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-rw-r--r--tvix/castore/src/directoryservice/grpc.rs5
-rw-r--r--tvix/castore/src/directoryservice/memory.rs5
-rw-r--r--tvix/castore/src/directoryservice/mod.rs5
-rw-r--r--tvix/castore/src/directoryservice/sled.rs5
-rw-r--r--tvix/castore/src/directoryservice/utils.rs7
-rw-r--r--tvix/castore/src/fs/root_nodes.rs8
-rw-r--r--tvix/castore/src/proto/grpc_blobservice_wrapper.rs6
7 files changed, 17 insertions, 24 deletions
diff --git a/tvix/castore/src/directoryservice/grpc.rs b/tvix/castore/src/directoryservice/grpc.rs
index c98708608e56..ad06cb17b668 100644
--- a/tvix/castore/src/directoryservice/grpc.rs
+++ b/tvix/castore/src/directoryservice/grpc.rs
@@ -1,11 +1,10 @@
 use std::collections::HashSet;
-use std::pin::Pin;
 
 use super::{DirectoryPutter, DirectoryService};
 use crate::proto::{self, get_directory_request::ByWhat};
 use crate::{B3Digest, Error};
 use async_stream::try_stream;
-use futures::Stream;
+use futures::stream::BoxStream;
 use tokio::spawn;
 use tokio::sync::mpsc::UnboundedSender;
 use tokio::task::JoinHandle;
@@ -106,7 +105,7 @@ impl DirectoryService for GRPCDirectoryService {
     fn get_recursive(
         &self,
         root_directory_digest: &B3Digest,
-    ) -> Pin<Box<dyn Stream<Item = Result<proto::Directory, Error>> + Send>> {
+    ) -> BoxStream<Result<proto::Directory, Error>> {
         let mut grpc_client = self.grpc_client.clone();
         let root_directory_digest = root_directory_digest.clone();
 
diff --git a/tvix/castore/src/directoryservice/memory.rs b/tvix/castore/src/directoryservice/memory.rs
index 3ba309f82927..528ffe2f2c03 100644
--- a/tvix/castore/src/directoryservice/memory.rs
+++ b/tvix/castore/src/directoryservice/memory.rs
@@ -1,7 +1,6 @@
 use crate::{proto, B3Digest, Error};
-use futures::Stream;
+use futures::stream::BoxStream;
 use std::collections::HashMap;
-use std::pin::Pin;
 use std::sync::{Arc, RwLock};
 use tonic::async_trait;
 use tracing::{instrument, warn};
@@ -73,7 +72,7 @@ impl DirectoryService for MemoryDirectoryService {
     fn get_recursive(
         &self,
         root_directory_digest: &B3Digest,
-    ) -> Pin<Box<dyn Stream<Item = Result<proto::Directory, Error>> + Send>> {
+    ) -> BoxStream<Result<proto::Directory, Error>> {
         traverse_directory(self.clone(), root_directory_digest)
     }
 
diff --git a/tvix/castore/src/directoryservice/mod.rs b/tvix/castore/src/directoryservice/mod.rs
index a82c4d785dbd..db3d5767eadd 100644
--- a/tvix/castore/src/directoryservice/mod.rs
+++ b/tvix/castore/src/directoryservice/mod.rs
@@ -1,6 +1,5 @@
 use crate::{proto, B3Digest, Error};
-use futures::Stream;
-use std::pin::Pin;
+use futures::stream::BoxStream;
 use tonic::async_trait;
 
 mod from_addr;
@@ -44,7 +43,7 @@ pub trait DirectoryService: Send + Sync {
     fn get_recursive(
         &self,
         root_directory_digest: &B3Digest,
-    ) -> Pin<Box<dyn Stream<Item = Result<proto::Directory, Error>> + Send>>;
+    ) -> BoxStream<Result<proto::Directory, Error>>;
 
     /// Allows persisting a closure of [proto::Directory], which is a graph of
     /// connected Directory messages.
diff --git a/tvix/castore/src/directoryservice/sled.rs b/tvix/castore/src/directoryservice/sled.rs
index 9e6749a753c2..9acd3854184b 100644
--- a/tvix/castore/src/directoryservice/sled.rs
+++ b/tvix/castore/src/directoryservice/sled.rs
@@ -1,10 +1,9 @@
 use crate::directoryservice::DirectoryPutter;
 use crate::proto::Directory;
 use crate::{proto, B3Digest, Error};
-use futures::Stream;
+use futures::stream::BoxStream;
 use prost::Message;
 use std::path::Path;
-use std::pin::Pin;
 use tonic::async_trait;
 use tracing::{instrument, warn};
 
@@ -99,7 +98,7 @@ impl DirectoryService for SledDirectoryService {
     fn get_recursive(
         &self,
         root_directory_digest: &B3Digest,
-    ) -> Pin<Box<(dyn Stream<Item = Result<proto::Directory, Error>> + Send + 'static)>> {
+    ) -> BoxStream<Result<proto::Directory, Error>> {
         traverse_directory(self.clone(), root_directory_digest)
     }
 
diff --git a/tvix/castore/src/directoryservice/utils.rs b/tvix/castore/src/directoryservice/utils.rs
index ad9ce2535366..341705a8db9f 100644
--- a/tvix/castore/src/directoryservice/utils.rs
+++ b/tvix/castore/src/directoryservice/utils.rs
@@ -4,19 +4,18 @@ use crate::proto;
 use crate::B3Digest;
 use crate::Error;
 use async_stream::stream;
-use futures::Stream;
+use futures::stream::BoxStream;
 use std::collections::{HashSet, VecDeque};
-use std::pin::Pin;
 use tonic::async_trait;
 use tracing::warn;
 
 /// Traverses a [proto::Directory] from the root to the children.
 ///
 /// This is mostly BFS, but directories are only returned once.
-pub fn traverse_directory<DS: DirectoryService + 'static>(
+pub fn traverse_directory<'a, DS: DirectoryService + 'static>(
     directory_service: DS,
     root_directory_digest: &B3Digest,
-) -> Pin<Box<dyn Stream<Item = Result<proto::Directory, Error>> + Send>> {
+) -> BoxStream<'a, Result<proto::Directory, Error>> {
     // The list of all directories that still need to be traversed. The next
     // element is picked from the front, new elements are enqueued at the
     // back.
diff --git a/tvix/castore/src/fs/root_nodes.rs b/tvix/castore/src/fs/root_nodes.rs
index a603fd1b37d5..6609e049a1fc 100644
--- a/tvix/castore/src/fs/root_nodes.rs
+++ b/tvix/castore/src/fs/root_nodes.rs
@@ -1,8 +1,8 @@
-use std::{collections::BTreeMap, pin::Pin};
+use std::collections::BTreeMap;
 
 use crate::{proto::node::Node, Error};
 use bytes::Bytes;
-use futures::Stream;
+use futures::stream::BoxStream;
 use tonic::async_trait;
 
 /// Provides an interface for looking up root nodes  in tvix-castore by given
@@ -15,7 +15,7 @@ pub trait RootNodes: Send + Sync {
 
     /// Lists all root CA nodes in the filesystem. An error can be returned
     /// in case listing is not allowed
-    fn list(&self) -> Pin<Box<dyn Stream<Item = Result<Node, Error>> + Send + '_>>;
+    fn list(&self) -> BoxStream<Result<Node, Error>>;
 }
 
 #[async_trait]
@@ -29,7 +29,7 @@ where
         Ok(self.as_ref().get(name).cloned())
     }
 
-    fn list(&self) -> Pin<Box<dyn Stream<Item = Result<Node, Error>> + Send + '_>> {
+    fn list(&self) -> BoxStream<Result<Node, Error>> {
         Box::pin(tokio_stream::iter(
             self.as_ref().iter().map(|(_, v)| Ok(v.clone())),
         ))
diff --git a/tvix/castore/src/proto/grpc_blobservice_wrapper.rs b/tvix/castore/src/proto/grpc_blobservice_wrapper.rs
index 063f0421ddee..f8c2341689c6 100644
--- a/tvix/castore/src/proto/grpc_blobservice_wrapper.rs
+++ b/tvix/castore/src/proto/grpc_blobservice_wrapper.rs
@@ -1,11 +1,10 @@
 use crate::blobservice::BlobService;
 use core::pin::pin;
-use futures::TryFutureExt;
+use futures::{stream::BoxStream, TryFutureExt};
 use std::{
     collections::VecDeque,
     io,
     ops::{Deref, DerefMut},
-    pin::Pin,
 };
 use tokio_stream::StreamExt;
 use tokio_util::io::ReaderStream;
@@ -86,8 +85,7 @@ where
     T: Deref<Target = dyn BlobService> + Send + Sync + 'static,
 {
     // https://github.com/tokio-rs/tokio/issues/2723#issuecomment-1534723933
-    type ReadStream =
-        Pin<Box<dyn futures::Stream<Item = Result<super::BlobChunk, Status>> + Send + 'static>>;
+    type ReadStream = BoxStream<'static, Result<super::BlobChunk, Status>>;
 
     #[instrument(skip(self))]
     async fn stat(