[Bug 26500] New: Critical section busy wait

http://bugs.winehq.org/show_bug.cgi?id=26500

Summary: Critical section busy wait
           Product: Wine
           Version: 1.3.16
          Platform: All
        OS/Version: All
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: ntdll
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

The critical section machinery (EnterCriticalSection, LeaveCriticalSection,
TryEnterCriticalSection) is realized suboptimal: waiting thread consumes CPU
cycles polling LockCount instead of using system lock like pthread_mutex_lock
do (please look at http://www.jbox.dk/sanos/source/lib/pthread/mutex.c.html ) .

Suggested solution: throw out custom realization and use pthread_mutex_t,
pthread_mutex_lock, pthread_mutex_unlock and pthread_mutex_lock instead.