sem_destroy man page on Gentoo

Man page or keyword search:  
man Server   6889 pages
apropos Keyword Search (all sections)
Output format
Gentoo logo
[printable version]

SEM_DESTROY(3)		   Linux Programmer's Manual		SEM_DESTROY(3)

NAME
       sem_destroy - destroy an unnamed semaphore

SYNOPSIS
       #include <semaphore.h>

       int sem_destroy(sem_t *sem);

       Link with -pthread.

DESCRIPTION
       sem_destroy()  destroys the unnamed semaphore at the address pointed to
       by sem.

       Only a semaphore that has been initialized  by  sem_init(3)  should  be
       destroyed using sem_destroy().

       Destroying  a  semaphore	 that other processes or threads are currently
       blocked on (in sem_wait(3)) produces undefined behavior.

       Using a semaphore that has been destroyed produces  undefined  results,
       until the semaphore has been reinitialized using sem_init(3).

RETURN VALUE
       sem_destroy() returns 0 on success; on error, -1 is returned, and errno
       is set to indicate the error.

ERRORS
       EINVAL sem is not a valid semaphore.

ATTRIBUTES
   Multithreading (see pthreads(7))
       The sem_destroy() function is thread-safe.

CONFORMING TO
       POSIX.1-2001.

NOTES
       An unnamed semaphore should be destroyed with sem_destroy() before  the
       memory  in  which it is located is deallocated.	Failure to do this can
       result in resource leaks on some implementations.

SEE ALSO
       sem_init(3), sem_post(3), sem_wait(3), sem_overview(7)

COLOPHON
       This page is part of release 3.63 of the Linux  man-pages  project.   A
       description  of	the project, and information about reporting bugs, can
       be found at http://www.kernel.org/doc/man-pages/.

Linux				  2014-03-03			SEM_DESTROY(3)
[top]

List of man pages available for Gentoo

Copyright (c) for man pages and the logo by the respective OS vendor.

For those who want to learn more, the polarhome community provides shell access and support.

[legal] [privacy] [GNU] [policy] [cookies] [netiquette] [sponsors] [FAQ]
Tweet
Polarhome, production since 1999.
Member of Polarhome portal.
Based on Fawad Halim's script.
....................................................................
Vote for polarhome
Free Shell Accounts :: the biggest list on the net