TCP::TCP(IPStack& inet) :
inet_(inet),
listeners_(),
connections_(),
writeq(),
used_ports(),
MAX_SEG_LIFETIME(30s)
{
inet.on_transmit_queue_available(transmit_avail_delg::from<TCP,&TCP::process_writeq>(this));
}
TCP::TCP(IPStack& inet, bool smp_enable) :
inet_{inet},
listeners_(),
connections_(),
ports_(inet.tcp_ports()),
writeq(),
max_seg_lifetime_{default_msl}, // 30s
win_size_{default_ws_window_size}, // 8096*1024
wscale_{default_window_scaling}, // 5
timestamps_{default_timestamps}, // true
dack_timeout_{default_dack_timeout}, // 40ms
max_syn_backlog_{default_max_syn_backlog} // 64
{
Expects(wscale_ <= 14 && "WScale factor cannot exceed 14");
Expects(win_size_ <= 0x40000000 && "Invalid size");
this->cpu_id = SMP::cpu_id();
this->smp_enabled = smp_enable;
std::string stat_prefix;
if (this->smp_enabled == false)
{
inet.on_transmit_queue_available({this, &TCP::process_writeq});
stat_prefix = inet.ifname();
}
else
{
SMP::global_lock();
inet.on_transmit_queue_available({this, &TCP::smp_process_writeq});
SMP::global_unlock();
stat_prefix = inet.ifname() + ".cpu" + std::to_string(this->cpu_id);
}
bytes_rx_ = &Statman::get().create(Stat::UINT64, stat_prefix + ".tcp.rx").get_uint64();
bytes_tx_ = &Statman::get().create(Stat::UINT64, stat_prefix + ".tcp.tx").get_uint64();
packets_rx_ = &Statman::get().create(Stat::UINT64, stat_prefix + ".tcp.packets_rx").get_uint64();
packets_tx_ = &Statman::get().create(Stat::UINT64, stat_prefix + ".tcp.packets_tx").get_uint64();
incoming_connections_ = &Statman::get().create(Stat::UINT64, stat_prefix + ".tcp.conn_incoming").get_uint64();
outgoing_connections_ = &Statman::get().create(Stat::UINT64, stat_prefix + ".tcp.conn_outgoing").get_uint64();
connection_attempts_ = &Statman::get().create(Stat::UINT64, stat_prefix + ".tcp.conn_attempts").get_uint64();
packets_dropped_ = &Statman::get().create(Stat::UINT32, stat_prefix + ".tcp.dropped").get_uint32();
}
