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46 lines
1.3 KiB
C
46 lines
1.3 KiB
C
/* Copyright (C) 2006 MySQL AB
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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#include <my_global.h>
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#include <my_pthread.h>
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#ifndef HAVE_INLINE
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/*
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the following will cause all inline functions to be instantiated
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*/
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#define HAVE_INLINE
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#define static extern
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#endif
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#include <my_atomic.h>
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/*
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checks that the current build of atomic ops
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can run on this machine
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RETURN
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ATOMIC_xxx values, see my_atomic.h
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*/
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int my_atomic_initialize()
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{
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DBUG_ASSERT(sizeof(intptr) == sizeof(void *));
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/* currently the only thing worth checking is SMP/UP issue */
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#ifdef MY_ATOMIC_MODE_DUMMY
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return my_getncpus() == 1 ? MY_ATOMIC_OK : MY_ATOMIC_NOT_1CPU;
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#else
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return MY_ATOMIC_OK;
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#endif
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}
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