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wycats's profile
Yehuda Katz 🥨
Yehuda Katz 🥨
Yehuda Katz  🥨
Verified account
@wycats

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Yehuda Katz  🥨Verified account

@wycats

Tilde Co-Founder, OSS enthusiast and world traveler.

Portland, OR
yehudakatz.com
Joined August 2007

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    1. Yehuda Katz  🥨‏Verified account @wycats 6 Nov 2017
      Replying to @wycats @jen20 @mj_langford

      It implies there's something special about targeting OSX+Linux and calling it "Unix" even though there are 2 diff implementations.

      1 reply 0 retweets 2 likes
    2. Yehuda Katz  🥨‏Verified account @wycats 6 Nov 2017
      Replying to @wycats @jen20 @mj_langford

      It implies to people that *Windows is harder* but really it's just a third distinct thing to target.

      1 reply 0 retweets 0 likes
    3. isaacspooky  💙 💜 💖 🏳️‍🌈‏Verified account @izs 6 Nov 2017
      Replying to @wycats

      In this context, for most, “Unix” means OS X + Linux. They ARE more similar to eachother than windows, by a lot. Biggest delta: path strings

      2 replies 0 retweets 1 like
    4. Yehuda Katz  🥨‏Verified account @wycats 6 Nov 2017
      Replying to @izs

      1: Yes, I think paths are a big deal. path.join is more or less good enough. Everyone going around convincing each other that it's not

      2 replies 0 retweets 3 likes
    5. Yehuda Katz  🥨‏Verified account @wycats 6 Nov 2017
      Replying to @wycats @izs

      2: actually very important ("windows supports `/` yo" "uhhh not with verbatim paths") has been a huge huge regression.

      4 replies 0 retweets 1 like
    6. Yehuda Katz  🥨‏Verified account @wycats 6 Nov 2017
      Replying to @wycats @izs

      3: But I think you're underestimating epoll/kqueue shimming, compiler/linker shimming, OpenSSL/crypto shimming, etc.

      2 replies 0 retweets 1 like
    7. Yehuda Katz  🥨‏Verified account @wycats 6 Nov 2017
      Replying to @wycats @izs

      4: OSX and Linux share a path model (but not exactly a file system model), but they diverge a huge amount in general.

      2 replies 0 retweets 0 likes
    8. Yehuda Katz  🥨‏Verified account @wycats 6 Nov 2017
      Replying to @wycats @izs

      5: the reason most people don't perceive that is that a lot of "Unix" libraries are actually just "shimming the union of OSX and Linux"

      1 reply 0 retweets 2 likes
    9. Yehuda Katz  🥨‏Verified account @wycats 6 Nov 2017
      Replying to @wycats @izs

      6: epoll and kqueue are a good enough exemplar of this phenomenon to drive a discussion about this, but there's way more.

      2 replies 0 retweets 0 likes
    10. Yehuda Katz  🥨‏Verified account @wycats 6 Nov 2017
      Replying to @wycats @izs

      7: for a fun time, check out the practical divergences in the Rust mio library (equiv of libuv): https://github.com/carllerche/mio/blob/91f0832036303c7f83c286e049e31be29c43b519/src/sys/unix/mod.rs …

      1 reply 0 retweets 0 likes
      Yehuda Katz  🥨‏Verified account @wycats 6 Nov 2017
      Replying to @wycats @izs

      8/8: In practice, getting enough core infra to support all of Linux/OSX/Windows is harder than just Linux/OSX but important.

      9:41 AM - 6 Nov 2017
      1 reply 0 retweets 0 likes
        1. New conversation
        2. isaacspooky  💙 💜 💖 🏳️‍🌈‏Verified account @izs 6 Nov 2017
          Replying to @wycats

          It’s not just harder. It’s impossible to do without leaking to the app level significantly, if the app touches paths or signals.

          1 reply 0 retweets 0 likes
        3. Yehuda Katz  🥨‏Verified account @wycats 6 Nov 2017
          Replying to @izs

          Paths can be largely abstracted, signals shouldn't be used directly, but something approximating the signal mental model is fine.

          1 reply 0 retweets 0 likes
        4. Yehuda Katz  🥨‏Verified account @wycats 6 Nov 2017
          Replying to @wycats @izs

          "trap SIGINT" is worse than "handle control-c" but shimming the Unix mental model into Windows (for the common use-cases) is probably fine

          0 replies 0 retweets 0 likes
        5. End of conversation

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