Re: [pcp] GSOC 2016 idea for PCP

[Charles Cui <charles.cui1984@xxxxxxxxx>]

Got the idea, Thanks.

2016-03-13 12:42 GMT-07:00 Ken McDonell <kenj@xxxxxxxxxxxxxxxx>:
> On 13/03/16 15:17, Charles Cui wrote:
>>
>> Hi Lukas,
>>
>>     Some updates for this project.
>> I tried to install and use simple and trivial pmda, and they can
>> report me the expected metrics.
>> Now, I am thinking of steps of writing the pmds using golang.
>> Some thoughts are given below, correct me if I am wrong.
>> Basically, there are 2 ways to go.
>> 1>  I need to at first to create a wrapper of lib pcp_pmda using golang,
>> where
>> provides similar name to functions in lib pcp_pmda but implemented
>> using golang.
>> For each function in the wrapper, it calls the lib pcp_pmda to
>> complete the function.
>> Then, create an agent (with golang) to talk with my wrapper.
>> or
>> 2> rewrite lib pcp_pmda using golang
>>
>> which way is preferred by the community?
>
>
> G'day Charles.
>
> Wrappers are definitely the way for any language other than C.  There are
> existing examples for Perl and Python in the code base.
>
> You can use dbpmda(1) to debug this in a way that allows you to build up the
> wrapper layer in incremental stages, rather than requiring a complete
> implementation before debugging with the PMDA being called from pmcd.
>
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