mirror of https://git.meli.delivery/meli/meli
Async Cursors WIP
parent
cf9a04a591
commit
486d01272e
@ -0,0 +1,80 @@
|
|||||||
|
/*
|
||||||
|
* ____
|
||||||
|
*
|
||||||
|
* Copyright ____ Manos Pitsidianakis
|
||||||
|
*
|
||||||
|
* This file is part of ____.
|
||||||
|
*
|
||||||
|
* ____ is free software: you can redistribute it and/or modify
|
||||||
|
* it under the terms of the GNU General Public License as published by
|
||||||
|
* the Free Software Foundation, either version 3 of the License, or
|
||||||
|
* (at your option) any later version.
|
||||||
|
*
|
||||||
|
* ____ is distributed in the hope that it will be useful,
|
||||||
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
* GNU General Public License for more details.
|
||||||
|
*
|
||||||
|
* You should have received a copy of the GNU General Public License
|
||||||
|
* along with ____. If not, see <http://www.gnu.org/licenses/>.
|
||||||
|
*/
|
||||||
|
|
||||||
|
use super::*;
|
||||||
|
|
||||||
|
#[derive(Debug)]
|
||||||
|
pub struct ImapCursor {
|
||||||
|
pub connection: Arc<FutureMutex<ImapConnection>>,
|
||||||
|
pub mailbox_hash: MailboxHash,
|
||||||
|
pub uid_store: Arc<UIDStore>,
|
||||||
|
}
|
||||||
|
|
||||||
|
impl crate::cursor::Cursor for ImapCursor {
|
||||||
|
fn fetch(&self, start: usize, count: usize) -> Result<EnvelopeStream> {
|
||||||
|
let connection = self.connection.clone();
|
||||||
|
let mailbox_hash = self.mailbox_hash;
|
||||||
|
let uid_store = self.uid_store.clone();
|
||||||
|
Ok(Box::pin(async_stream::try_stream! {
|
||||||
|
let mut response = Vec::with_capacity(8 * 1024);
|
||||||
|
{
|
||||||
|
let f = &uid_store.mailboxes.lock().await[&mailbox_hash];
|
||||||
|
if f.no_select {
|
||||||
|
yield vec![];
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
};
|
||||||
|
loop {
|
||||||
|
{
|
||||||
|
let mut conn = connection.lock().await;
|
||||||
|
conn.examine_mailbox(mailbox_hash, &mut response, false)
|
||||||
|
.await?;
|
||||||
|
conn.send_command_raw(b"UID SORT (REVERSE ARRIVAL) UTF-8 ALL").await?;
|
||||||
|
conn.read_response(&mut response, RequiredResponses::empty())
|
||||||
|
.await?;
|
||||||
|
}
|
||||||
|
|
||||||
|
yield vec![];
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
}))
|
||||||
|
}
|
||||||
|
|
||||||
|
fn total(&self) -> ResultFuture<Option<usize>> {
|
||||||
|
Err(Error::new("Cursor not supported in this backend.").set_kind(ErrorKind::NotSupported))
|
||||||
|
}
|
||||||
|
|
||||||
|
fn unseen(&self) -> ResultFuture<Option<usize>> {
|
||||||
|
Err(Error::new("Cursor not supported in this backend.").set_kind(ErrorKind::NotSupported))
|
||||||
|
}
|
||||||
|
|
||||||
|
fn has_updates(&self) -> ResultFuture<bool> {
|
||||||
|
Err(Error::new("Cursor not supported in this backend.").set_kind(ErrorKind::NotSupported))
|
||||||
|
}
|
||||||
|
|
||||||
|
fn reset(&self) -> ResultFuture<()> {
|
||||||
|
Err(Error::new("Cursor not supported in this backend.").set_kind(ErrorKind::NotSupported))
|
||||||
|
}
|
||||||
|
|
||||||
|
fn query(&self) -> Result<Arc<Query>> {
|
||||||
|
Err(Error::new("Cursor not supported in this backend.").set_kind(ErrorKind::NotSupported))
|
||||||
|
}
|
||||||
|
}
|
Loading…
Reference in New Issue