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2 posts

macOSDeep Dive October 3, 2026 9 min read

Dispatch I/O on macOS: Channel Ownership, Partial Reads, and Backpressure

Use DispatchIO for bounded asynchronous file and stream I/O with explicit descriptor ownership, partial-result handling, watermarks, errors, and teardown.

#macos#dispatchio#gcd

macOSDeep Dive October 3, 2026 8 min read

DispatchSourceTimer on macOS: Leeway, Coalescing, and Safe Cancellation

Build resilient GCD timer sources with monotonic deadlines, justified leeway, serialized state, balanced suspension, and race-safe teardown.

#macos#dispatch#gcd