mariadb/mysys/my_atomic.c
Davi Arnaut cd41cd953d Bug#22320: my_atomic-t unit test fails
The atomic operations implementation on 5.1 has a few problems,
which might cause tests to abort randomly. Since no code in 5.1
uses atomic operations, simply remove the code.
2010-07-05 09:00:39 -03:00

45 lines
1.3 KiB
C

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