11-01-2007
Quote:
Originally Posted by
rimon
The relevant portion of the code I am porting manages semphores between the threads in my application.
I recommend you use a pthread construct to do what you want to do, or build a semaphore using a pthread condition.
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LEARN ABOUT DEBIAN
sem_destroy
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.
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 3.44 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 2012-05-13 SEM_DESTROY(3)