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revisionstore: prefetch takes &[Key] instead of Vec<Key>

Browse Source 
Summary: This can prevent potential moves and clones on the caller of prefetch.

Reviewed By: quark-zju

Differential Revision: D19518697

fbshipit-source-id: 63839fc3f4bb9ca420e290eabaffb481a3584f7b
This commit is contained in:
Xavier Deguillard 2020-01-23 08:55:49 -08:00 committed by Facebook Github Bot
parent 83cdc441c8
commit b6589bde84
11 changed files with 32 additions and 32 deletions
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2
eden/scm/edenscmnative/bindings/modules/pymanifest/src/lib.rs
View File

@ -52,7 +52,7 @@ impl<T: DataStore + RemoteDataStore> manifest_tree::TreeStore for ManifestStore<
}
fn prefetch(&self, keys: Vec<Key>) -> Result<()> {
self.underlying.prefetch(keys)
self.underlying.prefetch(&keys)
}
}

2
eden/scm/edenscmnative/bindings/modules/pyrevisionstore/src/datastorepyext.rs
View File

@ -200,7 +200,7 @@ impl<T: RemoteDataStore + ?Sized> RemoteDataStorePyExt for T {
.iter(py)
.map(|tuple| from_tuple_to_key(py, &tuple))
.collect::<PyResult<Vec<Key>>>()?;
self.prefetch(keys).map_pyerr(py)?;
self.prefetch(&keys).map_pyerr(py)?;
Ok(Python::None(py))
}
}

2
eden/scm/edenscmnative/bindings/modules/pyrevisionstore/src/historystorepyext.rs
View File

@ -192,7 +192,7 @@ impl<T: RemoteHistoryStore + ?Sized> RemoteHistoryStorePyExt for T {
.iter(py)
.map(|tuple| from_tuple_to_key(py, &tuple))
.collect::<PyResult<Vec<Key>>>()?;
self.prefetch(keys).map_pyerr(py)?;
self.prefetch(&keys).map_pyerr(py)?;
Ok(Python::None(py))
}
}

14
eden/scm/edenscmnative/bindings/modules/pyrevisionstore/src/lib.rs
View File

@ -692,7 +692,7 @@ struct PyRemoteStore {
}
impl PyRemoteStore {
fn prefetch(&self, keys: Vec<Key>) -> Result<()> {
fn prefetch(&self, keys: &[Key]) -> Result<()> {
let gil = Python::acquire_gil();
let py = gil.python();
@ -745,7 +745,7 @@ impl RemoteStore for PyRemoteStore {
}
impl RemoteDataStore for PyRemoteDataStore {
fn prefetch(&self, keys: Vec<Key>) -> Result<()> {
fn prefetch(&self, keys: &[Key]) -> Result<()> {
self.0.prefetch(keys)
}
}
@ -756,7 +756,7 @@ impl DataStore for PyRemoteDataStore {
}
fn get_delta(&self, key: &Key) -> Result<Option<Delta>> {
match self.prefetch(vec![key.clone()]) {
match self.prefetch(&[key.clone()]) {
Ok(()) => self
.0
.inner
@ -770,7 +770,7 @@ impl DataStore for PyRemoteDataStore {
}
fn get_delta_chain(&self, key: &Key) -> Result<Option<Vec<Delta>>> {
match self.prefetch(vec![key.clone()]) {
match self.prefetch(&[key.clone()]) {
Ok(()) => self
.0
.inner
@ -784,7 +784,7 @@ impl DataStore for PyRemoteDataStore {
}
fn get_meta(&self, key: &Key) -> Result<Option<Metadata>> {
match self.prefetch(vec![key.clone()]) {
match self.prefetch(&[key.clone()]) {
Ok(()) => self
.0
.inner
@ -805,14 +805,14 @@ impl LocalStore for PyRemoteDataStore {
}
impl RemoteHistoryStore for PyRemoteHistoryStore {
fn prefetch(&self, keys: Vec<Key>) -> Result<()> {
fn prefetch(&self, keys: &[Key]) -> Result<()> {
self.0.prefetch(keys)
}
}
impl HistoryStore for PyRemoteHistoryStore {
fn get_node_info(&self, key: &Key) -> Result<Option<NodeInfo>> {
match self.prefetch(vec![key.clone()]) {
match self.prefetch(&[key.clone()]) {
Ok(()) => self
.0
.inner

2
eden/scm/edenscmnative/bindings/modules/pyrevisionstore/src/pythondatastore.rs
View File

@ -147,7 +147,7 @@ impl DataStore for PythonDataStore {
}
impl RemoteDataStore for PythonDataStore {
fn prefetch(&self, keys: Vec<Key>) -> Result<()> {
fn prefetch(&self, keys: &[Key]) -> Result<()> {
let gil = Python::acquire_gil();
let py = gil.python();
let keys = keys

6
eden/scm/lib/revisionstore/src/contentstore.rs
View File

@ -68,13 +68,13 @@ impl DataStore for ContentStore {
}
impl RemoteDataStore for ContentStore {
fn prefetch(&self, keys: Vec<Key>) -> Result<()> {
fn prefetch(&self, keys: &[Key]) -> Result<()> {
if let Some(remote_store) = self.inner.remote_store.as_ref() {
let missing = self.get_missing(&keys)?;
let missing = self.get_missing(keys)?;
if missing == vec![] {
Ok(())
} else {
remote_store.prefetch(missing)
remote_store.prefetch(&missing)
}
} else {
// There is no remote store, let's pretend everything is fine.

4
eden/scm/lib/revisionstore/src/datastore.rs
View File

@ -49,7 +49,7 @@ pub trait RemoteDataStore: DataStore + Send + Sync {
/// When implemented on a pure remote store, like the `EdenApi`, the method will always fetch
/// everything that was asked. On a higher level store, such as the `ContentStore`, this will
/// avoid fetching data that is already present locally.
fn prefetch(&self, keys: Vec<Key>) -> Result<()>;
fn prefetch(&self, keys: &[Key]) -> Result<()>;
}
pub trait MutableDeltaStore: DataStore + Send + Sync {
@ -77,7 +77,7 @@ impl<T: DataStore + ?Sized, U: Deref<Target = T> + Send + Sync> DataStore for U
/// Implement `RemoteDataStore` for all types that can be `Deref` into a `RemoteDataStore`. This
/// includes all the smart pointers like `Box`, `Rc`, `Arc`.
impl<T: RemoteDataStore + ?Sized, U: Deref<Target = T> + Send + Sync> RemoteDataStore for U {
fn prefetch(&self, keys: Vec<Key>) -> Result<()> {
fn prefetch(&self, keys: &[Key]) -> Result<()> {
T::prefetch(self, keys)
}
}

12
eden/scm/lib/revisionstore/src/edenapi.rs
View File

@ -75,11 +75,11 @@ struct EdenApiRemoteDataStore {
}
impl RemoteDataStore for EdenApiRemoteDataStore {
fn prefetch(&self, keys: Vec<Key>) -> Result<()> {
fn prefetch(&self, keys: &[Key]) -> Result<()> {
let edenapi = &self.inner.edenapi;
let (entries, _) = match edenapi.kind {
EdenApiRemoteStoreKind::File => edenapi.edenapi.get_files(keys, None)?,
EdenApiRemoteStoreKind::Tree => edenapi.edenapi.get_trees(keys, None)?,
EdenApiRemoteStoreKind::File => edenapi.edenapi.get_files(keys.to_vec(), None)?,
EdenApiRemoteStoreKind::Tree => edenapi.edenapi.get_trees(keys.to_vec(), None)?,
};
for entry in entries {
let key = entry.0.clone();
@ -105,21 +105,21 @@ impl DataStore for EdenApiRemoteDataStore {
}
fn get_delta(&self, key: &Key) -> Result<Option<Delta>> {
match self.prefetch(vec![key.clone()]) {
match self.prefetch(&[key.clone()]) {
Ok(()) => self.inner.store.get_delta(key),
Err(_) => Ok(None),
}
}
fn get_delta_chain(&self, key: &Key) -> Result<Option<Vec<Delta>>> {
match self.prefetch(vec![key.clone()]) {
match self.prefetch(&[key.clone()]) {
Ok(()) => self.inner.store.get_delta_chain(key),
Err(_) => Ok(None),
}
}
fn get_meta(&self, key: &Key) -> Result<Option<Metadata>> {
match self.prefetch(vec![key.clone()]) {
match self.prefetch(&[key.clone()]) {
Ok(()) => self.inner.store.get_meta(key),
Err(_) => Ok(None),
}

2
eden/scm/lib/revisionstore/src/historystore.rs
View File

@ -35,7 +35,7 @@ pub trait RemoteHistoryStore: HistoryStore + Send + Sync {
/// When implemented on a pure remote store, like the `EdenApi`, the method will always fetch
/// everything that was asked. On a higher level store, such as the `MetadataStore`, this will
/// avoid fetching data that is already present locally.
fn prefetch(&self, keys: Vec<Key>) -> Result<()>;
fn prefetch(&self, keys: &[Key]) -> Result<()>;
}
/// Implement `HistoryStore` for all types that can be `Deref` into a `HistoryStore`.

4
eden/scm/lib/revisionstore/src/metadatastore.rs
View File

@ -56,13 +56,13 @@ impl HistoryStore for MetadataStore {
}
impl RemoteHistoryStore for MetadataStore {
fn prefetch(&self, keys: Vec<Key>) -> Result<()> {
fn prefetch(&self, keys: &[Key]) -> Result<()> {
if let Some(remote_store) = self.inner.remote_store.as_ref() {
let missing = self.get_missing(&keys)?;
if missing == vec![] {
Ok(())
} else {
remote_store.prefetch(missing)
remote_store.prefetch(&missing)
}
} else {
// There is no remote store, let's pretend everything is fine.

14
eden/scm/lib/revisionstore/src/testutil.rs
View File

@ -76,13 +76,13 @@ struct FakeRemoteDataStore {
}
impl RemoteDataStore for FakeRemoteDataStore {
fn prefetch(&self, keys: Vec<Key>) -> Result<()> {
fn prefetch(&self, keys: &[Key]) -> Result<()> {
for k in keys {
let data = self.map.get(&k).ok_or_else(|| Error::msg("Not found"))?;
let delta = Delta {
data: data.clone(),
base: None,
key: k,
key: k.clone(),
};
self.store.add(&delta, &Default::default())?;
}
@ -97,21 +97,21 @@ impl DataStore for FakeRemoteDataStore {
}
fn get_delta(&self, key: &Key) -> Result<Option<Delta>> {
match self.prefetch(vec![key.clone()]) {
match self.prefetch(&[key.clone()]) {
Err(_) => Ok(None),
Ok(()) => self.store.get_delta(key),
}
}
fn get_delta_chain(&self, key: &Key) -> Result<Option<Vec<Delta>>> {
match self.prefetch(vec![key.clone()]) {
match self.prefetch(&[key.clone()]) {
Err(_) => Ok(None),
Ok(()) => self.store.get_delta_chain(key),
}
}
fn get_meta(&self, key: &Key) -> Result<Option<Metadata>> {
match self.prefetch(vec![key.clone()]) {
match self.prefetch(&[key.clone()]) {
Err(_) => Ok(None),
Ok(()) => self.store.get_meta(key),
}
@ -130,7 +130,7 @@ struct FakeRemoteHistoryStore {
}
impl RemoteHistoryStore for FakeRemoteHistoryStore {
fn prefetch(&self, keys: Vec<Key>) -> Result<()> {
fn prefetch(&self, keys: &[Key]) -> Result<()> {
for k in keys {
self.store
.add(&k, self.map.get(&k).ok_or_else(|| Error::msg("Not found"))?)?
@ -142,7 +142,7 @@ impl RemoteHistoryStore for FakeRemoteHistoryStore {
impl HistoryStore for FakeRemoteHistoryStore {
fn get_node_info(&self, key: &Key) -> Result<Option<NodeInfo>> {
match self.prefetch(vec![key.clone()]) {
match self.prefetch(&[key.clone()]) {
Err(_) => Ok(None),
Ok(()) => self.store.get_node_info(key),
}