Function copyfile

components/dfs/dfs_v1/src/dfs_file.c:900–955

#ifdef DFS_USING_POSIX
#define BUF_SZ  4096
static void copyfile(const char *src, const char *dst)
{
    struct dfs_file fd;
    struct dfs_file src_fd;
    rt_uint8_t *block_ptr;
    rt_int32_t read_bytes;

    block_ptr = (rt_uint8_t *)rt_malloc(BUF_SZ);
    if (block_ptr == NULL)
    {
        rt_kprintf("out of memory\n");

        return;
    }

    fd_init(&src_fd);
    if (dfs_file_open(&src_fd, src, O_RDONLY) < 0)
    {
        rt_free(block_ptr);
        rt_kprintf("Read %s failed\n", src);

        return;
    }
    fd_init(&fd);
    if (dfs_file_open(&fd, dst, O_WRONLY | O_CREAT | O_TRUNC) < 0)
    {
        rt_free(block_ptr);
        dfs_file_close(&src_fd);

        rt_kprintf("Write %s failed\n", dst);

        return;
    }

    do
    {
        read_bytes = dfs_file_read(&src_fd, block_ptr, BUF_SZ);
        if (read_bytes > 0)
        {
            int length;

            length = dfs_file_write(&fd, block_ptr, read_bytes);
            if (length != read_bytes)
            {
                /* write failed. */
                rt_kprintf("Write file data failed, errno=%d\n", length);
                break;
            }
        }
    }
    while (read_bytes > 0);

    dfs_file_close(&src_fd);
    dfs_file_close(&fd);
    rt_free(block_ptr);
}

extern int mkdir(const char *path, mode_t mode);