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/*
* Copyright (C) 2020 Linux Studio Plugins Project <https://lsp-plug.in/>
* (C) 2020 Vladimir Sadovnikov <sadko4u@gmail.com>
*
* This file is part of lsp-plugin-fw
* Created on: 24 нояб. 2020 г.
*
* lsp-plugin-fw is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* lsp-plugin-fw 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with lsp-plugin-fw. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef LSP_PLUG_IN_PLUG_FW_PLUG_FACTORY_H_
#define LSP_PLUG_IN_PLUG_FW_PLUG_FACTORY_H_
#ifndef LSP_PLUG_IN_PLUG_FW_PLUG_IMPL_H_
#error "Use #include <lsp-plug.in/plug-fw/plug.h>"
#endif /* LSP_PLUG_IN_PLUG_FW_PLUG_IMPL_H_ */
#include <lsp-plug.in/plug-fw/version.h>
#include <lsp-plug.in/plug-fw/meta/types.h>
#include <lsp-plug.in/plug-fw/plug.h>
#include <lsp-plug.in/common/types.h>
#include <lsp-plug.in/common/status.h>
namespace lsp
{
namespace plug
{
class Factory;
/**
* Factory function
* @param meta
* @return
*/
typedef Module * (* factory_func_t)(const meta::plugin_t *meta);
/**
* Factory for plugin module
*/
class LSP_HIDDEN_MODIFIER Factory
{
private:
Factory & operator = (const Factory &);
private:
static Factory *pRoot;
Factory *pNext;
factory_func_t pFunc;
const meta::plugin_t **vList;
size_t nItems;
public:
explicit Factory();
explicit Factory(factory_func_t func, const meta::plugin_t **list, size_t items);
explicit Factory(factory_func_t func, const meta::plugin_t **list);
virtual ~Factory();
public:
/**
* Get root registered factory
* @return root registered factory
*/
static inline Factory *root() { return pRoot; }
/**
* Get next registered factory
* @return next registered factory
*/
inline Factory *next() { return pNext; }
public:
/**
* Enumerate the metadata for plugins produced by the factory
* @param index index of plugin starting with 0 and growing with 1
* @return plugin metadata or NULL if there is no more data in enumeration
*/
virtual const meta::plugin_t *enumerate(size_t index) const;
/**
* Create plugin module
* @param meta plugin metadata returned from enumerate() method
* @return pointer to created plugin or NULL on error.
* Plugin should be destroyed by the operator delete call
*/
virtual Module *create(const meta::plugin_t *meta) const;
};
} /* namespace plug */
} /* namespace lsp */
#endif /* LSP_PLUG_IN_PLUG_FW_PLUG_FACTORY_H_ */
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