def _channel_attributes_from_node(channel_node, bt):
attr = model.ChannelAttributes()
attr_node = channel_node.find('attributes')
mode_node = attr_node.find('overwrite_mode')
attr.mode = LttngCliControl._CHANNEL_MODE_NAME_TO_ENUM[mode_node.text]
attr.subbuf_size = int(attr_node.find('subbuffer_size').text)
attr.subbuf_count = int(attr_node.find('subbuffer_count').text)
switch_timer_interval = attr_node.find('switch_timer_interval').text
attr.switch_timer_interval = utils.usec_to_sec(switch_timer_interval)
read_timer_interval = attr_node.find('read_timer_interval').text
attr.read_timer_interval = utils.usec_to_sec(read_timer_interval)
ot = attr_node.find('output_type').text
output_type = LttngCliControl._CHANNEL_OUTPUT_TYPE_NAME_TO_ENUM[ot]
attr.output_type = output_type
attr.tracefile_size = int(attr_node.find('tracefile_size').text)
attr.tracefile_count = int(attr_node.find('tracefile_count').text)
buffer_scheme = LttngCliControl._CHANNEL_BUFFER_SCHEME_NAME_TO_ENUM[bt]
attr.buffer_scheme = buffer_scheme
return attr
def _session_summary_from_node(session_node):
name = session_node.find('name').text
output_path = session_node.find('path').text
enabled = session_node.find('enabled').text
enabled = _bool_from_node_text(enabled)
snapshot_mode = session_node.find('snapshot_mode').text
is_snapshot_mode = _bool_from_node_text(snapshot_mode)
live_timer_interval = session_node.find('live_timer_interval').text
live_timer_interval = utils.usec_to_sec(live_timer_interval)
summary = model.SessionSummary(name, output_path, enabled,
is_snapshot_mode, live_timer_interval)
return summary
def channel_attributes(self):
attr = model.ChannelAttributes()
attr.mode = self.mode
attr.subbuf_size = self._subbuf_size_edit.text()
attr.subbuf_count = self._subbuf_count_spinbox.value()
attr.output_type = self.output_type
attr.buffer_scheme = self.buffer_scheme
if self._tracefile_ucount_msize_radio.isChecked():
attr.tracefile_size = self._tracefile_size_edit.text()
elif self._tracefile_mcount_msize_radio.isChecked():
attr.tracefile_count = self._tracefile_count_edit.value()
attr.tracefile_size = self._tracefile_size_edit.text()
if not self._read_timer_stopped_check.isChecked():
sec = utils.usec_to_sec(int(self._read_timer_period_edit.text()))
attr.read_timer_interval = sec
if not self._switch_timer_stopped_check.isChecked():
sec = utils.usec_to_sec(int(self._switch_timer_period_edit.text()))
attr.switch_timer_interval = sec
return attr
def create_default(cls, domain):
attr = cls()
attr.mode = ChannelMode.DISCARD
attr.subbuf_count = 4
if domain == Domain.KERNEL:
attr.subbuf_size = 256 * 1024
attr.read_timer_interval = utils.usec_to_sec(200000)
attr.output_type = ChannelOutputType.SPLICE
attr.buffer_scheme = ChannelBufferScheme.GLOBAL
elif domain == Domain.USER:
attr.subbuf_size = 128 * 1024
attr.output_type = ChannelOutputType.MMAP
attr.buffer_scheme = ChannelBufferScheme.PER_UID
return attr
