LandmarkAgent

class LandmarkAgent : public Agent

Inheritance:

Public Fields
int adverts_type_: Option to indicate whether updates are to be flooded, unicast or suppressed when no changes occur as in a hard-state based scheme
int be_random_: Randomness/MAC/logging parameters set to 1 on initialization
int cache_: Tag cache info set to 1 to enable caching
int debug_: Debug flags
int global_lm_: Option to indicate whether there is a global LM. We dont need a global LM for all the query direction schemes
nsaddr_t global_lm_id_: ID and level of global LM that this node sees
int global_lm_level_
int highest_level_: My highest level in the hierarchy (note
PriQueue* ll_queue: link level output queue
compr_taglist* mobile_tags_: Pointer to tags that have moved within this sensor's range while the sensor was dead
double mobility_period_
int myaddr_: My address...
int* nbrs_
MobileNode* node_: Mobile node to which agent is attached; Used to get position information
int node_dead_: Indicates whether the node that the agent is attached to is alive or not
int num_cached_items_
int num_demotion_msgs_
int num_nbrs_
int num_resched_: used in rescheduling timers
ParentChildrenList* parent_children_list_: that a LM can be at multiple levels) List of parent and children nodes for each level I'm at. Methods to add and remove parent, child information from this list.
double promo_start_time_: Time when the promotion timer was started
double promo_timeout_: Promotion timeout. Same for all levels.
double promo_timeout_decr_: Amount by which promotion timer is
PromotionTimer* promo_timer_: Promotion timer stuff Promotion timer object
int promo_timer_running_: decr when another LM's adverts is heard indicates that promotion timer is running
int qry_debug_
RecentMsgRecord* recent_demotion_msgs_: Store a record of recent forwarded demotion msgs
RNG* rn_: Random number generator
int seqno_: Sequence number to advertise with...
Event* tag_advt_event_
TagAdvtHandler* tag_advt_handler_
TagCache* tag_cache_
tags_database* tag_dbase_: Pointer to global tag database
TagMobilityHandler* tag_mobility_: Tag mobility stuff
Event* tag_mobility_event_
RNG* tag_rng_
double total_wait_time_: other LM hierarchy messages total time the node has spent in wait state
Trace* tracetarget_: Trace target
double update_period_: Update period info
double update_timeout_
int wait_state_: used to indicate that the node is waiting to receive

Public Methods
virtual void AddMobileTag(void *mobile_tag)
void Addparent(const nsaddr_t parent, int level)
void Addpotentialchild(const nsaddr_t child, int level)
compr_taglist* aggregate_taginfo(compr_taglist *unagg_tags, int agg_level, int *num_tags)
compr_taglist* aggregate_tags(compr_taglist *unagg_tags, int agg_level, int *num_tags)
void assign_lmaddress(int64_t *lmaddr, int num_lm_addrs, int root_level): Assign landmark addresses to children
int CheckDemotionMsg(nsaddr_t id, int level, int origin_time)
virtual int command(int argc, const char * const * argv)
int compare_tag_lists(compr_taglist *tag_list1, int num_tags1, compr_taglist *tag_list2, int num_tags2)
virtual void ForwardPacket(Packet *p)
virtual void GenerateReHashMsg(int64_t lm_addr, double net_change_time)
void get_nbrinfo(): Prints neighbour information for this node
virtual nsaddr_t get_next_hop(nsaddr_t dst, int next_hop_level)
inline double jitter(double max, int be_random_)
LandmarkAgent()
virtual Packet* makeUpdate(ParentChildrenList *pcl, int pkt_type, int action): pkt_type is one of HIER_ADVS, OBJECT_ADVS, HIER_AND_OBJECT_ADVS action is one of DEMOTION, PERIODIC_ADVERTS, UNICAST_ADVERT_CHILD, UNICAST_ADVERT_PARENT, GLOBAL_ADVERT (from root LM) and QUERY_PKT
virtual void MoveTags()
virtual void periodic_callback(Event *e, int level): method to send periodic advts
virtual void ProcessHierUpdate(Packet *p)
int radius(int level): returns the LM radius for the specified level
inline double random_timer(double max, int be_random_)
void recv(Packet *p, Handler *)
NodeIDList* search_tag(int obj_name, int prev_hop_level, int next_hop_level, nsaddr_t last_hop_id, int *num_dst)
void SendChangedTagListUpdate(int our_tag_changed, int level)
void startUp(): Starts off the hierarchy construction protocol
virtual void stop(): Resets the agent state
void trace(char* fmt, ...): Tracing stuff

Private Fields
friend class LMPeriodicAdvtHandler
friend class ParentChildrenList
friend class PromotionTimer

Inherited from Agent:

Public Fields
Agent instvar agent_port_
Agent instvar dst_addr_
Agent instvar dst_port_
Agent instvar namTrace_
Agent instvar tg_

Public Methods
inline nsaddr_t& addr()
Agent instproc attach-app {s_type}
Agent instproc attach-source {s_type}
Agent instproc attach-tbf { tbf }
Agent instproc attach-trace { file }
virtual void attachApp(Application* app)
virtual void close()
Agent instproc connect d
virtual void connect(nsaddr_t dst)
inline nsaddr_t& daddr()
inline nsaddr_t& dport()
Agent instproc dst-port {}
Agent instproc init args
virtual void listen()
inline nsaddr_t& port()
Agent instproc port {}
void send(Packet* p, Handler* h)
virtual void send(int nbytes)
virtual void send(int sz, AppData *data)
virtual void sendmsg(int sz, AppData*, const char* flags = 0)
virtual void sendmsg(int nbytes, const char *flags = 0)
virtual void sendto(int sz, AppData*, const char* flags = 0)
virtual void sendto(int nbytes, const char* flags, nsaddr_t dst)
Agent instproc set args
void set_pkttype(packet_t pkttype)
virtual int& size()
virtual void timeout(int tno)
Agent instproc traffic-source agent

Protected Fields
Application* app_
Tcl_Channel channel_
int class_
int defttl_
ns_addr_t dst_
int fid_
int flags_
ns_addr_t here_
int off_ip_
OldValue* oldValueList_
int prio_
int size_
char* traceName_
packet_t type_
static int uidcnt_

Protected Methods
void addAgentTrace(const char *name)
Packet* allocpkt(int)
Packet* allocpkt()
virtual int delay_bind_dispatch(const char *varName, const char *localName, TclObject *tracer)
virtual void delay_bind_init_all()
void deleteAgentTrace()
void dumpTracedVars()
virtual void idle()
void initpkt(Packet*)
void insertOldValue(TracedVar *v, const char *value)
OldValue* lookupOldValue(TracedVar *v)
void monitorAgentTrace()
virtual void recvBytes(int bytes)

Private Methods
void flushAVar(TracedVar *v)

Inherited from Connector:

Public Methods
virtual void drop(Packet* p)
inline NsObject* target()

Protected Fields
NsObject* drop_
NsObject* target_

Protected Methods
virtual void drop(Packet* p, const char *s)

Inherited from NsObject:

Public Methods
virtual void debug(const char *fmt, ...)
int isdebug()

Protected Fields
int off_cmn_
int off_flags_

Protected Methods
void handle(Event*)
virtual void reset()

Inherited from Handler:

Documentation

friend class LMPeriodicAdvtHandler

friend class PromotionTimer

friend class ParentChildrenList

LandmarkAgent()

virtual int command(int argc, const char * const * argv)

PromotionTimer* promo_timer_

Promotion timer stuff Promotion timer object

double promo_start_time_

Time when the promotion timer was started

double promo_timeout_

Promotion timeout. Same for all levels.

double promo_timeout_decr_

Amount by which promotion timer is

int promo_timer_running_

decr when another LM's adverts is heard indicates that promotion timer is running

void startUp()

Starts off the hierarchy construction protocol

virtual void stop()

Resets the agent state

int seqno_

Sequence number to advertise with...

int myaddr_

My address...

virtual void periodic_callback(Event *e, int level)

method to send periodic advts

int highest_level_

My highest level in the hierarchy (note

ParentChildrenList* parent_children_list_

that a LM can be at multiple levels) List of parent and children nodes for each level I'm at. Methods to add and remove parent, child information from this list.

void Addparent(const nsaddr_t parent, int level)

void Addpotentialchild(const nsaddr_t child, int level)

virtual Packet* makeUpdate(ParentChildrenList *pcl, int pkt_type, int action)

pkt_type is one of HIER_ADVS, OBJECT_ADVS, HIER_AND_OBJECT_ADVS action is one of DEMOTION, PERIODIC_ADVERTS, UNICAST_ADVERT_CHILD, UNICAST_ADVERT_PARENT, GLOBAL_ADVERT (from root LM) and QUERY_PKT

int radius(int level)