[Boost-bugs] [Boost C++ Libraries] #11166: boost::filesystem::remove is racy

Subject: [Boost-bugs] [Boost C++ Libraries] #11166: boost::filesystem::remove is racy
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2015-04-03 19:52:14

#11166: boost::filesystem::remove is racy
-----------------------------------+------------------------
 Reporter:  Jeff Epler <jepler@…>  |      Owner:  bemandawes
     Type:  Bugs                   |     Status:  new
Milestone:  To Be Determined       |  Component:  filesystem
  Version:  Boost 1.57.0           |   Severity:  Problem
 Keywords:                         |
-----------------------------------+------------------------
 As the attached program demonstrates (typically in way under 1s here), if
 two threads or processes attempt to remove the same file, one of the
 removers can get an exception because 'no such file or directory', even
 though not existing at the time of the call is *not* an error condition
 for remove.

 I have only verified this bug to exist in 1.49 and 1.53, but I glanced at
 github's boostorg/filesystem/blob/master/src/operations.cpp and it looks
 like the same problem is likely to exist--namely, that remove_file can
 fail because somebody else removed the file we were about to remove, after
 we verified that the file existed via query_file_type.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/11166>
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