4 * Copyright 2003, 2004, 2005 Develer S.r.l. (http://www.develer.com/)
5 * Copyright 1999, 2001, 2003 Bernardo Innocenti <bernie@develer.com>
6 * This file is part of DevLib - See README.devlib for information.
9 * \brief Events handling
11 * This module implements a common system for executing
12 * a user defined action calling a hook function.
16 * \author Bernardo Innocenti <bernie@develer.com>
21 *#* Revision 1.2 2005/11/27 03:02:55 bernie
22 *#* Convert to appconfig.h.
24 *#* Revision 1.1 2005/11/27 01:39:48 bernie
25 *#* Move event.[ch] from kern/ to mware/.
27 *#* Revision 1.11 2005/04/11 19:10:28 bernie
28 *#* Include top-level headers from cfg/ subdir.
30 *#* Revision 1.10 2005/01/24 04:22:02 bernie
31 *#* Update copyright information.
33 *#* Revision 1.9 2005/01/24 04:19:55 bernie
34 *#* Remove obsolete names.
36 *#* Revision 1.8 2005/01/24 04:19:05 bernie
37 *#* Function pointer based event dispatching.
39 *#* Revision 1.7 2004/08/25 14:12:09 rasky
40 *#* Aggiornato il comment block dei log RCS
42 *#* Revision 1.6 2004/08/14 19:37:57 rasky
43 *#* Merge da SC: macros.h, pool.h, BIT_CHANGE, nome dei processi, etc.
45 *#* Revision 1.5 2004/07/30 14:30:27 rasky
46 *#* Resa la sig_signal interrupt safe (con il nuovo scheduler IRQ-safe)
47 *#* Rimossa event_doIntr (ora inutile) e semplificata la logica delle macro con funzioni inline
49 *#* Revision 1.4 2004/06/07 15:58:00 aleph
50 *#* Add function prototypes
52 *#* Revision 1.3 2004/06/06 18:25:44 bernie
53 *#* Rename event macros to look like regular functions.
55 *#* Revision 1.2 2004/06/03 11:27:09 bernie
56 *#* Add dual-license information.
58 *#* Revision 1.1 2004/05/23 17:27:00 bernie
59 *#* Import kern/ subdirectory.
65 #include <appconfig.h>
68 #include <cfg/config_kern.h>
69 #if defined(CONFIG_KERN_SIGNALS) && CONFIG_KERN_SIGNALS
75 //! User defined callback type
76 typedef void (*Hook)(void *);
80 void (*action)(struct Event *);
83 #if defined(CONFIG_KERN_SIGNALS) && CONFIG_KERN_SIGNALS
86 struct Process *sig_proc; /* Process to be signalled */
87 sig_t sig_bit; /* Signal to send */
92 Hook func; /* Pointer to softint hook */
93 void *user_data; /* Data to be passed back to user hook */
98 void event_hook_ignore(Event *event);
99 void event_hook_signal(Event *event);
100 void event_hook_softint(Event *event);
102 /*! Initialize the event \a e as a no-op */
103 #define event_initNone(e) \
104 ((e)->action = event_hook_ignore)
106 /*! Same as event_initNone(), but returns the initialized event */
107 INLINE Event event_createNone(void);
108 INLINE Event event_createNone(void)
111 e.action = event_hook_ignore;
115 /*! Initialize the event \a e with a software interrupt (call function \a f, with parameter \a u) */
116 #define event_initSoftInt(e,f,u) \
117 ((e)->action = event_hook_softint,(e)->Ev.Int.func = (f), (e)->Ev.Int.user_data = (u))
119 /*! Same as event_initSoftInt(), but returns the initialized event */
120 INLINE Event event_createSoftInt(Hook func, void* user_data)
123 e.action = event_hook_softint;
124 e.Ev.Int.func = func;
125 e.Ev.Int.user_data = user_data;
130 #if defined(CONFIG_KERN_SIGNALS) && CONFIG_KERN_SIGNALS
132 /*! Initialize the event \a e with a signal (send signal \a s to process \a p) */
133 #define event_initSignal(e,p,s) \
134 ((e)->action = event_hook_signal,(e)->Ev.Sig.sig_proc = (p), (e)->Ev.Sig.sig_bit = (s))
136 /*! Same as event_initSignal(), but returns the initialized event */
137 INLINE Event event_createSignal(struct Process* proc, sig_t bit)
140 e.action = event_hook_signal;
141 e.Ev.Sig.sig_proc = proc;
142 e.Ev.Sig.sig_bit = bit;
148 /*! Trigger an event */
149 INLINE void event_do(struct Event* e)
154 #endif /* KERN_EVENT_H */