125 lines
3.1 KiB
C
125 lines
3.1 KiB
C
/* $Id$ */
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/* Copyright (c) 2008-2018 Pierre Pronchery <khorben@defora.org> */
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/* This file is part of DeforaOS System libSystem */
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/* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
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* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
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* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
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#include <stddef.h>
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#ifdef __WIN32__
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# include <windows.h>
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#else
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# include <dlfcn.h>
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#endif
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#include "System/error.h"
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#include "System/plugin.h"
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/* Plugin */
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/* private */
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/* constants */
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#if defined(__APPLE__)
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# define PLUGIN_EXTENSION ".dylib"
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#elif defined(__WIN32__)
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# define PLUGIN_EXTENSION ".dll"
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#else
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# define PLUGIN_EXTENSION ".so"
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#endif
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/* prototypes */
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static Plugin * _plugin_open(String const * filename);
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/* functions */
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static Plugin * _plugin_open(String const * filename)
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{
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#ifdef __WIN32__
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if(filename == NULL)
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return GetModuleHandle(NULL);
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return LoadLibraryEx(filename, NULL, LOAD_WITH_ALTERED_SEARCH_PATH);
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#else
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Plugin * plugin;
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if((plugin = dlopen(filename, RTLD_LAZY)) == NULL)
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error_set_code(1, "%s", dlerror());
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return plugin;
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#endif
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}
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/* public */
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/* functions */
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/* plugin_new */
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Plugin * plugin_new(String const * libdir, String const * package,
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String const * type, String const * name)
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{
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Plugin * plugin;
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String * filename;
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char const ext[] = PLUGIN_EXTENSION;
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if((filename = string_new_append(libdir, "/", package, "/", type, "/",
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name, ext, NULL)) == NULL)
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return NULL;
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plugin = _plugin_open(filename);
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string_delete(filename);
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return plugin;
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}
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/* plugin_new_self */
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Plugin * plugin_new_self(void)
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{
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return _plugin_open(NULL);
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}
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/* plugin_delete */
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void plugin_delete(Plugin * plugin)
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{
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#ifdef __WIN32__
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FreeLibrary(plugin);
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#else
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dlclose(plugin);
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#endif
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}
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/* useful */
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/* plugin_lookup */
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void * plugin_lookup(Plugin * plugin, String const * symbol)
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{
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#ifdef __WIN32__
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return GetProcAddress(plugin, symbol);
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#else
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void * ret;
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if((ret = dlsym(plugin, symbol)) == NULL)
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error_set_code(1, "%s", dlerror());
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return ret;
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#endif
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}
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