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/*******************************************************************************
* Copyright 2009-2016 Jörg Müller
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
******************************************************************************/
#include "plugin/PluginManager.h"
#include <dlfcn.h>
#include <dirent.h>
AUD_NAMESPACE_BEGIN
std::unordered_map<std::string, void*> PluginManager::m_plugins;
void* PluginManager::openLibrary(const std::string& path)
{
return dlopen(path.c_str(), RTLD_LAZY);
}
void *PluginManager::lookupLibrary(void *handle, const std::string &name)
{
return dlsym(handle, name.c_str());
}
void PluginManager::closeLibrary(void *handle)
{
dlclose(handle);
}
bool PluginManager::loadPlugin(const std::string& path)
{
void* handle = openLibrary(path);
if (!handle)
return false;
void (*registerPlugin)() = (void (*)())lookupLibrary(handle, "registerPlugin");
const char* (*getName)() = (const char* (*)())lookupLibrary(handle, "getName");
if(!registerPlugin || !getName)
{
closeLibrary(handle);
return false;
}
registerPlugin();
m_plugins[getName()] = handle;
return true;
}
#define STATIC_PLUGIN_CLASS(name) class name { public: static void registerPlugin(); };
#define STATIC_PLUGIN_REGISTER(name) name::registerPlugin();
@STATIC_PLUGIN_CLASSES@
void PluginManager::loadPlugins(const std::string& path)
{
@STATIC_PLUGIN_REGISTERS@
std::string readpath = path;
if(path == "")
readpath = "@DEFAULT_PLUGIN_PATH@";
DIR* dir = opendir(readpath.c_str());
if(!dir)
return;
while(dirent* entry = readdir(dir))
{
const std::string filename = entry->d_name;
const std::string end = ".so";
if(filename.length() >= end.length() && filename.substr(filename.length() - end.length()) == end)
{
if(!loadPlugin(readpath + "/" + filename + ".@AUDASPACE_VERSION@"))
loadPlugin(readpath + "/" + filename);
}
}
closedir(dir);
}
AUD_NAMESPACE_END
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