WebSVN – HelenOS – Diff – /branches/dynload/uspace/app/klog/klog.c


/*
 * Copyright (c) 2006 Ondrej Palkovsky
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
/** @addtogroup klog KLog
 * @brief HelenOS KLog
 * @{
 */
/**
 * @file
 */
 
#include <stdio.h>
#include <ipc/ipc.h>
#include <async.h>
#include <ipc/services.h>
#include <as.h>
#include <sysinfo.h>
#include <io/stream.h>
#include <console.h>
#include <event.h>
#include <errno.h>
 
#define NAME "klog"
 
 
 
/* Pointer to klog area */
static wchar_t *klog;
static count_t klog_length;
 
static void interrupt_received(ipc_callid_t callid, ipc_call_t *call)
{
    async_serialize_start();
   
    count_t klog_start = (count_t) IPC_GET_ARG1(*call);
    count_t klog_len = (count_t) IPC_GET_ARG2(*call);
    count_t klog_stored = (count_t) IPC_GET_ARG3(*call);
    count_t i;
   
    for (i = klog_len - klog_stored; i < klog_len; i++)
        putchar(klog[(klog_start + i) % klog_length]);
   
    async_serialize_end();
}
 
int main(int argc, char *argv[])
{
    console_wait();
   
    count_t klog_pages = sysinfo_value("klog.pages");
    size_t klog_size = klog_pages * PAGE_SIZE;
    klog_length = klog_size / sizeof(wchar_t);
   
    klog = (wchar_t *) as_get_mappable_page(klog_pages);
    if (klog == NULL) {
        printf(NAME ": Error allocating memory area\n");
        return -1;
    }
 
    printf("got area at 0x%08lx, length %lx byes\n", klog, klog_size);
   
    int res = ipc_share_in_start_1_0(PHONE_NS, (void *) klog,
        klog_size, SERVICE_MEM_KLOG);
    if (res != EOK) {
        printf(NAME ": Error initializing memory area\n");
        return -1;
    }
   
    if (event_subscribe(EVENT_KLOG, 0) != EOK) {
        printf(NAME ": Error registering klog notifications\n");
        return -1;
    }
   
    async_set_interrupt_received(interrupt_received);
    klog_update();
    async_manager();
   
    return 0;
}
 
/** @}
 */
 

Rev 4347	Rev 4348
1	/*	1	/*
2	* Copyright (c) 2006 Ondrej Palkovsky	2	* Copyright (c) 2006 Ondrej Palkovsky
3	* All rights reserved.	3	* All rights reserved.
4	*	4	*
5	* Redistribution and use in source and binary forms, with or without	5	* Redistribution and use in source and binary forms, with or without
6	* modification, are permitted provided that the following conditions	6	* modification, are permitted provided that the following conditions
7	* are met:	7	* are met:
8	*	8	*
9	* - Redistributions of source code must retain the above copyright	9	* - Redistributions of source code must retain the above copyright
10	* notice, this list of conditions and the following disclaimer.	10	* notice, this list of conditions and the following disclaimer.
11	* - Redistributions in binary form must reproduce the above copyright	11	* - Redistributions in binary form must reproduce the above copyright
12	* notice, this list of conditions and the following disclaimer in the	12	* notice, this list of conditions and the following disclaimer in the
13	* documentation and/or other materials provided with the distribution.	13	* documentation and/or other materials provided with the distribution.
14	* - The name of the author may not be used to endorse or promote products	14	* - The name of the author may not be used to endorse or promote products
15	* derived from this software without specific prior written permission.	15	* derived from this software without specific prior written permission.
16	*	16	*
17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR	17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES	18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.	19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,	20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT	21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,	22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF	25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27	*/	27	*/
28		28
29	/** @addtogroup klog KLog	29	/** @addtogroup klog KLog
30	* @brief HelenOS KLog	30	* @brief HelenOS KLog
31	* @{	31	* @{
32	*/	32	*/
33	/**	33	/**
34	* @file	34	* @file
35	*/	35	*/
36		36
37	#include <stdio.h>	37	#include <stdio.h>
38	#include <ipc/ipc.h>	38	#include <ipc/ipc.h>
39	#include <async.h>	39	#include <async.h>
40	#include <ipc/services.h>	40	#include <ipc/services.h>
41	#include <as.h>	41	#include <as.h>
42	#include <sysinfo.h>	42	#include <sysinfo.h>
43	#include <io/stream.h>	43	#include <io/stream.h>
44	#include <console.h>	44	#include <console.h>
45	#include <event.h>	45	#include <event.h>
46	#include <errno.h>	46	#include <errno.h>
47		47
48	#define NAME "klog"	48	#define NAME "klog"
49		49
50	#define KLOG_SIZE PAGE_SIZE	-
51		-
52	/* Pointer to klog area */	50	/* Pointer to klog area */
53	static char *klog;	51	static wchar_t *klog;
-		52	static count_t klog_length;
54		53
55	static void interrupt_received(ipc_callid_t callid, ipc_call_t *call)	54	static void interrupt_received(ipc_callid_t callid, ipc_call_t *call)
56	{	55	{
57	async_serialize_start();	56	async_serialize_start();
58		57
59	size_t klog_start = (size_t) IPC_GET_ARG1(*call);	58	count_t klog_start = (count_t) IPC_GET_ARG1(*call);
60	size_t klog_len = (size_t) IPC_GET_ARG2(*call);	59	count_t klog_len = (count_t) IPC_GET_ARG2(*call);
61	size_t klog_stored = (size_t) IPC_GET_ARG3(*call);	60	count_t klog_stored = (count_t) IPC_GET_ARG3(*call);
62	size_t i;	61	count_t i;
-		62
63	for (i = klog_len - klog_stored; i < klog_len; i++)	63	for (i = klog_len - klog_stored; i < klog_len; i++)
64	putchar(klog[(klog_start + i) % KLOG_SIZE]);	64	putchar(klog[(klog_start + i) % klog_length]);
65		65
66	async_serialize_end();	66	async_serialize_end();
67	}	67	}
68		68
69	int main(int argc, char *argv[])	69	int main(int argc, char *argv[])
70	{	70	{
71	console_wait();	71	console_wait();
72		72
-		73	count_t klog_pages = sysinfo_value("klog.pages");
-		74	size_t klog_size = klog_pages * PAGE_SIZE;
-		75	klog_length = klog_size / sizeof(wchar_t);
-		76
73	klog = (char *) as_get_mappable_page(KLOG_SIZE);	77	klog = (wchar_t *) as_get_mappable_page(klog_pages);
74	if (klog == NULL) {	78	if (klog == NULL) {
75	printf(NAME ": Error allocating memory area\n");	79	printf(NAME ": Error allocating memory area\n");
76	return -1;	80	return -1;
77	}	81	}
78		82
79	printf("got area at 0x%08lx, length %lx byes\n", klog, KLOG_SIZE);	83	printf("got area at 0x%08lx, length %lx byes\n", klog, klog_size);
80		84
81	int res = ipc_share_in_start_1_0(PHONE_NS, (void *) klog, KLOG_SIZE,	85	int res = ipc_share_in_start_1_0(PHONE_NS, (void *) klog,
82	SERVICE_MEM_KLOG);	86	klog_size, SERVICE_MEM_KLOG);
83	if (res != EOK) {	87	if (res != EOK) {
84	printf(NAME ": Error initializing memory area\n");	88	printf(NAME ": Error initializing memory area\n");
85	return -1;	89	return -1;
86	}	90	}
87		91
88	if (event_subscribe(EVENT_KLOG, 0) != EOK) {	92	if (event_subscribe(EVENT_KLOG, 0) != EOK) {
89	printf(NAME ": Error registering klog notifications\n");	93	printf(NAME ": Error registering klog notifications\n");
90	return -1;	94	return -1;
91	}	95	}
92		96
93	async_set_interrupt_received(interrupt_received);	97	async_set_interrupt_received(interrupt_received);
94	klog_update();	98	klog_update();
95	async_manager();	99	async_manager();
96		100
97	return 0;	101	return 0;
98	}	102	}
99		103
100	/** @}	104	/** @}
101	*/	105	*/
102		106

Subversion Repositories HelenOS

(root)/branches/dynload/uspace/app/klog/klog.c – Rev 4347 → 4348