rtt-f030/components/utilities/logtrace/memlog.c

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/*
* File : memlog.c
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2013, RT-Thread Development Team
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Change Logs:
* Date Author Notes
* 2013-06-26 Grissiom the first version
*/
#include <rtthread.h>
#include <rtdevice.h>
#include <log_trace.h>
#define PIPE_SZ 2048
#define PIPE_NAME "memlog"
static rt_pipe_t *_log_pipe = NULL;
static rt_uint8_t outbuf[1024];
void memlog_flush(void)
{
rt_size_t readsz;
rt_device_t console;
console = rt_console_get_device();
if (!console) return;
readsz = rt_device_read((rt_device_t)&(_log_pipe->parent), 0, outbuf, sizeof(outbuf));
if (readsz)
rt_device_write(console, 0, outbuf, readsz);
}
int memlog_init(void)
{
_log_pipe = rt_pipe_create(PIPE_NAME, PIPE_SZ);
if (_log_pipe == RT_NULL)
{
rt_kprintf("init pipe device failed.\n");
return -1;
}
log_trace_set_device(PIPE_NAME);
rt_thread_idle_sethook(memlog_flush);
return 0;
}
INIT_APP_EXPORT(memlog_init);