std.zip expand: memory allocation failed
Steven Schveighoffer
schveiguy at gmail.com
Tue Oct 26 13:43:36 UTC 2021
On 10/26/21 2:32 AM, bauss wrote:
> On Monday, 25 October 2021 at 22:38:38 UTC, Imperatorn wrote:
>> On Monday, 25 October 2021 at 20:50:40 UTC, Steven Schveighoffer wrote:
>>> On 10/24/21 8:00 AM, Selim Ozel wrote:
>>>
>>>> It turns out my computer was literally running out of memory as the
>>>> file was getting unzipped. For some reason to uncompress a 1-gig
>>>> file with uncompressed size of 4-gig, Zip Archive of D-Lang tries to
>>>> use more than 16 gig of RAM. I don't know why. Maybe I missed
>>>> something. I use a Windows 10, DMD v2.091 with x86_mscoff.
>>>
>>> Wait, x86 is 32-bit. Max address space is 4GB. So maybe it was just
>>> trying to use 4GB and running out of memory?
>>>
>>> -Steve
>>
>> Good catch, but still, should it use so much memory?
>
> Definitely not. It shouldn't use a lot of memory when unzipping as it
> should be done in chunks!
You guys aren't getting it:
```
ubyte[] expand(ArchiveMember de);
Decompress the contents of a member.
Fills in properties extractVersion, flags, compressionMethod, time,
crc32, compressedSize, expandedSize, expandedData[], name[], extra[].
```
Where is it supposed to store that `ubyte[]`?
-Steve
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