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author | michael <michael@3ae390bd-cb1e-0410-b409-cd5a39f66f1f> | 2009-11-15 06:51:31 +0000 |
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committer | michael <michael@3ae390bd-cb1e-0410-b409-cd5a39f66f1f> | 2009-11-15 06:51:31 +0000 |
commit | 6bb47a68823bb85fb4040b2c7c984e639498b82c (patch) | |
tree | baa839a84f4cffea3e565382b43119ded68a9097 /event.h | |
parent | 3f6579900c3f3c7175209d7411d4ae87deabc48b (diff) | |
download | lcd4linux-6bb47a68823bb85fb4040b2c7c984e639498b82c.tar.gz |
event plugin and dbus interface by Ed Martin (forgot to add new files)
git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@1054 3ae390bd-cb1e-0410-b409-cd5a39f66f1f
Diffstat (limited to 'event.h')
-rw-r--r-- | event.h | 66 |
1 files changed, 66 insertions, 0 deletions
@@ -0,0 +1,66 @@ +/* $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 <edman007@edman007.com> + * Copyright (C) 2009 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net> + * + * 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_ + +//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 |