switchboard/core
Archived
1
0
Fork 0
Code Issues Pull Requests Actions Releases 9 Wiki Activity

Feat v0.7.12 batch.exec concurrent execution primitive

Browse Source 
Add batch.exec(callables, timeout=10) — a general-purpose concurrent
execution primitive that runs arbitrary Starlark callables in parallel,
each in its own thread with independent step budget. Enables extensions
to fan out library function calls (frozen exports from lib.require)
without decomposing them back into raw http.post parameters.

New permission: batch.exec. Max 8 callables, timeout 1-30s.
Nesting prohibited via atomic flag. 12 new tests, all pass with -race.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
Jeffrey Smith
2026-04-02 23:52:01 +00:00
parent c2d52f50c5
commit 8957e99610
7 changed files with 981 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
ROADMAP.md
View File

@@ -1,6 +1,6 @@
# Armature — Roadmap
## Current: v0.7.11 — Query & HTTP Ergonomics
## Current: v0.7.12 — Concurrent Execution Primitive
Self-hosted extensible platform kernel. Auth, identity, packages, Starlark
sandbox, storage, realtime, and ops are kernel primitives. Everything else
@@ -371,10 +371,10 @@ fresh module instances (`db`, `http`, etc.) — same pattern as
| Step | Status | Description |
|------|--------|-------------|
| Design doc | | `docs/DESIGN-batch-exec.md`. Thread isolation model, module construction, error semantics (partial results on failure), permission model, concurrency cap. |
| `batch.exec()` | | `batch.exec(callables)` → `(results, errors)` tuple. List of Starlark callables (lambdas, function refs). Each runs in its own `starlark.Thread` with fresh modules. Concurrent goroutines capped at 8. Ordered results. Errors are per-callable (None on success, string on failure). Permission: `batch.exec` (new). New file: `sandbox/batch_module.go`. |
| Runner wiring | | `buildModulesWithLibCtx` creates `batch` module when `batch.exec` permission granted. Module receives runner reference for per-branch module construction. |
| Tests | | Unit tests: parallel execution ordering, partial failure, cap enforcement, frozen library sharing, permission gating. |
| Design doc | done | `docs/DESIGN-batch-exec.md`. Thread isolation model, module construction, error semantics (partial results on failure), permission model, concurrency cap. |
| `batch.exec()` | done | `batch.exec(callables)` → `(results, errors)` tuple. List of Starlark callables (lambdas, function refs). Each runs in its own `starlark.Thread` with fresh modules. Concurrent goroutines capped at 8. Ordered results. Errors are per-callable (None on success, string on failure). Permission: `batch.exec` (new). New file: `sandbox/batch_module.go`. |
| Runner wiring | done | `buildModulesWithLibCtx` creates `batch` module when `batch.exec` permission granted. Module receives runner reference for per-branch module construction. |
| Tests | done | 12 unit tests: parallel execution ordering, partial failure, timeout per-branch, parent cancellation, cap enforcement, empty list, non-callable, permission gating, frozen struct sharing, nested batch.exec, default timeout, timeout clamping. All pass with `-race`. |
---