utils/native/trace_processor/TraceProcessorMain.cpp

/*
 * Copyright (C) 2017 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.
 */
#include "VtsTraceProcessor.h"
// Usage examples:
//   To cleanup trace, <binary> --cleanup <trace file>
//   To profile trace, <binary> --profiling <trace file>
//   To dedup traces, <binary> --dedup <trace file directory>
//   To select traces based on coverage data,
//       <binary> --trace_selection <covreage file directory>
// Cleanup trace is used to generate trace for replay test, it will replace the
// old trace file with a new one of the same format (VtsProfilingRecord).
//
// Profile trace will calculate the latency of each API recorded in the trace
// and print them out with the format api:latency. e.g.
//   open:150231474
//   write:842604
//   coreInitialized:30466722
//
// Dedup trace is used to remove all duplicate traces under the given directory.
// A trace is considered duplicated if there exists a trace that contains the
// same API call sequence as the given trace and the input parameters for each
// API call are all the same.
//
// Select trace is used to select a subset of trace files from a give trace set
// based on their corresponding coverage data, the goal is to pick up the
// minimal num of trace files that to maximize the total coverage.
int main(int argc, char* argv[]) {
  if (argc == 3) {
    android::vts::VtsTraceProcessor trace_processor;
    if (!strcmp(argv[1], "--cleanup")) {
      trace_processor.CleanupTraceForReplay(argv[2]);
    } else if (!strcmp(argv[1], "--profiling")) {
      trace_processor.ProcessTraceForLatencyProfiling(argv[2]);
    } else if (!strcmp(argv[1], "--dedup")) {
      trace_processor.DedupTraces(argv[2]);
    } else if (!strcmp(argv[1], "--trace_selection")) {
      trace_processor.SelectTraces(argv[2]);
    } else {
      fprintf(stderr, "Invalid argument.\n");
      return -1;
    }
  } else {
    fprintf(stderr, "Invalid argument.\n");
    return -1;
  }
  return 0;
}