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Merge pull request #787 from emlslxl/master 

[log trace] add log_file flush function
This commit is contained in:
Bernard Xiong 2017-08-06 12:04:05 +08:00 committed by GitHub
parent 25d415a28c 3007b34ad3
commit 5ea03f5e12
1 changed files with 24 additions and 4 deletions
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28
components/utilities/logtrace/log_file.c
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@ -93,6 +93,25 @@ static rt_size_t fdevice_write(rt_device_t dev, rt_off_t pos, const void *buffer
return write(fdev->fd, buffer, size);
}
static rt_err_t fdevice_control(rt_device_t dev, rt_uint8_t cmd, void *arg)
{
struct file_device *fdev = (struct file_device *)dev;
if (fdev->fd < 0)
return 0;
switch (cmd)
{
case LOG_TRACE_CTRL_FLUSH:
if (fsync(fdev->fd) != 0)
return RT_ERROR;
break;
default:
break;
}
return RT_EOK;
}
void log_trace_file_init(const char *filename)
{
rt_device_t device;
@ -104,10 +123,11 @@ void log_trace_file_init(const char *filename)
_file_device.parent.type = RT_Device_Class_Char;
_file_device.parent.init = RT_NULL;
_file_device.parent.open = fdevice_open;
_file_device.parent.close = fdevice_close;
_file_device.parent.write = fdevice_write;
_file_device.parent.init = RT_NULL;
_file_device.parent.open = fdevice_open;
_file_device.parent.close = fdevice_close;
_file_device.parent.write = fdevice_write;
_file_device.parent.control = fdevice_control;
rt_device_register(&_file_device.parent, "logfile", O_RDWR);
}