From 181cec4348da40331b3e8ab365732c025ec149b2 Mon Sep 17 00:00:00 2001 From: Reinhard Tartler Date: Wed, 27 Apr 2011 19:24:15 +0200 Subject: Import upstream version 0.11.0~svn1143 --- event.h | 68 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 68 insertions(+) create mode 100644 event.h (limited to 'event.h') diff --git a/event.h b/event.h new file mode 100644 index 0000000..6486a54 --- /dev/null +++ b/event.h @@ -0,0 +1,68 @@ +/* $Id: event.h 840 2007-09-09 12:17:42Z michael $ + * $URL: https://ssl.bulix.org/svn/lcd4linux/trunk/event.h $ + * + * generic timer handling + * + * Copyright (C) 2009 Ed Martin + * Copyright (C) 2009 The LCD4Linux Team + * + * This file is part of LCD4Linux. + * + * LCD4Linux 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, or (at your option) + * any later version. + * + * LCD4Linux 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + + +#ifndef _EVENT_H_ +#define _EVENT_H_ + +#include + +//events are identified by their file descriptor only + +/* + * these functions allow plugins to add event hooks + * (and thus break out of the main loop when sleeping) + * these callbacks than then trigger named events to propagate + * the event to the screen + */ + +typedef enum { + EVENT_READ = 1, + EVENT_WRITE = 2, + EVENT_HUP = 4, + EVENT_ERR = 8 +} event_flags_t; + + +int event_add(void (*callback) (event_flags_t flags, void *data), void *data, const int fd, const int read, + const int write, const int active); +int event_del(const int fd); +int event_modify(const int fd, const int read, const int write, const int active); +int event_process(const struct timespec *timeout); +void event_exit(void); + +/* + * These fuctions keep a list of the events to trigger on allowing multiple + * things to trigger an event and multiple things to receive the event + */ + +//add an event to be triggered +int named_event_add(char *event, void (*callback) (void *data), void *data); +//remove an event from the list of events +int named_event_del(char *event, void (*callback) (void *data), void *data); +int named_event_trigger(char *event); //call all calbacks for this event + +#endif -- cgit v1.2.3