mirror of
https://gitlab.isc.org/isc-projects/bind9
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494d0da522
Instead of calling isc_tls_initialize()/isc_tls_destroy() explicitly use gcc/clang attributes on POSIX and DLLMain on Windows to initialize and shutdown OpenSSL library. This resolves the issue when isc_nm_create() / isc_nm_destroy() was called multiple times and it would call OpenSSL library destructors from isc_nm_destroy(). At the same time, since we now have introduced the ctor/dtor for libisc, this commit moves the isc_mem API initialization (the list of the contexts) and changes the isc_mem_checkdestroyed() to schedule the checking of memory context on library unload instead of executing the code immediately.
65 lines
1.4 KiB
C
65 lines
1.4 KiB
C
/*
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* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
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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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#include <stdio.h>
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#include <windows.h>
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#include <isc/mem.h>
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#include <isc/tls.h>
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#include <isc/util.h>
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#include "mem_p.h"
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#include "tls_p.h"
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/*
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* Called when we enter the DLL
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*/
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__declspec(dllexport) BOOL WINAPI
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DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved) {
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switch (fdwReason) {
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/*
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* The DLL is loading due to process initialization or a call to
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* LoadLibrary.
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*/
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case DLL_PROCESS_ATTACH:
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/*
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* Disable DllMain() invocation on Thread creation/destruction
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*/
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DisableThreadLibraryCalls(hinstDLL);
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isc__mem_initialize();
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isc__tls_initialize();
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break;
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/*
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* The DLL is unloading from a process due to process
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* termination or a call to FreeLibrary.
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*/
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case DLL_PROCESS_DETACH:
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isc__tls_shutdown();
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isc__mem_shutdown();
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break;
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case DLL_THREAD_ATTACH:
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case DLL_THREAD_DETACH:
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/*
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* Calling DllMain when attaching/detaching process has been
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* disabled.
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*/
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INSIST(0);
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ISC_UNREACHABLE();
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break;
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default:
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break;
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}
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return (TRUE);
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}
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