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openmpi/test/asm/atomic_barrier.c
Brian Barrett 0964152893 clean up the OMPI_BUILDING #define. Rather than being defined to 1 if
we are part of the source tree and not defined otherwise, we are going
with an always defined if ompi_config.h is included policy.  If
ompi_config.h is included before mpi.h or before OMPI_BUILDING is set,
it will set OMPI_BUILDING to 1 and enable all the internal code that
is in ompi_config_bottom.h.  Otherwise, it will only include the
system configuration data (enough for defining the C and C++ interfaces
to MPI, but not perturbing the user environment).

This should fix the problems with bool and the like that the Eclipse
folks were seeing.  It also cleans up some build system hacks that
we had along the way.

Also, don't use int64_t as the default size of MPI_Offset, because it
requires us including stdint.h in mpi.h, which is something we really
shouldn't be doing.

And finally, fix a ROMIO Makefile that didn't set -DOMPI_BUILDING=1,
as ROMIO includes mpi.h, but not ompi_config.h

This commit was SVN r5430.
2005-04-19 03:51:20 +00:00

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C

/*
* Copyright (c) 2004-2005 The Trustees of Indiana University.
* All rights reserved.
* Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
* All rights reserved.
* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
* University of Stuttgart. All rights reserved.
* Copyright (c) 2004-2005 The Regents of the University of California.
* All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#define OMPI_BUILDING 0
#include "ompi_config.h"
#include "include/sys/atomic.h"
int
main(int argc, char *argv[])
{
#if OMPI_HAVE_ATOMIC_MEM_BARRIER
/* there really isn't a great way to test that the barriers
actually barrier, but at least make sure they don't kill the
machine.*/
ompi_atomic_mb();
ompi_atomic_rmb();
ompi_atomic_wmb();
return 0;
#else
return 77;
#endif
}