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info
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/usr/lib/x86_64-linux-gnu/openmpi/include/openmpi/ompi/info
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/usr/lib/x86_64-linux-gnu/openmpi/include/openmpi/ompi/info/info.h
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/* -*- 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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