bool MP1Node::recvJoinReq(void *env, char *data, int size) {
if (size < (int)(sizeof(memberNode->addr.addr) + sizeof(long))) {
#ifdef DEBUGLOG
log->LOG(&memberNode->addr, "Message JOINREQ received with size wrong. Ignored.");
#endif
return false;
}
Address joinaddr;
long heartbeat;
memcpy(joinaddr.addr, data, sizeof(memberNode->addr.addr));
memcpy(&heartbeat, data + sizeof(memberNode->addr.addr), sizeof(long));
//#ifdef DEBUGLOG
// log->LOG(&memberNode->addr, "JOINREQ received from: %s heartbeat: %li", joinaddr.getAddress().c_str(), heartbeat);
//#endif
int id = *(int*)(&joinaddr.addr);
int port = *(short*)(&joinaddr.addr[4]);
updateMember(id, port, heartbeat);
sendMemberList("JOINREP", JOINREP, &joinaddr);
return true;
}
/**
* FUNCTION NAME: recvCallBack
*
* DESCRIPTION: Message handler for different message types
*/
bool MP1Node::recvCallBack(void *env, char *data, int size ) {
/*
* Your code goes here
*/
#pragma pack(push,1)
MessageHdr *mType = reinterpret_cast<MessageHdr*>(data);
switch (mType->msgType) {
case JOINREQ:
{
Address* fromAddr = reinterpret_cast<Address*>(mType + 1);
long* heartbeat = reinterpret_cast<long*>(fromAddr + 1);
MemberListEntry* newNode =
new MemberListEntry(AddrUtils::getID(*fromAddr), AddrUtils::getPort(*fromAddr),
*heartbeat, par->getcurrtime());
memberNode->memberList.push_back(*newNode);
#ifdef DEBUGLOG
log->logNodeAdd(&memberNode->addr, fromAddr);
#endif
sendMemberList(fromAddr, JOINREP);
break;
}
case JOINREP:
{
memberNode->inGroup = true;
updateMemberList((unsigned char*) data, size);
break;
}
case GOSSIP:
{
updateMemberList((unsigned char*) data, size);
break;
}
case FAIL:
{
Address* failAddr = reinterpret_cast<Address*>(mType + 1);
handleFAILNotification(failAddr);
break;
}
default:
{
cout << "in case default - " << endl;
break;
}
}
#pragma pack(pop)
return 1;
}
/**
* FUNCTION NAME: nodeLoopOps
*
* DESCRIPTION: Check if any node hasn't responded within a timeout period and then delete
* the nodes
* Propagate your membership list
*/
void MP1Node::nodeLoopOps() {
if (par->getcurrtime() > 3 && memberNode->memberList.size() > 1) {
memberNode->memberList.begin()->heartbeat++;
memberNode->memberList.begin()->timestamp = par->getcurrtime();
int pos = rand() % (memberNode->memberList.size() - 1) + 1;
MemberListEntry& member = memberNode->memberList[pos];
if (par->getcurrtime() - member.timestamp > TFAIL) {
// FIXME escolher outro
return;
}
Address memberAddr;
memcpy(&memberAddr.addr[0], &member.id, sizeof(int));
memcpy(&memberAddr.addr[4], &member.port, sizeof(short));
sendMemberList("HEARTBEATREQ", HEARTBEATREQ, &memberAddr);
}
}
/**
* FUNCTION NAME: nodeLoopOps
*
* DESCRIPTION: Check if any node hasn't responded within a timeout period and then delete
* the nodes
* Propagate your membership list
*/
void MP1Node::nodeLoopOps() {
/*
* Your code goes here
*/
vector<MemberListEntry>::iterator myPos;
//Check and remove node older than TREMOVE
for (myPos = memberNode->memberList.begin();
myPos != memberNode->memberList.end();
++myPos) {
if (myPos->gettimestamp() < par->getcurrtime() - TREMOVE) {
// Older than TREMOVE -- Remove from memberlist and send FAIL message to other nodes
Address a = AddrUtils::initAddress(myPos->getid(), myPos->getport());
removeMember(myPos);
sendFAILNotification(&a);
myPos = memberNode->memberList.begin(); //reset iterator
}
}
//Gossip every TGOSSIP to PGOSSIPNODES
if (par->getcurrtime() % TGOSSIP == 0 ) {
int k = 0, n = 0;
while (k < PGOSSIPNODES) {
n = rand()%memberNode->memberList.size() ;
Address a = AddrUtils::initAddress((*memberNode).memberList[n].getid(),
memberNode->memberList[n].getport());
#ifdef DEBUGLOG
stringstream out;
string s = a.getAddress();
out << "Gossip ml to: " << s;
log->LOG(&memberNode->addr, (char*) out.str().c_str());
#endif
sendMemberList(&a, GOSSIP);
k++;
}
}
return;
}
bool MP1Node::recvJoinReq(void *env, char *data, int size) {//kiem tra kich thuoc goi tin co hop le
if (size < (int)(sizeof(memberNode->addr.addr) + sizeof(long))) {
#ifdef DEBUGLOG
log->LOG(&memberNode->addr, "Message JOINREQ received with wrong size. Ignored.");
#endif
return false;
}
Address joinaddr;
long heartbeat;
memcpy(joinaddr.addr, data, sizeof(memberNode->addr.addr));
memcpy(&heartbeat, data + sizeof(memberNode->addr.addr), sizeof(long));
int id = *(int*)(&joinaddr.addr);
int port = *(short*)(&joinaddr.addr[4]);
updateMember(id, port, heartbeat);
sendMemberList("JOINREP", JOINREP, &joinaddr);
return true;
}
