mosquitto/src/lib_load.h

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/*
Copyright (c) 2012-2020 Roger Light <roger@atchoo.org>
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All rights reserved. This program and the accompanying materials
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are made available under the terms of the Eclipse Public License 2.0
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and Eclipse Distribution License v1.0 which accompany this distribution.
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The Eclipse Public License is available at
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https://www.eclipse.org/legal/epl-2.0/
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and the Eclipse Distribution License is available at
http://www.eclipse.org/org/documents/edl-v10.php.
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SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause
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Contributors:
Roger Light - initial implementation and documentation.
*/
#ifndef LIB_LOAD_H
#define LIB_LOAD_H
#ifdef WIN32
# include <windows.h>
#else
# include <dlfcn.h>
#endif
#ifdef WIN32
# define LIB_LOAD(A) LoadLibrary(A)
# define LIB_CLOSE(A) FreeLibrary(A)
# define LIB_SYM(HANDLE, SYM) GetProcAddress(HANDLE, SYM)
#else
# define LIB_LOAD(A) dlopen(A, RTLD_NOW|RTLD_GLOBAL)
# define LIB_CLOSE(A) dlclose(A)
# define LIB_SYM(HANDLE, SYM) dlsym(HANDLE, SYM)
#endif
#define LIB_SYM_EASY(MEMBER, HANDLE, SYM) if(!(MEMBER = LIB_SYM(HANDLE, SYM)) return 1
#endif