2021-11-22 16:28:30 +00:00
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use crate::intf::*;
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use crate::xx::*;
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use crate::*;
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#[derive(Clone, Debug)]
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pub struct ConnectionTableEntry {
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pub conn: NetworkConnection,
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pub established_time: u64,
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pub last_message_sent_time: Option<u64>,
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pub last_message_recv_time: Option<u64>,
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pub stopper: Eventual,
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}
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impl PartialEq for ConnectionTableEntry {
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fn eq(&self, other: &ConnectionTableEntry) -> bool {
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if self.conn != other.conn {
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return false;
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}
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if self.established_time != other.established_time {
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return false;
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}
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if self.last_message_sent_time != other.last_message_sent_time {
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return false;
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}
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if self.last_message_recv_time != other.last_message_recv_time {
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return false;
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}
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2021-11-27 17:44:21 +00:00
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true
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2021-11-22 16:28:30 +00:00
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}
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}
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#[derive(Debug)]
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pub struct ConnectionTableInner {
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conn_by_addr: BTreeMap<ConnectionDescriptor, ConnectionTableEntry>,
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}
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#[derive(Clone)]
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pub struct ConnectionTable {
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inner: Arc<Mutex<ConnectionTableInner>>,
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}
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impl core::fmt::Debug for ConnectionTable {
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fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
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f.debug_struct("ConnectionTable")
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.field("inner", &*self.inner.lock())
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.finish()
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}
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}
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2021-11-27 17:44:21 +00:00
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impl Default for ConnectionTable {
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fn default() -> Self {
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Self::new()
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}
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}
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2021-11-22 16:28:30 +00:00
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impl ConnectionTable {
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pub fn new() -> Self {
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Self {
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inner: Arc::new(Mutex::new(ConnectionTableInner {
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conn_by_addr: BTreeMap::new(),
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})),
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}
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}
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pub fn add_connection(
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&self,
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descriptor: ConnectionDescriptor,
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conn: NetworkConnection,
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2021-12-14 14:48:33 +00:00
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) -> Result<ConnectionTableEntry, String> {
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trace!("descriptor: {:?}", descriptor);
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2021-11-22 16:28:30 +00:00
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assert_ne!(
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descriptor.protocol_type(),
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ProtocolType::UDP,
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"Only connection oriented protocols go in the table!"
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);
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let mut inner = self.inner.lock();
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if inner.conn_by_addr.contains_key(&descriptor) {
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2021-12-14 14:48:33 +00:00
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return Err(format!(
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"Connection already added to table: {:?}",
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descriptor
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));
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2021-11-22 16:28:30 +00:00
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}
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let timestamp = get_timestamp();
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let entry = ConnectionTableEntry {
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2021-11-27 17:44:21 +00:00
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conn,
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2021-11-22 16:28:30 +00:00
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established_time: timestamp,
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last_message_sent_time: None,
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last_message_recv_time: None,
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stopper: Eventual::new(),
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};
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let res = inner.conn_by_addr.insert(descriptor, entry.clone());
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assert!(res.is_none());
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Ok(entry)
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}
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pub fn get_connection(
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&self,
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descriptor: &ConnectionDescriptor,
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) -> Option<ConnectionTableEntry> {
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let inner = self.inner.lock();
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2021-11-27 17:44:21 +00:00
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inner.conn_by_addr.get(descriptor).cloned()
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2021-11-22 16:28:30 +00:00
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}
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pub fn connection_count(&self) -> usize {
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let inner = self.inner.lock();
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inner.conn_by_addr.len()
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}
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pub fn remove_connection(
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&self,
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descriptor: &ConnectionDescriptor,
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2021-12-14 14:48:33 +00:00
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) -> Result<ConnectionTableEntry, String> {
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trace!("descriptor: {:?}", descriptor);
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2021-11-22 16:28:30 +00:00
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let mut inner = self.inner.lock();
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2021-11-27 17:44:21 +00:00
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let res = inner.conn_by_addr.remove(descriptor);
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2021-11-22 16:28:30 +00:00
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match res {
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2021-11-28 02:05:36 +00:00
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Some(v) => Ok(v),
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2021-12-14 14:48:33 +00:00
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None => Err(format!("Connection not in table: {:?}", descriptor)),
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2021-11-22 16:28:30 +00:00
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}
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}
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}
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