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Current File : //etc/alternatives/mpi/openmpi/ompi/info/info.h
/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
/*
* Copyright (c) 2004-2010 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2007 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) 2007-2017 Cisco Systems, Inc. All rights reserved
* Copyright (c) 2009 Sun Microsystems, Inc. All rights reserved.
* Copyright (c) 2012-2015 Los Alamos National Security, LLC. All rights
* reserved.
* Copyright (c) 2016-2017 IBM Corporation. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#ifndef OMPI_INFO_H
#define OMPI_INFO_H
#include "ompi_config.h"
#include <string.h>
#include "mpi.h"
#include "opal/util/info.h"
#include "opal/class/opal_list.h"
#include "opal/class/opal_pointer_array.h"
#include "opal/threads/mutex.h"
#include "opal/mca/base/mca_base_var_enum.h"
struct ompi_info_t {
struct opal_info_t super;
/**< generic list pointer which is the container for (key,value)
pairs */
int i_f_to_c_index;
/**< fortran handle for info. This is needed for translation from
fortran to C and vice versa */
/**< Mutex for thread safety */
bool i_freed;
/**< Whether this info has been freed or not */
};
typedef struct ompi_info_t ompi_info_t;
/**
* Padded struct to maintain back compatibiltiy.
* See ompi/communicator/communicator.h comments with struct ompi_communicator_t
* for full explanation why we chose the following padding construct for predefines.
*/
#define PREDEFINED_INFO_PAD 256
struct ompi_predefined_info_t {
struct ompi_info_t info;
char padding[PREDEFINED_INFO_PAD - sizeof(ompi_info_t)];
};
typedef struct ompi_predefined_info_t ompi_predefined_info_t;
BEGIN_C_DECLS
/**
* Global instance for MPI_INFO_NULL
*/
OMPI_DECLSPEC extern ompi_predefined_info_t ompi_mpi_info_null;
/**
* Symbol for Fortran 03 bindings to bind to
*/
OMPI_DECLSPEC extern ompi_predefined_info_t *ompi_mpi_info_null_addr;
/**
* \internal
* Some declarations needed to use OBJ_NEW and OBJ_DESTRUCT macros
*/
OMPI_DECLSPEC OBJ_CLASS_DECLARATION(ompi_info_t);
/**
* This function is invoked during ompi_mpi_init() and sets up
* MPI_Info handling.
*/
int ompi_mpiinfo_init(void);
/**
* This function is used to free a ompi level info
*/
int ompi_info_free (ompi_info_t **info);
/**
* This functions is called during ompi_mpi_finalize() and shuts
* down MPI_Info handling.
*/
int ompi_mpiinfo_finalize(void);
/**
* ompi_info_foo() wrapper around various opal_info_foo() calls
*/
OMPI_DECLSPEC int ompi_info_dup (ompi_info_t *info, ompi_info_t **newinfo);
/**
* ompi_info_foo() wrapper around various opal_info_foo() calls
*/
OMPI_DECLSPEC int ompi_info_dup_mpistandard (ompi_info_t *info, ompi_info_t **newinfo);
/**
* ompi_info_foo() wrapper around various opal_info_foo() calls
*/
OMPI_DECLSPEC int ompi_info_set (ompi_info_t *info, const char *key, const char *value);
/**
* ompi_info_foo() wrapper around various opal_info_foo() calls
*/
OMPI_DECLSPEC int ompi_info_set_value_enum (ompi_info_t *info, const char *key, int value,
mca_base_var_enum_t *var_enum);
/**
* ompi_info_foo() wrapper around various opal_info_foo() calls
*/
OMPI_DECLSPEC int ompi_info_get_bool (ompi_info_t *info, char *key, bool *value, int *flag);
/**
* ompi_info_foo() wrapper around various opal_info_foo() calls
*/
OMPI_DECLSPEC int ompi_info_get_value_enum (ompi_info_t *info, const char *key,
int *value, int default_value,
mca_base_var_enum_t *var_enum, int *flag);
/**
* ompi_info_foo() wrapper around various opal_info_foo() calls
*/
OMPI_DECLSPEC int ompi_info_get (ompi_info_t *info, const char *key, int valuelen,
char *value, int *flag);
/**
* ompi_info_foo() wrapper around various opal_info_foo() calls
*/
OMPI_DECLSPEC int ompi_info_delete (ompi_info_t *info, const char *key);
/**
* ompi_info_foo() wrapper around various opal_info_foo() calls
*/
OMPI_DECLSPEC int ompi_info_get_valuelen (ompi_info_t *info, const char *key, int *valuelen,
int *flag);
/**
* ompi_info_foo() wrapper around various opal_info_foo() calls
*/
OMPI_DECLSPEC int ompi_info_get_nthkey (ompi_info_t *info, int n, char *key);
/**
* ompi_info_foo() wrapper around various opal_info_foo() calls
*/
OMPI_DECLSPEC int ompi_info_value_to_bool(char *value, bool *interp);
/**
* ompi_info_foo() wrapper around various opal_info_foo() calls
*/
OMPI_DECLSPEC int ompi_info_get_nkeys(ompi_info_t *info, int *nkeys);
END_C_DECLS
/**
* Return whether this info has been freed already or not.
*
* @param info Pointer to opal_info_t object.
*
* @retval true If the info has already been freed
* @retval false If the info has not yet been freed
*
* If the info has been freed, return true. This will likely only
* happen in a reliable manner if opal_debug_handle_never_free is
* true, in which case an extra OBJ_RETAIN is set on the object during
* OBJ_NEW, meaning that the user will never be able to actually free
* the underlying object. It's a good way to find out if a process is
* unintentionally using a freed handle.
*/
static inline bool ompi_info_is_freed(ompi_info_t *info)
{
return info->i_freed;
}
#endif /* OMPI_INFO_H */
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