Julio Merino

Software artist. Writer aficionado. Open source enthusiast. Runner. Father of two.
Currently: Senior Software Engineer at Google, New York City.

  • Kyua: Weekly status report

    Few things worth mentioning this week as reviewing Summer of Code student applications has taken priority. The good thing is that there are several strong applications for NetBSD; the bad thing is that none relate directly to testing. Anyway, the work this week: Added a pkg-config file for atf-sh as well as an Autoconf macro to detect its presence. This is needed by Kyua to easily find atf-sh. (Yes, I know: this is an abuse of pkg-config, but it works pretty well and is consistent with atf-c and atf-c++.

    April 10, 2011 · Continue reading (about 1 minute) · Comments

  • Kyua: Weekly status report

    This week's work has been quite active on the ATF front but not so much in the Kyua one. I keep being incredibly busy on the weekends (read: traveling!) so it's hard to get any serious development work done. What has happened? Finally tracked down and fixed some random atf-run crashes that had been hunting the NetBSD test suite for months (see PR bin/44176). The fix is in reality an ugly workaround for the fact that a work directory cannot be considered "

    April 3, 2011 · Continue reading (about 2 minutes) · Comments

  • Kyua: Weekly status report

    This has been a slow week. In the previous report, I set the goal of getting Kyua to run the NetBSD test suite accurately (i.e. to report the same results as atf-run), and this has been accomplished. Actually, the changes required in Kyua to make this happen were minimal, but I got side-tracked fixing issues in NetBSD itself (both in the test suite and in the kernel!). So, the things done:

    March 27, 2011 · Continue reading (about 3 minutes) · Comments

  • Kyua: Weekly status report

    These days, I find myself talking about Kyua to "many" people. In particular, whenever a new feature request for ATF comes in, I promise the requester that the feature will be addressed as part of Kyua. However, I can imagine that this behavior leaves the requester with mixed feelings: it is nice that the feature will be implemented but, at the same time, it is very hard to know when because the web site of Kyua does not provide many details about its current status.

    March 20, 2011 · Continue reading (about 3 minutes) · Comments

  • A teeny tiny review of Twitterville

    After about two months, I finally finished reading Twitterville by Shel Israel (@shelisrael). One of my followers (@drio) asked for a review of the book, so here is my attempt to do so. But first, a quick summary: Twitterville is a book that focuses on the dynamics of Twitter. It starts by explaining how Twitter works, but that is only a tiny introductory part of the book. The majority of the contents explain how people and business interact with each other by means of Twitter, and it does so by providing lots of real-life stories.

    January 27, 2011 · Continue reading (about 2 minutes) · Comments

  • Injecting C++ functions into Lua

    The C++ interface to Lua implemented in Kyua exposes a lua::state class that wraps the lower-level lua_State* type. This class completely hides the internal C type of Lua to ensure that all calls that affect the state go through the lua::state class. Things get a bit messy when we want to inject native functions into the Lua environment. These functions follow the prototype represented by the lua_CFunction type:typedef int (*lua_CFunction)(lua_State*);Now, let's consider this code:int

    January 17, 2011 · Continue reading (about 2 minutes) · Comments

  • Error handling in Lua: the Kyua approach

    About a week ago, I detailed the different approaches I encountered to deal with errors raised by the Lua C API. Later, I announced the new C++ interface for Lua implemented within Kyua. And today, I would like to talk about the specific mechanism I implemented in this library to deal with the Lua errors. The first thing to keep in mind is that the whole purpose of Lua in the context of Kyua is to parse configuration files.

    January 14, 2011 · Continue reading (about 3 minutes) · Comments

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