| 1 | /*
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| 2 | * Copyright (c) 2009 Jakub Jermar
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| 3 | * All rights reserved.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without
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| 6 | * modification, are permitted provided that the following conditions
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| 7 | * are met:
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| 8 | *
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| 9 | * - Redistributions of source code must retain the above copyright
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| 10 | * notice, this list of conditions and the following disclaimer.
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| 11 | * - Redistributions in binary form must reproduce the above copyright
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| 12 | * notice, this list of conditions and the following disclaimer in the
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| 13 | * documentation and/or other materials provided with the distribution.
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| 14 | * - The name of the author may not be used to endorse or promote products
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| 15 | * derived from this software without specific prior written permission.
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| 16 | *
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 27 | */
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| 28 |
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| 29 | /** @addtogroup generic
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| 30 | * @{
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| 31 | */
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| 32 | /** @file
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| 33 | */
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| 34 |
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| 35 | #ifndef KERN_EVENT_H_
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| 36 | #define KERN_EVENT_H_
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| 37 |
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| 38 | #include <ipc/event_types.h>
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| 39 | #include <typedefs.h>
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| 40 | #include <synch/spinlock.h>
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| 41 | #include <ipc/ipc.h>
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| 42 |
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| 43 | typedef void (*event_callback_t)(void);
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| 44 |
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| 45 | /** Event notification structure. */
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| 46 | typedef struct {
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| 47 | SPINLOCK_DECLARE(lock);
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| 48 |
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| 49 | /** Answerbox for notifications. */
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| 50 | answerbox_t *answerbox;
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| 51 | /** Interface and method to be used for the notification. */
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| 52 | sysarg_t imethod;
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| 53 | /** Counter. */
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| 54 | size_t counter;
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| 55 |
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| 56 | /** Masked flag. */
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| 57 | bool masked;
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| 58 | /** Unmask callback. */
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| 59 | event_callback_t unmask_callback;
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| 60 | } event_t;
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| 61 |
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| 62 | extern void event_init(void);
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| 63 | extern void event_cleanup_answerbox(answerbox_t *);
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| 64 | extern void event_set_unmask_callback(event_type_t, event_callback_t);
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| 65 |
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| 66 | #define event_notify_0(e, m) \
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| 67 | event_notify((e), (m), 0, 0, 0, 0, 0)
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| 68 | #define event_notify_1(e, m, a1) \
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| 69 | event_notify((e), (m), (a1), 0, 0, 0, 0)
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| 70 | #define event_notify_2(e, m, a1, a2) \
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| 71 | event_notify((e), (m), (a1), (a2), 0, 0, 0)
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| 72 | #define event_notify_3(e, m, a1, a2, a3) \
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| 73 | event_notify((e), (m), (a1), (a2), (a3), 0, 0)
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| 74 | #define event_notify_4(e, m, a1, a2, a3, a4) \
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| 75 | event_notify((e), (m), (a1), (a2), (a3), (a4), 0)
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| 76 | #define event_notify_5(e, m, a1, a2, a3, a4, a5) \
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| 77 | event_notify((e), (m), (a1), (a2), (a3), (a4), (a5))
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| 78 |
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| 79 | extern int event_notify(event_type_t, bool, sysarg_t, sysarg_t, sysarg_t,
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| 80 | sysarg_t, sysarg_t);
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| 81 |
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| 82 | extern sysarg_t sys_event_subscribe(sysarg_t, sysarg_t);
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| 83 | extern sysarg_t sys_event_unmask(sysarg_t);
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| 84 |
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| 85 | #endif
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| 86 |
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| 87 | /** @}
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| 88 | */
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