[jira] [Commented] (XERCESC-2099) Support Standard C++ mutex

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[jira] [Commented] (XERCESC-2099) Support Standard C++ mutex

JIRA xerces-c-dev@xml.apache.org

    [ https://issues.apache.org/jira/browse/XERCESC-2099?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16045071#comment-16045071 ]

Roger Leigh commented on XERCESC-2099:
--------------------------------------

Part of the motivation for this work is investigation into occasional random {{ThreadTest}} failures on FreeBSD which I've been noticing for some time, but haven't yet pinned down a cause.

> Support Standard C++ mutex
> --------------------------
>
>                 Key: XERCESC-2099
>                 URL: https://issues.apache.org/jira/browse/XERCESC-2099
>             Project: Xerces-C++
>          Issue Type: Bug
>          Components: Utilities
>    Affects Versions: 3.2.0
>         Environment: Any supported platform
>            Reporter: Roger Leigh
>              Labels: c++11, mutex
>         Attachments: 0001-StdMutexMgr-Add-C-11-mutex-manager.patch
>
>   Original Estimate: 0h
>  Remaining Estimate: 0h
>
> Xerces-C currently supports POSIX and Win32 threading models with dedicated mutex manager classes.  C++ standards since C\+\+11 support native mutexes which will work on any supported platform.
> The attached patch adds a {{StdMutexMgr}} class and the necessary Autoconf and CMake logic to check if C\+\+ mutexes are available.  If not, it will fall back to the existing managers.
> On all but the most current compilers, it will continue to use POSIX/Win32 managers.  On the most recent compilers, which default to C\+\+14, the standard mutexes will be used.  On older compilers, the user must explicitly enable by setting {{CXXFLAGS=-std=c++11}} or later.
> See
> - [travis|https://travis-ci.org/rleigh-codelibre/xerces-c/builds/241340724]
> - [appveyor|https://ci.appveyor.com/project/rleigh-codelibre/xerces-c/build/1.0.88]
> for build and test results.  You'll see that GCC on Linux is using POSIX mutex, while clang on MacOS X is using standard mutex.  On Windows, Cygwin uses POSIX mutex while MinGW and MSVC uses standard mutex.



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