Subversion Repositories HelenOS

Rev

Rev 2089 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
1 jermar 1
/*
2071 jermar 2
 * Copyright (c) 2001-2004 Jakub Jermar
1 jermar 3
 * All rights reserved.
4
 *
5
 * Redistribution and use in source and binary forms, with or without
6
 * modification, are permitted provided that the following conditions
7
 * are met:
8
 *
9
 * - Redistributions of source code must retain the above copyright
10
 *   notice, this list of conditions and the following disclaimer.
11
 * - Redistributions in binary form must reproduce the above copyright
12
 *   notice, this list of conditions and the following disclaimer in the
13
 *   documentation and/or other materials provided with the distribution.
14
 * - The name of the author may not be used to endorse or promote products
15
 *   derived from this software without specific prior written permission.
16
 *
17
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
 */
28
 
1731 jermar 29
/** @addtogroup time
1702 cejka 30
 * @{
31
 */
32
/** @file
33
 */
34
 
1881 jermar 35
#ifndef KERN_TIMEOUT_H_
36
#define KERN_TIMEOUT_H_
1 jermar 37
 
38
#include <arch/types.h>
2103 decky 39
#include <adt/list.h>
40
#include <cpu.h>
1 jermar 41
 
2103 decky 42
typedef void (* timeout_handler_t)(void *arg);
43
 
44
typedef struct {
45
    SPINLOCK_DECLARE(lock);
46
 
47
    link_t link;            /**< Link to the list of active timeouts on THE->cpu */
48
 
49
    uint64_t ticks;         /**< Timeout will be activated in this amount of clock() ticks. */
50
 
51
    timeout_handler_t handler;  /**< Function that will be called on timeout activation. */
52
    void *arg;          /**< Argument to be passed to handler() function. */
53
 
54
    cpu_t *cpu;         /**< On which processor is this timeout registered. */
55
} timeout_t;
56
 
2089 decky 57
#define us2ticks(us)    ((uint64_t) (((uint32_t) (us) / (1000000 / HZ))))
1 jermar 58
 
59
extern void timeout_init(void);
60
extern void timeout_initialize(timeout_t *t);
61
extern void timeout_reinitialize(timeout_t *t);
1780 jermar 62
extern void timeout_register(timeout_t *t, uint64_t usec, timeout_handler_t f, void *arg);
411 jermar 63
extern bool timeout_unregister(timeout_t *t);
1 jermar 64
 
65
#endif
1702 cejka 66
 
1731 jermar 67
/** @}
1702 cejka 68
 */