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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.

NetBSD 6.1.5                   January 21, 2005                   NetBSD 6.1.5