Re: [Boost-bugs] [Boost C++ Libraries] #897: exists() throws exeption on existing but locked file on wind

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #897: exists() throws exeption on existing but locked file on wind
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2007-10-31 22:14:10

#897: exists() throws exeption on existing but locked file on wind
---------------------------+------------------------------------------------
  Reporter:  hkaiser       |       Owner:  bemandawes 
      Type:  Bugs          |      Status:  closed     
 Milestone:  Boost 1.35.0  |   Component:  filesystem 
   Version:  None          |    Severity:  Showstopper
Resolution:  fixed         |    Keywords:             
---------------------------+------------------------------------------------
Changes (by bemandawes):

  * status:  new => closed
  * resolution:  None => fixed
  * milestone:  => Boost 1.35.0

Old description:

> {{{
> boost::filesystem::exists(somepath) throws an exception from when
> 'somepath' exists but is locked by some other process (at least on
> Windows).
>
> A simple way to reproduce the effect is:
>
> #include <iostream>
> #include <boost/filesystem.hpp>
>
> int main()
> {
>     boost::filesystem::path p("C:\\pagefile.sys");
>     try {
>         boost::filesystem::exists(p);
>     }
>     catch (...) {
>         std::cerr << "Ooops..." << std::endl;
>     }
>     return 0;
> }
>
> Throwing an exception doesn't seem to be the right thing here, since the
> file actually exists, so I'ld expect to get a 'true' back from exists().
>
> }}}

New description:

 {{{
 boost::filesystem::exists(somepath) throws an exception from when
 'somepath' exists but is locked by some other process (at least on
 Windows).

 A simple way to reproduce the effect is:

 #include <iostream>
 #include <boost/filesystem.hpp>

 int main()
 {
     boost::filesystem::path p("C:\\pagefile.sys");
     try {
         boost::filesystem::exists(p);
     }
     catch (...) {
         std::cerr << "Ooops..." << std::endl;
     }
     return 0;
 }

 Throwing an exception doesn't seem to be the right thing here, since the
 file actually exists, so I'ld expect to get a 'true' back from exists().

 }}}

-- 
Ticket URL: <http://svn.boost.org/trac/boost/ticket/897#comment:2>
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