mirror of https://gitee.com/openkylin/openmpi.git
85 lines
2.8 KiB
C
85 lines
2.8 KiB
C
/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
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/*
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* Copyright (c) 2004-2010 The Trustees of Indiana University and Indiana
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* University Research and Technology
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* Corporation. All rights reserved.
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* Copyright (c) 2004-2007 The University of Tennessee and The University
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* of Tennessee Research Foundation. All rights
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* reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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* Copyright (c) 2007-2012 Cisco Systems, Inc. All rights reserved.
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* Copyright (c) 2009 Sun Microsystems, Inc. All rights reserved.
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* Copyright (c) 2012-2015 Los Alamos National Security, LLC. All rights
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* reserved.
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* Copyright (c) 2017 IBM Corporation. All rights reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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#ifndef OMPI_INFOSUBSCRIBE_H
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#define OMPI_INFOSUBSCRIBE_H
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#include <string.h>
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#include "opal/class/opal_list.h"
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#include "opal/class/opal_pointer_array.h"
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#include "opal/class/opal_hash_table.h"
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#include "opal/threads/mutex.h"
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#include "opal/util/info.h"
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#include "opal/mca/base/mca_base_var_enum.h"
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#define INFO_SUBSCRIBER_SIZE 5
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struct opal_infosubscriber_t {
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opal_object_t s_base;
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opal_hash_table_t s_subscriber_table;
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opal_info_t *s_info;
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};
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typedef struct opal_infosubscriber_t opal_infosubscriber_t;
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OPAL_DECLSPEC OBJ_CLASS_DECLARATION(opal_infosubscriber_t);
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typedef char*(opal_key_interest_callback_t)(opal_infosubscriber_t*, char*, char*);
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/**
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* opal_infosubscribe_change_info - Make changes to a Comm/Win/File Info
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*
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* @param type Comm/Win/File
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* @param object corresponding Com/Win/File object
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* @param old_info previous info setting
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* @param new_info new info setting
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*
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* @retval OPAL status
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*
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* Notifies subscribers of info's that have gone away and new info settings
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*/
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int opal_infosubscribe_change_info(opal_infosubscriber_t*, opal_info_t *);
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/**
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* opal_infosubscribe_subscribe - Request to be updated about info changes to a Comm/Win/File Info
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*
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* @param type Comm/Win/File of obj
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* @param obj either a comm, win or file
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* @param key info key being set
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* @param initial_value default value (or NULL if none)
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* @param callback callback to be called when key changes
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*
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* @retval OPAL status
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*
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* Notifies subscribers of info's that have gone away and new info settings
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* Does not try to optimize settings that are the same between old and new
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* info's.
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*/
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int opal_infosubscribe_subscribe(opal_infosubscriber_t*, char *, char *, opal_key_interest_callback_t);
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#endif /* OMPI_INFO_H */
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