Remove dead next_block_for function

This commit is contained in:
Steven Fackler 2015-05-30 15:01:27 -07:00
parent 6c7d5281fa
commit ccd3c45600

View File

@ -289,62 +289,6 @@ impl<'conn> Notifications<'conn> {
_ => unreachable!() _ => unreachable!()
} }
} }
/*
/// Returns the oldest pending notification
///
/// If no notifications are pending, blocks for up to `timeout` time, after
/// which `None` is returned.
///
/// ## Example
///
/// ```rust,no_run
/// # #![allow(unstable)]
/// use std::old_io::{IoError, IoErrorKind};
/// use std::time::Duration;
///
/// use postgres::Error;
///
/// # let conn = postgres::Connection::connect("", &postgres::SslMode::None).unwrap();
/// match conn.notifications().next_block_for(Duration::seconds(2)) {
/// Some(Ok(notification)) => println!("notification: {}", notification.payload),
/// Some(Err(e)) => println!("Error: {:?}", e),
/// None => println!("Wait for notification timed out"),
/// }
/// ```
pub fn next_block_for(&mut self, timeout: Duration) -> Option<Result<Notification>> {
if let Some(notification) = self.next() {
return Some(Ok(notification));
}
let mut conn = self.conn.conn.borrow_mut();
if conn.desynchronized {
return Some(Err(Error::StreamDesynchronized));
}
let end = SteadyTime::now() + timeout;
loop {
let timeout = max(Duration::zero(), end - SteadyTime::now()).num_milliseconds() as u64;
conn.stream.set_read_timeout(Some(timeout));
match conn.read_one_message() {
Ok(Some(NotificationResponse { pid, channel, payload })) => {
return Some(Ok(Notification {
pid: pid,
channel: channel,
payload: payload
}))
}
Ok(Some(_)) => unreachable!(),
Ok(None) => {}
Err(IoError { kind: IoErrorKind::TimedOut, .. }) => {
conn.desynchronized = false;
return None;
}
Err(e) => return Some(Err(Error::IoError(e))),
}
}
}
*/
} }
/// Contains information necessary to cancel queries for a session. /// Contains information necessary to cancel queries for a session.