Function _sftx_destroy

components/lwp/lwp_futex.c:266–284

* @brief Destroy a Shared FuTeX (sftx) * * @param[in] data Pointer to the futex to be destroyed (cast from void* to rt_futex_t) * * @return RT_EOK (0) on success, -1 on failure * * @note This function: * - Deletes the futex from global table. * - Deletes and nullifies the futex mutex. * - Frees the futex memory. */

 *       - Frees the futex memory.
 */
static rt_err_t _sftx_destroy(void *data)
{
    rt_err_t ret = -1;
    rt_futex_t futex = (rt_futex_t)data;

    if (futex)
    {
        /* delete it even it's not in the table */
        futex_global_table_delete(&futex->entry.key);
        if (futex->mutex)
        {
            rt_mutex_delete(futex->mutex);
            futex->mutex = RT_NULL;
        }
        rt_free(futex);
        ret = 0;
    }
    return ret;
}

/**
 * @brief Create a Shared FuTeX (sftx)