Add virtual destructors to MongoServiceAdaptor and SpanFilter

[yozhao]

What problem does this PR solve?

Issue Number:

Problem Summary:

What is changed and the side effects?

Changed:

Side effects:

• Performance effects(性能影响):

• Breaking backward compatibility(向后兼容性):

---

Check List:

• Please make sure your changes are compilable(请确保你的更改可以通过编译).
• When providing us with a new feature, it is best to add related tests(如果你向我们增加一个新的功能, 请添加相关测试).
• Please follow Contributor Covenant Code of Conduct.(请遵循贡献者准则).

[yozhao]

Fix non-virtual-dtor warning or error

[yozhao]

嗯 大意了，改过来了。

lei he @.***> 于2024年5月24日周五 14:16写道：

@.**** commented on this pull request.

In src/brpc/span.h https://github.com/apache/brpc/pull/2651#discussion_r1612875583:

@@ -206,6 +206,7 @@ void AnnotateSpan(const char* fmt, ...);

class SpanFilter { public:

• virtual ~SpanFilter() = 0;

定义成纯虚函数最后链接会出错吧。。 virtual ~SpanFilter() = default 比较好

— Reply to this email directly, view it on GitHub https://github.com/apache/brpc/pull/2651#pullrequestreview-2075880770, or unsubscribe https://github.com/notifications/unsubscribe-auth/AAVHRJ342JMQKAAVVHLD323ZD3LKXAVCNFSM6AAAAABIG43P7GVHI2DSMVQWIX3LMV43YUDVNRWFEZLROVSXG5CSMV3GSZLXHMZDANZVHA4DANZXGA . You are receiving this because you authored the thread.Message ID: @.***>