Files
daqbuffer/dbconn/src/lib.rs
T
Dominik Werder 4caa133ad7 WIP
2021-05-03 22:23:40 +02:00

31 lines
1003 B
Rust

use err::Error;
use netpod::log::*;
use netpod::{Channel, NodeConfigCached};
use tokio_postgres::NoTls;
pub async fn channel_exists(channel: &Channel, node_config: &NodeConfigCached) -> Result<bool, Error> {
let d = &node_config.node_config.cluster.database;
let uri = format!("postgresql://{}:{}@{}:{}/{}", d.user, d.pass, d.host, 5432, d.name);
let (cl, conn) = tokio_postgres::connect(&uri, NoTls).await?;
// TODO monitor connection drop.
let _cjh = tokio::spawn(async move {
if let Err(e) = conn.await {
error!("connection error: {}", e);
}
Ok::<_, Error>(())
});
let rows = cl
.query("select rowid from channels where name = $1::text", &[&channel.name])
.await?;
debug!("channel_exists {} rows", rows.len());
for row in rows {
debug!(
" db on channel search: {:?} {:?} {:?}",
row,
row.columns(),
row.get::<_, i64>(0)
);
}
Ok(true)
}