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Basic consensus implementation (#45)

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Consensus for user connections, user inputs, contract outputs and time.
This commit is contained in:
Asanka Indrajith
2019-10-26 11:46:32 -04:00
committed by GitHub
parent b4b9132d18
commit d6acee4e09
28 changed files with 1464 additions and 487 deletions
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12
src/usr/usr.cpp
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@@ -24,6 +24,7 @@ ssl::context ctx{ssl::context::tlsv13};
* Map key: User socket session id (<ip:port>)
*/
std::unordered_map<std::string, usr::connected_user> users;
std::mutex users_mutex; // Mutex for users access race conditions.
/**
* Holds set of connected user session ids and public keys for lookups.
@@ -219,7 +220,10 @@ int add_user(sock::socket_session<user_outbound_message> *session, const std::st
return -1;
}
users.emplace(sessionid, usr::connected_user(session, pubkey));
{
std::lock_guard<std::mutex> lock(users_mutex);
users.emplace(sessionid, usr::connected_user(session, pubkey));
}
// Populate sessionid map so we can lookup by user pubkey.
sessionids[pubkey] = sessionid;
@@ -246,7 +250,11 @@ int remove_user(const std::string &sessionid)
usr::connected_user &user = itr->second;
sessionids.erase(user.pubkey);
{
std::lock_guard<std::mutex> lock(users_mutex);
sessionids.erase(user.pubkey);
}
users.erase(itr);
return 0;
}