diff --git a/components/utilities/logtrace/log_file.c b/components/utilities/logtrace/log_file.c index 2f4a28b63c..7a77008798 100644 --- a/components/utilities/logtrace/log_file.c +++ b/components/utilities/logtrace/log_file.c @@ -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); }