daqbuf/daqbuffer
0
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

WIP on send channel

Browse Source
This commit is contained in:
Dominik Werder
2021-11-08 21:21:55 +01:00
parent 8c7dbf9ed3
commit fa86c7ab7d
8 changed files with 423 additions and 174 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
archapp/src/archeng/configs.rs
View File

@@ -14,7 +14,7 @@ use tokio_postgres::{Client, Row};
pub struct ChannelNameStream {
db_config: Database,
off: u64,
max_name: String,
db_done: bool,
batch: VecDeque<String>,
connect_fut: Option<Pin<Box<dyn Future<Output = Result<Client, Error>> + Send>>>,
@@ -27,7 +27,7 @@ impl ChannelNameStream {
pub fn new(db_config: Database) -> Self {
Self {
db_config,
off: 0,
max_name: String::new(),
db_done: false,
batch: VecDeque::new(),
connect_fut: None,
@@ -55,10 +55,12 @@ impl Stream for ChannelNameStream {
match fut.poll_unpin(cx) {
Ready(Ok(rows)) => {
self.select_fut = None;
self.off += rows.len() as u64;
if rows.len() == 0 {
self.db_done = true;
}
if let Some(last) = rows.last().as_ref() {
self.max_name = last.get(1);
}
for row in rows {
self.batch.push_back(row.get(1));
}
@@ -75,13 +77,13 @@ impl Stream for ChannelNameStream {
match fut.poll_unpin(cx) {
Ready(Ok(dbc)) => {
self.connect_fut = None;
let off = self.off as i64;
info!("select channels off {}", off);
let max_name = self.max_name.clone();
info!("select channels max_name {}", max_name);
let fut = async move {
let rows = dbc
.query(
"select rowid, name from channels where config = '{}'::jsonb order by name offset $1 limit 64",
&[&off],
"select rowid, name from channels where config = '{}'::jsonb and name > $1 order by name limit 64",
&[&max_name],
)
.await?;
Ok::<_, Error>(rows)