Add the support of the BZMPOP command

[infdahai]

Search before asking

• I had searched in the issues and found no similar issues.

Motivation

This issue considers to support bzmpop, bzpopmax, bzpopmin commands.

And the implementation should process a timeout argument.

Solution

• bzmpop
• bzpopmax
• bzpopmin

Are you willing to submit a PR?

• I'm willing to submit a PR!

[git-hulk]

@infdahai Would you like to do this?

[infdahai]

I can accept this task for now but it needs time.

And more specifically, I want to use bzpop<max|min|null>, <z|s>intercard, zmpop go APIs to write some go-unit tests for supporting the more commands from zset or set in kvrocks. These commands from redis(version >= 6.2) are not implemented in this project.

Because I want to implement all commands from zset. If anyone wants to get involved in this task, you can just reply under this issue.

[Yangsx-1]

I want to participate in the task, can i contact you through wechat or other ways?

[infdahai]

@git-hulk please invite him to wechat groups. Mabye you can search the TimerCB funcs in the codebase to learn how to add the event to the loop. And we can talk the impl here to help others also know the progress.

[git-hulk]

Please follow the WeChat Official Account at the bottom of README.md, then join the WeChat group via the guidance.

But we encourage everyone to discuss the proposal or solution via GitHub Discussion instead of a private channel.

[Yangsx-1]

Ok, I'm already in the group and i'll look into the code. I’m new in here, may i'll have many questions, lol.

[Yangsx-1]

I think it's bzpopmax rather than bzmpopmax.

[infdahai]

I think it's bzpopmax rather than bzmpopmax.

Thanks, fixed

[PragmaTwice]

Note: As an ASF community, we do not endorse any discussion on some private channels like wechat group.

We prefer public available discussion like GitHub issues, discussions and ASF mailing lists. Feel free to post your questions on these platform.

[Yangsx-1]

Note: As an ASF community, we do not endorse any discussion on some private channels like wechat group.

We prefer public available discussion like GitHub issues, discussions and ASF mailing lists. Feel free to post your questions on these platform.

Ok, i'm just a little shy. I'll post my question if i cannot overcome it.

[Yangsx-1]

I‘ve already finish the code, and have tested it manually.
I'm now trying to add some go tests but i'm not very familiar with go and go test.
I want to know how to run single test for zset, i tried several ways but it didn't work. :(

[git-hulk]

I‘ve already finish the code, and have tested it manually. I'm now trying to add some go tests but i'm not very familiar with go and go test. I want to know how to run single test for zset, i tried several ways but it didn't work. :(

Hi @Yangsx-1, You can reach me on Slack if you need help.

[PragmaTwice]

I‘ve already finish the code, and have tested it manually.
I'm now trying to add some go tests but i'm not very familiar with go and go test.
I want to know how to run single test for zset, i tried several ways but it didn't work. :(

Try something like ./x.py test go <build-dir> -run <match-str>.

And you can refer to go test --help for more information about the -run option.

[Yangsx-1]

Ok, I'll try it first. I'll contact you if i have some problems later @git-hulk