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Ticket #4889 (closed Bugs: fixed)

Opened 3 years ago

Last modified 2 years ago

path locale-related functions are not thread-safe

Reported by: andysem Owned by: bemandawes
Milestone: To Be Determined Component: filesystem
Version: Boost 1.45.0 Severity: Problem
Keywords: Cc:

Description

Boost.Filesystem v.3 keeps the locale used by path objects in a function-local static object (see path_locale function in path.cpp). If multiple threads use path methods that involve locale (such as string(), wstring(), converting constructors or assignment from strings), the code may use a not yet constructed locale object or leak the locale. The locale object must be protected with call_once or similar technique.

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comment:1 Changed 2 years ago by bemandawes

  • Status changed from new to closed
  • Resolution set to fixed

(In [76303]) Fix #4889, #6320, Locale codecvt_facet not thread safe on Windows. Move Windows, Mac OS X, locale and codecvt facet back to namespace scope. POSIX except OS X uses local static initialization (IE lazy) to ensure exceptions are catchable if environmental variables are misconfigured and to avoid use of locale("") if not actually used.

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