--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/servlib/prophet/Params.h Thu Apr 21 14:57:45 2011 +0100
@@ -0,0 +1,122 @@
+/*
+ * Copyright 2007 Baylor University
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _PROPHET_PARAMS_H_
+#define _PROPHET_PARAMS_H_
+
+#include <sys/types.h>
+#include "Node.h"
+#include "FwdStrategy.h"
+#include "QueuePolicy.h"
+
+namespace prophet
+{
+
+/**
+ * Tunable parameter struct for setting global default values
+ * for various Prophet algorithms
+ */
+class ProphetParams : public NodeParams
+{
+public:
+ /**
+ * Time between HELLO beacons (in 100ms units)
+ */
+ static const u_int8_t HELLO_INTERVAL = 20; ///< 2 sec (arbitrary)
+
+ /**
+ * Max units of HELLO_INTERVAL before peer is considered unreachable
+ */
+ static const u_int HELLO_DEAD = 20; ///< 40 sec (arbitrary)
+
+ /**
+ * Max times to forward a bundle for GTMX
+ */
+ static const u_int DEFAULT_NUM_F_MAX = 5; ///< arbitrary
+
+ /**
+ * Min times to forward a bundle for LEPR
+ */
+ static const u_int DEFAULT_NUM_F_MIN = 3; ///< arbitrary
+
+ /**
+ * Seconds between aging of nodes and Prophet ACKs
+ */
+ static const u_int AGE_PERIOD = 180; ///< 3 min (arbitrary)
+
+ /**
+ * Current version of the protocol
+ */
+ static const u_int8_t PROPHET_VERSION = 0x01;
+
+ /**
+ * Maximum number of routes to retain (not specified by I-D)
+ */
+ static const u_int MAX_TABLE_SIZE = 1024;
+
+ /**
+ * Constructor. Default values are defined in Prophet.h
+ */
+ ProphetParams()
+ : NodeParams(),
+ fs_(FwdStrategy::GRTR),
+ qp_(QueuePolicy::FIFO),
+ hello_interval_(HELLO_INTERVAL),
+ hello_dead_(HELLO_DEAD),
+ max_forward_(DEFAULT_NUM_F_MAX),
+ min_forward_(DEFAULT_NUM_F_MIN),
+ age_period_(AGE_PERIOD),
+ max_table_size_(MAX_TABLE_SIZE),
+ epsilon_(0.0039), // min value using 1/255
+ relay_node_(true),
+ internet_gw_(false) // not implemented
+ {}
+
+ ///@{ Accessors
+ FwdStrategy::fwd_strategy_t fs() const { return fs_; }
+ QueuePolicy::q_policy_t qp() const { return qp_; }
+ u_int8_t hello_interval() const { return hello_interval_; }
+ u_int hello_dead() const { return hello_dead_; }
+ u_int max_forward() const { return max_forward_; }
+ u_int min_forward() const { return min_forward_; }
+ u_int age_period() const { return age_period_; }
+ double epsilon() const { return epsilon_; }
+ bool relay_node() const { return relay_node_; }
+ bool internet_gw() const { return internet_gw_; }
+ ///@}
+
+ FwdStrategy::fwd_strategy_t fs_; ///< bundle forwarding strategy
+ QueuePolicy::q_policy_t qp_; ///< bundle queuing policy
+
+ u_int8_t hello_interval_; ///< delay between HELLO beacons (100ms units)
+ u_int hello_dead_; ///< hello_interval's before giving up on peer
+
+ u_int max_forward_; ///< max times to forward bundle using GTMX
+ u_int min_forward_; ///< min times to forward bundle before LEPR drops
+
+ u_int age_period_; ///< seconds between applying age algorithm
+
+ u_int max_table_size_; ///< max number of routes to retain
+
+ double epsilon_; ///< minimum predictability before dropping route
+
+ bool relay_node_; ///< whether this node accepts bundles to relay to peers
+ bool internet_gw_; ///< not implemented; whether node bridges to Internet
+};
+
+}; // namespace prophet
+
+#endif // _PROPHET_PARAMS_H_