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offload initial iterator seeks to threadpool

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Signed-off-by: Jason Volk <jason@zemos.net>
This commit is contained in:
Jason Volk 2024-12-02 08:51:59 +00:00
parent 320b0680bd
commit b5006a4c41
20 changed files with 361 additions and 131 deletions
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21
src/database/stream/items.rs
View file

@ -1,4 +1,4 @@
use std::{pin::Pin, sync::Arc};
use std::{convert, pin::Pin, sync::Arc};
use conduit::Result;
use futures::{
@ -16,9 +16,17 @@ pub(crate) struct Items<'a> {
}
impl<'a> Items<'a> {
pub(crate) fn new(db: &'a Arc<Engine>, cf: &'a Arc<ColumnFamily>, opts: ReadOptions, from: From<'_>) -> Self {
pub(crate) fn new(db: &'a Arc<Engine>, cf: &'a Arc<ColumnFamily>, opts: ReadOptions) -> Self {
Self {
state: State::new(db, cf, opts).init_fwd(from),
state: State::new(db, cf, opts),
}
}
}
impl<'a> convert::From<State<'a>> for Items<'a> {
fn from(state: State<'a>) -> Self {
Self {
state,
}
}
}
@ -30,6 +38,13 @@ impl<'a> Cursor<'a, KeyVal<'a>> for Items<'a> {
#[inline]
fn seek(&mut self) { self.state.seek_fwd(); }
#[inline]
fn init(self, from: From<'a>) -> Self {
Self {
state: self.state.init_fwd(from),
}
}
}
impl<'a> Stream for Items<'a> {

21
src/database/stream/items_rev.rs
View file

@ -1,4 +1,4 @@
use std::{pin::Pin, sync::Arc};
use std::{convert, pin::Pin, sync::Arc};
use conduit::Result;
use futures::{
@ -16,9 +16,17 @@ pub(crate) struct ItemsRev<'a> {
}
impl<'a> ItemsRev<'a> {
pub(crate) fn new(db: &'a Arc<Engine>, cf: &'a Arc<ColumnFamily>, opts: ReadOptions, from: From<'_>) -> Self {
pub(crate) fn new(db: &'a Arc<Engine>, cf: &'a Arc<ColumnFamily>, opts: ReadOptions) -> Self {
Self {
state: State::new(db, cf, opts).init_rev(from),
state: State::new(db, cf, opts),
}
}
}
impl<'a> convert::From<State<'a>> for ItemsRev<'a> {
fn from(state: State<'a>) -> Self {
Self {
state,
}
}
}
@ -30,6 +38,13 @@ impl<'a> Cursor<'a, KeyVal<'a>> for ItemsRev<'a> {
#[inline]
fn seek(&mut self) { self.state.seek_rev(); }
#[inline]
fn init(self, from: From<'a>) -> Self {
Self {
state: self.state.init_rev(from),
}
}
}
impl<'a> Stream for ItemsRev<'a> {

21
src/database/stream/keys.rs
View file

@ -1,4 +1,4 @@
use std::{pin::Pin, sync::Arc};
use std::{convert, pin::Pin, sync::Arc};
use conduit::Result;
use futures::{
@ -16,9 +16,17 @@ pub(crate) struct Keys<'a> {
}
impl<'a> Keys<'a> {
pub(crate) fn new(db: &'a Arc<Engine>, cf: &'a Arc<ColumnFamily>, opts: ReadOptions, from: From<'_>) -> Self {
pub(crate) fn new(db: &'a Arc<Engine>, cf: &'a Arc<ColumnFamily>, opts: ReadOptions) -> Self {
Self {
state: State::new(db, cf, opts).init_fwd(from),
state: State::new(db, cf, opts),
}
}
}
impl<'a> convert::From<State<'a>> for Keys<'a> {
fn from(state: State<'a>) -> Self {
Self {
state,
}
}
}
@ -31,6 +39,13 @@ impl<'a> Cursor<'a, Key<'a>> for Keys<'a> {
#[inline]
fn seek(&mut self) { self.state.seek_fwd(); }
#[inline]
fn init(self, from: From<'a>) -> Self {
Self {
state: self.state.init_fwd(from),
}
}
}
impl<'a> Stream for Keys<'a> {

21
src/database/stream/keys_rev.rs
View file

@ -1,4 +1,4 @@
use std::{pin::Pin, sync::Arc};
use std::{convert, pin::Pin, sync::Arc};
use conduit::Result;
use futures::{
@ -16,9 +16,17 @@ pub(crate) struct KeysRev<'a> {
}
impl<'a> KeysRev<'a> {
pub(crate) fn new(db: &'a Arc<Engine>, cf: &'a Arc<ColumnFamily>, opts: ReadOptions, from: From<'_>) -> Self {
pub(crate) fn new(db: &'a Arc<Engine>, cf: &'a Arc<ColumnFamily>, opts: ReadOptions) -> Self {
Self {
state: State::new(db, cf, opts).init_rev(from),
state: State::new(db, cf, opts),
}
}
}
impl<'a> convert::From<State<'a>> for KeysRev<'a> {
fn from(state: State<'a>) -> Self {
Self {
state,
}
}
}
@ -31,6 +39,13 @@ impl<'a> Cursor<'a, Key<'a>> for KeysRev<'a> {
#[inline]
fn seek(&mut self) { self.state.seek_rev(); }
#[inline]
fn init(self, from: From<'a>) -> Self {
Self {
state: self.state.init_rev(from),
}
}
}
impl<'a> Stream for KeysRev<'a> {