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Side by Side Diff: trunk/src/tools/android/adb_profile_chrome/profiler.py

Issue 330713002: Revert 276779 "Move adb_profile_chrome under tools/android/" (Closed) Base URL: svn://svn.chromium.org/chrome/
Patch Set: Created 6 years, 6 months ago
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1 # Copyright 2014 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 os
6
7 from adb_profile_chrome import trace_packager
8 from adb_profile_chrome import ui
9
10 from pylib import constants
11
12
13 def _StartTracing(controllers, interval):
14 for controller in controllers:
15 controller.StartTracing(interval)
16
17
18 def _StopTracing(controllers):
19 for controller in controllers:
20 controller.StopTracing()
21
22
23 def _PullTraces(controllers, output, compress, write_json):
24 ui.PrintMessage('Downloading...', eol='')
25 trace_files = [controller.PullTrace() for controller in controllers]
26 result = trace_packager.PackageTraces(trace_files,
27 output=output,
28 compress=compress,
29 write_json=write_json)
30 ui.PrintMessage('done')
31 ui.PrintMessage('Trace written to file://%s' % os.path.abspath(result))
32 return result
33
34
35 def GetSupportedBrowsers():
36 """Returns the package names of all supported browsers."""
37 # Add aliases for backwards compatibility.
38 supported_browsers = {
39 'stable': constants.PACKAGE_INFO['chrome_stable'],
40 'beta': constants.PACKAGE_INFO['chrome_beta'],
41 'dev': constants.PACKAGE_INFO['chrome_dev'],
42 'build': constants.PACKAGE_INFO['chrome'],
43 }
44 supported_browsers.update(constants.PACKAGE_INFO)
45 unsupported_browsers = ['content_browsertests', 'gtest', 'legacy_browser']
46 for browser in unsupported_browsers:
47 del supported_browsers[browser]
48 return supported_browsers
49
50
51 def CaptureProfile(controllers, interval, output=None, compress=False,
52 write_json=False):
53 """Records a profiling trace saves the result to a file.
54
55 Args:
56 controllers: List of tracing controllers.
57 interval: Time interval to capture in seconds. An interval of None (or 0)
58 continues tracing until stopped by the user.
59 output: Output file name or None to use an automatically generated name.
60 compress: If True, the result will be compressed either with gzip or zip
61 depending on the number of captured subtraces.
62 write_json: If True, prefer JSON output over HTML.
63
64 Returns:
65 Path to saved profile.
66 """
67 trace_type = ' + '.join(map(str, controllers))
68 try:
69 _StartTracing(controllers, interval)
70 if interval:
71 ui.PrintMessage('Capturing %d-second %s. Press Enter to stop early...' % \
72 (interval, trace_type), eol='')
73 ui.WaitForEnter(interval)
74 else:
75 ui.PrintMessage('Capturing %s. Press Enter to stop...' % \
76 trace_type, eol='')
77 raw_input()
78 finally:
79 _StopTracing(controllers)
80 if interval:
81 ui.PrintMessage('done')
82
83 return _PullTraces(controllers, output, compress, write_json)
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