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Re: std::ifstream multithread

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On 2011-05-27 15:19:31 +0200, Victor Bazarov said:

> On 5/27/2011 9:04 AM, Philipp Kraus wrote:
>> On 2011-05-27 14:31:05 +0200, Victor Bazarov said:
>> 
>>> On 5/27/2011 6:22 AM, Philipp Kraus wrote:
>>>> I must read a lot of files like this
>>>> 
>>>> std::ifstream l_file;
>>>> 
>>>> l_file.open(p_str1.c_str(), std::ifstream::binary);
>>>> std::copy( std::istream_iterator<char>(l_file),
>>>> std::istream_iterator<char>(),
>>>> std::ostreambuf_iterator<char>(&l_deflate) );
>>>> l_file.close();
>>>> 
>>>> I deflate the file content with bzip. I would do this in a multithread
>>>> content, so my question is, can I do this without any problems during
>>>> reading?
>>>> In some cases two thread can use the same file (p_str1 is in two threads
>>>> equal). Can i read the same file out of two thread or is a mutex
>>>> required?
>>> 
>>> You need to consult your compiler and/or standard library manual.
>> 
>> I use g++ and Visual Studio, du you know anything about it? In my option
>> the OS should be manage the access to the files.
> 
> Sorry, specific compilers are discussed in their specific newsgroups.  
> A particular OS is discussed in its newsgroup.  Use the right venue for 
> your inquiries, OK?  Or just google.

Thx

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std::ifstream multithread Philipp Kraus <philipp.kraus@flashpixx.de> - 2011-05-27 12:22 +0200
  Re: std::ifstream multithread Victor Bazarov <v.bazarov@comcast.invalid> - 2011-05-27 08:31 -0400
    Re: std::ifstream multithread Philipp Kraus <philipp.kraus@flashpixx.de> - 2011-05-27 15:04 +0200
      Re: std::ifstream multithread Victor Bazarov <v.bazarov@comcast.invalid> - 2011-05-27 09:19 -0400
        Re: std::ifstream multithread Philipp Kraus <philipp.kraus@flashpixx.de> - 2011-05-27 16:51 +0200
  Re: std::ifstream multithread Jorgen Grahn <grahn+nntp@snipabacken.se> - 2011-05-27 15:17 +0000

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