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Re: std::ifstream multithread

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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.

V
-- 
I do not respond to top-posted replies, please don't ask

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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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