1 files changed, 20 insertions, 0 deletions
diff --git a/tvix/store/src/pathinfoservice/mod.rs b/tvix/store/src/pathinfoservice/mod.rs
new file mode 100644
index 000000000000..6a34e09af478
--- /dev/null
+++ b/tvix/store/src/pathinfoservice/mod.rs
@@ -0,0 +1,20 @@
+mod grpc;
+mod memory;
+mod sled;
+
+use crate::{proto, Error};
+
+pub use self::grpc::GRPCPathInfoService;
+pub use self::memory::MemoryPathInfoService;
+pub use self::sled::SledPathInfoService;
+
+/// The base trait all PathInfo services need to implement.
+/// This is a simple get and put of [proto::Directory], returning their digest.
+pub trait PathInfoService {
+    /// Retrieve a PathInfo message by the output digest.
+    fn get(&self, digest: [u8; 20]) -> Result<Option<proto::PathInfo>, Error>;
+
+    /// Store a PathInfo message. Implementations MUST call validate and reject
+    /// invalid messages.
+    fn put(&self, path_info: proto::PathInfo) -> Result<proto::PathInfo, Error>;
+}