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Viewing changes to mysys/my_pthread.h

Merge Stewart's dead code removal

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mysys/my_pthread.h
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        /* READ-WRITE thread locking */
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#ifndef HAVE_THR_SETCONCURRENCY
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#define thr_setconcurrency(A) pthread_dummy(0)
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#endif
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#if !defined(HAVE_PTHREAD_ATTR_SETSTACKSIZE) && ! defined(pthread_attr_setstacksize)
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#define pthread_attr_setstacksize(A,B) pthread_dummy(0)
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#endif
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#else
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#define MY_MUTEX_INIT_FAST   NULL
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#endif
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#ifdef PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP
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extern pthread_mutexattr_t my_errorcheck_mutexattr;
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#define MY_MUTEX_INIT_ERRCHK &my_errorcheck_mutexattr
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#else
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#define MY_MUTEX_INIT_ERRCHK   NULL
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#endif
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#ifndef ESRCH
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/* Define it to something */
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/* All thread specific variables are in the following struct */
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#define THREAD_NAME_SIZE 10
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/*
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  Drizzle can survive with 32K, but some glibc libraries require > 128K stack
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  to resolve hostnames. Also recursive stored procedures needs stack.