[6cff9f3] | 1 | // -*- Mode: CFA -*-
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| 2 | //
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| 3 | // Cforall Version 1.0.0 Copyright (C) 2016 University of Waterloo
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| 4 | //
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| 5 | // The contents of this file are covered under the licence agreement in the
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| 6 | // file "LICENCE" distributed with Cforall.
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| 7 | //
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| 8 | // alarm.h --
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| 9 | //
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| 10 | // Author : Thierry Delisle
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| 11 | // Created On : Fri Jun 2 11:31:25 2017
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| 12 | // Last Modified By : Thierry Delisle
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| 13 | // Last Modified On : --
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| 14 | // Update Count : 0
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| 15 | //
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| 16 |
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| 17 | #ifndef ALARM_H
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| 18 | #define ALARM_H
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| 19 |
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[c81ebf9] | 20 | #include <stdbool.h>
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| 21 |
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[6cff9f3] | 22 | #include "assert"
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| 23 |
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[c81ebf9] | 24 | typedef unsigned long int __cfa_time_t;
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[6cff9f3] | 25 |
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| 26 | struct thread_desc;
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| 27 | struct processor;
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| 28 |
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[c81ebf9] | 29 | //=============================================================================================
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| 30 | // Clock logic
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| 31 | //=============================================================================================
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| 32 |
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| 33 | #define TIMEGRAN 1_000_000_000L // nanosecond granularity, except for timeval
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| 34 |
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| 35 | __cfa_time_t __kernel_get_time();
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| 36 | void __kernel_set_timer( __cfa_time_t alarm );
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| 37 |
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| 38 | //=============================================================================================
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| 39 | // Alarm logic
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| 40 | //=============================================================================================
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| 41 |
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[6cff9f3] | 42 | struct alarm_node_t {
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[c81ebf9] | 43 | __cfa_time_t alarm; // time when alarm goes off
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| 44 | __cfa_time_t period; // if > 0 => period of alarm
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| 45 | alarm_node_t * next; // intrusive link list field
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[6cff9f3] | 46 |
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| 47 | union {
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| 48 | thread_desc * thrd; // thrd who created event
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| 49 | processor * proc; // proc who created event
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| 50 | };
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[c81ebf9] | 51 |
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| 52 | bool set :1; // whether or not the alarm has be registered
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| 53 | bool kernel_alarm :1; // true if this is not a user defined alarm
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[6cff9f3] | 54 | };
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| 55 |
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| 56 | typedef alarm_node_t ** __alarm_it_t;
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| 57 |
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[c81ebf9] | 58 | void ?{}( alarm_node_t * this, thread_desc * thrd, __cfa_time_t alarm = 0, __cfa_time_t period = 0 );
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| 59 | void ?{}( alarm_node_t * this, processor * proc, __cfa_time_t alarm = 0, __cfa_time_t period = 0 );
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| 60 | void ^?{}( alarm_node_t * this );
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[6cff9f3] | 61 |
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| 62 | struct alarm_list_t {
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| 63 | alarm_node_t * head;
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| 64 | __alarm_it_t tail;
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| 65 | };
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| 66 |
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| 67 | static inline void ?{}( alarm_list_t * this ) {
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| 68 | this->head = 0;
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| 69 | this->tail = &this->head;
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| 70 | }
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| 71 |
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| 72 | void insert( alarm_list_t * this, alarm_node_t * n );
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| 73 | alarm_node_t * pop( alarm_list_t * this );
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| 74 |
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[c81ebf9] | 75 | void register_self ( alarm_node_t * this );
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| 76 | void unregister_self( alarm_node_t * this );
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| 77 |
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[6cff9f3] | 78 | #endif
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| 79 |
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| 80 | // Local Variables: //
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| 81 | // mode: CFA //
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| 82 | // tab-width: 6 //
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| 83 | // End: //
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