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Re: [Lzip-bug] How to reset a LZ_Decoder

From: Jacob Rief
Subject: Re: [Lzip-bug] How to reset a LZ_Decoder
Date: Fri, 18 Dec 2009 17:42:32 +0100

Hello Laszlo,
well, LZ_decompress_open() invokes at least three allocations on the
heap, one of which allocates 64kB.

2009/12/18 Ersek, Laszlo <address@hidden>:
> On Fri, 18 Dec 2009, Jacob Rief wrote:
>> Assume the buffers and flags of an LZ_Decoder are filled with some kind of
>> data, but for some reason (for instance a stream corruption) you want
>> forward up to the next member and start decompression from there.
> Such functionality might be very useful for parallelizing decompression, at
> least that of multi-member files.
>> Thus instead of destroying and recreating a LZ_Decoder, a useful function
>> would be to somehow clear the buffers and reset the internal flags to a
>> state equivalent to a decoder just after creation,
> Why is the destroy/recreate way unsuitable? Does it incur a performance
> penalty too big? (I have no idea.)
> Thanks,
> lacos
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