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_DESTROY(3) FreeBSD Library Functions Manual SEM_DESTROY(3)

sem_destroy
destroy an unnamed semaphore

Standard C Library (libc, -lc)

#include <semaphore.h>

int
sem_destroy(sem_t *sem);

The sem_destroy() function destroys the unnamed semaphore pointed to by sem. After a successful call to sem_destroy(), sem is unusable until re-initialized by another call to sem_init(3).

The sem_destroy() function returns the value 0 if successful; otherwise the value -1 is returned and the global variable errno is set to indicate the error.

The sem_destroy() function will fail if:
[]
The sem argument points to an invalid semaphore.
[]
There are currently threads blocked on the semaphore that sem points to.

sem_init(3)

The sem_destroy() function conforms to ISO/IEC 9945-1:1996 (“POSIX.1”).

POSIX does not define the behavior of sem_destroy() if called while there are threads blocked on sem, but this implementation is guaranteed to return -1 and set errno to EBUSY if there are threads blocked on sem.

February 15, 2000 FreeBSD 13.1-RELEASE

Search for    or go to Top of page |  Section 3 |  Main Index

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