text: #!/usr/bin/env python3
  # Copyright (C) 2021 The Android Open Source Project
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #      http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  """ Given a trace file, gives the self-time of userspace slices broken
  down by process, thread and thread state.
  """
  
  import argparse
  import sys
  
  from perfetto.slice_breakdown import compute_breakdown, compute_breakdown_for_startup
  from perfetto.trace_processor import TraceProcessor
  
  
  def compute_breakdown_wrapper(args):
    tp = TraceProcessor(
        file_path=args.file, bin_path=args.shell_path, verbose=args.verbose)
    if args.startup_bounds:
      breakdown = compute_breakdown_for_startup(tp, args.startup_package,
                                                args.process_name)
    else:
      breakdown = compute_breakdown(tp, args.start_ts, args.end_ts,
                                    args.process_name)
    tp.close()
  
    return breakdown
  
  
  def main():
    parser = argparse.ArgumentParser()
    parser.add_argument('--file', required=True)
    parser.add_argument('--shell-path', default=None)
    parser.add_argument('--start-ts', default=None)
    parser.add_argument('--end-ts', default=None)
    parser.add_argument('--startup-bounds', action='store_true', default=False)
    parser.add_argument('--startup-package', default=None)
    parser.add_argument('--process-name', default=None)
    parser.add_argument('--verbose', action='store_true', default=False)
    parser.add_argument('--out-csv', required=True)
    args = parser.parse_args()
  
    if (args.start_ts or args.end_ts) and args.startup_bounds:
      print("Cannot specify --start-ts or --end-ts and --startup-bounds")
      return 1
  
    if args.startup_package and not args.startup_bounds:
      print("Must specify --startup-bounds if --startup-package is specified")
      return 1
  
    breakdown = compute_breakdown_wrapper(args)
  
    if args.out_csv:
      diff_csv = breakdown.to_csv(index=False)
      if args.out_csv == '-':
        sys.stdout.write(diff_csv)
      else:
        with open(args.out_csv, 'w') as out:
          out.write(diff_csv)
  
    return 0
  
  
  if __name__ == '__main__':
    exit(main())
  