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 <io/stream.h>
#include <console.h>
#include <event.h>
#include <errno.h>
 
#define NAME "klog"
 
#define KLOG_SIZE   PAGE_SIZE
#define KLOG_LENGTH (KLOG_SIZE / sizeof(wchar_t))
 
/* Pointer to klog area */
static wchar_t *klog;
 
static void interrupt_received(ipc_callid_t callid, ipc_call_t *call)
{
    async_serialize_start();
   
    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]);
   
    async_serialize_end();
}
 
int main(int argc, char *argv[])
{
    console_wait();
   
    klog = (char *) 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 4173	Rev 4226
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	50	#define KLOG_SIZE PAGE_SIZE
-		51	#define KLOG_LENGTH (KLOG_SIZE / sizeof(wchar_t))
51		52
52	/* Pointer to klog area */	53	/* Pointer to klog area */
53	static char *klog;	54	static wchar_t *klog;
54		55
55	static void interrupt_received(ipc_callid_t callid, ipc_call_t *call)	56	static void interrupt_received(ipc_callid_t callid, ipc_call_t *call)
56	{	57	{
57	async_serialize_start();	58	async_serialize_start();
58		59
59	size_t klog_start = (size_t) IPC_GET_ARG1(*call);	60	size_t klog_start = (size_t) IPC_GET_ARG1(*call);
60	size_t klog_len = (size_t) IPC_GET_ARG2(*call);	61	size_t klog_len = (size_t) IPC_GET_ARG2(*call);
61	size_t klog_stored = (size_t) IPC_GET_ARG3(*call);	62	size_t klog_stored = (size_t) IPC_GET_ARG3(*call);
62	size_t i;	63	size_t i;
63	for (i = klog_len - klog_stored; i < klog_len; i++)	64	for (i = klog_len - klog_stored; i < klog_len; i++)
64	putchar(klog[(klog_start + i) % KLOG_SIZE]);	65	putchar(klog[(klog_start + i) % KLOG_LENGTH]);
65		66
66	async_serialize_end();	67	async_serialize_end();
67	}	68	}
68		69
69	int main(int argc, char *argv[])	70	int main(int argc, char *argv[])
70	{	71	{
71	console_wait();	72	console_wait();
72		73
73	klog = (char *) as_get_mappable_page(KLOG_SIZE);	74	klog = (char *) as_get_mappable_page(KLOG_SIZE);
74	if (klog == NULL) {	75	if (klog == NULL) {
75	printf(NAME ": Error allocating memory area\n");	76	printf(NAME ": Error allocating memory area\n");
76	return -1;	77	return -1;
77	}	78	}
78		79
79	int res = ipc_share_in_start_1_0(PHONE_NS, (void *) klog, KLOG_SIZE,	80	int res = ipc_share_in_start_1_0(PHONE_NS, (void *) klog, KLOG_SIZE,
80	SERVICE_MEM_KLOG);	81	SERVICE_MEM_KLOG);
81	if (res != EOK) {	82	if (res != EOK) {
82	printf(NAME ": Error initializing memory area\n");	83	printf(NAME ": Error initializing memory area\n");
83	return -1;	84	return -1;
84	}	85	}
85		86
86	if (event_subscribe(EVENT_KLOG, 0) != EOK) {	87	if (event_subscribe(EVENT_KLOG, 0) != EOK) {
87	printf(NAME ": Error registering klog notifications\n");	88	printf(NAME ": Error registering klog notifications\n");
88	return -1;	89	return -1;
89	}	90	}
90		91
91	async_set_interrupt_received(interrupt_received);	92	async_set_interrupt_received(interrupt_received);
92	klog_update();	93	klog_update();
93	async_manager();	94	async_manager();
94		95
95	return 0;	96	return 0;
96	}	97	}
97		98
98	/** @}	99	/** @}
99	*/	100	*/
100		101

Subversion Repositories HelenOS

(root)/trunk/uspace/app/klog/klog.c – Rev 4173 → 4226