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fix read_data bug & use in read_standard_header #112

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merged 1 commit into from
May 11, 2021

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StefanKarpinski
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The read_data(::iO) method previously used a single call to readbytes! which is incorrect since readbytes! only reads as many bytes as is currently available and doesn't block to get more data. This change fixes that bug by using read! with a view buffer, which was only added to Base in Julia 1.4, so this also conditionally adds that method to read! if necessary.

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codecov bot commented May 11, 2021

Codecov Report

Merging #112 (3a212cc) into master (f06ba79) will decrease coverage by 0.41%.
The diff coverage is 84.21%.

Impacted file tree graph

@@            Coverage Diff             @@
##           master     #112      +/-   ##
==========================================
- Coverage   96.47%   96.05%   -0.42%     
==========================================
  Files           4        4              
  Lines         681      685       +4     
==========================================
+ Hits          657      658       +1     
- Misses         24       27       +3     
Impacted Files Coverage Δ
src/Tar.jl 92.77% <50.00%> (-3.34%) ⬇️
src/extract.jl 96.59% <100.00%> (-0.02%) ⬇️

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@StefanKarpinski
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Wow, I seem to have hung all the 32-bit tests except for one.

Also make sure that buffer views are constructed with `Int` ranges.
Otherwise on 32-bit systems a 64-bit buffer view cannot be converted to
a pointer, which causes problems. This entails checking for too large
size values in a few places and casting to `Int` in a few more places
where we know a value has to fit into a native `Int`.
@StefanKarpinski StefanKarpinski merged commit fdeec31 into master May 11, 2021
@StefanKarpinski StefanKarpinski deleted the sk/fix-read-data branch May 11, 2021 17:03
StefanKarpinski added a commit that referenced this pull request May 11, 2021
Also make sure that buffer views are constructed with `Int` ranges.
Otherwise on 32-bit systems a 64-bit buffer view cannot be converted to
a pointer, which causes problems. This entails checking for too large
size values in a few places and casting to `Int` in a few more places
where we know a value has to fit into a native `Int`.

(cherry picked from commit fdeec31)
ranocha added a commit to ranocha/Tar.jl that referenced this pull request Sep 6, 2022
This improves type stability and fixes some invalidations when loading ArrayInterface.jl.
It follows the approach of JuliaIO#112 to cast the optional argument of readbytes! to an Int.
ranocha added a commit to ranocha/Tar.jl that referenced this pull request Sep 6, 2022
This improves type stability and fixes some invalidations when loading ArrayInterface.jl.
It follows the approach of JuliaIO#112 to cast the optional argument of readbytes! to an Int.
staticfloat pushed a commit that referenced this pull request Sep 8, 2022
This improves type stability and fixes some invalidations when loading ArrayInterface.jl.
It follows the approach of #112 to cast the optional argument of readbytes! to an Int.
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