Groups > comp.os.linux.development.apps > #166

Re: C++ file locking

From	Ruben Safir <mrbrklyn@panix.com>
Newsgroups	comp.os.linux.development.apps
Subject	Re: C++ file locking
Date	2011-06-27 12:29 +0000
Organization	PANIX Public Access Internet and UNIX, NYC
Message-ID	<iu9t3q$1bd$1@reader1.panix.com> (permalink)
References	<islqdb$rhi$3@reader1.panix.com> <16265495-eb93-4e2e-a46c-f16bb6b19d9e@b1g2000yql.googlegroups.com> <iss4hf$fjr$1@reader1.panix.com> <87y61akryv.fsf@araminta.anjou.terraraq.org.uk>

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Richard Kettlewell <rjk@greenend.org.uk> wrote:
> Ruben Safir <ruben@mrbrklyn.com> writes:
>> Lukas 'Erdk' Redynk wrote:
> 
>>> You could try this:
>>> http://linux.die.net/man/3/lockf
>>> or
>>> http://www.manpagez.com/man/2/fcntl/ - especially F_GETLK and F_SETLK
>>
>> Yes but these both require you to get a file descriptor from the open 
>> call, effectively doing an end run around ios_base.
> 
> Yes.
> 
>> Is there no purely C++ mechanism of do this, or aquiring the file
>> descriptor from iosteams?
> 
> http://gcc.gnu.org/onlinedocs/libstdc++/manual/ext_io.html
> 


I finally got this to work today, which wasn't easy with the
documentation that was provided.  One of the things that puzzled me was
what to use for the template argument.  I used char.

Ruben

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Thread

C++ file locking Ruben Safir <ruben@mrbrklyn.com> - 2011-06-07 18:24 +0000
  Re: C++ file locking "Lukas 'Erdk' Redynk" <mr.erdk@gmail.com> - 2011-06-08 01:37 -0700
    Re: C++ file locking Ruben Safir <ruben@mrbrklyn.com> - 2011-06-10 03:54 +0000
      Re: C++ file locking Richard Kettlewell <rjk@greenend.org.uk> - 2011-06-10 09:31 +0100
        Re: C++ file locking Ruben Safir <mrbrklyn@panix.com> - 2011-06-27 12:29 +0000
      Re: C++ file locking Rainer Weikusat <rweikusat@mssgmbh.com> - 2011-06-10 16:53 +0100
      Re: C++ file locking Lew Pitcher <lpitcher@teksavvy.com> - 2011-06-10 13:45 -0400
  Re: C++ file locking Ruben Safir <mrbrklyn@panix.com> - 2011-06-26 21:55 +0000

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