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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2020 by William Wilgus
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#ifndef OPEN_PLUGIN_H
#define OPEN_PLUGIN_H
/* Open_plugin module
* OP stores and retrieves plugin path and parameters by key
* from a dictionary file
*
* plugins can load other plugins
* return rb->plugin_open(path, parameter);
*/
#ifndef __PCTOOL__
/* open_plugin path lookup */
#define OPEN_PLUGIN_DAT PLUGIN_DIR "/plugin.dat"
#define OPEN_PLUGIN_BUFSZ MAX_PATH
#define OPEN_PLUGIN_NAMESZ 32
struct open_plugin_entry_t
{
uint32_t hash;
int32_t lang_id;
char name[OPEN_PLUGIN_NAMESZ+1];
/*char key[OPEN_PLUGIN_BUFSZ+1];*/
char path[OPEN_PLUGIN_BUFSZ+1];
char param[OPEN_PLUGIN_BUFSZ+1];
};
inline static void open_plugin_get_hash(const char *key, uint32_t *hash)
{
/* Calculate modified FNV1a hash of string */
const uint32_t p = 16777619;
*hash = 0x811C9DC5; //seed, 2166136261;
while(*key)
*hash = (*key++ ^ *hash) * p;
}
#ifndef PLUGIN
extern struct open_plugin_entry_t open_plugin_entry;
uint32_t open_plugin_add_path(const char *key, const char *plugin, const char *parameter);
int open_plugin_get_entry(const char *key, struct open_plugin_entry_t *entry);
void open_plugin_browse(const char *key);
int open_plugin_run(const char *key);
void open_plugin_cache_flush(void); /* flush to disk */
#endif
#endif /*ndef __PCTOOL__ */
#endif /* OPEN_PLUGIN_H */
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