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#include <rtthread.h>
#include <rtdevice.h>
#include <log_trace.h>
#define PIPE_SZ 2048
#define PIPE_NAME "lgpipe"
static rt_uint8_t pipebuf[PIPE_SZ];
static struct rt_pipe_device pipedev;
static rt_uint8_t outbuf[1024];
void memlog_flush(void)
{
rt_size_t remainsz, readsz;
rt_device_t console;
console = rt_console_get_device();
if (!console)
return;
rt_device_control((rt_device_t)&pipedev, PIPE_CTRL_GET_SPACE, &remainsz);
if (remainsz == 0)
{
rt_kprintf("logtrace pipe "PIPE_NAME" is full, some log may lost\n");
}
readsz = rt_device_read((rt_device_t)&pipedev, 0, outbuf, sizeof(outbuf));
if (readsz)
rt_device_write(console, 0, outbuf, readsz);
}
void memlog_init(void)
{
rt_err_t res;
/* make sure the RT_PIPE_FLAG_BLOCK_RD is not set. The Idle should not be
* blocked. RT_PIPE_FLAG_FORCE_WR will let the pipe discard some old data
* when pipe is full. */
res = rt_pipe_init(&pipedev, PIPE_NAME, RT_PIPE_FLAG_FORCE_WR,
pipebuf, sizeof(pipebuf));
if (res != RT_EOK)
{
rt_kprintf("init pipe device failed: %d\n", res);
return;
}
log_trace_set_device(PIPE_NAME);
rt_thread_idle_sethook(memlog_flush);
}
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