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/*
* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* See the COPYRIGHT file distributed with this work for additional
* information regarding copyright ownership.
*/
#ifndef IRS_CONTEXT_H
#define IRS_CONTEXT_H 1
/*! \file
*
* \brief
* The IRS context module provides an abstract interface to the DNS library
* with an application. An IRS context object initializes and holds various
* resources used in the DNS library.
*/
#include <dns/types.h>
#include <irs/types.h>
ISC_LANG_BEGINDECLS
isc_result_t
irs_context_create(irs_context_t **contextp);
/*%<
* Create an IRS context. It internally initializes the ISC and DNS libraries
* (if not yet), creates a DNS client object and initializes the client using
* the configuration files parsed via the 'resconf' and 'dnsconf' IRS modules.
* Some of the internally initialized objects can be used by the application
* via irs_context_getxxx() functions (see below).
*
* Requires:
*
*\li contextp != NULL && *contextp == NULL.
*/
isc_result_t
irs_context_get(irs_context_t **contextp);
/*%<
* Return an IRS context for the calling thread. If no IRS context is
* associated to the thread, this function creates a new one by calling
* irs_context_create(), and associates it with the thread as a thread specific
* data value. This function is provided for standard libraries that are
* expected to be thread-safe but do not accept an appropriate IRS context
* as a library parameter, e.g., getaddrinfo().
*
* Requires:
*
*\li contextp != NULL && *contextp == NULL.
*/
void
irs_context_destroy(irs_context_t **contextp);
/*%<
* Destroy an IRS context.
*
* Requires:
*
*\li '*contextp' is a valid IRS context.
*
* Ensures:
*\li '*contextp' == NULL.
*/
isc_mem_t *
irs_context_getmctx(irs_context_t *context);
/*%<
* Return the memory context held in the context.
*
* Requires:
*
*\li 'context' is a valid IRS context.
*/
isc_appctx_t *
irs_context_getappctx(irs_context_t *context);
/*%<
* Return the application context held in the context.
*
* Requires:
*
*\li 'context' is a valid IRS context.
*/
isc_taskmgr_t *
irs_context_gettaskmgr(irs_context_t *context);
/*%<
* Return the task manager held in the context.
*
* Requires:
*
*\li 'context' is a valid IRS context.
*/
isc_timermgr_t *
irs_context_gettimermgr(irs_context_t *context);
/*%<
* Return the timer manager held in the context.
*
* Requires:
*
*\li 'context' is a valid IRS context.
*/
isc_task_t *
irs_context_gettask(irs_context_t *context);
/*%<
* Return the task object held in the context.
*
* Requires:
*
*\li 'context' is a valid IRS context.
*/
dns_client_t *
irs_context_getdnsclient(irs_context_t *context);
/*%<
* Return the DNS client object held in the context.
*
* Requires:
*
*\li 'context' is a valid IRS context.
*/
irs_resconf_t *
irs_context_getresconf(irs_context_t *context);
/*%<
* Return the resolver configuration object held in the context.
*
* Requires:
*
*\li 'context' is a valid IRS context.
*/
irs_dnsconf_t *
irs_context_getdnsconf(irs_context_t *context);
/*%<
* Return the advanced DNS configuration object held in the context.
*
* Requires:
*
*\li 'context' is a valid IRS context.
*/
ISC_LANG_ENDDECLS
#endif /* IRS_CONTEXT_H */