microsandbox-db 0.6.9

Shared database entity definitions and connection helpers for the microsandbox project.
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//! Entity definition for active host-global writeback pressure members.

use sea_orm::entity::prelude::*;

//--------------------------------------------------------------------------------------------------
// Types
//--------------------------------------------------------------------------------------------------

/// One active dirty-credit pool member owned by a sandbox run.
#[derive(Clone, Debug, PartialEq, Eq, DeriveEntityModel)]
#[sea_orm(table_name = "writeback_allocation")]
pub struct Model {
    /// Cryptographically random allocation identifier.
    #[sea_orm(primary_key, auto_increment = false)]
    pub id: String,
    /// Run that originally acquired the membership.
    ///
    /// This is deliberately not a foreign key: crash recovery must retain membership even if
    /// lifecycle cleanup removes the run row before another runtime can inspect the stale lease.
    pub run_id: i32,
    /// Owner-only lock-file basename held for the process lifetime.
    pub lease_name: String,
    /// Maximum limit passed to each eligible writable raw disk.
    pub per_disk_limit_bytes: i64,
    /// Number of disks represented by this membership.
    pub disk_count: i32,
    /// Requested maximum across all disks, retained for schema compatibility and diagnostics.
    pub reserved_bytes: i64,
    /// Host-global pool requested when the membership was created.
    pub pool_bytes: i64,
    /// Linux boot identifier recorded when the member joined the pressure pool.
    pub boot_id: String,
    /// Sorted Linux backing-filesystem device identities (`major:minor`, comma-separated).
    pub backing_devices: String,
    /// Allocation creation time.
    pub created_at: DateTime,
}

/// Writeback memberships intentionally have no cascading database relation.
#[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]
pub enum Relation {}

//--------------------------------------------------------------------------------------------------
// Trait Implementations
//--------------------------------------------------------------------------------------------------

impl ActiveModelBehavior for ActiveModel {}