sem(4) POSIX semaphores

SYNOPSIS

To compile this driver into the kernel, place the following line in your kernel configuration file:
options P1003_1B_SEMAPHORES

Alternatively, to load the driver as a module at boot time, place the following line in loader.conf5:


sem_load="YES"

To load the driver as a module at run-time, run the following command as root:

kldload sem

DESCRIPTION

The facility provides system calls used by the standard C library (libc ) to implement POSIX semaphores. This facility offers support for such functions as Fn sem_init and Fn sem_wait . It is available both as a kernel option for static inclusion and as a dynamic kernel module.

HISTORY

The facility appeared in Fx 5.0 .