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1 | jermar | 1 | /* |
2071 | jermar | 2 | * Copyright (c) 2001-2004 Jakub Jermar |
1 | jermar | 3 | * All rights reserved. |
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 | |||
1731 | jermar | 29 | /** @addtogroup time |
1702 | cejka | 30 | * @{ |
31 | */ |
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32 | /** @file |
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33 | */ |
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34 | |||
1881 | jermar | 35 | #ifndef KERN_TIMEOUT_H_ |
36 | #define KERN_TIMEOUT_H_ |
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1 | jermar | 37 | |
38 | #include <arch/types.h> |
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2103 | decky | 39 | #include <adt/list.h> |
40 | #include <cpu.h> |
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1 | jermar | 41 | |
2103 | decky | 42 | typedef void (* timeout_handler_t)(void *arg); |
43 | |||
44 | typedef struct { |
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45 | SPINLOCK_DECLARE(lock); |
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46 | |||
2106 | jermar | 47 | /** Link to the list of active timeouts on THE->cpu */ |
48 | link_t link; |
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49 | /** Timeout will be activated in this amount of clock() ticks. */ |
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50 | uint64_t ticks; |
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51 | /** Function that will be called on timeout activation. */ |
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52 | timeout_handler_t handler; |
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53 | /** Argument to be passed to handler() function. */ |
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54 | void *arg; |
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55 | /** On which processor is this timeout registered. */ |
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56 | cpu_t *cpu; |
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2103 | decky | 57 | } timeout_t; |
58 | |||
2089 | decky | 59 | #define us2ticks(us) ((uint64_t) (((uint32_t) (us) / (1000000 / HZ)))) |
1 | jermar | 60 | |
61 | extern void timeout_init(void); |
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62 | extern void timeout_initialize(timeout_t *t); |
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63 | extern void timeout_reinitialize(timeout_t *t); |
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2106 | jermar | 64 | extern void timeout_register(timeout_t *t, uint64_t usec, timeout_handler_t f, |
65 | void *arg); |
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411 | jermar | 66 | extern bool timeout_unregister(timeout_t *t); |
1 | jermar | 67 | |
68 | #endif |
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1702 | cejka | 69 | |
1731 | jermar | 70 | /** @} |
1702 | cejka | 71 | */ |