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Implement Least Attained First scheduling of streams

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This commit is contained in:
Alex 2022-09-06 19:42:49 +02:00
parent 5af23955af
commit 0f799a7768
Signed by untrusted user: lx
GPG key ID: 0E496D15096376BE
1 changed files with 17 additions and 5 deletions
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22
src/send.rs
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@ -59,6 +59,7 @@ struct SendQueueItem {
prio: RequestPriority,
order_tag: Option<OrderTag>,
data: ByteStreamReader,
sent: usize,
}
impl SendQueue {
@ -106,7 +107,7 @@ impl SendQueuePriority {
let i = order_vec.iter().take_while(|o2| **o2 < order).count();
order_vec.insert(i, order);
}
self.items.push_back(item);
self.items.push_front(item);
}
fn remove(&mut self, id: RequestID) {
if let Some(i) = self.items.iter().position(|x| x.id == id) {
@ -139,7 +140,11 @@ impl SendQueuePriority {
_ => unreachable!(),
});
if eos || packet.is_err() {
let is_err = packet.is_err();
let data_frame = DataFrame::from_packet(packet, !eos);
item.sent += data_frame.data().len();
if eos || is_err {
if let Some(OrderTag(stream, order)) = item.order_tag {
assert_eq!(
self.order.get_mut(&stream).unwrap().pop_front(),
@ -147,10 +152,16 @@ impl SendQueuePriority {
)
}
self.items.remove(j);
} else {
for k in j..self.items.len() - 1 {
if self.items[k].sent >= self.items[k + 1].sent {
self.items.swap(k, k + 1);
} else {
break;
}
}
}
let data_frame = DataFrame::from_packet(packet, !eos);
return Poll::Ready((id, data_frame));
}
}
@ -160,7 +171,7 @@ impl SendQueuePriority {
fn dump(&self, prio: u8) -> String {
self.items
.iter()
.map(|i| format!("[{} {} {:?}]", prio, i.id, i.order_tag))
.map(|i| format!("[{} {} {:?} @{}]", prio, i.id, i.order_tag, i.sent))
.collect::<Vec<_>>()
.join(" ")
}
@ -294,6 +305,7 @@ pub(crate) trait SendLoop: Sync {
prio,
order_tag,
data: ByteStreamReader::new(data),
sent: 0,
})
}
Some(SendItem::Cancel(id)) => {