Oren Eini

aka Ayende Rahien

Oren Eini

CEO of RavenDB

a NoSQL Open Source Document Database

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oren@ravendb.net

+972 52-548-6969

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RavenDB - Version 6.2 Now Live

Aug 22 2005

Boo's Design By Contract

time to read 2 min | 265 words

Sorry for being so silent lately, I've been struggling to get Desing By Contract working for Boo. I got myself into some problems there that I had some really tough time to crack. I'm glad to say that I passed the most major hurdle, which is to get the code to compile the output correctly. It was a touch & go for a while, but I've managed to get it to work as I wanted it.

I've been struggling with this particular problem for a four days or so, trying different work arounds until I found one that work. The code is ugly as hell (and I've a second opinion on that :-) ), but it is working. I'm going to write some test cases* for that and then I'll start making the code more pleasant on the eye.

If you want to read it, the code is available here**, ***.

* Yes, in this particular instance I was walking in to a complete and unknown territory. I wrote code and immediately verified the output myself. I went testless to explor the new territory. Now that I know the lay of the land, I know what I need to test for.

** Not for the faint of heart.

*** This is going to stay up only for a few days, hopefully.

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FUTURE POSTS

Partial writes, IO_Uring and safety - about one day from now
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RECENT COMMENTS

That's why it is a good idea to compare the return value of `write` to the buffer size. "size_t" can be 32-bit on some system...

By Dmitry on Answer: What does this code do?
There's a reason we miss `write_exact` and `read_exact` from the standard library. In fact, I am surprised the chunk is actua...

By Pyth0n on Challenge: What does this code do?
kpvleeuwen, I agree, unfortunately I don't have anyone to ask off the top of my head. Thanks, I fixed the headers.

By Oren Eini on Performance discovery: IOPS vs. IOPS
It could be interesting to reach out to storage firmware developers and ask what write patterns they think would be useful ex...

By kpvleeuwen on Performance discovery: IOPS vs. IOPS
Nicholas, You _can_ use the spread operator in RavenDB, which is what I assume you meant, like this: let results = ...

By Oren Eini on Aggregating trees with RavenDB

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