Reference

sem_close(2)

close a named semaphore

NAME

sem_close – close a named semaphore

SYNOPSIS

#include <semaphore.h>

int

sem_close(sem_t *sem);

DESCRIPTION

The system resources associated with the named semaphore referenced by sem are deallocated and the descriptor is invalidated.

If successful, sem_close() will return 0. Otherwise, -1 is returned and errno is set.

ERRORS

sem_close() succeeds unless:

[EINVAL]

sem is not a valid semaphore descriptor.

SEE ALSO

sem_open(2), sem_unlink(2), semctl(2), semget(2), semop(2)

HISTORY

sem_close() is specified in the POSIX Realtime Extension (1003.1b-1993/1003.1i-1995).

History