FSSH_RW_MAX_READERS
lock->sem = fssh_create_sem(FSSH_RW_MAX_READERS, name);
fssh_status_t status = fssh_acquire_sem_etc(lock->sem, FSSH_RW_MAX_READERS,
return fssh_release_sem_etc(lock->sem, FSSH_RW_MAX_READERS, 0);