Function list_fd

components/dfs/dfs_v2/src/dfs.c:1107–1148

* @brief List all open file descriptors in the current process * * @return int 0 on success, -1 if failed to get file descriptor table */

 * @return int 0 on success, -1 if failed to get file descriptor table
 */
int list_fd(void)
{
    int index;
    struct dfs_fdtable *fd_table;

    fd_table = dfs_fdtable_get();
    if (!fd_table) return -1;

    rt_enter_critical();

    rt_kprintf("fd type    ref magic  path\n");
    rt_kprintf("-- ------  --- ----- ------\n");
    for (index = 0; index < (int)fd_table->maxfd; index++)
    {
        struct dfs_file *file = fd_table->fds[index];

        if (file && file->vnode)
        {
            rt_kprintf("%2d ", index);
            if (file->vnode->type == FT_DIRECTORY)    rt_kprintf("%-7.7s ", "dir");
            else if (file->vnode->type == FT_REGULAR) rt_kprintf("%-7.7s ", "file");
            else if (file->vnode->type == FT_SOCKET)  rt_kprintf("%-7.7s ", "socket");
            else if (file->vnode->type == FT_USER)    rt_kprintf("%-7.7s ", "user");
            else if (file->vnode->type == FT_DEVICE)  rt_kprintf("%-7.7s ", "device");
            else rt_kprintf("%-8.8s ", "unknown");
            rt_kprintf("%3d ", file->ref_count);
            rt_kprintf("%04x  ", file->magic);

            if (file->dentry)
            {
                rt_kprintf("%s%s\n", file->dentry->mnt->fullpath, file->dentry->pathname);
            }
            else
            {
                rt_kprintf("\n");
            }
        }
    }
    rt_exit_critical();

    return 0;
}
MSH_CMD_EXPORT(list_fd, list file descriptor);

/**