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-rw-r--r--tvix/castore/src/blobservice/from_addr.rs12
-rw-r--r--tvix/castore/src/blobservice/grpc.rs14
-rw-r--r--tvix/castore/src/channel.rs128
-rw-r--r--tvix/castore/src/directoryservice/from_addr.rs12
-rw-r--r--tvix/castore/src/directoryservice/grpc.rs14
-rw-r--r--tvix/castore/src/errors.rs4
-rw-r--r--tvix/castore/src/lib.rs2
-rw-r--r--tvix/castore/src/tonic.rs115
-rw-r--r--tvix/store/src/bin/tvix-store.rs28
-rw-r--r--tvix/store/src/pathinfoservice/from_addr.rs19
-rw-r--r--tvix/store/src/pathinfoservice/grpc.rs4
11 files changed, 170 insertions, 182 deletions
diff --git a/tvix/castore/src/blobservice/from_addr.rs b/tvix/castore/src/blobservice/from_addr.rs
index 916c00442c99..2834d25a1706 100644
--- a/tvix/castore/src/blobservice/from_addr.rs
+++ b/tvix/castore/src/blobservice/from_addr.rs
@@ -13,7 +13,7 @@ use super::{BlobService, GRPCBlobService, MemoryBlobService, SledBlobService};
 /// - `grpc+*://` ([GRPCBlobService])
 ///
 /// See their `from_url` methods for more details about their syntax.
-pub fn from_addr(uri: &str) -> Result<Arc<dyn BlobService>, crate::Error> {
+pub async fn from_addr(uri: &str) -> Result<Arc<dyn BlobService>, crate::Error> {
     let url = Url::parse(uri)
         .map_err(|e| crate::Error::StorageError(format!("unable to parse url: {}", e)))?;
 
@@ -53,7 +53,7 @@ pub fn from_addr(uri: &str) -> Result<Arc<dyn BlobService>, crate::Error> {
         // - In the case of unix sockets, there must be a path, but may not be a host.
         // - In the case of non-unix sockets, there must be a host, but no path.
         // Constructing the channel is handled by tvix_castore::channel::from_url.
-        let client = BlobServiceClient::new(crate::channel::from_url(&url)?);
+        let client = BlobServiceClient::new(crate::tonic::channel_from_url(&url).await?);
         Arc::new(GRPCBlobService::from_client(client))
     } else {
         Err(crate::Error::StorageError(format!(
@@ -95,12 +95,6 @@ mod tests {
     #[test_case("memory:///", false; "memory invalid root path")]
     /// This sets a memory url path to "/foo", which is invalid.
     #[test_case("memory:///foo", false; "memory invalid root path foo")]
-    fn test_from_addr(uri_str: &str, is_ok: bool) {
-        assert_eq!(from_addr(uri_str).is_ok(), is_ok)
-    }
-
-    // the gRPC tests below don't fail, because we connect lazily.
-
     /// Correct scheme to connect to a unix socket.
     #[test_case("grpc+unix:///path/to/somewhere", true; "grpc valid unix socket")]
     /// Correct scheme for unix socket, but setting a host too, which is invalid.
@@ -115,6 +109,6 @@ mod tests {
     #[test_case("grpc+http://localhost/some-path", false; "grpc valid invalid host and path")]
     #[tokio::test]
     async fn test_from_addr_tokio(uri_str: &str, is_ok: bool) {
-        assert_eq!(from_addr(uri_str).is_ok(), is_ok)
+        assert_eq!(from_addr(uri_str).await.is_ok(), is_ok)
     }
 }
diff --git a/tvix/castore/src/blobservice/grpc.rs b/tvix/castore/src/blobservice/grpc.rs
index 85863c29197f..9cc4f340dbf7 100644
--- a/tvix/castore/src/blobservice/grpc.rs
+++ b/tvix/castore/src/blobservice/grpc.rs
@@ -285,10 +285,16 @@ mod tests {
 
         // prepare a client
         let grpc_client = {
-            let url = url::Url::parse(&format!("grpc+unix://{}", socket_path.display()))
-                .expect("must parse");
-            let client =
-                BlobServiceClient::new(crate::channel::from_url(&url).expect("must succeed"));
+            let url = url::Url::parse(&format!(
+                "grpc+unix://{}?wait-connect=1",
+                socket_path.display()
+            ))
+            .expect("must parse");
+            let client = BlobServiceClient::new(
+                crate::tonic::channel_from_url(&url)
+                    .await
+                    .expect("must succeed"),
+            );
 
             GRPCBlobService::from_client(client)
         };
diff --git a/tvix/castore/src/channel.rs b/tvix/castore/src/channel.rs
deleted file mode 100644
index 2fe97247679a..000000000000
--- a/tvix/castore/src/channel.rs
+++ /dev/null
@@ -1,128 +0,0 @@
-use tokio::net::UnixStream;
-use tonic::transport::Channel;
-
-/// Turn a [url::Url] to a [Channel] if it can be parsed successfully.
-/// It supports `grpc+unix:/path/to/socket`,
-/// as well as the regular schemes supported by tonic, prefixed with grpc+,
-/// for example `grpc+http://[::1]:8000`.
-pub fn from_url(url: &url::Url) -> Result<Channel, self::Error> {
-    // Start checking for the scheme to start with grpc+.
-    // If it doesn't start with that, bail out.
-    match url.scheme().strip_prefix("grpc+") {
-        None => Err(Error::MissingGRPCPrefix()),
-        Some(rest) => {
-            if rest == "unix" {
-                if url.host_str().is_some() {
-                    return Err(Error::HostSetForUnixSocket());
-                }
-
-                let url = url.clone();
-                Ok(
-                    tonic::transport::Endpoint::from_static("http://[::]:50051") // doesn't matter
-                        .connect_with_connector_lazy(tower::service_fn(
-                            move |_: tonic::transport::Uri| {
-                                UnixStream::connect(url.path().to_string().clone())
-                            },
-                        )),
-                )
-            } else {
-                // ensure path is empty, not supported with gRPC.
-                if !url.path().is_empty() {
-                    return Err(Error::PathMayNotBeSet());
-                }
-
-                // Stringify the URL and remove the grpc+ prefix.
-                // We can't use `url.set_scheme(rest)`, as it disallows
-                // setting something http(s) that previously wasn't.
-                let url = url.to_string().strip_prefix("grpc+").unwrap().to_owned();
-
-                // Use the regular tonic transport::Endpoint logic to
-                Ok(tonic::transport::Endpoint::try_from(url)
-                    .unwrap()
-                    .connect_lazy())
-            }
-        }
-    }
-}
-
-/// Errors occuring when trying to connect to a backend
-#[derive(Debug, thiserror::Error)]
-pub enum Error {
-    #[error("grpc+ prefix is missing from Url")]
-    MissingGRPCPrefix(),
-
-    #[error("host may not be set for unix domain sockets")]
-    HostSetForUnixSocket(),
-
-    #[error("path may not be set")]
-    PathMayNotBeSet(),
-
-    #[error("transport error: {0}")]
-    TransportError(tonic::transport::Error),
-}
-
-impl From<tonic::transport::Error> for Error {
-    fn from(value: tonic::transport::Error) -> Self {
-        Self::TransportError(value)
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    use super::from_url;
-
-    /// This uses the correct scheme for a unix socket.
-    /// The fact that /path/to/somewhere doesn't exist yet is no problem, because we connect lazily.
-    #[tokio::test]
-    async fn test_valid_unix_path() {
-        let url = url::Url::parse("grpc+unix:///path/to/somewhere").expect("must parse");
-
-        assert!(from_url(&url).is_ok())
-    }
-
-    /// This uses the correct scheme for a unix socket,
-    /// but sets a host, which is unsupported.
-    #[tokio::test]
-    async fn test_invalid_unix_path_with_domain() {
-        let url =
-            url::Url::parse("grpc+unix://host.example/path/to/somewhere").expect("must parse");
-
-        assert!(from_url(&url).is_err())
-    }
-
-    /// This uses the wrong scheme
-    #[test]
-    fn test_invalid_scheme() {
-        let url = url::Url::parse("http://foo.example/test").expect("must parse");
-
-        assert!(from_url(&url).is_err());
-    }
-
-    /// This uses the correct scheme for a HTTP server.
-    /// The fact that nothing is listening there is no problem, because we connect lazily.
-    #[tokio::test]
-    async fn test_valid_http() {
-        let url = url::Url::parse("grpc+http://localhost").expect("must parse");
-
-        assert!(from_url(&url).is_ok());
-    }
-
-    /// This uses the correct scheme for a HTTPS server.
-    /// The fact that nothing is listening there is no problem, because we connect lazily.
-    #[tokio::test]
-    async fn test_valid_https() {
-        let url = url::Url::parse("grpc+https://localhost").expect("must parse");
-
-        assert!(from_url(&url).is_ok());
-    }
-
-    /// This uses the correct scheme, but also specifies
-    /// an additional path, which is not supported for gRPC.
-    /// The fact that nothing is listening there is no problem, because we connect lazily.
-    #[tokio::test]
-    async fn test_invalid_http_with_path() {
-        let url = url::Url::parse("grpc+https://localhost/some-path").expect("must parse");
-
-        assert!(from_url(&url).is_err());
-    }
-}
diff --git a/tvix/castore/src/directoryservice/from_addr.rs b/tvix/castore/src/directoryservice/from_addr.rs
index 6082a8b49fb7..8f79fa6158cc 100644
--- a/tvix/castore/src/directoryservice/from_addr.rs
+++ b/tvix/castore/src/directoryservice/from_addr.rs
@@ -19,7 +19,7 @@ use super::{DirectoryService, GRPCDirectoryService, MemoryDirectoryService, Sled
 ///   Connects to a local tvix-store gRPC service via Unix socket.
 /// - `grpc+http://host:port`, `grpc+https://host:port`
 ///    Connects to a (remote) tvix-store gRPC service.
-pub fn from_addr(uri: &str) -> Result<Arc<dyn DirectoryService>, crate::Error> {
+pub async fn from_addr(uri: &str) -> Result<Arc<dyn DirectoryService>, crate::Error> {
     let url = Url::parse(uri)
         .map_err(|e| crate::Error::StorageError(format!("unable to parse url: {}", e)))?;
 
@@ -60,7 +60,7 @@ pub fn from_addr(uri: &str) -> Result<Arc<dyn DirectoryService>, crate::Error> {
         // - In the case of unix sockets, there must be a path, but may not be a host.
         // - In the case of non-unix sockets, there must be a host, but no path.
         // Constructing the channel is handled by tvix_castore::channel::from_url.
-        let client = DirectoryServiceClient::new(crate::channel::from_url(&url)?);
+        let client = DirectoryServiceClient::new(crate::tonic::channel_from_url(&url).await?);
         Arc::new(GRPCDirectoryService::from_client(client))
     } else {
         Err(crate::Error::StorageError(format!(
@@ -102,12 +102,6 @@ mod tests {
     #[test_case("memory:///", false; "memory invalid root path")]
     /// This sets a memory url path to "/foo", which is invalid.
     #[test_case("memory:///foo", false; "memory invalid root path foo")]
-    fn test_from_addr(uri_str: &str, is_ok: bool) {
-        assert_eq!(from_addr(uri_str).is_ok(), is_ok)
-    }
-
-    // the gRPC tests below don't fail, because we connect lazily.
-
     /// Correct scheme to connect to a unix socket.
     #[test_case("grpc+unix:///path/to/somewhere", true; "grpc valid unix socket")]
     /// Correct scheme for unix socket, but setting a host too, which is invalid.
@@ -122,6 +116,6 @@ mod tests {
     #[test_case("grpc+http://localhost/some-path", false; "grpc valid invalid host and path")]
     #[tokio::test]
     async fn test_from_addr_tokio(uri_str: &str, is_ok: bool) {
-        assert_eq!(from_addr(uri_str).is_ok(), is_ok)
+        assert_eq!(from_addr(uri_str).await.is_ok(), is_ok)
     }
 }
diff --git a/tvix/castore/src/directoryservice/grpc.rs b/tvix/castore/src/directoryservice/grpc.rs
index f0569ac87800..eceaf5ed1f3c 100644
--- a/tvix/castore/src/directoryservice/grpc.rs
+++ b/tvix/castore/src/directoryservice/grpc.rs
@@ -462,10 +462,16 @@ mod tests {
 
         // prepare a client
         let grpc_client = {
-            let url = url::Url::parse(&format!("grpc+unix://{}", socket_path.display()))
-                .expect("must parse");
-            let client =
-                DirectoryServiceClient::new(crate::channel::from_url(&url).expect("must succeed"));
+            let url = url::Url::parse(&format!(
+                "grpc+unix://{}?wait-connect=1",
+                socket_path.display()
+            ))
+            .expect("must parse");
+            let client = DirectoryServiceClient::new(
+                crate::tonic::channel_from_url(&url)
+                    .await
+                    .expect("must succeed"),
+            );
             GRPCDirectoryService::from_client(client)
         };
 
diff --git a/tvix/castore/src/errors.rs b/tvix/castore/src/errors.rs
index 9f596afd4e26..4c164029aeec 100644
--- a/tvix/castore/src/errors.rs
+++ b/tvix/castore/src/errors.rs
@@ -34,8 +34,8 @@ impl From<Error> for Status {
     }
 }
 
-impl From<crate::channel::Error> for Error {
-    fn from(value: crate::channel::Error) -> Self {
+impl From<crate::tonic::Error> for Error {
+    fn from(value: crate::tonic::Error) -> Self {
         Self::StorageError(value.to_string())
     }
 }
diff --git a/tvix/castore/src/lib.rs b/tvix/castore/src/lib.rs
index 5a031aec7686..8d3dc7b4c4a5 100644
--- a/tvix/castore/src/lib.rs
+++ b/tvix/castore/src/lib.rs
@@ -2,11 +2,11 @@ mod digests;
 mod errors;
 
 pub mod blobservice;
-pub mod channel;
 pub mod directoryservice;
 pub mod fixtures;
 pub mod import;
 pub mod proto;
+pub mod tonic;
 pub mod utils;
 
 pub use digests::{B3Digest, B3_LEN};
diff --git a/tvix/castore/src/tonic.rs b/tvix/castore/src/tonic.rs
new file mode 100644
index 000000000000..96f7c7174141
--- /dev/null
+++ b/tvix/castore/src/tonic.rs
@@ -0,0 +1,115 @@
+use tokio::net::UnixStream;
+use tonic::transport::{Channel, Endpoint};
+
+fn url_wants_wait_connect(url: &url::Url) -> bool {
+    url.query_pairs()
+        .filter(|(k, v)| k == "wait-connect" && v == "1")
+        .count()
+        > 0
+}
+
+/// Turn a [url::Url] to a [Channel] if it can be parsed successfully.
+/// It supports `grpc+unix:/path/to/socket`, as well as the regular schemes supported
+/// by tonic, for example `grpc+http://[::1]:8000`.
+/// It supports wait-connect=1 as a URL parameter, in which case we don't connect lazily.
+pub async fn channel_from_url(url: &url::Url) -> Result<Channel, self::Error> {
+    // Stringify the URL and remove the grpc+ prefix.
+    // We can't use `url.set_scheme(rest)`, as it disallows
+    // setting something http(s) that previously wasn't.
+    let unprefixed_url_str = match url.to_string().strip_prefix("grpc+") {
+        None => return Err(Error::MissingGRPCPrefix()),
+        Some(url_str) => url_str.to_owned(),
+    };
+
+    if url.scheme() == "grpc+unix" {
+        if url.host_str().is_some() {
+            return Err(Error::HostSetForUnixSocket());
+        }
+
+        let connector = tower::service_fn({
+            let url = url.clone();
+            move |_: tonic::transport::Uri| UnixStream::connect(url.path().to_string().clone())
+        });
+
+        let channel = if url_wants_wait_connect(url) {
+            Endpoint::from_static("http://[::]:50051")
+                .connect_with_connector(connector)
+                .await?
+        } else {
+            Endpoint::from_static("http://[::]:50051").connect_with_connector_lazy(connector)
+        };
+
+        return Ok(channel);
+    }
+
+    // ensure path is empty, not supported with gRPC.
+    if !url.path().is_empty() {
+        return Err(Error::PathMayNotBeSet());
+    }
+
+    // Use the regular tonic transport::Endpoint logic, but unprefixed_url_str,
+    // as tonic doesn't know about grpc+http[s].
+    let endpoint = Endpoint::try_from(unprefixed_url_str)?;
+    let channel = if url_wants_wait_connect(url) {
+        endpoint.connect().await?
+    } else {
+        endpoint.connect_lazy()
+    };
+
+    Ok(channel)
+}
+
+/// Errors occuring when trying to connect to a backend
+#[derive(Debug, thiserror::Error)]
+pub enum Error {
+    #[error("grpc+ prefix is missing from URL")]
+    MissingGRPCPrefix(),
+
+    #[error("host may not be set for unix domain sockets")]
+    HostSetForUnixSocket(),
+
+    #[error("path may not be set")]
+    PathMayNotBeSet(),
+
+    #[error("transport error: {0}")]
+    TransportError(tonic::transport::Error),
+}
+
+impl From<tonic::transport::Error> for Error {
+    fn from(value: tonic::transport::Error) -> Self {
+        Self::TransportError(value)
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::channel_from_url;
+    use test_case::test_case;
+    use url::Url;
+
+    /// Correct scheme to connect to a unix socket.
+    #[test_case("grpc+unix:///path/to/somewhere", true; "grpc valid unix socket")]
+    /// Connecting with wait-connect set to 0 succeeds, as that's the default.
+    #[test_case("grpc+unix:///path/to/somewhere?wait-connect=0", true; "grpc valid unix wait-connect=0")]
+    /// Connecting with wait-connect set to 1 fails, as the path doesn't exist.
+    #[test_case("grpc+unix:///path/to/somewhere?wait-connect=1", false; "grpc valid unix wait-connect=1")]
+    /// Correct scheme for unix socket, but setting a host too, which is invalid.
+    #[test_case("grpc+unix://host.example/path/to/somewhere", false; "grpc invalid unix socket and host")]
+    /// Correct scheme to connect to localhost, with port 12345
+    #[test_case("grpc+http://[::1]:12345", true; "grpc valid IPv6 localhost port 12345")]
+    /// Correct scheme to connect to localhost over http, without specifying a port.
+    #[test_case("grpc+http://localhost", true; "grpc valid http host without port")]
+    /// Correct scheme to connect to localhost over http, without specifying a port.
+    #[test_case("grpc+https://localhost", true; "grpc valid https host without port")]
+    /// Correct scheme to connect to localhost over http, but with additional path, which is invalid.
+    #[test_case("grpc+http://localhost/some-path", false; "grpc valid invalid host and path")]
+    /// Connecting with wait-connect set to 0 succeeds, as that's the default.
+    #[test_case("grpc+http://localhost?wait-connect=0", true; "grpc valid host wait-connect=0")]
+    /// Connecting with wait-connect set to 1 fails, as the host doesn't exist.
+    #[test_case("grpc+http://nonexist.invalid?wait-connect=1", false; "grpc valid host wait-connect=1")]
+    #[tokio::test]
+    async fn test_from_addr_tokio(uri_str: &str, is_ok: bool) {
+        let url = Url::parse(uri_str).expect("must parse");
+        assert_eq!(channel_from_url(&url).await.is_ok(), is_ok)
+    }
+}
diff --git a/tvix/store/src/bin/tvix-store.rs b/tvix/store/src/bin/tvix-store.rs
index 3f7d984cd014..2669073c9140 100644
--- a/tvix/store/src/bin/tvix-store.rs
+++ b/tvix/store/src/bin/tvix-store.rs
@@ -193,13 +193,14 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
             path_info_service_addr,
         } => {
             // initialize stores
-            let blob_service = blobservice::from_addr(&blob_service_addr)?;
-            let directory_service = directoryservice::from_addr(&directory_service_addr)?;
+            let blob_service = blobservice::from_addr(&blob_service_addr).await?;
+            let directory_service = directoryservice::from_addr(&directory_service_addr).await?;
             let path_info_service = pathinfoservice::from_addr(
                 &path_info_service_addr,
                 blob_service.clone(),
                 directory_service.clone(),
-            )?;
+            )
+            .await?;
 
             let listen_address = listen_address
                 .unwrap_or_else(|| "[::]:8000".to_string())
@@ -247,13 +248,14 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
             path_info_service_addr,
         } => {
             // FUTUREWORK: allow flat for single files?
-            let blob_service = blobservice::from_addr(&blob_service_addr)?;
-            let directory_service = directoryservice::from_addr(&directory_service_addr)?;
+            let blob_service = blobservice::from_addr(&blob_service_addr).await?;
+            let directory_service = directoryservice::from_addr(&directory_service_addr).await?;
             let path_info_service = pathinfoservice::from_addr(
                 &path_info_service_addr,
                 blob_service.clone(),
                 directory_service.clone(),
-            )?;
+            )
+            .await?;
 
             let tasks = paths
                 .into_iter()
@@ -343,13 +345,14 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
             list_root,
             threads,
         } => {
-            let blob_service = blobservice::from_addr(&blob_service_addr)?;
-            let directory_service = directoryservice::from_addr(&directory_service_addr)?;
+            let blob_service = blobservice::from_addr(&blob_service_addr).await?;
+            let directory_service = directoryservice::from_addr(&directory_service_addr).await?;
             let path_info_service = pathinfoservice::from_addr(
                 &path_info_service_addr,
                 blob_service.clone(),
                 directory_service.clone(),
-            )?;
+            )
+            .await?;
 
             let mut fuse_daemon = tokio::task::spawn_blocking(move || {
                 let f = TvixStoreFs::new(
@@ -383,13 +386,14 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
             path_info_service_addr,
             list_root,
         } => {
-            let blob_service = blobservice::from_addr(&blob_service_addr)?;
-            let directory_service = directoryservice::from_addr(&directory_service_addr)?;
+            let blob_service = blobservice::from_addr(&blob_service_addr).await?;
+            let directory_service = directoryservice::from_addr(&directory_service_addr).await?;
             let path_info_service = pathinfoservice::from_addr(
                 &path_info_service_addr,
                 blob_service.clone(),
                 directory_service.clone(),
-            )?;
+            )
+            .await?;
 
             tokio::task::spawn_blocking(move || {
                 let fs = TvixStoreFs::new(
diff --git a/tvix/store/src/pathinfoservice/from_addr.rs b/tvix/store/src/pathinfoservice/from_addr.rs
index 01764b251be4..0f1f8d5c96a6 100644
--- a/tvix/store/src/pathinfoservice/from_addr.rs
+++ b/tvix/store/src/pathinfoservice/from_addr.rs
@@ -23,7 +23,7 @@ use url::Url;
 ///
 /// As the [PathInfoService] needs to talk to [BlobService] and [DirectoryService],
 /// these also need to be passed in.
-pub fn from_addr(
+pub async fn from_addr(
     uri: &str,
     blob_service: Arc<dyn BlobService>,
     directory_service: Arc<dyn DirectoryService>,
@@ -68,7 +68,7 @@ pub fn from_addr(
         // - In the case of unix sockets, there must be a path, but may not be a host.
         // - In the case of non-unix sockets, there must be a host, but no path.
         // Constructing the channel is handled by tvix_castore::channel::from_url.
-        let client = PathInfoServiceClient::new(tvix_castore::channel::from_url(&url)?);
+        let client = PathInfoServiceClient::new(tvix_castore::tonic::channel_from_url(&url).await?);
         Arc::new(GRPCPathInfoService::from_client(client))
     } else {
         Err(Error::StorageError(format!(
@@ -91,6 +91,8 @@ mod tests {
         static ref TMPDIR_SLED_2: TempDir = TempDir::new().unwrap();
     }
 
+    // the gRPC tests below don't fail, because we connect lazily.
+
     /// This uses a unsupported scheme.
     #[test_case("http://foo.example/test", false; "unsupported scheme")]
     /// This configures sled in temporary mode.
@@ -111,15 +113,6 @@ mod tests {
     #[test_case("memory:///", false; "memory invalid root path")]
     /// This sets a memory url path to "/foo", which is invalid.
     #[test_case("memory:///foo", false; "memory invalid root path foo")]
-    fn test_from_addr(uri_str: &str, is_ok: bool) {
-        assert_eq!(
-            from_addr(uri_str, gen_blob_service(), gen_directory_service()).is_ok(),
-            is_ok
-        )
-    }
-
-    // the gRPC tests below don't fail, because we connect lazily.
-
     /// Correct scheme to connect to a unix socket.
     #[test_case("grpc+unix:///path/to/somewhere", true; "grpc valid unix socket")]
     /// Correct scheme for unix socket, but setting a host too, which is invalid.
@@ -135,7 +128,9 @@ mod tests {
     #[tokio::test]
     async fn test_from_addr_tokio(uri_str: &str, is_ok: bool) {
         assert_eq!(
-            from_addr(uri_str, gen_blob_service(), gen_directory_service()).is_ok(),
+            from_addr(uri_str, gen_blob_service(), gen_directory_service())
+                .await
+                .is_ok(),
             is_ok
         )
     }
diff --git a/tvix/store/src/pathinfoservice/grpc.rs b/tvix/store/src/pathinfoservice/grpc.rs
index 2e58a464aa46..ef3b0b77ec54 100644
--- a/tvix/store/src/pathinfoservice/grpc.rs
+++ b/tvix/store/src/pathinfoservice/grpc.rs
@@ -180,7 +180,9 @@ mod tests {
             let url = url::Url::parse(&format!("grpc+unix://{}", socket_path.display()))
                 .expect("must parse");
             let client = PathInfoServiceClient::new(
-                tvix_castore::channel::from_url(&url).expect("must succeed"),
+                tvix_castore::tonic::channel_from_url(&url)
+                    .await
+                    .expect("must succeed"),
             );
 
             GRPCPathInfoService::from_client(client)