rc/vmz
1
0
Fork 0
Code Issues 33 Pull requests 3 Projects Releases Packages Wiki Activity Actions

libvmz: decouple the C ABI from the global run loop #30

New issue
Open
opened 2026-05-22 10:38:14 +00:00 by rc · 0 comments
rc commented 2026-05-22 10:38:14 +00:00
Owner
Copy link

Problem:

  • libvmz exposes vmz_run_loop, which blocks the caller on the platform run loop.
  • The library currently expects the consumer to enter this run loop after vmz_start.

Why this is bad:

  • Embedders may already own an event loop or UI/application lifecycle.
  • A library forcing a global blocking run loop is awkward outside the CLI.
  • This makes the C ABI feel like a process-level bridge rather than a reusable library.

Suggested fix:

  • Keep the CLI convenience if useful, but separate it from the core ABI.
  • Consider exposing integration hooks or documenting that callers must run the main run loop themselves.
  • For the CLI, wrap run-loop management outside the public libvmz API.

Relevant code:

  • lib/libvmz.h: vmz_run_loop blocks indefinitely.
  • lib/libvmz.swift: vmz_run_loop calls RunLoop.current.run().
  • src/vmz.zig: runErr calls vmz_run_loop after vmz_start.
Problem: - libvmz exposes vmz_run_loop, which blocks the caller on the platform run loop. - The library currently expects the consumer to enter this run loop after vmz_start. Why this is bad: - Embedders may already own an event loop or UI/application lifecycle. - A library forcing a global blocking run loop is awkward outside the CLI. - This makes the C ABI feel like a process-level bridge rather than a reusable library. Suggested fix: - Keep the CLI convenience if useful, but separate it from the core ABI. - Consider exposing integration hooks or documenting that callers must run the main run loop themselves. - For the CLI, wrap run-loop management outside the public libvmz API. Relevant code: - lib/libvmz.h: vmz_run_loop blocks indefinitely. - lib/libvmz.swift: vmz_run_loop calls RunLoop.current.run(). - src/vmz.zig: runErr calls vmz_run_loop after vmz_start.
Sign in to join this conversation.
No Branch/Tag specified
Branches Tags
main
codex/verbose-logging
codex-fix-run-without-initrd
codex-package-libvmz
swfit
output
No results found.
Labels
Clear labels   
highprio

   
lowprio
No labels
highprio
lowprio
Milestone
Clear milestone
No items
No milestone
Projects
Clear projects
No items
No project
Assignees
Clear assignees
No assignees
1 participant
Notifications
Due date
The due date is invalid or out of range. Please use the format "yyyy-mm-dd".

No due date set.

Dependencies

No dependencies set.

Reference
rc/vmz#30
No description provided.