0,0 → 1,96 |
/* |
* 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; |
} |
|
/** @} |
*/ |