Manpage of SEM_CLOSE
SEM_CLOSESection: Linux Programmer's Manual (3)
NAMEsem_close - close a named semaphore
#include <semaphore.h>int sem_close(sem_t *sem);
DESCRIPTIONsem_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.
RETURN VALUEOn success sem_close() returns 0; on error, -1 is returned, with errnoset to indicate the error.
- semis not a valid semaphore.
ATTRIBUTESFor an explanation of the terms used in this section, see attributes(7).
CONFORMING TOPOSIX.1-2001, POSIX.1-2008.
NOTESAll open named semaphores are automatically closed on process termination, or upon execve(2).
SEE ALSOsem_getvalue(3), sem_open(3), sem_post(3), sem_unlink(3), sem_wait(3), sem_overview(7)
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