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/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
/*
* 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) 2004-2008 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) 2013 Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2013 Los Alamos National Security, LLC. All rights
* reserved.
* Copyright (c) 2015 Research Organization for Information Science
* and Technology (RIST). All rights reserved.
* Copyright (c) 2016 University of Houston. All rights reserved.
* Copyright (c) 2017 IBM Corporation. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include "ompi/mpi/c/bindings.h"
#include "ompi/runtime/params.h"
#include "ompi/communicator/communicator.h"
#include "ompi/errhandler/errhandler.h"
#include "ompi/info/info.h"
#include "ompi/file/file.h"
#include "ompi/mca/io/io.h"
#include "ompi/mca/io/base/base.h"
#include "ompi/memchecker.h"
extern opal_mutex_t ompi_mpi_file_bootstrap_mutex;
#if OMPI_BUILD_MPI_PROFILING
#if OPAL_HAVE_WEAK_SYMBOLS
#pragma weak MPI_File_open = PMPI_File_open
#endif
#define MPI_File_open PMPI_File_open
#endif
static const char FUNC_NAME[] = "MPI_File_open";
int MPI_File_open(MPI_Comm comm, const char *filename, int amode,
MPI_Info info, MPI_File *fh)
{
int rc;
MEMCHECKER(
memchecker_comm(comm);
);
if (MPI_PARAM_CHECK) {
OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
if (NULL == info || ompi_info_is_freed(info)) {
return OMPI_ERRHANDLER_NOHANDLE_INVOKE(MPI_ERR_INFO,
FUNC_NAME);
} else if (ompi_comm_invalid(comm)) {
return OMPI_ERRHANDLER_NOHANDLE_INVOKE(MPI_ERR_COMM,
FUNC_NAME);
}
if (OMPI_COMM_IS_INTER(comm)) {
return OMPI_ERRHANDLER_INVOKE (comm, MPI_ERR_COMM,
FUNC_NAME);
}
}
/* Note that MPI-2:9.7 (p265 in the ps; p261 in the pdf) says that
errors in MPI_FILE_OPEN (before the file handle is created)
should invoke the default error handler on MPI_FILE_NULL.
Hence, if we get a file handle out of ompi_file_open(), invoke
the error handler on that. If not, invoke the error handler on
MPI_FILE_NULL. */
/* The io framework is only initialized lazily. If it hasn't
already been initialized, do so now (note that MPI_FILE_OPEN
and MPI_FILE_DELETE are the only two places that it will be
initialized). */
/* For multi-threaded scenarios, initializing the file i/o
framework and mca infrastructure needs to be protected
by a mutex, similarly to the other frameworks in
ompi/runtime/ompi_mpi_init.c
*/
opal_mutex_lock(&ompi_mpi_file_bootstrap_mutex);
rc = mca_base_framework_open(&ompi_io_base_framework, 0);
if (OMPI_SUCCESS != rc) {
opal_mutex_unlock(&ompi_mpi_file_bootstrap_mutex);
return OMPI_ERRHANDLER_INVOKE(MPI_FILE_NULL, rc, FUNC_NAME);
}
opal_mutex_unlock(&ompi_mpi_file_bootstrap_mutex);
/* Create an empty MPI_File handle */
*fh = MPI_FILE_NULL;
rc = ompi_file_open(comm, filename, amode, &(info->super), fh);
/* Creating the file handle also selects a component to use,
creates a module, and calls file_open() on the module. So
we're good to go. */
OMPI_ERRHANDLER_RETURN(rc, *fh, rc, FUNC_NAME);
}
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