Re: [Boost-users] [iostreams] bzip2 filter fails with large file on Xen system

Subject: Re: [Boost-users] [iostreams] bzip2 filter fails with large file on Xen system
From: eg (egoots_at_[hidden])
Date: 2010-03-25 03:45:53

On 3/24/2010 3:19 PM, Nicola wrote:
> As I've said, it's essentially the example from the Iostreams doc page:
>

Well there are a few, so thanks for posting the specific one.

> #include<fstream>
> #include<iostream>
> #include<boost/iostreams/filtering_streambuf.hpp>
> #include<boost/iostreams/copy.hpp>
> #include<boost/iostreams/filter/bzip2.hpp>
>
> int main(int argc, char * const argv[])
> {
>      using namespace std;
>      using namespace boost::iostreams;
>
>      ifstream file(argv[1], ios_base::in | ios_base::binary);
>      filtering_streambuf<input>  in;
>      in.push(bzip2_decompressor());
>      in.push(file);
>      try {
>        boost::iostreams::copy(in, cout);
>      }
>      catch (std::exception&  e) {
>         std::cout<<  "EXCEPTION CAUGHT: "<<  e.what()<<  std::endl;
>      }
>      return 0;
> }
>
> The output of the above program is
>
> EXCEPTION CAUGHT: bzip2 error
>
> when the argument is a “big” bzipped file (~270Mb).

I tried the above on WinXP with a big bzipped file (~315 Mb) and it 
worked without error. The only change I made was to copy it to an 
ofstream instead of cout (to prevent incessant beeping on my machine).

hmmm.

>
> The program I'm developing also fails to read the compressed file, but
> without errors: it just doesn't read anything. The following is a
> minimal self-contained excerpt that exhibits such behaviour:
>

I wonder if this is related to the reported problem:

https://svn.boost.org/trac/boost/ticket/2411