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cleanup received messages list by timestamp

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orignal 2021-09-21 19:01:22 -04:00
parent 317d8cdc48
commit 31bdce1f1f
2 changed files with 17 additions and 5 deletions
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19
libi2pd/SSUData.cpp
View File

@ -246,8 +246,8 @@ namespace transport
{
if (!m_ReceivedMessages.count (msgID))
{
m_ReceivedMessages.insert (msgID);
m_LastMessageReceivedTime = i2p::util::GetSecondsSinceEpoch ();
m_ReceivedMessages.emplace (msgID, m_LastMessageReceivedTime);
if (!msg->IsExpired ())
{
m_Handler.PutNextMessage (msg);
@ -511,10 +511,21 @@ namespace transport
else
++it;
}
// decay
if (m_ReceivedMessages.size () > MAX_NUM_RECEIVED_MESSAGES ||
i2p::util::GetSecondsSinceEpoch () > m_LastMessageReceivedTime + DECAY_INTERVAL)
if (m_ReceivedMessages.size () > MAX_NUM_RECEIVED_MESSAGES || ts > m_LastMessageReceivedTime + DECAY_INTERVAL)
// decay
m_ReceivedMessages.clear ();
else
{
// delete old received messages
for (auto it = m_ReceivedMessages.begin (); it != m_ReceivedMessages.end ();)
{
if (ts > it->second + RECEIVED_MESSAGES_CLEANUP_TIMEOUT)
it = m_ReceivedMessages.erase (it);
else
++it;
}
}
ScheduleIncompleteMessagesCleanup ();
}

3
libi2pd/SSUData.h
View File

@ -40,6 +40,7 @@ namespace transport
const int MAX_NUM_RESENDS = 5;
const int DECAY_INTERVAL = 20; // in seconds
const int INCOMPLETE_MESSAGES_CLEANUP_TIMEOUT = 30; // in seconds
const int RECEIVED_MESSAGES_CLEANUP_TIMEOUT = 40; // in seconds
const unsigned int MAX_NUM_RECEIVED_MESSAGES = 1000; // how many msgID we store for duplicates check
const int MAX_OUTGOING_WINDOW_SIZE = 200; // how many unacked message we can store
// data flags
@ -128,7 +129,7 @@ namespace transport
SSUSession& m_Session;
std::unordered_map<uint32_t, std::shared_ptr<IncompleteMessage> > m_IncompleteMessages;
std::unordered_map<uint32_t, std::shared_ptr<SentMessage> > m_SentMessages;
std::unordered_set<uint32_t> m_ReceivedMessages;
std::unordered_map<uint32_t, uint64_t> m_ReceivedMessages; // msgID -> timestamp in seconds
boost::asio::deadline_timer m_ResendTimer, m_IncompleteMessagesCleanupTimer;
int m_MaxPacketSize, m_PacketSize;
i2p::I2NPMessagesHandler m_Handler;