#include <RecursiveLookup.h>
Public Member Functions | |
RecursiveLookup (BaseOverlay *overlay, RoutingType routingType, const RecursiveLookupConfiguration &config, bool appLookup) | |
virtual | ~RecursiveLookup () |
Virtual destructor. | |
virtual void | lookup (const OverlayKey &key, int numSiblings=1, int hopCountMax=0, int retries=0, LookupListener *listener=NULL) |
Lookup siblings for a key. | |
virtual const NodeVector & | getResult () const |
Returns the result of the lookup. | |
virtual bool | isValid () const |
Returns true, if the lookup was successful. | |
virtual void | abortLookup () |
Aborts a running lookup. | |
virtual uint32_t | getAccumulatedHops () const |
Returns the total number of hops for all lookup paths. | |
void | handleRpcTimeout (BaseCallMessage *msg, const TransportAddress &dest, cPolymorphic *context, int rpcId, const OverlayKey &destKey) |
This method is called if an RPC timeout has been reached. | |
void | handleRpcResponse (BaseResponseMessage *msg, cPolymorphic *context, int rpcId, simtime_t rtt) |
This method is called if an RPC response has been received. | |
Private Attributes | |
BaseOverlay * | overlay |
LookupListener * | listener |
uint32_t | nonce |
bool | valid |
NodeVector | siblings |
RoutingType | routingType |
int | redundantNodes |
int | numRetries |
bool | appLookup |
Definition at line 48 of file RecursiveLookup.h.
RecursiveLookup::RecursiveLookup | ( | BaseOverlay * | overlay, | |
RoutingType | routingType, | |||
const RecursiveLookupConfiguration & | config, | |||
bool | appLookup | |||
) |
Definition at line 31 of file RecursiveLookup.cc.
00035 : 00036 overlay(overlay), 00037 routingType(routingType), 00038 redundantNodes(config.redundantNodes), 00039 numRetries(config.numRetries), 00040 appLookup(appLookup) 00041 { 00042 valid = false; }
RecursiveLookup::~RecursiveLookup | ( | ) | [virtual] |
Virtual destructor.
Definition at line 44 of file RecursiveLookup.cc.
00045 { 00046 if (listener != NULL) { 00047 delete listener; 00048 listener = NULL; 00049 } 00050 00051 overlay->removeLookup(this); 00052 }
void RecursiveLookup::abortLookup | ( | ) | [virtual] |
Aborts a running lookup.
This method aborts a running lookup without calling the listener and delete the lookup object.
Implements AbstractLookup.
Definition at line 82 of file RecursiveLookup.cc.
00083 { 00084 overlay->cancelRpcMessage(nonce); 00085 00086 delete this; 00087 }
uint32_t RecursiveLookup::getAccumulatedHops | ( | ) | const [virtual] |
Returns the total number of hops for all lookup paths.
Implements AbstractLookup.
Definition at line 89 of file RecursiveLookup.cc.
const NodeVector & RecursiveLookup::getResult | ( | ) | const [virtual] |
Returns the result of the lookup.
Implements AbstractLookup.
Definition at line 72 of file RecursiveLookup.cc.
00073 { 00074 return siblings; 00075 }
void RecursiveLookup::handleRpcResponse | ( | BaseResponseMessage * | msg, | |
cPolymorphic * | context, | |||
int | rpcId, | |||
simtime_t | rtt | |||
) | [virtual] |
This method is called if an RPC response has been received.
msg | The response message. | |
context | Pointer to an optional state object. The object has to be handled/deleted by the handleRpcResponse() code | |
rpcId | The RPC id. | |
rtt | The Round-Trip-Time of this RPC |
Reimplemented from RpcListener.
Definition at line 112 of file RecursiveLookup.cc.
00115 { 00116 FindNodeResponse* findNodeResponse = check_and_cast<FindNodeResponse*>(msg); 00117 00118 if (findNodeResponse->getSiblings() && 00119 findNodeResponse->getClosestNodesArraySize() > 0) { 00120 valid = true; 00121 for (uint32_t i = 0; i < findNodeResponse->getClosestNodesArraySize(); 00122 i++) { 00123 siblings.push_back(findNodeResponse->getClosestNodes(i)); 00124 } 00125 } 00126 00127 // std::cout << "RecursiveLookup::handleRpcResponse() " 00128 // << findNodeResponse->getClosestNodesArraySize() << std::endl; 00129 00130 // inform listener 00131 if (listener != NULL) { 00132 listener->lookupFinished(this); 00133 listener = NULL; 00134 } 00135 delete this; 00136 }
void RecursiveLookup::handleRpcTimeout | ( | BaseCallMessage * | msg, | |
const TransportAddress & | dest, | |||
cPolymorphic * | context, | |||
int | rpcId, | |||
const OverlayKey & | destKey | |||
) | [virtual] |
This method is called if an RPC timeout has been reached.
msg | The original RPC message. | |
dest | The destination node | |
context | Pointer to an optional state object. The object has to be handled/deleted by the handleRpcResponse() code | |
rpcId | The RPC id. | |
destKey | the destination OverlayKey |
Reimplemented from RpcListener.
Definition at line 95 of file RecursiveLookup.cc.
00099 { 00100 //TODO retry 00101 valid = false; 00102 00103 // inform listener 00104 if (listener != NULL) { 00105 listener->lookupFinished(this); 00106 listener = NULL; 00107 } 00108 00109 delete this; 00110 }
bool RecursiveLookup::isValid | ( | ) | const [virtual] |
Returns true, if the lookup was successful.
Implements AbstractLookup.
Definition at line 77 of file RecursiveLookup.cc.
00078 { 00079 return valid; 00080 }
void RecursiveLookup::lookup | ( | const OverlayKey & | key, | |
int | numSiblings = 1 , |
|||
int | hopCountMax = 0 , |
|||
int | retries = 0 , |
|||
LookupListener * | listener = NULL | |||
) | [virtual] |
Lookup siblings for a key.
key | The key to lookup | |
numSiblings | Number of siblings to lookup | |
hopCountMax | Maximum hop count | |
retries | Number of retries if lookup fails | |
listener | Listener to inform, when the lookup is done |
Implements AbstractLookup.
Definition at line 54 of file RecursiveLookup.cc.
00057 { 00058 this->listener = listener; 00059 00060 FindNodeCall* call = new FindNodeCall("FindNodeCall"); 00061 if (appLookup) call->setStatType(APP_LOOKUP_STAT); 00062 else call->setStatType(MAINTENANCE_STAT); 00063 call->setLookupKey(key); 00064 call->setNumRedundantNodes(redundantNodes); 00065 call->setNumSiblings(numSiblings); 00066 call->setBitLength(FINDNODECALL_L(call)); 00067 00068 nonce = overlay->sendRouteRpcCall(OVERLAY_COMP, key, call, NULL, 00069 routingType, -1, retries, -1, this); 00070 }
bool RecursiveLookup::appLookup [private] |
Definition at line 110 of file RecursiveLookup.h.
Referenced by lookup().
LookupListener* RecursiveLookup::listener [private] |
Definition at line 103 of file RecursiveLookup.h.
Referenced by handleRpcResponse(), handleRpcTimeout(), and ~RecursiveLookup().
uint32_t RecursiveLookup::nonce [private] |
Definition at line 104 of file RecursiveLookup.h.
Referenced by abortLookup(), and lookup().
int RecursiveLookup::numRetries [private] |
Definition at line 109 of file RecursiveLookup.h.
BaseOverlay* RecursiveLookup::overlay [private] |
Definition at line 102 of file RecursiveLookup.h.
Referenced by abortLookup(), lookup(), and ~RecursiveLookup().
int RecursiveLookup::redundantNodes [private] |
Definition at line 108 of file RecursiveLookup.h.
Referenced by lookup().
RoutingType RecursiveLookup::routingType [private] |
Definition at line 107 of file RecursiveLookup.h.
Referenced by lookup().
NodeVector RecursiveLookup::siblings [private] |
Definition at line 106 of file RecursiveLookup.h.
Referenced by getResult(), and handleRpcResponse().
bool RecursiveLookup::valid [private] |
Definition at line 105 of file RecursiveLookup.h.
Referenced by handleRpcResponse(), handleRpcTimeout(), isValid(), and RecursiveLookup().