Zig Callback APIs: Function Pointers, Context Pointers, Thread Handoff, and Cleanup Hooks

A practical two-hour session on Zig Callback APIs, focused on Function Pointers, Context Pointers, Thread Handoff, and Cleanup Hooks. The session treats Zig as a native component exposed through C-compatible boundaries, with attention to exported symbols, allocators, packaging, host-runtime tests, and failure handling.

Audience: entry-level and intermediate developers who want a practical engineering session, not a language tour.

Outcomes:

• Explain the practical boundaries of Zig Callback APIs
• Apply Function Pointers in a small working example
• Apply Context Pointers in a small working example
• Apply Thread Handoff in a small working example

Format: two hours with a short framing walkthrough, a concrete example, discussion of tradeoffs, and a closing checklist for practice.