CNode* CMigrationInfo::FindNodeWithFreeMem(CNode* i_sourceNode, CProcess* i_process)
{
i_sourceNode->WriteLog("MIGRATION - MEM ISSUES - Searching for destination node to establish migration");
CNode* returnValue = NULL;
bool found = false;
double maxFreeMem = 0;
uint32_t maxIndex = 0;
// find out which is the process with the greatest free mem that we can migrate to:
if (i_sourceNode->GetAvailableBandwidth() > 0)
{
for (uint32_t i = 0; i < CMasterSingleton::GetInstance()->GetNodeCount(); ++i)
{
CNode* currentNode = CMasterSingleton::GetInstance()->GetNode(i);
double freeMem = currentNode->GetFreeMem();
if (maxFreeMem < freeMem && i_sourceNode->GetId() != currentNode->GetId() && CanBeDestination(currentNode, i_process))
{
maxFreeMem = freeMem;
maxIndex = i;
found = true;
}
}
// if found is false, we will return a null pointer meaning that the migration should not happen
if (found)
returnValue = CMasterSingleton::GetInstance()->GetNode(maxIndex);
}
return returnValue;
}
