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From "Jacob S. Barrett (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (GEODE-2493) Replaces the locking and CAS operations provided in HostAsm with C++11 standards
Date Thu, 16 Feb 2017 05:06:42 GMT

    [ https://issues.apache.org/jira/browse/GEODE-2493?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15869186#comment-15869186
] 

Jacob S. Barrett commented on GEODE-2493:
-----------------------------------------

Replace {{HostAsm::getCpuCount}} with {{[std::thread::hardware_concurrency|http://en.cppreference.com/w/cpp/thread/thread/hardware_concurrency]}}.

> Replaces the locking and CAS operations provided in HostAsm with C++11 standards
> --------------------------------------------------------------------------------
>
>                 Key: GEODE-2493
>                 URL: https://issues.apache.org/jira/browse/GEODE-2493
>             Project: Geode
>          Issue Type: Task
>          Components: native client
>            Reporter: Jacob S. Barrett
>
> Several platform specific locking and CAS operations are implemented in HostAsm and related
files. These are not portable and require porting efforts. They are also not well tested.
Converting the C++11 standards allows the compiler to choose the code or instructions that
optimize the behavior required. Most if not all of the functions these files provide can be
replaced with C++11 standard functions.
> Some Examples:
> On Solaris SPAC we have inline assembly.
> On Solaris x86 we use Solaris specific runtime functions.
> On Windows we use really old Win32 functions that have some non-standard behavior.



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