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44 lines
1007 B
C
44 lines
1007 B
C
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/*
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** Copyright 2001-2002, Travis Geiselbrecht. All rights reserved.
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** Distributed under the terms of the NewOS License.
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*/
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#ifndef _KERNEL_TIMER_H
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#define _KERNEL_TIMER_H
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#include <stage2.h>
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typedef int (*timer_callback)(void *);
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typedef enum {
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TIMER_MODE_ONESHOT = 0,
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TIMER_MODE_PERIODIC
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} timer_mode;
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struct timer_event {
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struct timer_event *next;
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timer_mode mode;
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bigtime_t sched_time;
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bigtime_t periodic_time;
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timer_callback func;
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void *data;
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};
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void timer_setup_timer(timer_callback func, void *data, struct timer_event *event);
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int timer_set_event(bigtime_t relative_time, timer_mode mode, struct timer_event *event);
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int timer_cancel_event(struct timer_event *event);
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void spin(bigtime_t microseconds);
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/* kernel functions */
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int timer_init(kernel_args *);
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int timer_interrupt(void);
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/*
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* these two are only to be used by the scheduler
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*/
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int local_timer_cancel_event(struct timer_event *event);
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int _local_timer_cancel_event(int curr_cpu, struct timer_event *event);
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#endif
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