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/*
* luaplugin - fast lua plugin indexing
* Copyright (C) 2008 Felix Fietkau <nbd@openwrt.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation
*
* This program 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 General Public License for more details.
*/
#ifndef __LUAPLUGIN_H
#define __LUAPLUGIN_H
#include <sys/time.h>
#include <lualib.h>
#include <lauxlib.h>
#include <stdbool.h>
#include "list.h"
struct luaplugin_entry {
struct luaplugin_ctx *ctx;
struct list_head list;
time_t timestamp;
int checked;
bool loaded;
bool reload;
char *name;
char *module;
/* privdata for the caller */
void *priv;
};
struct luaplugin_ctx {
const char *path;
const struct luaplugin_ops *ops;
lua_State *L;
int checked;
struct list_head *last;
struct list_head entries;
};
/** luaplugin_init:
* initialize the luaplugin context (allocates a new lua context)
*/
extern int luaplugin_init(struct luaplugin_ctx *ctx, const char *path);
/** luaplugin_scan:
* rescan the plugin cache
*/
extern void luaplugin_scan(struct luaplugin_ctx *ctx);
/** luaplugin_call:
* call out to a lua function.
* to be able to use this, you need to push the function name on the lua stack (ctx->L)
* and then narg function arguments afterwards.
* this call pops (narg + 1) arguments from the stack
* returns -ENOENT if the function was not found
*/
extern int luaplugin_call(struct luaplugin_entry *e, int narg);
/** luaplugin_done:
* drop the luaplugin context (and associated lua context)
* frees all memory allocated by the library
*/
extern void luaplugin_done(struct luaplugin_ctx *ctx);
#endif
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