Exemplos de dfs_romfs_lookup em C++ (Cpp)

Exemplo n.º 1

Arquivo: dfs_romfs.c Projeto: 765450034/rt-thread

int dfs_romfs_open(struct dfs_fd *file)
{
	rt_size_t size;
	struct romfs_dirent *dirent;
	struct romfs_dirent *root_dirent;

	root_dirent = (struct romfs_dirent *)file->fs->data;

	if (file->flags & (DFS_O_CREAT | DFS_O_WRONLY | DFS_O_APPEND | DFS_O_TRUNC | DFS_O_RDWR))
		return -DFS_STATUS_EINVAL;

	dirent = dfs_romfs_lookup(root_dirent, file->path, &size);
	if (dirent == RT_NULL)
		return -DFS_STATUS_ENOENT;

	/* entry is a directory file type */
	if (dirent->type == ROMFS_DIRENT_DIR)
	{
		if (!(file->flags & DFS_O_DIRECTORY))
			return -DFS_STATUS_ENOENT;
	}
	else
	{
		/* entry is a file, but open it as a directory */
		if (file->flags & DFS_O_DIRECTORY)
			return -DFS_STATUS_ENOENT;
	}

	file->data = dirent;
	file->size = size;
	file->pos = 0;

	return DFS_STATUS_OK;
}

Exemplo n.º 2

Arquivo: dfs_romfs.c Projeto: 765450034/rt-thread

int dfs_romfs_stat(struct dfs_filesystem *fs, const char *path, struct stat *st)
{
	rt_size_t size;
	struct romfs_dirent *dirent;
	struct romfs_dirent *root_dirent;

	root_dirent = (struct romfs_dirent *)fs->data;
	dirent = dfs_romfs_lookup(root_dirent, path, &size);

	if (dirent == RT_NULL)
		return -DFS_STATUS_ENOENT;

	st->st_dev = 0;
	st->st_mode = DFS_S_IFREG | DFS_S_IRUSR | DFS_S_IRGRP | DFS_S_IROTH |
	DFS_S_IWUSR | DFS_S_IWGRP | DFS_S_IWOTH;

	if (dirent->type == ROMFS_DIRENT_DIR)
	{
		st->st_mode &= ~DFS_S_IFREG;
		st->st_mode |= DFS_S_IFDIR | DFS_S_IXUSR | DFS_S_IXGRP | DFS_S_IXOTH;
	}

	st->st_size = dirent->size;
	st->st_mtime = 0;
	st->st_blksize = 512;

	return DFS_STATUS_OK;
}

Exemplo n.º 3

Arquivo: dfs_romfs.c Projeto: onelife/rt-thread

int dfs_romfs_open(struct dfs_fd *file)
{
    rt_size_t size;
    struct romfs_dirent *dirent;
    struct romfs_dirent *root_dirent;
    struct dfs_filesystem *fs;

    fs = (struct dfs_filesystem *)file->data;
    root_dirent = (struct romfs_dirent *)fs->data;

    if (check_dirent(root_dirent) != 0)
        return -EIO;

    if (file->flags & (O_CREAT | O_WRONLY | O_APPEND | O_TRUNC | O_RDWR))
        return -EINVAL;

    dirent = dfs_romfs_lookup(root_dirent, file->path, &size);
    if (dirent == NULL)
        return -ENOENT;

    /* entry is a directory file type */
    if (dirent->type == ROMFS_DIRENT_DIR)
    {
        if (!(file->flags & O_DIRECTORY))
            return -ENOENT;
    }
    else
    {
        /* entry is a file, but open it as a directory */
        if (file->flags & O_DIRECTORY)
            return -ENOENT;
    }

    file->data = dirent;
    file->size = size;
    file->pos = 0;

    return RT_EOK;
}