81     trace_data = self._collect_trace_data();
83       self._trace_data = self._preprocess_trace_data(trace_data);
175     trace_data = []
205           trace_data.append(chunk)
262     return trace_data
264   def _preprocess_trace_data(self, trace_data):  argument
272     trace_data = ''.join(trace_data)
276       trace_data, thread_names = extract_thread_list(trace_data)
278     if trace_data:
279       trace_data = strip_and_decompress_trace(trace_data)
281     if not trace_data:
287       trace_data = fix_thread_names(trace_data, thread_names)
290       trace_data = fix_circular_traces(trace_data)
292     return trace_data
438 def extract_thread_list(trace_data):  argument
448                    trace_data, 1)
450     trace_data = parts[0]
458   return (trace_data, threads)
461 def strip_and_decompress_trace(trace_data):  argument
470   if trace_data.startswith('\r\n'):
471     trace_data = trace_data.replace('\r\n', '\n')
472   elif trace_data.startswith('\r\r\n'):
474     trace_data = trace_data.replace('\r\r\n', '\n')
477   trace_data = trace_data[1:]
479   if not trace_data.startswith(TRACE_TEXT_HEADER):
481     trace_data = zlib.decompress(trace_data)
484   trace_data = trace_data.replace('\r', '')
487   while trace_data and trace_data[0] == '\n':
488     trace_data = trace_data[1:]
490   return trace_data
493 def fix_thread_names(trace_data, thread_names):  argument
514   trace_data = re.sub(r'^\s*(\S+)-(\d+)', repl, trace_data,
516   return trace_data