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<
crystal-gh>
crystal/master 0d0c888 Ary Borenszweig: Fixed #476: Inherited class inherits enum but can't access its values by name
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crystal-gh>
crystal/master a37eab9 Ary Borenszweig: Put back block return type in Matrix::new
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crystal-gh>
crystal/master 8553f39 Ary Borenszweig: Fixed: Array#[...] and Array#[,] were not safe in some cases, and optimized them a bit
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crystal-gh>
crystal/master c26318f Shannon Skipper: Add an optional #each_with_index offset param...
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crystal-gh>
crystal/master 4623bde Ary Borenszweig: Merge pull request #475 from havenwood/offset...
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travis-ci>
manastech/crystal#2125 (master - 4623bde : Ary Borenszweig): The build passed.
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weskinner_work>
is asynchronous File.read implemented?
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weskinner_work>
or will that be on the user to do in spawn {} ?
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asterite>
File.read is never asynchronous because of how the OS works
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asterite>
So... even if we set a file to be non-block, when we read we always get data
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asterite>
But Socket is
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weskinner_work>
if LibC.errno == Errno::EAGAIN
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weskinner_work>
readers << Fiber.current
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weskinner_work>
Scheduler.reschedule
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weskinner_work>
ok so if we're in non blocking mode and the OS doesn't have anything for us we reschedule
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weskinner_work>
but right now File defaults to blocking
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asterite>
Yes, but that's because the OS will never give you EAGAIN
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asterite>
so we just don't check it redundantly
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asterite>
(that is, with files)
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asterite>
Or at least that's what waj told me :)
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weskinner_work>
you mean it will just block instead?
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asterite>
I think so, have to ask waj
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asterite>
but it never blocks, because the OS already has some things cached
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weskinner_work>
I'm thinking it HAS to either block or return EGAIN if you were to do: "loop do; fdio.read(big_slice); end"
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weskinner_work>
the FS couldn't keep up with it
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