),
+      flush_reclaimed_timer_wait_time_(DEFAULT_FLUSH_RECLAIMED_TIMER_WAIT_TIME),
+      hold_reclaimed_time_(DEFAULT_HOLD_RECLAIMED_TIME),
+      max_reclaim_leases_(DEFAULT_MAX_RECLAIM_LEASES),
+      max_reclaim_time_(DEFAULT_MAX_RECLAIM_TIME),
+      unwarned_reclaim_cycles_(DEFAULT_UNWARNED_RECLAIM_CYCLES),
+      timer_mgr_(TimerMgr::instance()),
+      test_mode_(test_mode) {
+}
+
+void
+CfgExpiration::setReclaimTimerWaitTime(const int64_t reclaim_timer_wait_time) {
+    rangeCheck(reclaim_timer_wait_time, LIMIT_RECLAIM_TIMER_WAIT_TIME,
+               "reclaim-timer-wait-time");
+    reclaim_timer_wait_time_ = reclaim_timer_wait_time;
+}
+
+void
+CfgExpiration::setFlushReclaimedTimerWaitTime(const int64_t flush_reclaimed_wait_time) {
+    rangeCheck(flush_reclaimed_wait_time, LIMIT_FLUSH_RECLAIMED_TIMER_WAIT_TIME,
+               "flush-reclaimed-timer-wait-time");
+    flush_reclaimed_timer_wait_time_ = flush_reclaimed_wait_time;
+}
+
+void
+CfgExpiration::setHoldReclaimedTime(const int64_t hold_reclaimed_time) {
+    rangeCheck(hold_reclaimed_time, LIMIT_HOLD_RECLAIMED_TIME, "hold-reclaimed-time");
+    hold_reclaimed_time_ = hold_reclaimed_time;
+}
+
+void
+CfgExpiration::setMaxReclaimLeases(const int64_t max_reclaim_leases) {
+    rangeCheck(max_reclaim_leases, LIMIT_MAX_RECLAIM_LEASES, "max-reclaim-leases");
+    max_reclaim_leases_ = max_reclaim_leases;
+}
+
+void
+CfgExpiration::setMaxReclaimTime(const int64_t max_reclaim_time) {
+    rangeCheck(max_reclaim_time, LIMIT_MAX_RECLAIM_TIME, "max-reclaim-time");
+    max_reclaim_time_ = max_reclaim_time;
+}
+
+void
+CfgExpiration::setUnwarnedReclaimCycles(const int64_t unwarned_reclaim_cycles) {
+    rangeCheck(unwarned_reclaim_cycles, LIMIT_UNWARNED_RECLAIM_CYCLES,
+               "unwarned-reclaim-cycles");
+    unwarned_reclaim_cycles_ = unwarned_reclaim_cycles;
+}
+
+void
+CfgExpiration::rangeCheck(const int64_t value, const uint64_t max_value,
+                          const std::string& config_parameter_name) const {
+    if (value < 0) {
+        isc_throw(OutOfRange, "value for configuration parameter '"
+                  << config_parameter_name << "' must not be negative");
+
+    } else if (value > max_value) {
+        isc_throw(OutOfRange, "out range value '" << value << "' for configuration"
+                  " parameter '" << config_parameter_name << "', expected maximum"
+                  " value of '" << max_value << "'");
+    }
+}
+
+ElementPtr
+CfgExpiration::toElement() const {
+    ElementPtr result = Element::createMap();
+    // Set reclaim-timer-wait-time
+    result->set("reclaim-timer-wait-time",
+                Element::create(static_cast<long long>
+                                (reclaim_timer_wait_time_)));
+    // Set flush-reclaimed-timer-wait-time
+    result->set("flush-reclaimed-timer-wait-time",
+                Element::create(static_cast<long long>
+                                (flush_reclaimed_timer_wait_time_)));
+    // Set hold-reclaimed-time
+    result->set("hold-reclaimed-time",
+                Element::create(static_cast<long long>
+                                (hold_reclaimed_time_)));
+    // Set max-reclaim-leases
+    result->set("max-reclaim-leases",
+                Element::create(static_cast<long long>
+                                (max_reclaim_leases_)));
+    // Set max-reclaim-time
+    result->set("max-reclaim-time",
+                Element::create(static_cast<long long>
+                                (max_reclaim_time_)));
+    // Set unwarned-reclaim-cycles
+    result->set("unwarned-reclaim-cycles",
+                Element::create(static_cast<long long>
+                                (unwarned_reclaim_cycles_)));
+    return (result);
+}
+
+}
+}