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reuse NTCP2 frame buffers

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This commit is contained in:
orignal
2018-08-08 16:23:44 -04:00
parent 2b61f9a731
commit f7728aa1f6
2 changed files with 19 additions and 6 deletions
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17
libi2pd/NTCP2.cpp
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@@ -143,7 +143,7 @@ namespace transport
m_Server (server), m_Socket (m_Server.GetService ()),
m_IsEstablished (false), m_IsTerminated (false),
m_SessionRequestBuffer (nullptr), m_SessionCreatedBuffer (nullptr), m_SessionConfirmedBuffer (nullptr),
m_NextReceivedBuffer (nullptr), m_NextSendBuffer (nullptr),
m_NextReceivedLen (0), m_NextReceivedBuffer (nullptr), m_NextSendBuffer (nullptr),
m_ReceiveSequenceNumber (0), m_SendSequenceNumber (0), m_IsSending (false)
{
m_Establisher.reset (new NTCP2Establisher);
@@ -647,11 +647,15 @@ namespace transport
}
else
{
i2p::crypto::Siphash<8> (m_ReceiveIV, m_ReceiveIV, 8, m_ReceiveSipKey);
i2p::crypto::Siphash<8> (m_ReceiveIV, m_ReceiveIV, 8, m_ReceiveSipKey);
uint16_t oldLen = m_NextReceivedLen;
m_NextReceivedLen = be16toh (m_NextReceivedLen ^ bufbe16toh(m_ReceiveIV));
LogPrint (eLogDebug, "NTCP2: received length ", m_NextReceivedLen);
delete[] m_NextReceivedBuffer;
m_NextReceivedBuffer = new uint8_t[m_NextReceivedLen];
if (m_NextReceivedLen > oldLen)
{
delete[] m_NextReceivedBuffer;
m_NextReceivedBuffer = new uint8_t[m_NextReceivedLen];
}
Receive ();
}
}
@@ -784,7 +788,8 @@ namespace transport
{
if (!m_SendQueue.empty ())
{
uint8_t * payload = new uint8_t[NTCP2_UNENCRYPTED_FRAME_MAX_SIZE];
auto buf = m_Server.NewNTCP2FrameBuffer ();
uint8_t * payload = buf->data ();
size_t s = 0;
// add I2NP blocks
while (!m_SendQueue.empty ())
@@ -815,7 +820,7 @@ namespace transport
s += paddingSize;
// send
SendNextFrame (payload, s);
delete[] payload;
m_Server.DeleteNTCP2FrameBuffer (buf);
}
}