Crate fsqlite_core 

Core bounded-parallelism primitives (§1.5, bd-22n.4).

This module provides a small bulkhead framework for internal background work. It is intentionally non-blocking: overflow is rejected with SQLITE_BUSY (FrankenError::Busy) instead of queue-and-wait semantics.

Modules

attach

ATTACH/DETACH database schema registry (§12.11, bd-7pxb).

commit_marker

Commit Marker Stream Format (§3.5.4 + §3.5.4.1, bd-1hi.23).

commit_repair

Commit durability and asynchronous repair orchestration (§1.6, bd-22n.11).

compat_persist

Compat persistence: read/write real SQLite-format database files.

connection

SQL connection API with pager/WAL/B-tree storage wiring on the default path.

db_fec

.db-fec sidecar — erasure-coded page storage for on-the-fly repair (§3.4.6, bd-1hi.18).

decode_proofs

§3.5.8 Decode Proofs (Auditable Repair) + §3.5.9 Deterministic Encoding.

ecs_replication

ECS-native replication architecture (§3.4.7, bd-1hi.19).

epoch

Epoch clock, key derivation, and epoch transition barrier (§4.18, bd-3go.12).

explain

EXPLAIN and EXPLAIN QUERY PLAN execution (§12.12, bd-7pxb).

inter_object_coding

Inter-object coding groups for replication catch-up (§3.5.6, bd-1hi.26).

lrc

Local Reconstruction Codes (§1.4) for distributed repair.

native_index

Native index lookup, repair, and deterministic segment construction (§3.6.4-§3.6.7).

permeation_map

§3.5.7 RaptorQ permeation map audit (bd-1hi.27).

por

Proofs of Retrievability (PoR) — cryptographic storage audit (§11.11, bd-3bw.4).

raptorq_codec

Production SymbolCodec implementation backed by asupersync RaptorQ (bd-3sj9w).

raptorq_integration

§3.3 Asupersync RaptorQ Pipeline Integration (bd-1hi.5).

region

Structured concurrency region tree (§4.11, bd-3go.9).

remote_effects

Remote effects contract primitives (§4.19.1-§4.19.5, bd-numl).

repair_engine

§3.5 Unified RaptorQ Decode/Repair Engine with BLAKE3 Proofs (bd-n0g4q.3).

repair_symbols

§3.5.3 Deterministic Repair Symbol Generation.

replication_receiver

§3.4.2 Fountain-Coded Replication Receiver (bd-1hi.14).

replication_sender

§3.4.2 Fountain-Coded Replication Sender (bd-1hi.13).

snapshot_shipping

§3.4.3 Fountain-Coded Snapshot Shipping (bd-1hi.15).

source_block_partition

§3.1 RaptorQ Source Block Partitioning for Large Databases (bd-1hi.6).

symbol_log

Symbol Record Logs (append-only) for ECS objects (§3.5.4.2, bd-1hi.24).

symbol_size_policy

§3.5.10 Symbol Size Policy (Object-Type-Aware, Measured).

tiered_storage

Tiered storage controls for Native mode (§3.5.11, bd-1hi.29).

transaction

Transaction state machine (§12.10, bd-7pxb).

wal_adapter

Adapters bridging the WAL and pager crates at runtime.

wal_fec_adapter

WAL FEC adapter: wires the PageSymbolSink / PageSymbolSource traits to the WAL commit and read paths via the production AsupersyncCodec (bd-3sj9w).

Structs

Bulkhead

Non-blocking bulkhead admission gate.

BulkheadConfig

Bounded parallelism configuration for a work class.

BulkheadPermit

RAII permit for a single admitted work item.

RegionBulkhead

Region-owned wrapper used for structured-concurrency integration.

WideChunkLayout

Chunking plan for SIMD-friendly wide-word loops.

Enums

OverflowPolicy

Policy used when the bulkhead admission budget is exhausted.

ParallelismProfile

Runtime profile for conservative parallelism defaults.

Functions

available_parallelism_or_one

Return std::thread::available_parallelism() with a safe floor of 1.

conservative_bg_cpu_max

Compute conservative default background CPU parallelism from P.

gf256_add_assign_chunked

GF(256) addition (+) using wide XOR chunk loops.

simd_friendly_checksum_pair

Compute xxhash3 + blake3 on a contiguous input buffer.

symbol_add_assign

RaptorQ symbol add (dst ^= src) using chunked XOR.

symbol_addmul_assign

RaptorQ fused multiply-add (dst ^= c * src) in GF(256).

symbol_mul_into

RaptorQ symbol scalar multiply (out = c * src) in GF(256).

xor_patch_wide_chunks

XOR patch application using u128 + u64 + tail loops.