Module snapshot 

Snapshot service for atomic state + offset persistence.

This module provides:

• Generic traits for snapshotting any stateful service
• Synchronization state tracking for readiness gating
• Portfolio-specific DB implementations
• Order cache snapshot implementations
• Instruments snapshot implementations

Architecture

snapshot/
├── error.rs          # SnapshotError
├── sync.rs           # SyncState, SyncStatus
├── traits.rs         # Generic Snapshotable, SnapshotWriter, SnapshotLoader
├── portfolio/        # Portfolio-specific DB implementations
│   └── db.rs         # DbPortfolioSnapshotWriter, DbPortfolioSnapshotLoader
└── instruments/      # Instruments snapshot DB implementations
    └── db.rs         # DbInstrumentsSnapshotWriter, DbInstrumentsSnapshotLoader

Re-exports

pub use error::SnapshotError;

pub use sync::SyncState;

pub use sync::SyncStatus;

pub use traits::bootstrap_from_snapshot;

pub use traits::OffsetStore;

pub use traits::SnapshotLoader;

pub use traits::SnapshotState;

pub use traits::SnapshotWriter;

pub use traits::Snapshotable;

pub use portfolio::DbPortfolioSnapshotLoader;

pub use portfolio::DbPortfolioSnapshotWriter;

pub use portfolio::PortfolioSnapshotTask;

pub use portfolio::SnapshotTaskConfig;

pub use instruments::DbInstrumentsSnapshotLoader;

pub use instruments::DbInstrumentsSnapshotWriter;

pub use instruments::InstrumentsSnapshotTask;

Modules

error

Snapshot error types.

instruments

Instruments snapshot persistence.

portfolio

Portfolio-specific snapshot implementations.

sync

Synchronization state tracking for snapshot services.

traits

Generic snapshot traits.