Fix: #38

Squashed commit of the following:

commit ff72105e1ec81b5679401b021fb44e8135444de8
Author: weisd <weishidavip@163.com>
Date:   Sat Oct 5 09:55:09 2024 +0800

    base bucketmetadata_sys done

commit 69d0c7725ae1065d25755c71aa54e42c4f3cdb50
Author: weisd <weishidavip@163.com>
Date:   Sat Oct 5 01:41:19 2024 +0800

    update bucket tagging op use bucketmetadata_sys

commit 39902c73d6f7a817041245af84a23d14115c70dc
Author: weisd <weishidavip@163.com>
Date:   Fri Oct 4 23:32:07 2024 +0800

    test bucketmetadata_sys

commit 15f1dfc765dc383ab26d71aca7c64dd0917b83f3
Author: weisd <weishidavip@163.com>
Date:   Fri Oct 4 23:21:58 2024 +0800

    init bucketmetadata_sys

commit 8c3c5e0f7385fa881b1dc4811d92afe8b86e9a6f
Author: weisd <weishidavip@163.com>
Date:   Tue Oct 1 23:06:09 2024 +0800

    init bucketmetadata_sys

commit e2746d154aa68be9dcf8add0241b38c72ef89b9c
Author: weisd <weishidavip@163.com>
Date:   Tue Oct 1 04:35:25 2024 +0800

    stash

TODO.md

@@ -2,18 +2,18 @@
 
 ## 基础存储
 
-- [ ] EC可用读写数量判断 Read/WriteQuorum
-- [ ] 优化并发执行，边读边取，可中断
+- [x] EC可用读写数量判断 Read/WriteQuorum
+- [ ] 优化后台并发执行，可中断
 - [ ] 小文件存储到metafile, inlinedata
 - [ ] 完善bucketmeta
-- [ ] 对象锁
-- [ ] 代码优化 使用范型？
-- [ ] 抽象出metafile存储
-- [ ] 边读写边hash
+- [x] 对象锁
+- [ ] 边读写边hash，实现reader嵌套
 - [x] 远程rpc
 - [x] 错误类型判断,程序中判断错误类型，如何统一错误
 - [x] 优化xlmeta, 自定义msg数据结构
-- [x] appendFile, createFile, readFile, walk_dir sync io
+- [ ] 优化io.reader 参考 GetObjectNInfo 方便io copy 如果 异步写，再平衡
+- [ ] 代码优化 使用范型？
+- [ ] 抽象出metafile存储
 
 ## 基础功能