tools/deep_memory_profiler/subcommands/buckets.py

   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 logging
   6 import sys
   7
   8 from lib.subcommand import SubCommand
   9
  10
  11 LOGGER = logging.getLogger('dmprof')
  12
  13
  14 class BucketsCommand(SubCommand):
  15   def __init__(self):
  16     super(BucketsCommand, self).__init__('Usage: %prog buckets <first-dump>')
  17
  18   def do(self, sys_argv, out=sys.stdout):
  19     _, args = self._parse_args(sys_argv, 1)
  20     dump_path = args[1]
  21     (bucket_set, _) = SubCommand.load_basic_files(dump_path, True)
  22
  23     BucketsCommand._output(bucket_set, out)
  24     return 0
  25
  26   @staticmethod
  27   def _output(bucket_set, out):
  28     """Prints all buckets with resolving symbols.
  29
  30     Args:
  31         bucket_set: A BucketSet object.
  32         out: An IO object to output.
  33     """
  34     for bucket_id, bucket in sorted(bucket_set):
  35       out.write('%d: %s\n' % (bucket_id, bucket))