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LCL history request and response. (#59)

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Detect and request missing lcl history from another random node.
Sending lcl history response to a asked node.
Getting lcl history response and applying it.
Delete lcl that exceeds max ledger sequence.
This commit is contained in:
Asanka Indrajith
2019-11-19 07:50:33 -05:00
committed by GitHub
parent 0439ec93e2
commit 95683035b9
18 changed files with 1006 additions and 98 deletions
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21
src/p2p/peer_session_handler.cpp
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@@ -11,6 +11,7 @@
#include "../sock/socket_session.hpp"
#include "p2p.hpp"
#include "peer_session_handler.hpp"
#include "../cons/ledger_handler.hpp"
namespace p2pmsg = fbschema::p2pmsg;
@@ -109,6 +110,26 @@ void peer_session_handler::on_message(sock::socket_session<peer_outbound_message
const std::string npl_message(reinterpret_cast<const char *>(container_buf_ptr), container_buf_size);
ctx.collected_msgs.npl_messages.push_back(std::move(npl_message));
}
else if (content_message_type == p2pmsg::Message_History_Request_Message) //message is a lcl history request message
{
LOG_DBG << "Received history request message type from peer.";
const p2p::history_request hr = p2pmsg::create_history_request_from_msg(*content->message_as_History_Request_Message());
//first check node has the required lcl available. -> if so send lcl history accordingly.
bool req_lcl_avail = cons::check_required_lcl_availability(hr);
if (req_lcl_avail > 0)
{
p2p::peer_outbound_message hr_msg = cons::send_ledger_history(hr);
session->send(hr_msg);
}
}
else if (content_message_type == p2pmsg::Message_History_Response_Message) //message is a lcl history response message
{
LOG_DBG << "Received history response message type from peer.";
cons::handle_ledger_history_response(
p2pmsg::create_history_response_from_msg(*content->message_as_History_Response_Message()));
}
else
{
session->increment_metric(sock::SESSION_THRESHOLDS::MAX_BADMSGS_PER_MINUTE, 1);