infrastructure-jobs

Background task queue on PostgreSQL (SKIP LOCKED); Postgres-only per ADR 0022

What it is for

Background task queue with pluggable backends.

PostgreSQL-only (ADR 0022 — the SQLite backend was removed): SKIP LOCKED provides reliable, distributed job processing.

# Features

• postgres (default): PostgreSQL backend via sqlx

# Example

use infrastructure_jobs::{Job, JobQueue, JobStore};

let store = JobQueue::new(pool);
let job = store.enqueue(tenant_id, "send_email", &payload).await?;

Capabilities

crate root

Background task queue with pluggable backends.

How to use it

No examples/ target and no doctest in this crate's rustdoc. The tests listed under Verification are the closest executable usage.

Module structure

No public modules: the crate root is its whole surface.

Public surface

`crate root`

Re-exports. Exported here, defined elsewhere.

Boundary

Reaches into foundation.

Shares tier infrastructure with 82 other crates: infrastructure-acquire, infrastructure-adapters-google-calendar, infrastructure-adapters-google-gmail, infrastructure-adapters-google-places, infrastructure-adapters-google-trends, infrastructure-adapters-shodan, infrastructure-adapters-yelp, infrastructure-agent, … (82 total).

_What this crate deliberately does NOT own is a judgment. No committed registry records one for it, so none is stated here._

Where it sits

Tier flow. Which tiers this crate's own edges cross.

flowchart LR
  n_infrastructure["infrastructure"] --> n_foundation["foundation"]

Dependencies

Runtime, in this workspace.

Runtime, from outside the workspace.

Development, from outside the workspace.

Build. None.

Depended on by. 5 workspace crates.

Signal flow — what reaches this crate, and what it reaches.

flowchart LR
  n_application_cms["application-cms"] -->|uses| SELF
  n_application_jobs["application-jobs"] -->|uses| SELF
  n_application_tickets["application-tickets"] -->|uses| SELF
  n_infrastructure_cron["infrastructure-cron"] -->|uses| SELF
  n_platform_privacy_scan_api["platform-privacy-scan-api"] -->|uses| SELF
  SELF["infrastructure-jobs"]
  SELF -->|runtime| n_foundation_basemodels["foundation-basemodels"]
  classDef self fill:#1f883d,stroke:#1f883d,color:#fff;
  class SELF self;

Feature flags

flowchart LR
  n_default["default"] --> n_postgres["postgres"]
  n_postgres["postgres"] --> n_dep_sqlx["dep:sqlx"]

Targets

Error model

No public error type was detected: no public item declares a type named *Error, and no public signature returns one.

Operational characteristics

No unsafe block, unsafe fn, unsafe impl or unsafe trait was found by the parser anywhere in this crate's source.

Configuration

No environment variable is read with a literal name anywhere in this crate. A variable whose key is computed at run time cannot be listed here, and is not claimed to be absent.

Related capabilities

5 workspace crates depend on this one: application-cms, application-jobs, application-tickets, infrastructure-cron, platform-privacy-scan-api.

Verification

Evidence by module. How often each public module is named by something executable.

What the tests establish, by name:

• test_a_cancelled_job_is_cancelled_not_failed_or_succeeded — tests/cancellation.rs
• test_a_handler_that_ignores_the_token_and_succeeds_records_succeeded — tests/cancellation.rs
• test_cancel_is_fence_scoped — tests/cancellation.rs
• test_request_cancel_records_intent_without_terminating — tests/cancellation.rs
• test_the_worker_delivers_a_token_and_records_cancelled — tests/cancellation.rs
• test_a_retryable_failure_backs_off_before_reclaim — tests/failure.rs
• test_dead_letter_list_then_replay_preserves_history — tests/failure.rs
• test_exhausting_attempts_dead_letters_as_attempts_exhausted — tests/failure.rs
• test_permanent_failure_quarantines_without_consuming_the_budget — tests/failure.rs
• test_worker_quarantines_on_permanent_handler_error — tests/failure.rs
• test_a_lost_cas_is_an_error_not_a_silent_noop — tests/fence.rs
• test_a_reaped_worker_cannot_complete_the_job_that_replaced_it — tests/fence.rs
• test_a_tenant_cannot_touch_another_tenants_job — tests/fence.rs
• test_an_attempt_row_exists_before_the_handler_is_invoked — tests/fence.rs
• test_every_transition_rejects_a_stale_fence — tests/fence.rs
• test_fence_loss_preserves_the_attempt_as_outcome_unknown — tests/fence.rs
• test_heartbeat_does_not_advance_the_fence — tests/fence.rs
• test_irreversible_work_is_not_auto_reclaimed_by_default — tests/fence.rs
• test_one_pending_job_is_claimed_exactly_once — tests/fence.rs
• test_admission_is_bounded — tests/lanes.rs
• test_evict_idle_removes_only_lanes_past_their_window — tests/lanes.rs
• test_jobs_op_guard_releases_permits_after_the_op — tests/lanes.rs
• test_per_lane_execution_semaphores_are_separate — tests/lanes.rs
• test_per_lane_jobs_op_semaphores_are_separate — tests/lanes.rs
• test_removing_an_idle_tenant_stops_its_poller — tests/lanes.rs
• test_two_tier_ordering_bounds_a_single_tenant — tests/lanes.rs
• test_a_lane_claims_only_its_own_tenants_jobs — tests/lanes_pg.rs
• test_a_lane_reaps_its_tenants_orphaned_jobs — tests/lanes_pg.rs
• test_execution_semaphore_bounds_handler_concurrency — tests/lanes_pg.rs
• pg_complete_attempt_computes_duration_and_terminal_state — tests/pg_job_attempts.rs
• _… 67 more_

Documentation coverage

pie showData
    title Public items with rustdoc
    "Documented" : 2
    "No rustdoc detected" : 0

Metrics

pie showData
    title Public API by kind
    "constant" : 1
    "function" : 1

pie showData
    title Rust source composition
    "Code" : 3074
    "Blank or comment" : 1639

Generation

Rendered by tools-corpus corpus readme from repository evidence alone, renderer schema 2, lexicon current. No model, network service or database was consulted. Regenerate with tools-corpus corpus readme --write; verify with --check.