1 # Copyright 2013 The Chromium Authors. All rights reserved. 2 # Use of this source code is governed by a BSD-style license that can be 3 # found in the LICENSE file. 4 5 import tempfile 6 7 from telemetry.core.platform import profiler 8 9 10 class NetLogProfiler(profiler.Profiler): 11 12 _NET_LOG_ARG = '--log-net-log=' 13 14 @classmethod 15 def name(cls): 16 return 'netlog' 17 18 @classmethod 19 def is_supported(cls, browser_type): 20 return not browser_type.startswith('cros') 21 22 @classmethod 23 def CustomizeBrowserOptions(cls, browser_type, options): 24 if browser_type.startswith('android'): 25 dump_file = '/sdcard/net-internals-profile.json' 26 else: 27 dump_file = tempfile.mkstemp()[1] 28 options.AppendExtraBrowserArgs([cls._NET_LOG_ARG + dump_file]) 29 30 def CollectProfile(self): 31 # Find output filename from browser argument. 32 for i in self._browser_backend.browser_options.extra_browser_args: 33 if i.startswith(self._NET_LOG_ARG): 34 output_file = i[len(self._NET_LOG_ARG):] 35 assert output_file 36 # On Android pull the output file to the host. 37 if self._platform_backend.GetOSName() == 'android': 38 host_output_file = '%s.json' % self._output_path 39 self._browser_backend.adb.device().old_interface.Adb().Pull( 40 output_file, host_output_file) 41 # Clean the device 42 self._browser_backend.adb.device().RunShellCommand('rm %s' % output_file) 43 output_file = host_output_file 44 print 'Net-internals log saved as %s' % output_file 45 print 'To view, open in chrome://net-internals' 46 return [output_file] 47
