SEM(4) Kernel Interfaces Manual SEM(4)
NAME
semPOSIX semaphores
SYNOPSIS
To link into the kernel:
options P1003_1B_SEMAPHORE
DESCRIPTION
The sem facility provides system calls used by the standard C library (libc) to implement POSIX semaphores.
SEE ALSO
HISTORY
The sem facility appeared as a kernel option in NetBSD 2.0.
BUGS
The current implementation does not support shared, unnamed semaphores.