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f24d7a89f5
git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@135681 65c4cc65-6c06-0410-ace0-fbb531ad65f3
77 lines
2.3 KiB
C
77 lines
2.3 KiB
C
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 2007 - 2008, Digium, Inc.
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*
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* See http://www.asterisk.org for more information about
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* the Asterisk project. Please do not directly contact
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* any of the maintainers of this project for assistance;
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* the project provides a web site, mailing lists and IRC
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* channels for your use.
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License Version 2. See the LICENSE file
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* at the top of the source tree.
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*/
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/*! \file
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* \brief Asterisk datastore objects
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*/
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#ifndef _ASTERISK_DATASTORE_H
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#define _ASTERISK_DATASTORE_H
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#if defined(__cplusplus) || defined(c_plusplus)
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extern "C" {
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#endif
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#include "asterisk/linkedlists.h"
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/*! \brief Structure for a data store type */
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struct ast_datastore_info {
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const char *type; /*!< Type of data store */
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void *(*duplicate)(void *data); /*!< Duplicate item data (used for inheritance) */
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void (*destroy)(void *data); /*!< Destroy function */
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/*!
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* \brief Fix up channel references
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*
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* \arg data The datastore data
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* \arg old_chan The old channel owning the datastore
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* \arg new_chan The new channel owning the datastore
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*
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* This is exactly like the fixup callback of the channel technology interface.
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* It allows a datastore to fix any pointers it saved to the owning channel
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* in case that the owning channel has changed. Generally, this would happen
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* when the datastore is set to be inherited, and a masquerade occurs.
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*
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* \return nothing.
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*/
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void (*chan_fixup)(void *data, struct ast_channel *old_chan, struct ast_channel *new_chan);
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};
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/*! \brief Structure for a data store object */
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struct ast_datastore {
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const char *uid; /*!< Unique data store identifier */
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void *data; /*!< Contained data */
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const struct ast_datastore_info *info; /*!< Data store type information */
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unsigned int inheritance; /*!< Number of levels this item will continue to be inherited */
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AST_LIST_ENTRY(ast_datastore) entry; /*!< Used for easy linking */
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};
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/*!
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* \brief Create a data store object
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*/
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struct ast_datastore *ast_datastore_alloc(const struct ast_datastore_info *info, const char *uid);
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/*!
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* \brief Free a data store object
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*/
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int ast_datastore_free(struct ast_datastore *datastore);
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#if defined(__cplusplus) || defined(c_plusplus)
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}
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#endif
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#endif /* _ASTERISK_DATASTORE_H */
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