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https://issues.apache.org/jira/browse/GEODE-2494?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15886968#comment-15886968
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ASF GitHub Bot commented on GEODE-2494:
---------------------------------------

Github user pivotal-jbarrett commented on a diff in the pull request:

    https://github.com/apache/geode-native/pull/36#discussion_r103353568
  
    --- Diff: src/cppcache/src/LRUList.hpp ---
    @@ -20,32 +20,32 @@
      * limitations under the License.
      */
     
    +#include <atomic>
    +
     #include <geode/geode_globals.hpp>
     #include <geode/SharedPtr.hpp>
    -#include "SpinLock.hpp"
    +
    +#include "util/concurrent/spinlock_mutex.hpp"
     
     namespace apache {
     namespace geode {
     namespace client {
    +
     // Bit mask for recently used
    -#define RECENTLY_USED_BITS 1ul
    +#define RECENTLY_USED_BITS 1u
     // Bit mask for evicted
    -#define EVICTED_BITS 2ul
    +#define EVICTED_BITS 2u
    --- End diff --
    
    They are macros, but they could be converted to `const` in anonymous 
namespace or even in this namespace or `constexpr` on the class itself. I will 
look at what that looks like and maybe update it.


> Replace SpinLock class with C++11 style BasicLockable class, spinlock_mutex.
> ----------------------------------------------------------------------------
>
>                 Key: GEODE-2494
>                 URL: https://issues.apache.org/jira/browse/GEODE-2494
>             Project: Geode
>          Issue Type: Sub-task
>          Components: native client
>            Reporter: Jacob S. Barrett
>            Assignee: Jacob S. Barrett
>
> Replace {{SpinLock}} class with C++11 style 
> {{[BasicLockable|http://en.cppreference.com/w/cpp/concept/BasicLockable]}} 
> class, {{spinlock_mutex}}. You can find several public domain examples of how 
> to implement a {{spinlock_mutex}} that can be used with 
> {{[std::lock_guard|http://en.cppreference.com/w/cpp/thread/lock_guard]}}.



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