Function _futex_lock

components/lwp/lwp_futex.c:43–59

* @brief Locks the global futex with specified operation flags * * @param[in] lwp Pointer to the lightweight process structure * @param[in] op_flags Operation flags (e.g., FUTEX_PRIVATE) * * @note This function handles locking of futexes, either using process-local locking * (when FUTEX_PRIVATE flag is set) or global futex locking mechanism. */

 *       (when FUTEX_PRIVATE flag is set) or global futex locking mechanism.
 */
static void _futex_lock(rt_lwp_t lwp, int op_flags)
{
    rt_err_t error;
    if (op_flags & FUTEX_PRIVATE)
    {
        LWP_LOCK(lwp);
    }
    else
    {
        error = lwp_mutex_take_safe(&_glob_futex, RT_WAITING_FOREVER, 0);
        if (error)
        {
            LOG_E("%s: Should not failed", __func__);
            RT_ASSERT(0);
        }
    }
}

/**
 * @brief Unlocks the global futex with specified operation flags