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547c280002
Kasp used a lock per zone origin in order to prevent concurrent access to keyfiles. This lead to substantial memory consumption in the case of authoritative servers with many small zones, as lots of locks need to be allocated. Since the number of keyfile locks taken cannot exceed the number of helper threads, it makes more sense to use a lock pool of fixed size keyed by the hash of the origin name, leading to memory savings.
73 lines
1.4 KiB
C
73 lines
1.4 KiB
C
/*
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* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
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*
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* SPDX-License-Identifier: MPL-2.0
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, you can obtain one at https://mozilla.org/MPL/2.0/.
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*
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* See the COPYRIGHT file distributed with this work for additional
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* information regarding copyright ownership.
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*/
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/*! \file */
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#include <isc/once.h>
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#include <isc/refcount.h>
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#include "acl_p.h"
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#include "db_p.h"
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#include "dlz_p.h"
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#include "dst_internal.h"
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#include "dyndb_p.h"
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#include "qp_p.h"
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#include "qpzone_p.h"
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void
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dns__zone_keymgmt_initialize(void);
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void
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dns__zone_keymgmt_shutdown(void);
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/***
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*** Functions
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***/
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static isc_refcount_t dns__lib_references = 0;
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void
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dns__lib_initialize(void);
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void
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dns__lib_shutdown(void);
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void
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dns__lib_initialize(void) {
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if (isc_refcount_increment0(&dns__lib_references) > 0) {
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return;
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}
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dst__lib_initialize();
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dns__acl_initialize();
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dns__dlz_initialize();
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dns__db_initialize();
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dns__dyndb_initialize();
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dns__qp_initialize();
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dns__qpzone_initialize();
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dns__zone_keymgmt_initialize();
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}
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void
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dns__lib_shutdown(void) {
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if (isc_refcount_decrement(&dns__lib_references) > 1) {
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return;
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}
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dns__zone_keymgmt_shutdown();
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dns__qpzone_shutdown();
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dns__qp_shutdown();
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dns__dyndb_shutdown();
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dns__db_shutdown();
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dns__dlz_shutdown();
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dns__acl_shutdown();
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dst__lib_shutdown();
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}
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