bsemfree(2)

NAME

bsemfree − release a binary semaphore

#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/bsem.h>
int bsemfree (bsemid)
int bsemid;

Bsemid is a binary semaphore identifier obtained from a bsemget call. bsemfree releases the binary semaphore identified by bsemid.

Upon successful completion a value of 0 is returned. Otherwise, a value of −1 is returned and errno is set to indicate the error.

bsemfree will fail if one or more of the following are true:

[EINVAL] Bsemid is not a valid binary semaphore identifier.