112 lines
2.4 KiB
C
112 lines
2.4 KiB
C
/* $Id$ */
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/* Copyright (c) 2008-2015 Pierre Pronchery <khorben@defora.org> */
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/* This file is part of DeforaOS System libSystem */
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/* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, version 3 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>. */
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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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