SEM(4)
Kernel Interfaces Manual
SEM(4)
NAME
sem
—
POSIX 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
config(1)
,
sem_destroy(3)
,
sem_getvalue(3)
,
sem_init(3)
,
sem_open(3)
,
sem_post(3)
,
sem_wait(3)
,
options(4)
HISTORY
The
sem
facility appeared as a kernel option in
NetBSD 2.0
.
BUGS
The current implementation does not support shared, unnamed semaphores.
January 21, 2005
NetBSD 5.99