Function dfs_file_getdents

components/dfs/dfs_v2/src/dfs_file.c:2316–2345

* @brief Read directory entries * * This function reads directory entries from the directory file descriptor into * the buffer provided. Each entry is stored as a struct dirent. * * @param[in] file Pointer to the directory file structure * @param[out] dirp Buffer to store directory entries * @param[in] nbytes Size of the buffer in bytes * * @return int Number of bytes read on success, or

 *         -RT_ERROR for general errors
 */
int dfs_file_getdents(struct dfs_file *file, struct dirent *dirp, size_t nbytes)
{
    int ret = -RT_ERROR;

    if (file)
    {
        if (file->vnode && S_ISDIR(file->vnode->mode))
        {
            if (file->fops && file->fops->getdents)
            {
                DLOG(msg, "dfs_file", file->dentry->mnt->fs_ops->name, DLOG_MSG, "fops->getdents()");

                if (dfs_is_mounted(file->vnode->mnt) == 0)
                {
                    ret = file->fops->getdents(file, dirp, nbytes);
                }
                else
                {
                    ret = -EINVAL;
                }
            }
        }
    }
    else
    {
        ret = -EBADF;
    }

    return ret;
}

/**
 * @brief Check if a path refers to a directory