sem_close - close a named semaphore

       For an explanation of the terms used in this section, see attributes(7).
       ┌─────────────────────────────────────────────────────────────────────────────┬───────────────┬─────────┐
       │ Interface                                                                   │ Attribute     │ Value   │
       ├─────────────────────────────────────────────────────────────────────────────┼───────────────┼─────────┤
       │ sem_close()                                                                 │ Thread safety │ MT-Safe │
       └─────────────────────────────────────────────────────────────────────────────┴───────────────┴─────────┘

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.

EINVALsem is not a valid semaphore.

       POSIX.1-2001.

       POSIX threads library (libpthread, -lpthread)

       sem_close - close a named semaphore

       All open named semaphores are automatically closed on process termination, or upon execve(2).

       On success sem_close() returns 0; on error, -1 is returned, with errno set to indicate the error.

sem_getvalue(3), sem_open(3), sem_post(3), sem_unlink(3), sem_wait(3), sem_overview(7)

Linux man-pages 6.9.1                              2024-05-02                                       sem_close(3)

       POSIX.1-2008.

#include<semaphore.h>intsem_close(sem_t*sem);