ClickHouse/src/IO/ConnectionTimeouts.h
2022-08-12 16:28:21 +02:00

122 lines
4.7 KiB
C++

#pragma once
#include <Core/Defines.h>
#include <Interpreters/Context_fwd.h>
#include <Poco/Timespan.h>
namespace DB
{
struct Settings;
struct ConnectionTimeouts
{
Poco::Timespan connection_timeout;
Poco::Timespan send_timeout;
Poco::Timespan receive_timeout;
Poco::Timespan tcp_keep_alive_timeout;
Poco::Timespan http_keep_alive_timeout;
Poco::Timespan secure_connection_timeout;
/// Timeouts for HedgedConnections
Poco::Timespan hedged_connection_timeout;
Poco::Timespan receive_data_timeout;
/// Timeout for synchronous request-result protocol call (like Ping or TablesStatus)
Poco::Timespan sync_request_timeout = Poco::Timespan(DBMS_DEFAULT_SYNC_REQUEST_TIMEOUT_SEC, 0);
ConnectionTimeouts() = default;
ConnectionTimeouts(Poco::Timespan connection_timeout_,
Poco::Timespan send_timeout_,
Poco::Timespan receive_timeout_)
: connection_timeout(connection_timeout_),
send_timeout(send_timeout_),
receive_timeout(receive_timeout_),
tcp_keep_alive_timeout(0),
http_keep_alive_timeout(0),
secure_connection_timeout(connection_timeout),
hedged_connection_timeout(receive_timeout_),
receive_data_timeout(receive_timeout_)
{
}
ConnectionTimeouts(Poco::Timespan connection_timeout_,
Poco::Timespan send_timeout_,
Poco::Timespan receive_timeout_,
Poco::Timespan tcp_keep_alive_timeout_)
: connection_timeout(connection_timeout_),
send_timeout(send_timeout_),
receive_timeout(receive_timeout_),
tcp_keep_alive_timeout(tcp_keep_alive_timeout_),
http_keep_alive_timeout(0),
secure_connection_timeout(connection_timeout),
hedged_connection_timeout(receive_timeout_),
receive_data_timeout(receive_timeout_)
{
}
ConnectionTimeouts(Poco::Timespan connection_timeout_,
Poco::Timespan send_timeout_,
Poco::Timespan receive_timeout_,
Poco::Timespan tcp_keep_alive_timeout_,
Poco::Timespan http_keep_alive_timeout_)
: connection_timeout(connection_timeout_),
send_timeout(send_timeout_),
receive_timeout(receive_timeout_),
tcp_keep_alive_timeout(tcp_keep_alive_timeout_),
http_keep_alive_timeout(http_keep_alive_timeout_),
secure_connection_timeout(connection_timeout),
hedged_connection_timeout(receive_timeout_),
receive_data_timeout(receive_timeout_)
{
}
ConnectionTimeouts(Poco::Timespan connection_timeout_,
Poco::Timespan send_timeout_,
Poco::Timespan receive_timeout_,
Poco::Timespan tcp_keep_alive_timeout_,
Poco::Timespan http_keep_alive_timeout_,
Poco::Timespan secure_connection_timeout_,
Poco::Timespan receive_hello_timeout_,
Poco::Timespan receive_data_timeout_)
: connection_timeout(connection_timeout_),
send_timeout(send_timeout_),
receive_timeout(receive_timeout_),
tcp_keep_alive_timeout(tcp_keep_alive_timeout_),
http_keep_alive_timeout(http_keep_alive_timeout_),
secure_connection_timeout(secure_connection_timeout_),
hedged_connection_timeout(receive_hello_timeout_),
receive_data_timeout(receive_data_timeout_)
{
}
static Poco::Timespan saturate(Poco::Timespan timespan, Poco::Timespan limit)
{
if (limit.totalMicroseconds() == 0)
return timespan;
else
return (timespan > limit) ? limit : timespan;
}
ConnectionTimeouts getSaturated(Poco::Timespan limit) const
{
return ConnectionTimeouts(saturate(connection_timeout, limit),
saturate(send_timeout, limit),
saturate(receive_timeout, limit),
saturate(tcp_keep_alive_timeout, limit),
saturate(http_keep_alive_timeout, limit),
saturate(secure_connection_timeout, limit),
saturate(hedged_connection_timeout, limit),
saturate(receive_data_timeout, limit));
}
/// Timeouts for the case when we have just single attempt to connect.
static ConnectionTimeouts getTCPTimeoutsWithoutFailover(const Settings & settings);
/// Timeouts for the case when we will try many addresses in a loop.
static ConnectionTimeouts getTCPTimeoutsWithFailover(const Settings & settings);
static ConnectionTimeouts getHTTPTimeouts(ContextPtr context);
};
}