WebSVN – HelenOS – Diff – /trunk/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 <event.h>
#include <errno.h>
#include <io/klog.h>
 
#define NAME  "klog"
 
/* Pointer to klog area */
static wchar_t *klog;
static size_t klog_length;
 
static void interrupt_received(ipc_callid_t callid, ipc_call_t *call)
{
 
 
    size_t klog_start = (size_t) IPC_GET_ARG1(*call);
    size_t klog_len = (size_t) IPC_GET_ARG2(*call);
    size_t klog_stored = (size_t) IPC_GET_ARG3(*call);
    size_t i;
   
    for (i = klog_len - klog_stored; i < klog_len; i++)
        putchar(klog[(klog_start + i) % klog_length]);
 
 
}
 
int main(int argc, char *argv[])
{
    size_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_size);
    if (klog == NULL) {
        printf(NAME ": Error allocating memory area\n");
        return -1;
    }
   
    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 4495	Rev 4521
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 <event.h>	43	#include <event.h>
44	#include <errno.h>	44	#include <errno.h>
45	#include <io/klog.h>	45	#include <io/klog.h>
46		46
47	#define NAME "klog"	47	#define NAME "klog"
48		48
49	/* Pointer to klog area */	49	/* Pointer to klog area */
50	static wchar_t *klog;	50	static wchar_t *klog;
51	static size_t klog_length;	51	static size_t klog_length;
52		52
53	static void interrupt_received(ipc_callid_t callid, ipc_call_t *call)	53	static void interrupt_received(ipc_callid_t callid, ipc_call_t *call)
54	{	54	{
55	async_serialize_start();	-
56		-
57	size_t klog_start = (size_t) IPC_GET_ARG1(*call);	55	size_t klog_start = (size_t) IPC_GET_ARG1(*call);
58	size_t klog_len = (size_t) IPC_GET_ARG2(*call);	56	size_t klog_len = (size_t) IPC_GET_ARG2(*call);
59	size_t klog_stored = (size_t) IPC_GET_ARG3(*call);	57	size_t klog_stored = (size_t) IPC_GET_ARG3(*call);
60	size_t i;	58	size_t i;
61		59
62	for (i = klog_len - klog_stored; i < klog_len; i++)	60	for (i = klog_len - klog_stored; i < klog_len; i++)
63	putchar(klog[(klog_start + i) % klog_length]);	61	putchar(klog[(klog_start + i) % klog_length]);
64		-
65	async_serialize_end();	-
66	}	62	}
67		63
68	int main(int argc, char *argv[])	64	int main(int argc, char *argv[])
69	{	65	{
70	size_t klog_pages = sysinfo_value("klog.pages");	66	size_t klog_pages = sysinfo_value("klog.pages");
71	size_t klog_size = klog_pages * PAGE_SIZE;	67	size_t klog_size = klog_pages * PAGE_SIZE;
72	klog_length = klog_size / sizeof(wchar_t);	68	klog_length = klog_size / sizeof(wchar_t);
73		69
74	klog = (wchar_t *) as_get_mappable_page(klog_size);	70	klog = (wchar_t *) as_get_mappable_page(klog_size);
75	if (klog == NULL) {	71	if (klog == NULL) {
76	printf(NAME ": Error allocating memory area\n");	72	printf(NAME ": Error allocating memory area\n");
77	return -1;	73	return -1;
78	}	74	}
79		75
80	int res = ipc_share_in_start_1_0(PHONE_NS, (void *) klog,	76	int res = ipc_share_in_start_1_0(PHONE_NS, (void *) klog,
81	klog_size, SERVICE_MEM_KLOG);	77	klog_size, SERVICE_MEM_KLOG);
82	if (res != EOK) {	78	if (res != EOK) {
83	printf(NAME ": Error initializing memory area\n");	79	printf(NAME ": Error initializing memory area\n");
84	return -1;	80	return -1;
85	}	81	}
86		82
87	if (event_subscribe(EVENT_KLOG, 0) != EOK) {	83	if (event_subscribe(EVENT_KLOG, 0) != EOK) {
88	printf(NAME ": Error registering klog notifications\n");	84	printf(NAME ": Error registering klog notifications\n");
89	return -1;	85	return -1;
90	}	86	}
91		87
92	async_set_interrupt_received(interrupt_received);	88	async_set_interrupt_received(interrupt_received);
93	klog_update();	89	klog_update();
94	async_manager();	90	async_manager();
95		91
96	return 0;	92	return 0;
97	}	93	}
98		94
99	/** @}	95	/** @}
100	*/	96	*/
101		97

Subversion Repositories HelenOS

(root)/trunk/uspace/app/klog/klog.c – Rev 4495 → 4521