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#include "base/test/perf_log.h"
6
7#include "base/files/file_util.h"
8#include "base/logging.h"
9
10namespace base {
11
12static FILE* perf_log_file = NULL;
13
14bool InitPerfLog(const FilePath& log_file) {
15  if (perf_log_file) {
16    // trying to initialize twice
17    NOTREACHED();
18    return false;
19  }
20
21  perf_log_file = OpenFile(log_file, "w");
22  return perf_log_file != NULL;
23}
24
25void FinalizePerfLog() {
26  if (!perf_log_file) {
27    // trying to cleanup without initializing
28    NOTREACHED();
29    return;
30  }
31  base::CloseFile(perf_log_file);
32}
33
34void LogPerfResult(const char* test_name, double value, const char* units) {
35  if (!perf_log_file) {
36    NOTREACHED();
37    return;
38  }
39
40  fprintf(perf_log_file, "%s\t%g\t%s\n", test_name, value, units);
41  printf("%s\t%g\t%s\n", test_name, value, units);
42  fflush(stdout);
43}
44
45}  // namespace base
46