/*
* $Id: muxevent.h,v 1.1 2005/06/22 22:09:45 murrayma Exp $
*
* Author: Markus Stenberg <fingon@iki.fi>
*
* Copyright (c) 1996 Markus Stenberg
* All rights reserved
*
* Created: Tue Aug 27 19:02:00 1996 fingon
* Last modified: Sat Jun 6 22:20:36 1998 fingon
*
*/
#ifndef MUXEVENT_H
#define MUXEVENT_H
/* EVENT_DEBUG adds some useful debugging information to the structure
/ allows more diverse set of error messages to be shown. However,
for a run-time version it's practically useless. */
/* #undef EVENT_DEBUG */
#define FLAG_FREE_DATA 1 /* Free the 1st data segment after execution */
#define FLAG_FREE_DATA2 2 /* Free the 2nd data segment after execution */
#define FLAG_ZOMBIE 4 /* Exists there just because we're too
lazy to search for it everywhere - dud */
/* ZOMBIE events aren't moved during reschedule, they instead die then.
Killing them outside event_run is kinda unhealthy, therefore we set things
just ZOMBIE and delete if it's convenient for us. */
/* Main idea: Events are arranged as follows:
- next 1-60sec (depending on present timing) each their own
linked list
- next hour with each min in the own linked list
- next 60 hours with each hour in the own linked list
- the rest in one huge 'stack', ordered according to time
*/
/* typedef unsigned char byte; */
typedef struct my_event_type {
char flags;
void (*function) (struct my_event_type *);
void *data;
void *data2;
int tick; /* The tick this baby was first scheduled to go off */
char type;
struct my_event_type *next;
struct my_event_type *next_in_main;
struct my_event_type *prev_in_main;
struct my_event_type *prev_in_type;
struct my_event_type *next_in_type;
} MUXEVENT;
/* Some external things _do_ use this one */
extern int muxevent_tick;
#include "p.event.h"
/* Simplified event adding is more or less irrelevant, most programs
tend to make their own macros for it. This is an example,
though. */
#define muxevent_add_simple_arg(time,func,data) muxevent_add(time,0,0,func,data, NULL)
#define muxevent_add_simple_noarg(time,func) muxevent_add(time,0,0,func,NULL, NULL)
/* Macros for handling simple lists
Where it applies: a = main list, b = thing to be added, c = prev
field, d = next field (c = next field in case of single-linked
model */
#define REMOVE_FROM_LIST(a,c,b) if (a == b ) a = b->c; else { MUXEVENT *t; \
for (t=a;t->c != b;t=t->c); t->c = b->c; }
#define REMOVE_FROM_BIDIR_LIST(a,c,d,b) if (b->c) b->c->d = b->d; \
if (b->d) b->d->c = b->c; if (a==b) { a=b->d; if (a) a->c=NULL; }
#define ADD_TO_LIST_HEAD(a,c,b) b->c = a ; a = b
#define ADD_TO_BIDIR_LIST_HEAD(a,c,d,b) b->d=a ; if (a) a->c = b ; a=b ; \
b->c=NULL
/* The standard debugging macro.. Should be more or less useless
because this is mostly used in daemon type of programs. */
#ifdef DEBUG
#define debug(a...) printf(##a)
#else
#define debug(a...)
#endif
void muxevent_add(int time, int flags, int type, void (*func) (MUXEVENT *),
void *data, void *data2);
void muxevent_gothru_type_data(int type, void *data, void (*func) (MUXEVENT *));
void event_gothru_type(int type, void (*func) (MUXEVENT *));
/* Did I mention cproto is braindead? */
#endif /* MUXEVENT_H */