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/*
* Copyright © 2016 Keith Packard <keithp@keithp.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
#ifndef _AO_SCHEME_OS_H_
#define _AO_SCHEME_OS_H_
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
extern int ao_scheme_getc(void);
static inline void
ao_scheme_os_flush(void) {
fflush(stdout);
}
static inline void
ao_scheme_abort(void)
{
abort();
}
static inline void
ao_scheme_os_led(int led)
{
printf("leds set to 0x%x\n", led);
}
#define AO_SCHEME_JIFFIES_PER_SECOND 100
static inline void
ao_scheme_os_delay(int jiffies)
{
struct timespec ts = {
.tv_sec = jiffies / AO_SCHEME_JIFFIES_PER_SECOND,
.tv_nsec = (jiffies % AO_SCHEME_JIFFIES_PER_SECOND) * (1000000000L / AO_SCHEME_JIFFIES_PER_SECOND)
};
nanosleep(&ts, NULL);
}
static inline int
ao_scheme_os_jiffy(void)
{
struct timespec tp;
clock_gettime(CLOCK_MONOTONIC, &tp);
return tp.tv_sec * AO_SCHEME_JIFFIES_PER_SECOND + (tp.tv_nsec / (1000000000L / AO_SCHEME_JIFFIES_PER_SECOND));
}
#endif
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