/* * Copyright (c) 2018, 2022, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. *
*/
// The 'A' at the end means the ANSI (not the UNICODE) versions of the methods
_GetIfTable2 = (GetIfTable2_Fn)::GetProcAddress(_hModule, "GetIfTable2");
_FreeMibTable = (FreeMibTable_Fn)::GetProcAddress(_hModule, "FreeMibTable");
// interlock is used for fencing
InterlockedExchange(&_initialized, 1);
}
bool IphlpDll::IphlpDetach(void) { LONG prev_ref_count = InterlockedExchangeAdd(&_iphlp_reference_count, -1); BOOL ret = false;
if (1 == prev_ref_count) { if (_initialized && _hModule != NULL) {
ret = FreeLibrary(_hModule); if (ret) {
_hModule = NULL;
_GetIfTable2 = NULL;
_FreeMibTable = NULL;
InterlockedExchange(&_initialized, 0);
}
}
} return ret != 0;
}
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