src/AmigaOS/timer_amiga.cpp

/*
 *  timer_amiga.cpp - Time Manager emulation, AmigaOS specific stuff
 *
 *  Basilisk II (C) 1997-1999 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 <exec/types.h>
#include <devices/timer.h>
#include <proto/timer.h>
#include <proto/intuition.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"));
        struct timeval tv;
        GetSysTime(&tv);
        uint64 tl = (uint64)tv.tv_secs * 1000000 + tv.tv_micro;
        hi = tl >> 32;
        lo = tl;
}


/*
 *  Return local date/time in Mac format (seconds since 1.1.1904)
 */

uint32 TimerDateTime(void)
{
        ULONG secs;
        ULONG mics;
        CurrentTime(&secs, &mics);
        return secs + TIME_OFFSET;
}


/*
 *  Get current time
 */

void timer_current_time(tm_time_t &t)
{
        GetSysTime(&t);
}


/*
 *  Add times
 */

void timer_add_time(tm_time_t &res, tm_time_t a, tm_time_t b)
{
        res = a;
        AddTime(&res, &b);
}


/*
 *  Subtract times
 */

void timer_sub_time(tm_time_t &res, tm_time_t a, tm_time_t b)
{
        res = a;
        SubTime(&res, &b);
}


/*
 *  Compare times (<0: a < b, =0: a = b, >0: a > b)
 */

int timer_cmp_time(tm_time_t a, tm_time_t b)
{
        return CmpTime(&b, &a);
}


/*
 *  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.tv_secs = mactime / 1000;                   // Time in milliseconds
                res.tv_micro = (mactime % 1000) * 1000;
        } else {
                res.tv_secs = -mactime / 1000000;               // Time in negative microseconds
                res.tv_micro = -mactime % 1000000;
        }
}


/*
 *  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.tv_secs < 0)
                return 0;
        else {
                uint64 t = (uint64)hosttime.tv_secs * 1000000 + hosttime.tv_micro;
                if (t > 0x7fffffff)
                        return t / 1000;        // Time in milliseconds
                else
                        return -t;                      // Time in negative microseconds
        }
}
Revision:	1.3
Committed:	1999-11-01T16:24:13Z (24 years, 8 months ago) by cebix
Branch:	MAIN
CVS Tags:	snapshot-22121999, release-0_8-1, snapshot-02111999
Changes since 1.2:	+10 -8 lines
Log Message:	- AmigaOS: removed support for SAS/C - AmigaOS: sys_amiga.cpp: supports 64-bit device access and respects device block size on writes - AmigaOS: added support for resource forks and Finder info for ExtFS - AmigaOS: added "ExtFS" gadget to prefs editor - protection mask for all open()/creat()/mkdir() calls is now 0666 or 0777
#	Content
1	/*
2	* timer_amiga.cpp - Time Manager emulation, AmigaOS specific stuff
3	*
4	* Basilisk II (C) 1997-1999 Christian Bauer
5	*
6	* This program is free software; you can redistribute it and/or modify
7	* it under the terms of the GNU General Public License as published by
8	* the Free Software Foundation; either version 2 of the License, or
9	* (at your option) any later version.
10	*
11	* This program is distributed in the hope that it will be useful,
12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14	* GNU General Public License for more details.
15	*
16	* You should have received a copy of the GNU General Public License
17	* along with this program; if not, write to the Free Software
18	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19	*/
20
21	#include <exec/types.h>
22	#include <devices/timer.h>
23	#include <proto/timer.h>
24	#include <proto/intuition.h>
25
26	#include "sysdeps.h"
27	#include "timer.h"
28
29	#define DEBUG 0
30	#include "debug.h"
31
32
33	/*
34	* Return microseconds since boot (64 bit)
35	*/
36
37	void Microseconds(uint32 &hi, uint32 &lo)
38	{
39	D(bug("Microseconds\n"));
40	struct timeval tv;
41	GetSysTime(&tv);
42	uint64 tl = (uint64)tv.tv_secs * 1000000 + tv.tv_micro;
43	hi = tl >> 32;
44	lo = tl;
45	}
46
47
48	/*
49	* Return local date/time in Mac format (seconds since 1.1.1904)
50	*/
51
52	uint32 TimerDateTime(void)
53	{
54	ULONG secs;
55	ULONG mics;
56	CurrentTime(&secs, &mics);
57	return secs + TIME_OFFSET;
58	}
59
60
61	/*
62	* Get current time
63	*/
64
65	void timer_current_time(tm_time_t &t)
66	{
67	GetSysTime(&t);
68	}
69
70
71	/*
72	* Add times
73	*/
74
75	void timer_add_time(tm_time_t &res, tm_time_t a, tm_time_t b)
76	{
77	res = a;
78	AddTime(&res, &b);
79	}
80
81
82	/*
83	* Subtract times
84	*/
85
86	void timer_sub_time(tm_time_t &res, tm_time_t a, tm_time_t b)
87	{
88	res = a;
89	SubTime(&res, &b);
90	}
91
92
93	/*
94	* Compare times (<0: a < b, =0: a = b, >0: a > b)
95	*/
96
97	int timer_cmp_time(tm_time_t a, tm_time_t b)
98	{
99	return CmpTime(&b, &a);
100	}
101
102
103	/*
104	* Convert Mac time value (>0: microseconds, <0: microseconds) to tm_time_t
105	*/
106
107	void timer_mac2host_time(tm_time_t &res, int32 mactime)
108	{
109	if (mactime > 0) {
110	res.tv_secs = mactime / 1000; // Time in milliseconds
111	res.tv_micro = (mactime % 1000) * 1000;
112	} else {
113	res.tv_secs = -mactime / 1000000; // Time in negative microseconds
114	res.tv_micro = -mactime % 1000000;
115	}
116	}
117
118
119	/*
120	* Convert positive tm_time_t to Mac time value (>0: microseconds, <0: microseconds)
121	* A negative input value for hosttime results in a zero return value
122	* As long as the microseconds value fits in 32 bit, it must not be converted to milliseconds!
123	*/
124
125	int32 timer_host2mac_time(tm_time_t hosttime)
126	{
127	if (hosttime.tv_secs < 0)
128	return 0;
129	else {
130	uint64 t = (uint64)hosttime.tv_secs * 1000000 + hosttime.tv_micro;
131	if (t > 0x7fffffff)
132	return t / 1000; // Time in milliseconds
133	else
134	return -t; // Time in negative microseconds
135	}
136	}