Function dfs_vnode_destroy

components/dfs/dfs_v2/src/dfs_vnode.c:73–113

* @brief Destroy a virtual node (vnode) and free its resources * * @param[in] vnode Pointer to the vnode to be destroyed * * @return int Always returns 0. Note that this does not guarantee success, as errors may occur internally. */

 * @return int Always returns 0. Note that this does not guarantee success, as errors may occur internally.
 */
int dfs_vnode_destroy(struct dfs_vnode* vnode)
{
    rt_err_t ret = RT_EOK;

    if (vnode)
    {
        ret = dfs_file_lock();
        if (ret == RT_EOK)
        {
            if (rt_atomic_load(&(vnode->ref_count)) == 1)
            {
                LOG_I("free a vnode: %p", vnode);
#ifdef RT_USING_PAGECACHE
                if (vnode->aspace)
                {
                    dfs_aspace_destroy(vnode->aspace);
                }
#endif
                if (vnode->mnt)
                {
                    DLOG(msg, "vnode", vnode->mnt->fs_ops->name, DLOG_MSG, "fs_ops->free_vnode");
                    vnode->mnt->fs_ops->free_vnode(vnode);
                }
                else
                {
                    DLOG(msg, "vnode", "vnode", DLOG_MSG, "destroy vnode(mnt=NULL)");
                }

                dfs_file_unlock();

                rt_free(vnode);
            }
            else
            {
                dfs_file_unlock();
            }
        }
    }

    return 0;
}

/**
 * @brief Increase reference count of a virtual node (vnode)