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/*
* Copyright (c) 2004-2007 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2020 The University of Tennessee and The University
* of Tennessee Research Foundation. 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 (c) 2006-2008 Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2015 Research Organization for Information Science
* and Technology (RIST). All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include <stdio.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <string.h>
#include "ompi/mpi/c/bindings.h"
#include "ompi/runtime/params.h"
#include "ompi/communicator/communicator.h"
#include "ompi/errhandler/errhandler.h"
#if OMPI_BUILD_MPI_PROFILING
#if OPAL_HAVE_WEAK_SYMBOLS
#pragma weak MPI_Get_processor_name = PMPI_Get_processor_name
#endif
#define MPI_Get_processor_name PMPI_Get_processor_name
#endif
static const char FUNC_NAME[] = "MPI_Get_processor_name";
int MPI_Get_processor_name(char *name, int *resultlen)
{
if ( MPI_PARAM_CHECK) {
OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
if ( NULL == name ) {
return OMPI_ERRHANDLER_NOHANDLE_INVOKE(MPI_ERR_ARG,
FUNC_NAME);
}
if ( NULL == resultlen ) {
return OMPI_ERRHANDLER_NOHANDLE_INVOKE(MPI_ERR_ARG,
FUNC_NAME);
}
}
/* A simple implementation of this function using gethostname.
Note that MPI-2.1 requires:
- terminating the string with a \0
- name[*resultlen] == '\0'
- and therefore (*resultlen) cannot be > (MPI_MAX_PROCESSOR_NAME-1)
Guard against gethostname() returning a *really long* hostname
and not null-terminating the string. The Fortran API version
will pad to the right if necessary. */
gethostname(name, (MPI_MAX_PROCESSOR_NAME - 1));
name[MPI_MAX_PROCESSOR_NAME - 1] = '\0';
*resultlen = (int) strlen(name);
return MPI_SUCCESS;
}
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