tag

#semaphores

2 posts

FreeBSDDeep Dive October 4, 2026 8 min read

FreeBSD POSIX Shared Memory and Named Semaphores: Lifecycle Without Races

Create, map, synchronize, inspect, and retire FreeBSD POSIX shared-memory objects with explicit sizing, permissions, error handling, and recovery.

#freebsd#posix#shared-memory

Haiku OSDeep Dive October 4, 2026 7 min read

Use Haiku kernel semaphores for bounded synchronization with correct counts, timeout handling, waiter shutdown, and explicit lifetime coordination.

#haiku#kernel#semaphores