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30d4939382
When isc__thread_initialize() is called from a library constructor, it could be called before we fork the main process. This happens with named, and then we have the call_rcu_thread attached to the pre-fork process and not the post-fork process, which means that the initial process will never shutdown, because there's noone to tell it so. Move the isc__thread_initialize() and isc__thread_shutdown() to the isc_loop unit where we call it before creating the extra thread and after joining all the extra threads respectively.
80 lines
1.7 KiB
C
80 lines
1.7 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/crypto.h>
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#include <isc/hash.h>
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#include <isc/iterated_hash.h>
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#include <isc/md.h>
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#include <isc/mem.h>
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#include <isc/os.h>
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#include <isc/refcount.h>
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#include <isc/tls.h>
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#include <isc/urcu.h>
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#include <isc/util.h>
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#include <isc/uv.h>
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#include <isc/xml.h>
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#include "mem_p.h"
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#include "mutex_p.h"
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#include "os_p.h"
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#include "thread_p.h"
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/***
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*** Functions
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***/
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static isc_refcount_t isc__lib_references = 0;
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void
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isc__lib_initialize(void);
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void
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isc__lib_shutdown(void);
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void
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isc__lib_initialize(void) {
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if (isc_refcount_increment0(&isc__lib_references) > 0) {
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return;
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}
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rcu_register_thread();
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isc__os_initialize();
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isc__mutex_initialize();
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isc__mem_initialize();
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isc__log_initialize();
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isc__crypto_initialize();
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isc__uv_initialize();
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isc__xml_initialize();
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isc__hash_initialize();
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isc__iterated_hash_initialize();
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(void)isc_os_ncpus();
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}
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void
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isc__lib_shutdown(void) {
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if (isc_refcount_decrement(&isc__lib_references) > 1) {
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return;
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}
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isc__iterated_hash_shutdown();
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isc__xml_shutdown();
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isc__uv_shutdown();
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isc__crypto_shutdown();
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isc__log_shutdown();
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isc__mem_shutdown();
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isc__mutex_shutdown();
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isc__os_shutdown();
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/* should be after isc__mem_shutdown() which calls rcu_barrier() */
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rcu_unregister_thread();
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}
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