service: fix compilation failures on macos

service/Cargo.toml

@@ -23,7 +23,6 @@ serde_json = "1.0.51"
 thiserror = "1.0"
 time = { version = "0.3.14", features = ["serde-human-readable"] }
 tokio = { version = "1.24", features = ["macros"] }
-tokio-uring = "0.4"
 
 nydus-api = { version = "0.2.2", path = "../api"}
 nydus-error = { version = "0.2.3", path = "../error" }
@@ -37,6 +36,9 @@ virtio-bindings = { version = "0.1", features = ["virtio-v5_0_0"], optional = tr
 virtio-queue = { version = "0.6.0", optional = true }
 vm-memory = { version = "0.9.0", features = ["backend-mmap"], optional = true }
 
+[target.'cfg(target_os = "linux")'.dependencies]
+tokio-uring = "0.4"
+
 [dev-dependencies]
 vmm-sys-util = "0.10.0"
 

service/src/daemon.rs

@@ -22,9 +22,8 @@ use nydus_api::BuildTimeInfo;
 use rust_fsm::*;
 use serde::{self, Serialize};
 
-use crate::blob_cache::BlobCacheMgr;
 use crate::fs_service::{FsBackendCollection, FsService};
-use crate::{Error, Result};
+use crate::{BlobCacheMgr, Error, Result};
 
 /// Nydus daemon working states.
 #[allow(clippy::upper_case_acronyms)]

service/src/lib.rs

@@ -30,25 +30,30 @@ use nydus_rafs::RafsError;
 use serde::{Deserialize, Serialize};
 use serde_json::Error as SerdeError;
 
-pub mod blob_cache;
-#[cfg(feature = "block-device")]
-pub mod block_device;
-#[cfg(feature = "block-nbd")]
-pub mod block_nbd;
 pub mod daemon;
-#[cfg(target_os = "linux")]
-mod fs_cache;
 mod fs_service;
 mod fusedev;
 mod singleton;
 pub mod upgrade;
 
-#[cfg(target_os = "linux")]
-pub use fs_cache::FsCacheHandler;
 pub use fs_service::{FsBackendCollection, FsBackendMountCmd, FsBackendUmountCmd, FsService};
 pub use fusedev::{create_fuse_daemon, FusedevDaemon};
 pub use singleton::create_daemon;
 
+#[cfg(target_os = "linux")]
+pub mod blob_cache;
+#[cfg(all(target_os = "linux", feature = "block-device"))]
+pub mod block_device;
+#[cfg(all(target_os = "linux", feature = "block-nbd"))]
+pub mod block_nbd;
+#[cfg(target_os = "linux")]
+mod fs_cache;
+
+#[cfg(target_os = "linux")]
+pub use blob_cache::BlobCacheMgr;
+#[cfg(target_os = "linux")]
+pub use fs_cache::FsCacheHandler;
+
 /// Error code related to Nydus library.
 #[derive(thiserror::Error, Debug)]
 pub enum Error {
@@ -222,6 +227,28 @@ pub trait ServiceArgs {
     fn is_present(&self, key: &str) -> bool;
 }
 
+#[cfg(not(target_os = "linux"))]
+pub struct BlobCacheMgr {}
+
+#[cfg(not(target_os = "linux"))]
+impl BlobCacheMgr {
+    pub fn new() -> Self {
+        BlobCacheMgr {}
+    }
+
+    pub fn add_blob_list(&self, _blobs: &nydus_api::BlobCacheList) -> std::io::Result<()> {
+        unimplemented!()
+    }
+
+    pub fn add_blob_entry(&self, _entry: &nydus_api::BlobCacheEntry) -> Result<()> {
+        unimplemented!()
+    }
+
+    pub fn remove_blob_entry(&self, _param: &nydus_api::BlobCacheObjectId) -> Result<()> {
+        unimplemented!()
+    }
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;

service/src/singleton.rs

@@ -13,13 +13,12 @@ use mio::Waker;
 use nydus_api::config::BlobCacheList;
 use nydus_api::BuildTimeInfo;
 
-use crate::blob_cache::BlobCacheMgr;
 use crate::daemon::{
     DaemonState, DaemonStateMachineContext, DaemonStateMachineInput, DaemonStateMachineSubscriber,
     NydusDaemon,
 };
 use crate::fs_service::FsService;
-use crate::{Error, Result};
+use crate::{BlobCacheMgr, Error, Result};
 
 #[allow(dead_code)]
 struct ServiceController {