| SEM_CLOSE(3) | Linux Programmer's Manual | SEM_CLOSE(3) |
sem_close - close a named semaphore
#include <semaphore.h>
int sem_close(sem_t *sem);
Link with -pthread.
sem_close() closes the named semaphore referred to by sem, allowing any resources that the system has allocated to the calling process for this semaphore to be freed.
On success sem_close() returns 0; on error, -1 is returned, with errno set to indicate the error.
For an explanation of the terms used in this section, see attributes(7).
| Interface | Attribute | Value |
| sem_close () | Thread safety | MT-Safe |
POSIX.1-2001, POSIX.1-2008.
All open named semaphores are automatically closed on process termination, or upon execve(2).
sem_getvalue(3), sem_open(3), sem_post(3), sem_unlink(3), sem_wait(3), sem_overview(7)
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| 2017-09-15 | Linux |