remove nodejs support

Cargo.lock

@@ -2755,15 +2755,6 @@ dependencies = [
  "value-bag",
 ]
 
-[[package]]
-name = "lru"
-version = "0.8.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b6e8aaa3f231bb4bd57b84b2d5dc3ae7f350265df8aa96492e0bc394a1571909"
-dependencies = [
- "hashbrown",
-]
-
 [[package]]
 name = "lru-cache"
 version = "0.1.2"
@@ -5505,7 +5496,6 @@ dependencies = [
  "futures-util",
  "generic-array",
  "getrandom 0.2.8",
- "hashbrown",
  "hashlink 0.8.1",
  "hex",
  "ifstructs",
@@ -5515,11 +5505,11 @@ dependencies = [
  "js-sys",
  "json",
  "keyring-manager",
+ "keyvaluedb",
  "keyvaluedb-sqlite",
  "keyvaluedb-web",
  "lazy_static",
  "libc",
- "lru",
  "maplit",
  "ndk 0.6.0",
  "ndk-glue",

veilid-core/Cargo.toml

@@ -58,7 +58,7 @@ digest = "0.9.0"
 rtnetlink = { version = "^0", default-features = false, optional = true }
 async-std-resolver = { version = "^0", optional = true }
 trust-dns-resolver = { version = "^0", optional = true }
-
+keyvaluedb = { path = "../external/keyvaluedb/keyvaluedb" }
 
 # Dependencies for native builds only
 # Linux, Windows, Mac, iOS, Android
@@ -72,7 +72,6 @@ async-tungstenite = { version = "^0", features = ["async-tls"] }
 maplit = "^1"
 config = { version = "^0", features = ["yaml"] }
 keyring-manager = { path = "../external/keyring-manager" }
-lru = "^0"
 async-tls = "^0.11"
 igd  = { path = "../external/rust-igd" }
 webpki = "^0"
@@ -96,8 +95,6 @@ nix = "^0"
 wasm-bindgen = "^0"
 js-sys = "^0"
 wasm-bindgen-futures = "^0"
-hashbrown = "^0"
-lru = {version = "^0", features = ["hashbrown"] }
 no-std-net = { path = "../external/no-std-net", features = ["serde"] }
 keyvaluedb-web = { path = "../external/keyvaluedb/keyvaluedb-web" }
 data-encoding = { version = "^2", default_features = false, features = ["alloc"] }

veilid-core/src/crypto/mod.rs

@@ -119,12 +119,12 @@ impl Crypto {
 
         // load caches if they are valid for this node id
         let mut db = table_store.open("crypto_caches", 1).await?;
-        let caches_valid = match db.load(0, b"node_id").await? {
+        let caches_valid = match db.load(0, b"node_id")? {
             Some(v) => v.as_slice() == node_id.bytes,
             None => false,
         };
         if caches_valid {
-            if let Some(b) = db.load(0, b"dh_cache").await? {
+            if let Some(b) = db.load(0, b"dh_cache")? {
                 let mut inner = self.inner.lock();
                 bytes_to_cache(&b, &mut inner.dh_cache);
             }
@@ -132,7 +132,7 @@ impl Crypto {
             drop(db);
             table_store.delete("crypto_caches").await?;
             db = table_store.open("crypto_caches", 1).await?;
-            db.store(0, b"node_id", &node_id.bytes).await?;
+            db.store(0, b"node_id", &node_id.bytes)?;
         }
 
         // Schedule flushing
@@ -159,7 +159,7 @@ impl Crypto {
         };
 
         let db = table_store.open("crypto_caches", 1).await?;
-        db.store(0, b"dh_cache", &cache_bytes).await?;
+        db.store(0, b"dh_cache", &cache_bytes)?;
         Ok(())
     }
 

veilid-core/src/intf/native/table_store.rs

@@ -8,6 +8,8 @@ struct TableStoreInner {
     opened: BTreeMap<String, Weak<Mutex<TableDBInner>>>,
 }
 
+/// Veilid Table Storage
+/// Database for storing key value pairs persistently across runs
 #[derive(Clone)]
 pub struct TableStore {
     config: VeilidConfig,
@@ -20,31 +22,38 @@ impl TableStore {
             opened: BTreeMap::new(),
         }
     }
-    pub fn new(config: VeilidConfig) -> Self {
+    pub(crate) fn new(config: VeilidConfig) -> Self {
         Self {
             config,
             inner: Arc::new(Mutex::new(Self::new_inner())),
         }
     }
 
-    pub async fn delete_all(&self) -> EyreResult<()> {
+    /// Delete all known tables
-        // Delete all known keys
+    pub async fn delete_all(&self) {
-        self.delete("crypto_caches").await?;
+        if let Err(e) = self.delete("crypto_caches").await {
+            error!("failed to delete 'crypto_caches': {}", e);
+        }
+        if let Err(e) = self.delete("RouteSpecStore").await {
+            error!("failed to delete 'RouteSpecStore': {}", e);
+        }
+        if let Err(e) = self.delete("routing_table").await {
+            error!("failed to delete 'routing_table': {}", e);
+        }
+    }
+
+    pub(crate) async fn init(&self) -> EyreResult<()> {
         Ok(())
     }
 
-    pub async fn init(&self) -> EyreResult<()> {
+    pub(crate) async fn terminate(&self) {
-        Ok(())
-    }
-
-    pub async fn terminate(&self) {
         assert!(
             self.inner.lock().opened.is_empty(),
             "all open databases should have been closed"
         );
     }
 
-    pub fn on_table_db_drop(&self, table: String) {
+    pub(crate) fn on_table_db_drop(&self, table: String) {
         let mut inner = self.inner.lock();
         if inner.opened.remove(&table).is_none() {
             unreachable!("should have removed an item");
@@ -82,6 +91,8 @@ impl TableStore {
         })
     }
 
+    /// Get or create a TableDB database table. If the column count is greater than an
+    /// existing TableDB's column count, the database will be upgraded to add the missing columns
     pub async fn open(&self, name: &str, column_count: u32) -> EyreResult<TableDB> {
         let table_name = self.get_table_name(name)?;
 
@@ -121,6 +132,7 @@ impl TableStore {
         Ok(table_db)
     }
 
+    /// Delete a TableDB table by name
     pub async fn delete(&self, name: &str) -> EyreResult<bool> {
         let table_name = self.get_table_name(name)?;
 

veilid-core/src/intf/table_db.rs

@@ -5,8 +5,10 @@ use serde::{Deserialize, Serialize};
 cfg_if! {
     if #[cfg(target_arch = "wasm32")] {
         use keyvaluedb_web::*;
+        use keyvaluedb::*;
     } else {
         use keyvaluedb_sqlite::*;
+        use keyvaluedb::*;
     }
 }
 
@@ -28,7 +30,7 @@ pub struct TableDB {
 }
 
 impl TableDB {
-    pub fn new(table: String, table_store: TableStore, database: Database) -> Self {
+    pub(super) fn new(table: String, table_store: TableStore, database: Database) -> Self {
         Self {
             inner: Arc::new(Mutex::new(TableDBInner {
                 table,
@@ -38,22 +40,24 @@ impl TableDB {
         }
     }
 
-    pub fn try_new_from_weak_inner(weak_inner: Weak<Mutex<TableDBInner>>) -> Option<Self> {
+    pub(super) fn try_new_from_weak_inner(weak_inner: Weak<Mutex<TableDBInner>>) -> Option<Self> {
         weak_inner.upgrade().map(|table_db_inner| Self {
             inner: table_db_inner,
         })
     }
 
-    pub fn weak_inner(&self) -> Weak<Mutex<TableDBInner>> {
+    pub(super) fn weak_inner(&self) -> Weak<Mutex<TableDBInner>> {
         Arc::downgrade(&self.inner)
     }
 
-    pub async fn get_column_count(&self) -> EyreResult<u32> {
+    /// Get the total number of columns in the TableDB
+    pub fn get_column_count(&self) -> EyreResult<u32> {
         let db = &self.inner.lock().database;
         db.num_columns().wrap_err("failed to get column count: {}")
     }
 
-    pub async fn get_keys(&self, col: u32) -> EyreResult<Vec<Box<[u8]>>> {
+    /// Get the list of keys in a column of the TableDB
+    pub fn get_keys(&self, col: u32) -> EyreResult<Vec<Box<[u8]>>> {
         let db = &self.inner.lock().database;
         let mut out: Vec<Box<[u8]>> = Vec::new();
         db.iter(col, None, &mut |kv| {
@@ -64,14 +68,25 @@ impl TableDB {
         Ok(out)
     }
 
-    pub async fn store(&self, col: u32, key: &[u8], value: &[u8]) -> EyreResult<()> {
+    /// Start a TableDB write transaction. The transaction object must be committed or rolled back before dropping.
+    pub fn transact<'a>(&'a self) -> TableDBTransaction<'a> {
+        let dbt = {
+            let db = &self.inner.lock().database;
+            db.transaction()
+        };
+        TableDBTransaction::new(self, dbt)
+    }
+
+    /// Store a key with a value in a column in the TableDB. Performs a single transaction immediately.
+    pub fn store(&self, col: u32, key: &[u8], value: &[u8]) -> EyreResult<()> {
         let db = &self.inner.lock().database;
         let mut dbt = db.transaction();
         dbt.put(col, key, value);
         db.write(dbt).wrap_err("failed to store key")
     }
 
-    pub async fn store_cbor<T>(&self, col: u32, key: &[u8], value: &T) -> EyreResult<()>
+    /// Store a key in CBOR format with a value in a column in the TableDB. Performs a single transaction immediately.
+    pub fn store_cbor<T>(&self, col: u32, key: &[u8], value: &T) -> EyreResult<()>
     where
         T: Serialize,
     {
@@ -83,12 +98,14 @@ impl TableDB {
         db.write(dbt).wrap_err("failed to store key")
     }
 
-    pub async fn load(&self, col: u32, key: &[u8]) -> EyreResult<Option<Vec<u8>>> {
+    /// Read a key from a column in the TableDB immediately.
+    pub fn load(&self, col: u32, key: &[u8]) -> EyreResult<Option<Vec<u8>>> {
         let db = &self.inner.lock().database;
         db.get(col, key).wrap_err("failed to get key")
     }
 
-    pub async fn load_cbor<T>(&self, col: u32, key: &[u8]) -> EyreResult<Option<T>>
+    /// Read a key from a column in the TableDB immediately, in CBOR format.
+    pub fn load_cbor<T>(&self, col: u32, key: &[u8]) -> EyreResult<Option<T>>
     where
         T: for<'de> Deserialize<'de>,
     {
@@ -104,7 +121,8 @@ impl TableDB {
         Ok(Some(obj))
     }
 
-    pub async fn delete(&self, col: u32, key: &[u8]) -> EyreResult<bool> {
+    /// Delete key with from a column in the TableDB
+    pub fn delete(&self, col: u32, key: &[u8]) -> EyreResult<bool> {
         let db = &self.inner.lock().database;
         let found = db.get(col, key).wrap_err("failed to get key")?;
         match found {
@@ -118,3 +136,66 @@ impl TableDB {
         }
     }
 }
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+/// A TableDB transaction
+/// Atomically commits a group of writes or deletes to the TableDB
+pub struct TableDBTransaction<'a> {
+    db: &'a TableDB,
+    dbt: Option<DBTransaction>,
+    _phantom: core::marker::PhantomData<&'a ()>,
+}
+
+impl<'a> TableDBTransaction<'a> {
+    fn new(db: &'a TableDB, dbt: DBTransaction) -> Self {
+        Self {
+            db,
+            dbt: Some(dbt),
+            _phantom: Default::default(),
+        }
+    }
+
+    /// Commit the transaction. Performs all actions atomically.
+    pub fn commit(mut self) -> EyreResult<()> {
+        self.db
+            .inner
+            .lock()
+            .database
+            .write(self.dbt.take().unwrap())
+            .wrap_err("commit failed")
+    }
+
+    /// Rollback the transaction. Does nothing to the TableDB.
+    pub fn rollback(mut self) {
+        self.dbt = None;
+    }
+
+    /// Store a key with a value in a column in the TableDB
+    pub fn store(&mut self, col: u32, key: &[u8], value: &[u8]) {
+        self.dbt.as_mut().unwrap().put(col, key, value);
+    }
+
+    /// Store a key in CBOR format with a value in a column in the TableDB
+    pub fn store_cbor<T>(&mut self, col: u32, key: &[u8], value: &T) -> EyreResult<()>
+    where
+        T: Serialize,
+    {
+        let v = serde_cbor::to_vec(value).wrap_err("couldn't store as CBOR")?;
+        self.dbt.as_mut().unwrap().put(col, key, v.as_slice());
+        Ok(())
+    }
+
+    /// Delete key with from a column in the TableDB
+    pub fn delete(&mut self, col: u32, key: &[u8]) {
+        self.dbt.as_mut().unwrap().delete(col, key);
+    }
+}
+
+impl<'a> Drop for TableDBTransaction<'a> {
+    fn drop(&mut self) {
+        if self.dbt.is_some() {
+            warn!("Dropped transaction without commit or rollback");
+        }
+    }
+}

veilid-core/src/intf/wasm/protected_store.rs

@@ -3,20 +3,11 @@ use crate::xx::*;
 use crate::*;
 use data_encoding::BASE64URL_NOPAD;
 use js_sys::*;
+use send_wrapper::*;
+use serde::{Deserialize, Serialize};
 use wasm_bindgen_futures::*;
 use web_sys::*;
 
-#[wasm_bindgen]
-extern "C" {
-    #[wasm_bindgen(catch, js_name = setPassword, js_namespace = ["global", "wasmhost", "keytar"])]
-    fn keytar_setPassword(service: &str, account: &str, password: &str)
-        -> Result<Promise, JsValue>;
-    #[wasm_bindgen(catch, js_name = getPassword, js_namespace = ["global", "wasmhost", "keytar"])]
-    fn keytar_getPassword(service: &str, account: &str) -> Result<Promise, JsValue>;
-    #[wasm_bindgen(catch, js_name = deletePassword, js_namespace = ["global", "wasmhost", "keytar"])]
-    fn keytar_deletePassword(service: &str, account: &str) -> Result<Promise, JsValue>;
-}
-
 #[derive(Clone)]
 pub struct ProtectedStore {
     config: VeilidConfig,
@@ -71,33 +62,9 @@ impl ProtectedStore {
         }
     }
 
-    #[instrument(level = "trace", skip(self, value), ret, err)]
+    //#[instrument(level = "trace", skip(self, value), ret, err)]
     pub async fn save_user_secret_string(&self, key: &str, value: &str) -> EyreResult<bool> {
-        if is_nodejs() {
+        if is_browser() {
-            let prev = match JsFuture::from(
-                keytar_getPassword(self.keyring_name().as_str(), key)
-                    .map_err(map_jsvalue_error)
-                    .wrap_err("exception thrown")?,
-            )
-            .await
-            {
-                Ok(v) => v.is_truthy(),
-                Err(_) => false,
-            };
-
-            match JsFuture::from(
-                keytar_setPassword(self.keyring_name().as_str(), key, value)
-                    .map_err(map_jsvalue_error)
-                    .wrap_err("exception thrown")?,
-            )
-            .await
-            {
-                Ok(_) => {}
-                Err(_) => bail!("Failed to set password"),
-            }
-
-            Ok(prev)
-        } else if is_browser() {
             let win = match window() {
                 Some(w) => w,
                 None => {
@@ -139,24 +106,7 @@ impl ProtectedStore {
 
     #[instrument(level = "trace", skip(self), err)]
     pub async fn load_user_secret_string(&self, key: &str) -> EyreResult<Option<String>> {
-        if is_nodejs() {
+        if is_browser() {
-            let prev = match JsFuture::from(
-                keytar_getPassword(self.keyring_name().as_str(), key)
-                    .map_err(map_jsvalue_error)
-                    .wrap_err("exception thrown")?,
-            )
-            .await
-            {
-                Ok(p) => p,
-                Err(_) => JsValue::UNDEFINED,
-            };
-
-            if prev.is_undefined() || prev.is_null() {
-                return Ok(None);
-            }
-
-            Ok(prev.as_string())
-        } else if is_browser() {
             let win = match window() {
                 Some(w) => w,
                 None => {
@@ -252,18 +202,7 @@ impl ProtectedStore {
 
     #[instrument(level = "trace", skip(self), ret, err)]
     pub async fn remove_user_secret(&self, key: &str) -> EyreResult<bool> {
-        if is_nodejs() {
+        if is_browser() {
-            match JsFuture::from(
-                keytar_deletePassword(self.keyring_name().as_str(), key)
-                    .map_err(map_jsvalue_error)
-                    .wrap_err("exception thrown")?,
-            )
-            .await
-            {
-                Ok(v) => Ok(v.is_truthy()),
-                Err(_) => bail!("Failed to delete"),
-            }
-        } else if is_browser() {
             let win = match window() {
                 Some(w) => w,
                 None => {

veilid-core/src/intf/wasm/system.rs

@@ -19,10 +19,8 @@ extern "C" {
 pub fn get_timestamp() -> u64 {
     if utils::is_browser() {
         return (Date::now() * 1000.0f64) as u64;
-    } else if utils::is_nodejs() {
-        return (Date::now() * 1000.0f64) as u64;
     } else {
-        panic!("WASM requires browser or nodejs environment");
+        panic!("WASM requires browser environment");
     }
 }
 
@@ -85,18 +83,22 @@ pub fn spawn<Out>(future: impl Future<Output = Out> + Send + 'static) -> MustJoi
 where
     Out: Send + 'static,
 {
-    MustJoinHandle::new(Bindgen
+    MustJoinHandle::new(
-        .spawn_handle(future)
+        Bindgen
-        .expect("wasm-bindgen-futures spawn should never error out"))
+            .spawn_handle(future)
+            .expect("wasm-bindgen-futures spawn should never error out"),
+    )
 }
 
 pub fn spawn_local<Out>(future: impl Future<Output = Out> + 'static) -> MustJoinHandle<Out>
 where
     Out: 'static,
 {
-    MustJoinHandle::new(Bindgen
+    MustJoinHandle::new(
-        .spawn_handle_local(future)
+        Bindgen
-        .expect("wasm-bindgen-futures spawn_local should never error out"))
+            .spawn_handle_local(future)
+            .expect("wasm-bindgen-futures spawn_local should never error out"),
+    )
 }
 
 // pub fn spawn_with_local_set<Out>(
@@ -114,10 +116,10 @@ where
 {
     Bindgen
         .spawn_handle_local(future)
-        .expect("wasm-bindgen-futures spawn_local should never error out").detach()
+        .expect("wasm-bindgen-futures spawn_local should never error out")
+        .detach()
 }
 
-
 pub fn interval<F, FUT>(freq_ms: u32, callback: F) -> SendPinBoxFuture<()>
 where
     F: Fn() -> FUT + Send + Sync + 'static,
@@ -160,12 +162,12 @@ pub async fn get_outbound_relay_peer() -> Option<crate::veilid_api::PeerInfo> {
 
 // pub async fn get_pwa_web_server_config() -> {
 //     if utils::is_browser() {
-        
+
 //         let win = window().unwrap();
 //         let doc = win.document().unwrap();
 //         let html_document = document.dyn_into::<web_sys::HtmlDocument>().unwrap();
 //         let cookie = html_document.cookie().unwrap();
-        
+
 //         // let wait_millis = if millis > u32::MAX {
 //         //     i32::MAX
 //         // } else {
@@ -177,22 +179,14 @@ pub async fn get_outbound_relay_peer() -> Option<crate::veilid_api::PeerInfo> {
 //         //         .unwrap();
 //         // });
 
-//         // JsFuture::from(promise).await.unwrap();
-//     } else if utils::is_nodejs() {
-//         // let promise = Promise::new(&mut |yes, _| {
-//         //     nodejs_global_set_timeout_with_callback_and_timeout_and_arguments_0(&yes, millis)
-//         //         .unwrap();
-//         // });
-
 //         // JsFuture::from(promise).await.unwrap();
 //     } else {
-//         panic!("WASM requires browser or nodejs environment");
+//         panic!("WASM requires browser environment");
-//     }   
+//     }
 // }
 
-
 pub async fn txt_lookup<S: AsRef<str>>(_host: S) -> EyreResult<Vec<String>> {
-    bail!("wasm does not support txt lookup")   
+    bail!("wasm does not support txt lookup")
 }
 
 pub async fn ptr_lookup(_ip_addr: IpAddr) -> EyreResult<String> {

veilid-core/src/intf/wasm/table_store.rs

@@ -22,7 +22,7 @@ impl TableStore {
             opened: BTreeMap::new(),
         }
     }
-    pub fn new(config: VeilidConfig) -> Self {
+    pub(crate) fn new(config: VeilidConfig) -> Self {
         Self {
             config,
             inner: Arc::new(Mutex::new(Self::new_inner())),
@@ -30,12 +30,25 @@ impl TableStore {
         }
     }
 
-    pub async fn init(&self) -> EyreResult<()> {
+    /// Delete all known tables
+    pub async fn delete_all(&self) {
+        if let Err(e) = self.delete("crypto_caches").await {
+            error!("failed to delete 'crypto_caches': {}", e);
+        }
+        if let Err(e) = self.delete("RouteSpecStore").await {
+            error!("failed to delete 'RouteSpecStore': {}", e);
+        }
+        if let Err(e) = self.delete("routing_table").await {
+            error!("failed to delete 'routing_table': {}", e);
+        }
+    }
+
+    pub(crate) async fn init(&self) -> EyreResult<()> {
         let _async_guard = self.async_lock.lock().await;
         Ok(())
     }
 
-    pub async fn terminate(&self) {
+    pub(crate) async fn terminate(&self) {
         let _async_guard = self.async_lock.lock().await;
         assert!(
             self.inner.lock().opened.len() == 0,
@@ -43,7 +56,7 @@ impl TableStore {
         );
     }
 
-    pub fn on_table_db_drop(&self, table: String) {
+    pub(crate) fn on_table_db_drop(&self, table: String) {
         let mut inner = self.inner.lock();
         match inner.opened.remove(&table) {
             Some(_) => (),
@@ -69,12 +82,14 @@ impl TableStore {
         })
     }
 
+    /// Get or create a TableDB database table. If the column count is greater than an
+    /// existing TableDB's column count, the database will be upgraded to add the missing columns
     pub async fn open(&self, name: &str, column_count: u32) -> EyreResult<TableDB> {
         let _async_guard = self.async_lock.lock().await;
         let table_name = self.get_table_name(name)?;
 
         {
-            let mut inner = self.inner.lock();        
+            let mut inner = self.inner.lock();
             if let Some(table_db_weak_inner) = inner.opened.get(&table_name) {
                 match TableDB::try_new_from_weak_inner(table_db_weak_inner.clone()) {
                     Some(tdb) => {
@@ -89,7 +104,10 @@ impl TableStore {
         let db = Database::open(table_name.clone(), column_count)
             .await
             .wrap_err("failed to open tabledb")?;
-        info!("opened table store '{}' with table name '{:?}' with {} columns", name, table_name, column_count);
+        info!(
+            "opened table store '{}' with table name '{:?}' with {} columns",
+            name, table_name, column_count
+        );
 
         let table_db = TableDB::new(table_name.clone(), self.clone(), db);
 
@@ -101,11 +119,12 @@ impl TableStore {
         Ok(table_db)
     }
 
+    /// Delete a TableDB table by name
     pub async fn delete(&self, name: &str) -> EyreResult<bool> {
         let _async_guard = self.async_lock.lock().await;
         trace!("TableStore::delete {}", name);
         let table_name = self.get_table_name(name)?;
-        
+
         {
             let inner = self.inner.lock();
             if inner.opened.contains_key(&table_name) {
@@ -117,9 +136,7 @@ impl TableStore {
             }
         }
 
-        if utils::is_nodejs() {
+        if utils::is_browser() {
-            unimplemented!();
-        } else if utils::is_browser() {
             let out = match Database::delete(table_name.clone()).await {
                 Ok(_) => true,
                 Err(_) => false,

veilid-core/src/intf/wasm/utils/mod.rs

@@ -15,21 +15,6 @@ extern "C" {
     pub fn alert(s: &str);
 }
 
-pub fn is_nodejs() -> bool {
-    static CACHE: AtomicI8 = AtomicI8::new(-1);
-    let cache = CACHE.load(Ordering::Relaxed);
-    if cache != -1 {
-        return cache != 0;
-    }
-
-    let res = js_sys::eval("process.release.name === 'node'")
-        .map(|res| res.is_truthy())
-        .unwrap_or_default();
-
-    CACHE.store(res as i8, Ordering::Relaxed);
-    res
-}
-
 pub fn is_browser() -> bool {
     static CACHE: AtomicI8 = AtomicI8::new(-1);
     let cache = CACHE.load(Ordering::Relaxed);
@@ -60,24 +45,6 @@ pub fn is_browser() -> bool {
 //     res
 // }
 
-// pub fn node_require(module: &str) -> JsValue {
-//     if !is_nodejs() {
-//         return JsValue::UNDEFINED;
-//     }
-
-//     let mut home = env!("CARGO_MANIFEST_DIR");
-//     if home.len() == 0 {
-//         home = ".";
-//     }
-
-//     match js_sys::eval(format!("require(\"{}/{}\")", home, module).as_str()) {
-//         Ok(v) => v,
-//         Err(e) => {
-//             panic!("node_require failed: {:?}", e);
-//         }
-//     }
-// }
-
 #[derive(ThisError, Debug, Clone, Eq, PartialEq)]
 #[error("JsValue error")]
 pub struct JsValueError(String);

veilid-core/src/routing_table/bucket.rs

@@ -8,6 +8,8 @@ pub struct Bucket {
 }
 pub(super) type EntriesIter<'a> = alloc::collections::btree_map::Iter<'a, DHTKey, Arc<BucketEntry>>;
 
+type BucketData = (Vec<(DHTKey, Vec<u8>)>, Option<DHTKey>);
+
 fn state_ordering(state: BucketEntryState) -> usize {
     match state {
         BucketEntryState::Dead => 0,
@@ -25,6 +27,32 @@ impl Bucket {
         }
     }
 
+    pub(super) fn load_bucket(&mut self, data: &[u8]) -> EyreResult<()> {
+        let bucket_data: BucketData =
+            serde_cbor::from_slice::<BucketData>(data).wrap_err("failed to deserialize bucket")?;
+
+        for (k, d) in bucket_data.0 {
+            let entryinner = serde_cbor::from_slice::<BucketEntryInner>(&d)
+                .wrap_err("failed to deserialize bucket entry")?;
+            self.entries
+                .insert(k, Arc::new(BucketEntry::new_with_inner(entryinner)));
+        }
+
+        self.newest_entry = bucket_data.1;
+
+        Ok(())
+    }
+    pub(super) fn save_bucket(&self) -> EyreResult<Vec<u8>> {
+        let mut entry_vec = Vec::new();
+        for (k, v) in &self.entries {
+            let entry_bytes = v.with_mut_inner(|e| serde_cbor::to_vec(e))?;
+            entry_vec.push((*k, entry_bytes));
+        }
+        let bucket_data: BucketData = (entry_vec, self.newest_entry.clone());
+        let out = serde_cbor::to_vec(&bucket_data)?;
+        Ok(out)
+    }
+
     pub(super) fn add_entry(&mut self, node_id: DHTKey) -> NodeRef {
         log_rtab!("Node added: {}", node_id.encode());
 

veilid-core/src/routing_table/bucket_entry.rs

@@ -1,5 +1,6 @@
 use super::*;
 use core::sync::atomic::{AtomicU32, Ordering};
+use serde::{Deserialize, Serialize};
 
 /// Reliable pings are done with increased spacing between pings
 
@@ -42,7 +43,7 @@ pub enum BucketEntryState {
 struct LastConnectionKey(ProtocolType, AddressType);
 
 /// Bucket entry information specific to the LocalNetwork RoutingDomain
-#[derive(Debug)]
+#[derive(Debug, Serialize, Deserialize)]
 pub struct BucketEntryPublicInternet {
     /// The PublicInternet node info
     signed_node_info: Option<Box<SignedNodeInfo>>,
@@ -53,7 +54,7 @@ pub struct BucketEntryPublicInternet {
 }
 
 /// Bucket entry information specific to the LocalNetwork RoutingDomain
-#[derive(Debug)]
+#[derive(Debug, Serialize, Deserialize)]
 pub struct BucketEntryLocalNetwork {
     /// The LocalNetwork node info
     signed_node_info: Option<Box<SignedNodeInfo>>,
@@ -63,19 +64,24 @@ pub struct BucketEntryLocalNetwork {
     node_status: Option<LocalNetworkNodeStatus>,
 }
 
-#[derive(Debug)]
+#[derive(Debug, Serialize, Deserialize)]
 pub struct BucketEntryInner {
     min_max_version: Option<(u8, u8)>,
     updated_since_last_network_change: bool,
+    #[serde(skip)]
     last_connections: BTreeMap<LastConnectionKey, (ConnectionDescriptor, u64)>,
     public_internet: BucketEntryPublicInternet,
     local_network: BucketEntryLocalNetwork,
     peer_stats: PeerStats,
+    #[serde(skip)]
     latency_stats_accounting: LatencyStatsAccounting,
+    #[serde(skip)]
     transfer_stats_accounting: TransferStatsAccounting,
     #[cfg(feature = "tracking")]
+    #[serde(skip)]
     next_track_id: usize,
     #[cfg(feature = "tracking")]
+    #[serde(skip)]
     node_ref_tracks: HashMap<usize, backtrace::Backtrace>,
 }
 
@@ -657,6 +663,13 @@ impl BucketEntry {
         }
     }
 
+    pub(super) fn new_with_inner(inner: BucketEntryInner) -> Self {
+        Self {
+            ref_count: AtomicU32::new(0),
+            inner: RwLock::new(inner),
+        }
+    }
+
     // Note, that this requires -also- holding the RoutingTable read lock, as an
     // immutable reference to RoutingTableInner must be passed in to get this
     // This ensures that an operation on the routing table can not change entries

veilid-core/src/routing_table/mod.rs

@@ -154,6 +154,20 @@ impl RoutingTable {
     pub async fn init(&self) -> EyreResult<()> {
         debug!("starting routing table init");
 
+        // Set up routing buckets
+        {
+            let mut inner = self.inner.write();
+            inner.init_buckets(self.clone());
+        }
+
+        // Load bucket entries from table db if possible
+        debug!("loading routing table entries");
+        if let Err(e) = self.load_buckets().await {
+            log_rtab!(warn "Error loading buckets from storage: {}. Resetting.", e);
+            let mut inner = self.inner.write();
+            inner.init_buckets(self.clone());
+        }
+
         // Set up routespecstore
         debug!("starting route spec store init");
         let route_spec_store = match RouteSpecStore::load(self.clone()).await {
@@ -165,10 +179,10 @@ impl RoutingTable {
         };
         debug!("finished route spec store init");
 
-        let mut inner = self.inner.write();
+        {
-        inner.init(self.clone())?;
+            let mut inner = self.inner.write();
-
+            inner.route_spec_store = Some(route_spec_store);
-        inner.route_spec_store = Some(route_spec_store);
+        }
 
         debug!("finished routing table init");
         Ok(())
@@ -188,6 +202,12 @@ impl RoutingTable {
             error!("kick_buckets_task not stopped: {}", e);
         }
 
+        // Load bucket entries from table db if possible
+        debug!("saving routing table entries");
+        if let Err(e) = self.save_buckets().await {
+            error!("failed to save routing table entries: {}", e);
+        }
+
         debug!("saving route spec store");
         let rss = {
             let mut inner = self.inner.write();
@@ -201,12 +221,67 @@ impl RoutingTable {
         debug!("shutting down routing table");
 
         let mut inner = self.inner.write();
-        inner.terminate();
         *inner = RoutingTableInner::new(self.unlocked_inner.clone());
 
         debug!("finished routing table terminate");
     }
 
+    async fn save_buckets(&self) -> EyreResult<()> {
+        // Serialize all entries
+        let mut bucketvec: Vec<Vec<u8>> = Vec::new();
+        {
+            let inner = &*self.inner.read();
+            for bucket in &inner.buckets {
+                bucketvec.push(bucket.save_bucket()?)
+            }
+        }
+        let table_store = self.network_manager().table_store();
+        let tdb = table_store.open("routing_table", 1).await?;
+        let bucket_count = bucketvec.len();
+        let mut dbx = tdb.transact();
+        if let Err(e) = dbx.store_cbor(0, b"bucket_count", &bucket_count) {
+            dbx.rollback();
+            return Err(e);
+        }
+
+        for (n, b) in bucketvec.iter().enumerate() {
+            dbx.store(0, format!("bucket_{}", n).as_bytes(), b)
+        }
+        dbx.commit()?;
+        Ok(())
+    }
+
+    async fn load_buckets(&self) -> EyreResult<()> {
+        // Deserialize all entries
+        let inner = &mut *self.inner.write();
+
+        let tstore = self.network_manager().table_store();
+        let tdb = tstore.open("routing_table", 1).await?;
+        let Some(bucket_count): Option<usize> = tdb.load_cbor(0, b"bucket_count")? else {
+            log_rtab!(debug "no bucket count in saved routing table");
+            return Ok(());
+        };
+        if bucket_count != inner.buckets.len() {
+            // Must have the same number of buckets
+            warn!("bucket count is different, not loading routing table");
+            return Ok(());
+        }
+        let mut bucketdata_vec: Vec<Vec<u8>> = Vec::new();
+        for n in 0..bucket_count {
+            let Some(bucketdata): Option<Vec<u8>> =
+                tdb.load(0, format!("bucket_{}", n).as_bytes())? else {
+                    warn!("bucket data not loading, skipping loading routing table");
+                    return Ok(());
+                };
+            bucketdata_vec.push(bucketdata);
+        }
+        for n in 0..bucket_count {
+            inner.buckets[n].load_bucket(&bucketdata_vec[n])?;
+        }
+
+        Ok(())
+    }
+
     /// Set up the local network routing domain with our local routing table configuration
     pub fn configure_local_network_routing_domain(&self, local_networks: Vec<(IpAddr, IpAddr)>) {
         log_net!(debug "configure_local_network_routing_domain: {:#?}", local_networks);

veilid-core/src/routing_table/route_spec_store.rs

@@ -225,7 +225,23 @@ impl RouteSpecStore {
         let table_store = routing_table.network_manager().table_store();
         let rsstdb = table_store.open("RouteSpecStore", 1).await?;
         let mut content: RouteSpecStoreContent =
-            rsstdb.load_cbor(0, b"content").await?.unwrap_or_default();
+            rsstdb.load_cbor(0, b"content")?.unwrap_or_default();
+
+        // Look up all route hop noderefs since we can't serialize those
+        let mut dead_keys = Vec::new();
+        for (k, rsd) in &mut content.details {
+            for h in &rsd.hops {
+                let Some(nr) = routing_table.lookup_node_ref(*h) else {
+                    dead_keys.push(*k);
+                    break;
+                };
+                rsd.hop_node_refs.push(nr);
+            }
+        }
+        for k in dead_keys {
+            log_rtab!(debug "no entry, killing off private route: {}", k.encode());
+            content.details.remove(&k);
+        }
 
         // Load secrets from pstore
         let pstore = routing_table.network_manager().protected_store();
@@ -280,7 +296,7 @@ impl RouteSpecStore {
             .network_manager()
             .table_store();
         let rsstdb = table_store.open("RouteSpecStore", 1).await?;
-        rsstdb.store_cbor(0, b"content", &content).await?;
+        rsstdb.store_cbor(0, b"content", &content)?;
 
         // // Keep secrets in protected store as well
         let pstore = self
@@ -1168,10 +1184,9 @@ impl RouteSpecStore {
 
         let mut buffer = vec![];
         capnp::serialize_packed::write_message(&mut buffer, &pr_message)
+            .map_err(RPCError::internal)
             .wrap_err("failed to convert builder to vec")?;
         Ok(buffer)
-
-        //    builder_to_vec(pr_message).wrap_err("failed to convert builder to vec")
     }
 
     /// Convert binary blob to private route
@@ -1180,11 +1195,12 @@ impl RouteSpecStore {
             blob.as_slice(),
             capnp::message::ReaderOptions::new(),
         )
+        .map_err(RPCError::internal)
         .wrap_err("failed to make message reader")?;
 
-        //let reader = ::capnp::message::Reader::new(RPCMessageData::new(blob), Default::default());
         let pr_reader = reader
             .get_root::<veilid_capnp::private_route::Reader>()
+            .map_err(RPCError::internal)
             .wrap_err("failed to make reader for private_route")?;
         decode_private_route(&pr_reader).wrap_err("failed to decode private route")
     }

veilid-core/src/routing_table/routing_table_inner.rs

@@ -323,19 +323,16 @@ impl RoutingTableInner {
         }
     }
 
-    pub fn init(&mut self, routing_table: RoutingTable) -> EyreResult<()> {
+    pub fn init_buckets(&mut self, routing_table: RoutingTable) {
         // Size the buckets (one per bit)
+        self.buckets.clear();
         self.buckets.reserve(DHT_KEY_LENGTH * 8);
         for _ in 0..DHT_KEY_LENGTH * 8 {
             let bucket = Bucket::new(routing_table.clone());
             self.buckets.push(bucket);
         }
-
-        Ok(())
     }
 
-    pub fn terminate(&mut self) {}
-
     pub fn configure_local_network_routing_domain(
         &mut self,
         local_networks: Vec<(IpAddr, IpAddr)>,

veilid-core/src/tests/common/test_table_store.rs

@@ -59,78 +59,67 @@ pub async fn test_store_delete_load(ts: TableStore) {
     );
 
     assert_eq!(
-        db.load(0, b"foo").await.unwrap(),
+        db.load(0, b"foo").unwrap(),
         None,
         "should not load missing key"
     );
     assert!(
-        db.store(1, b"foo", b"1234567890").await.is_ok(),
+        db.store(1, b"foo", b"1234567890").is_ok(),
         "should store new key"
     );
     assert_eq!(
-        db.load(0, b"foo").await.unwrap(),
+        db.load(0, b"foo").unwrap(),
         None,
         "should not load missing key"
     );
-    assert_eq!(
+    assert_eq!(db.load(1, b"foo").unwrap(), Some(b"1234567890".to_vec()));
-        db.load(1, b"foo").await.unwrap(),
-        Some(b"1234567890".to_vec())
-    );
 
     assert!(
-        db.store(1, b"bar", b"FNORD").await.is_ok(),
+        db.store(1, b"bar", b"FNORD").is_ok(),
         "should store new key"
     );
     assert!(
-        db.store(0, b"bar", b"ABCDEFGHIJKLMNOPQRSTUVWXYZ")
+        db.store(0, b"bar", b"ABCDEFGHIJKLMNOPQRSTUVWXYZ").is_ok(),
-            .await
-            .is_ok(),
         "should store new key"
     );
     assert!(
-        db.store(2, b"bar", b"FNORD").await.is_ok(),
+        db.store(2, b"bar", b"FNORD").is_ok(),
         "should store new key"
     );
     assert!(
-        db.store(2, b"baz", b"QWERTY").await.is_ok(),
+        db.store(2, b"baz", b"QWERTY").is_ok(),
         "should store new key"
     );
     assert!(
-        db.store(2, b"bar", b"QWERTYUIOP").await.is_ok(),
+        db.store(2, b"bar", b"QWERTYUIOP").is_ok(),
         "should store new key"
     );
 
-    assert_eq!(db.load(1, b"bar").await.unwrap(), Some(b"FNORD".to_vec()));
+    assert_eq!(db.load(1, b"bar").unwrap(), Some(b"FNORD".to_vec()));
     assert_eq!(
-        db.load(0, b"bar").await.unwrap(),
+        db.load(0, b"bar").unwrap(),
         Some(b"ABCDEFGHIJKLMNOPQRSTUVWXYZ".to_vec())
     );
-    assert_eq!(
+    assert_eq!(db.load(2, b"bar").unwrap(), Some(b"QWERTYUIOP".to_vec()));
-        db.load(2, b"bar").await.unwrap(),
+    assert_eq!(db.load(2, b"baz").unwrap(), Some(b"QWERTY".to_vec()));
-        Some(b"QWERTYUIOP".to_vec())
-    );
-    assert_eq!(db.load(2, b"baz").await.unwrap(), Some(b"QWERTY".to_vec()));
 
-    assert_eq!(db.delete(1, b"bar").await.unwrap(), true);
+    assert_eq!(db.delete(1, b"bar").unwrap(), true);
-    assert_eq!(db.delete(1, b"bar").await.unwrap(), false);
+    assert_eq!(db.delete(1, b"bar").unwrap(), false);
     assert!(
-        db.delete(4, b"bar").await.is_err(),
+        db.delete(4, b"bar").is_err(),
         "can't delete from column that doesn't exist"
     );
 
     drop(db);
     let db = ts.open("test", 3).await.expect("should have opened");
 
-    assert_eq!(db.load(1, b"bar").await.unwrap(), None);
+    assert_eq!(db.load(1, b"bar").unwrap(), None);
     assert_eq!(
-        db.load(0, b"bar").await.unwrap(),
+        db.load(0, b"bar").unwrap(),
         Some(b"ABCDEFGHIJKLMNOPQRSTUVWXYZ".to_vec())
     );
-    assert_eq!(
+    assert_eq!(db.load(2, b"bar").unwrap(), Some(b"QWERTYUIOP".to_vec()));
-        db.load(2, b"bar").await.unwrap(),
+    assert_eq!(db.load(2, b"baz").unwrap(), Some(b"QWERTY".to_vec()));
-        Some(b"QWERTYUIOP".to_vec())
-    );
-    assert_eq!(db.load(2, b"baz").await.unwrap(), Some(b"QWERTY".to_vec()));
 }
 
 pub async fn test_cbor(ts: TableStore) {
@@ -140,11 +129,11 @@ pub async fn test_cbor(ts: TableStore) {
     let db = ts.open("test", 3).await.expect("should have opened");
     let (dht_key, _) = generate_secret();
 
-    assert!(db.store_cbor(0, b"asdf", &dht_key).await.is_ok());
+    assert!(db.store_cbor(0, b"asdf", &dht_key).is_ok());
 
-    assert_eq!(db.load_cbor::<DHTKey>(0, b"qwer").await.unwrap(), None);
+    assert_eq!(db.load_cbor::<DHTKey>(0, b"qwer").unwrap(), None);
 
-    let d = match db.load_cbor::<DHTKey>(0, b"asdf").await {
+    let d = match db.load_cbor::<DHTKey>(0, b"asdf") {
         Ok(x) => x,
         Err(e) => {
             panic!("couldn't decode cbor: {}", e);
@@ -153,12 +142,12 @@ pub async fn test_cbor(ts: TableStore) {
     assert_eq!(d, Some(dht_key), "keys should be equal");
 
     assert!(
-        db.store(1, b"foo", b"1234567890").await.is_ok(),
+        db.store(1, b"foo", b"1234567890").is_ok(),
         "should store new key"
     );
 
     assert!(
-        db.load_cbor::<DHTKey>(1, b"foo").await.is_err(),
+        db.load_cbor::<DHTKey>(1, b"foo").is_err(),
         "should fail to load cbor"
     );
 }

veilid-core/src/tests/common/test_veilid_config.rs

@@ -203,11 +203,11 @@ fn config_callback(key: String) -> ConfigCallbackReturn {
         "network.routing_table.limit_attached_good" => Ok(Box::new(8u32)),
         "network.routing_table.limit_attached_weak" => Ok(Box::new(4u32)),
         "network.rpc.concurrency" => Ok(Box::new(2u32)),
-        "network.rpc.queue_size" => Ok(Box::new(128u32)),
+        "network.rpc.queue_size" => Ok(Box::new(1024u32)),
         "network.rpc.max_timestamp_behind_ms" => Ok(Box::new(Some(10_000u32))),
         "network.rpc.max_timestamp_ahead_ms" => Ok(Box::new(Some(10_000u32))),
         "network.rpc.timeout_ms" => Ok(Box::new(10_000u32)),
-        "network.rpc.max_route_hop_count" => Ok(Box::new(7u8)),
+        "network.rpc.max_route_hop_count" => Ok(Box::new(4u8)),
         "network.rpc.default_route_hop_count" => Ok(Box::new(2u8)),
         "network.dht.resolve_node_timeout_ms" => Ok(Box::new(Option::<u32>::None)),
         "network.dht.resolve_node_count" => Ok(Box::new(20u32)),
@@ -323,9 +323,9 @@ pub async fn test_config() {
     assert_eq!(inner.network.bootstrap, Vec::<String>::new());
     assert_eq!(inner.network.bootstrap_nodes, Vec::<String>::new());
     assert_eq!(inner.network.rpc.concurrency, 2u32);
-    assert_eq!(inner.network.rpc.queue_size, 128u32);
+    assert_eq!(inner.network.rpc.queue_size, 1024u32);
     assert_eq!(inner.network.rpc.timeout_ms, 10_000u32);
-    assert_eq!(inner.network.rpc.max_route_hop_count, 7u8);
+    assert_eq!(inner.network.rpc.max_route_hop_count, 4u8);
     assert_eq!(inner.network.rpc.default_route_hop_count, 2u8);
     assert_eq!(inner.network.routing_table.limit_over_attached, 64u32);
     assert_eq!(inner.network.routing_table.limit_fully_attached, 32u32);

veilid-core/src/veilid_api/debug.rs

@@ -55,10 +55,7 @@ fn get_route_id(rss: RouteSpecStore) -> impl Fn(&str) -> Option<DHTKey> {
 }
 
 fn get_safety_selection(text: &str, rss: RouteSpecStore) -> Option<SafetySelection> {
-    if text.len() == 0 {
+    if text.len() != 0 && &text[0..1] == "-" {
-        return None;
-    }
-    if &text[0..1] == "-" {
         // Unsafe
         let text = &text[1..];
         let seq = get_sequencing(text).unwrap_or(Sequencing::NoPreference);

veilid-core/src/xx/mod.rs

@@ -41,61 +41,42 @@ pub type PinBoxFutureLifetime<'a, T> = PinBox<dyn Future<Output = T> + 'a>;
 pub type SendPinBoxFuture<T> = PinBox<dyn Future<Output = T> + Send + 'static>;
 pub type SendPinBoxFutureLifetime<'a, T> = PinBox<dyn Future<Output = T> + Send + 'a>;
 
+pub use std::borrow::{Cow, ToOwned};
+pub use std::boxed::Box;
+pub use std::cell::RefCell;
+pub use std::cmp;
+pub use std::collections::btree_map::BTreeMap;
+pub use std::collections::btree_set::BTreeSet;
+pub use std::collections::hash_map::HashMap;
+pub use std::collections::hash_set::HashSet;
+pub use std::collections::LinkedList;
+pub use std::collections::VecDeque;
+pub use std::convert::{TryFrom, TryInto};
+pub use std::fmt;
+pub use std::future::Future;
+pub use std::mem;
+pub use std::ops::{Fn, FnMut, FnOnce};
+pub use std::pin::Pin;
+pub use std::rc::Rc;
+pub use std::string::String;
+pub use std::sync::atomic::{AtomicBool, Ordering};
+pub use std::sync::{Arc, Weak};
+pub use std::task;
+pub use std::time::Duration;
+pub use std::vec::Vec;
+
 cfg_if! {
     if #[cfg(target_arch = "wasm32")] {
-        pub use alloc::string::String;
-        pub use alloc::vec::Vec;
-        pub use alloc::collections::LinkedList;
-        pub use alloc::collections::VecDeque;
-        pub use alloc::collections::btree_map::BTreeMap;
-        pub use alloc::collections::btree_set::BTreeSet;
-        pub use hashbrown::hash_map::HashMap;
-        pub use hashbrown::hash_set::HashSet;
-        pub use alloc::boxed::Box;
-        pub use alloc::borrow::{Cow, ToOwned};
         pub use wasm_bindgen::prelude::*;
-        pub use core::cmp;
+
-        pub use core::convert::{TryFrom, TryInto};
-        pub use core::mem;
-        pub use core::fmt;
-        pub use alloc::rc::Rc;
-        pub use core::cell::RefCell;
-        pub use core::task;
-        pub use core::future::Future;
-        pub use core::time::Duration;
-        pub use core::pin::Pin;
-        pub use core::sync::atomic::{Ordering, AtomicBool};
-        pub use alloc::sync::{Arc, Weak};
-        pub use core::ops::{FnOnce, FnMut, Fn};
         pub use async_lock::Mutex as AsyncMutex;
         pub use async_lock::MutexGuard as AsyncMutexGuard;
         pub use async_lock::MutexGuardArc as AsyncMutexGuardArc;
-        pub use no_std_net::{ SocketAddr, SocketAddrV4, SocketAddrV6, ToSocketAddrs, IpAddr, Ipv4Addr, Ipv6Addr };
         pub use async_executors::JoinHandle as LowLevelJoinHandle;
+
+        pub use no_std_net::{ SocketAddr, SocketAddrV4, SocketAddrV6, ToSocketAddrs, IpAddr, Ipv4Addr, Ipv6Addr };
     } else {
-        pub use std::string::String;
+
-        pub use std::vec::Vec;
-        pub use std::collections::LinkedList;
-        pub use std::collections::VecDeque;
-        pub use std::collections::btree_map::BTreeMap;
-        pub use std::collections::btree_set::BTreeSet;
-        pub use std::collections::hash_map::HashMap;
-        pub use std::collections::hash_set::HashSet;
-        pub use std::boxed::Box;
-        pub use std::borrow::{Cow, ToOwned};
-        pub use std::cmp;
-        pub use std::convert::{TryFrom, TryInto};
-        pub use std::mem;
-        pub use std::fmt;
-        pub use std::sync::atomic::{Ordering, AtomicBool};
-        pub use std::sync::{Arc, Weak};
-        pub use std::rc::Rc;
-        pub use std::cell::RefCell;
-        pub use std::task;
-        pub use std::future::Future;
-        pub use std::time::Duration;
-        pub use std::pin::Pin;
-        pub use std::ops::{FnOnce, FnMut, Fn};
         cfg_if! {
             if #[cfg(feature="rt-async-std")] {
                 pub use async_std::sync::Mutex as AsyncMutex;