pipecircuit 0.0.25

Correct. Robust. Fast. Portable. Pick four.
Documentation 
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#[cfg(feature = "secondary-indexes")]
use super::query::WorkspaceSelectionError;
use crate::storage::query_workspace::{QueryChunk, QueryWorkspace, WorkspaceMembership};
mod assignment;
pub struct BulkUpdateWorkspace<Chunks, Scratch, Pending, Group, Slots> {
    pub(in crate::storage::warp_table) query: QueryWorkspace<Chunks, Scratch>,
    pub(in crate::storage::warp_table) pending: Pending,
    pub(in crate::storage::warp_table) group: Group,
    pub(in crate::storage::warp_table) slots: Slots,
}

impl<Chunks, Scratch, Pending, Group, Slots>
    BulkUpdateWorkspace<Chunks, Scratch, Pending, Group, Slots>
{
    pub const fn new(
        query: QueryWorkspace<Chunks, Scratch>,
        pending: Pending,
        group: Group,
        slots: Slots,
    ) -> Self {
        Self {
            query,
            pending,
            group,
            slots,
        }
    }
}

#[derive(Clone, Copy, Debug, Eq, PartialEq)]
pub enum BulkUpdateError {
    #[cfg(feature = "secondary-indexes")]
    Selection(WorkspaceSelectionError),
    InsufficientStorage {
        required: usize,
        available: usize,
    },
}
#[cfg(feature = "secondary-indexes")]
impl From<WorkspaceSelectionError> for BulkUpdateError {
    fn from(reason: WorkspaceSelectionError) -> Self {
        Self::Selection(reason)
    }
}

#[derive(Clone, Copy, Debug, Eq, PartialEq)]
#[must_use]
pub enum BulkSetOutcome {
    Unchanged { selected: u64 },
    Updated { selected: u64, changed: u64 },
}

#[doc(hidden)]
pub struct BulkSelection<'update> {
    pub(in crate::storage::warp_table) selected: &'update WorkspaceMembership<'update>,
    pub(in crate::storage::warp_table) pending: &'update mut QueryChunk,
    pub(in crate::storage::warp_table) group: &'update mut QueryChunk,
    pub(in crate::storage::warp_table) slots: &'update mut [u16],
}
impl BulkSelection<'_> {
    pub fn set_membership<Key, Keys, Backing, Slots>(
        &mut self,
        index: &mut crate::storage::membership::KeyedMemberships<Key, Keys, Backing>,
        column: &mut [Key],
        stable_slots: &crate::storage::warp_table::stable_slots::StableSlots<Slots>,
        target: Key,
    ) -> Result<BulkSetOutcome, BulkUpdateError>
    where
        Key: crate::storage::IndexKey,
        Keys: crate::storage::membership::MembershipKeys<Key>,
        Backing: crate::storage::membership::MembershipBacking,
        Slots: crate::storage::warp_table::stable_slots::StableSlotsBacking,
    {
        assignment::set_column_selection(index, column, stable_slots, target, self)
    }
}