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- /*
- * timer_beos.cpp - Time Manager emulation, BeOS specific stuff
- *
- * Basilisk II (C) 1997-2001 Christian Bauer
- *
- * 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; either version 2 of the License, or
- * (at your option) any later version.
- *
- * 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
- */
-
- #include <KernelKit.h>
-
- #include "sysdeps.h"
- #include "timer.h"
-
- #define DEBUG 0
- #include "debug.h"
-
-
- /*
- * Return microseconds since boot (64 bit)
- */
-
- void Microseconds(uint32 &hi, uint32 &lo)
- {
- D(bug("Microseconds\n"));
- bigtime_t time = system_time();
- hi = time >> 32;
- lo = time;
- }
-
-
- /*
- * Return local date/time in Mac format (seconds since 1.1.1904)
- */
-
- uint32 TimerDateTime(void)
- {
- time_t utc_now = time(NULL);
- long tz = timezone;
- time_t local_now = utc_now - tz;
- if (daylight)
- local_now += 3600;
- return (uint32)local_now + TIME_OFFSET;
- }
-
-
- /*
- * Get current time
- */
-
- void timer_current_time(tm_time_t &t)
- {
- t = system_time();
- }
-
-
- /*
- * Add times
- */
-
- void timer_add_time(tm_time_t &res, tm_time_t a, tm_time_t b)
- {
- res = a + b;
- }
-
-
- /*
- * Subtract times
- */
-
- void timer_sub_time(tm_time_t &res, tm_time_t a, tm_time_t b)
- {
- res = a - b;
- }
-
-
- /*
- * Compare times (<0: a < b, =0: a = b, >0: a > b)
- */
-
- int timer_cmp_time(tm_time_t a, tm_time_t b)
- {
- tm_time_t r = a - b;
- return r < 0 ? -1 : (r > 0 ? 1 : 0);
- }
-
-
- /*
- * Convert Mac time value (>0: microseconds, <0: microseconds) to tm_time_t
- */
-
- void timer_mac2host_time(tm_time_t &res, int32 mactime)
- {
- if (mactime > 0)
- res = mactime * 1000; // Time in milliseconds
- else
- res = -mactime; // Time in negative microseconds
- }
-
-
- /*
- * Convert positive tm_time_t to Mac time value (>0: microseconds, <0: microseconds)
- * A negative input value for hosttime results in a zero return value
- * As long as the microseconds value fits in 32 bit, it must not be converted to milliseconds!
- */
-
- int32 timer_host2mac_time(tm_time_t hosttime)
- {
- if (hosttime < 0)
- return 0;
- else if (hosttime > 0x7fffffff)
- return hosttime / 1000; // Time in milliseconds
- else
- return -hosttime; // Time in negative microseconds
- }
-