matthiasbeyer/imag
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Use StoreEntry instead of a tuple

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This commit is contained in:
Marcel Müller 2016-01-16 20:30:16 +01:00
parent d4c850ef17
commit 463c182bcc
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1 changed files with 22 additions and 4 deletions
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26
libimagstore/src/store.rs
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@ -58,6 +58,25 @@ impl<ISI: IntoStoreId> IntoStoreId for (ISI, ISI) {
}
}
struct StoreEntry {
file: File,
entry: Option<Entry>,
}
impl StoreEntry {
fn is_borrowed(&self) -> bool {
self.entry.is_none()
}
fn set_entry(&mut self, entry: Entry) -> Result<()> {
self.entry = Some(entry);
unimplemented!()
}
fn get_entry(&mut self) -> Result<Entry> {
unimplemented!()
}
}
pub struct Store {
location: PathBuf,
@ -69,7 +88,7 @@ pub struct Store {
*
* Could be optimized for a threadsafe HashMap
*/
entries: Arc<RwLock<HashMap<StoreId, (File, Option<Entry>)>>>,
entries: Arc<RwLock<HashMap<StoreId, StoreEntry>>>,
}
impl Store {
@ -103,7 +122,7 @@ impl Drop for Store {
*/
fn drop(&mut self) {
self.entries.write().unwrap()
.iter().map(|f| (f.1).0.unlock());
.iter().map(|f| f.1.file.unlock());
}
}
@ -141,8 +160,7 @@ impl<'a> ::std::ops::DerefMut for FileLockEntry<'a> {
impl<'a> Drop for FileLockEntry<'a> {
fn drop(&mut self) {
let mut map = self.store.entries.write().unwrap();
let (_, ref mut en) = *map.get_mut(&self.key).unwrap();
*en = Some(self.entry.clone());
map.get_mut(&self.key).unwrap().set_entry(self.entry.clone());
}
}