GSP
Quick Navigator

Search Site

Unix VPS
A - Starter
B - Basic
C - Preferred
D - Commercial
MPS - Dedicated
Previous VPSs
* Sign Up! *

Support
Contact Us
Online Help
Handbooks
Domain Status
Man Pages

FAQ
Virtual Servers
Pricing
Billing
Technical

Network
Facilities
Connectivity
Topology Map

Miscellaneous
Server Agreement
Year 2038
Credits
 

USA Flag

 

 

Man Pages
SEM(4) FreeBSD Kernel Interfaces Manual SEM(4)

sem
POSIX semaphores

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.conf(5):

sem_load="YES"

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

kldload sem

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

sem_destroy(3), sem_getvalue(3), sem_init(3), sem_open(3), sem_post(3), sem_wait(3), config(8), kldload(8), kldunload(8)

The sem facility appeared in FreeBSD 5.0.
February 7, 2014 FreeBSD 13.1-RELEASE

Search for    or go to Top of page |  Section 4 |  Main Index

Powered by GSP Visit the GSP FreeBSD Man Page Interface.
Output converted with ManDoc.