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6bb47a6882
git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@1054 3ae390bd-cb1e-0410-b409-cd5a39f66f1f
67 lines
2.2 KiB
C
67 lines
2.2 KiB
C
/* $Id: event.h 840 2007-09-09 12:17:42Z michael $
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* $URL: https://ssl.bulix.org/svn/lcd4linux/trunk/event.h $
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*
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* generic timer handling
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*
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* Copyright (C) 2009 Ed Martin <edman007@edman007.com>
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* Copyright (C) 2009 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net>
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*
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* This file is part of LCD4Linux.
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*
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* LCD4Linux is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* LCD4Linux is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*/
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#ifndef _EVENT_H_
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#define _EVENT_H_
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//events are identified by their file descriptor only
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/*
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* these functions allow plugins to add event hooks
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* (and thus break out of the main loop when sleeping)
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* these callbacks than then trigger named events to propagate
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* the event to the screen
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*/
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typedef enum {
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EVENT_READ = 1,
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EVENT_WRITE = 2,
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EVENT_HUP = 4,
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EVENT_ERR = 8
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} event_flags_t;
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int event_add(void (*callback) (event_flags_t flags, void *data), void *data, const int fd, const int read,
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const int write, const int active);
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int event_del(const int fd);
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int event_modify(const int fd, const int read, const int write, const int active);
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int event_process(const struct timespec *timeout);
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void event_exit(void);
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/*
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* These fuctions keep a list of the events to trigger on allowing multiple
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* things to trigger an event and multiple things to receive the event
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*/
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//add an event to be triggered
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int named_event_add(char *event, void (*callback) (void *data), void *data);
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//remove an event from the list of events
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int named_event_del(char *event, void (*callback) (void *data), void *data);
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int named_event_trigger(char *event); //call all calbacks for this event
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#endif
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