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/*
* (C) Copyright 2014 Leo C. <erbl259-lmu@yahoo.de>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include "common.h"
#include "background.h"
#define BG_FUNC_MAX 5
static struct {
bg_func fct;
int param;
} func_tab[BG_FUNC_MAX];
static int_fast8_t fcount;
int bg_register(bg_func f, int initval)
{
if (fcount < BG_FUNC_MAX) {
func_tab[fcount].fct = f;
func_tab[fcount].param = initval;
return ++fcount - 1;
}
return -1;
}
int bg_setstat(int handle, int val)
{
if (handle < fcount) {
func_tab[handle].param = val;
return 1;
}
return 0;
}
int bg_getstat(int handle)
{
if (handle < fcount) {
return func_tab[handle].param;
}
return 0;
}
void bg_shed(void)
{
static int_fast8_t current;
if (func_tab[current].fct) {
int v = func_tab[current].fct(func_tab[current].param);
func_tab[current].param = v;
}
if (++current >= fcount)
current = 0;
}
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