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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 */