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eliminate extra lookups for sequential fragments

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orignal 2021-06-26 07:18:42 -04:00
parent 3c07665479
commit d0c5732e16
2 changed files with 113 additions and 42 deletions
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12
libi2pd/TunnelEndpoint.h
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@ -10,7 +10,6 @@
#define TUNNEL_ENDPOINT_H__
#include <inttypes.h>
#include <map>
#include <unordered_map>
#include <string>
#include "I2NPProtocol.h"
@ -37,7 +36,7 @@ namespace tunnel
public:
TunnelEndpoint (bool isInbound): m_IsInbound (isInbound), m_NumReceivedBytes (0) {};
TunnelEndpoint (bool isInbound): m_IsInbound (isInbound), m_NumReceivedBytes (0), m_CurrentMsgID (0) {};
~TunnelEndpoint ();
size_t GetNumReceivedBytes () const { return m_NumReceivedBytes; };
void Cleanup ();
@ -47,18 +46,23 @@ namespace tunnel
private:
void HandleFollowOnFragment (uint32_t msgID, bool isLastFragment, const TunnelMessageBlockEx& m);
bool ConcatFollowOnFragment (TunnelMessageBlockEx& msg, const uint8_t * fragment, size_t size) const; // true if success
void HandleCurrenMessageFollowOnFragment (const uint8_t * frgament, size_t size, bool isLastFragment);
void HandleNextMessage (const TunnelMessageBlock& msg);
void AddOutOfSequenceFragment (uint32_t msgID, uint8_t fragmentNum, bool isLastFragment, std::shared_ptr<I2NPMessage> data);
bool ConcatNextOutOfSequenceFragment (uint32_t msgID, TunnelMessageBlockEx& msg); // true if something added
void HandleOutOfSequenceFragments (uint32_t msgID, TunnelMessageBlockEx& msg);
void AddIncompleteCurrentMessage ();
private:
std::unordered_map<uint32_t, TunnelMessageBlockEx> m_IncompleteMessages;
std::map<std::pair<uint32_t, uint8_t>, Fragment> m_OutOfSequenceFragments; // (msgID, fragment#)->fragment
std::unordered_map<uint64_t, Fragment> m_OutOfSequenceFragments; // ((msgID << 8) + fragment#)->fragment
bool m_IsInbound;
size_t m_NumReceivedBytes;
TunnelMessageBlockEx m_CurrentMessage;
uint32_t m_CurrentMsgID;
};
}
}