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cmuratori's profile
Casey Muratori
Casey Muratori
Casey Muratori
@cmuratori

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Casey Muratori

@cmuratori

I'm worried that the baby thinks people can't change.

Seattle
caseymuratori.com
Joined March 2009

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    1. .-.‏ @matchthreee 17 Jul 2018

      @Jonathan_Blow what happens when you run out of temporary storage? For applications that don't know the maximum size in advance, is using it a bad idea?

      1 reply 0 retweets 0 likes
    2. This Tweet is unavailable.
    3. Casey Muratori‏ @cmuratori 18 Jul 2018
      Replying to @Jonathan_Blow @matchthreee

      FWIW you don't have to leak it. Once you have memory arenas (which you do), you just do temporary storage as a memory arena instead of a fixed buffer. Then it can grow, and it will always free properly. This is the "right way", in my opinion, and how 1935 works.

      3 replies 0 retweets 17 likes
    4. Andrew Kelley‏ @andy_kelley 19 Jul 2018
      Replying to @cmuratori @Jonathan_Blow @matchthreee

      But then you're just making the problem when to free the arena. And if the arena is used for temporary storage, there might never be a time that it is safe to do that.

      1 reply 0 retweets 1 like
    5. This Tweet is unavailable.
    6. Andrew Kelley‏ @andy_kelley 19 Jul 2018
      Replying to @Jonathan_Blow @cmuratori @matchthreee

      Right, so if the thread's lifetime is the same as the application's lifetime, then this is equivalent to a leak. What about making allocators a userland concept? E.g. you'd explicitly pass an allocator as a parameter to anything that needed to allocate.

      0 replies 0 retweets 0 likes
    7. This Tweet is unavailable.
    8. Andrew Kelley‏ @andy_kelley 19 Jul 2018
      Replying to @Jonathan_Blow @cmuratori @matchthreee

      The OS knows about all your memory and will free it when your program exits. So by your definition memory leaks don't exist.

      1 reply 0 retweets 0 likes
      Casey Muratori‏ @cmuratori 19 Jul 2018
      Replying to @andy_kelley @Jonathan_Blow @matchthreee

      This whole thread is wrong (this paradigm does not leak) but Twitter is a pain in the ass. Figuring out why it doesn't leak is left for an exercise to the reader.

      3:14 PM - 19 Jul 2018
      1 reply 0 retweets 0 likes
        1. New conversation
        2. Andrew Kelley‏ @andy_kelley 19 Jul 2018
          Replying to @cmuratori @Jonathan_Blow @matchthreee

          I'm guessing that you're assuming a video game, and therefore assuming that you can free all temporary storage between frames, while I'm talking about general purpose programming where there is not necessarily a "between frames" time, and therefore leaks are possible.

          1 reply 0 retweets 0 likes
        3. Casey Muratori‏ @cmuratori 19 Jul 2018
          Replying to @andy_kelley @Jonathan_Blow @matchthreee

          No, I am not, and I do this in all my art pipeline tools as well.

          1 reply 0 retweets 0 likes
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