1 // Copyright (c) 2006-2008 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/perftimer.h"
6
7 #include <stdio.h>
8 #include <string>
9
10 #include "base/basictypes.h"
11 #include "base/file_path.h"
12 #include "base/file_util.h"
13 #include "base/logging.h"
14
15 static FILE* perf_log_file = NULL;
16
InitPerfLog(const FilePath & log_file)17 bool InitPerfLog(const FilePath& log_file) {
18 if (perf_log_file) {
19 // trying to initialize twice
20 NOTREACHED();
21 return false;
22 }
23
24 perf_log_file = file_util::OpenFile(log_file, "w");
25 return perf_log_file != NULL;
26 }
27
FinalizePerfLog()28 void FinalizePerfLog() {
29 if (!perf_log_file) {
30 // trying to cleanup without initializing
31 NOTREACHED();
32 return;
33 }
34 file_util::CloseFile(perf_log_file);
35 }
36
LogPerfResult(const char * test_name,double value,const char * units)37 void LogPerfResult(const char* test_name, double value, const char* units) {
38 if (!perf_log_file) {
39 NOTREACHED();
40 return;
41 }
42
43 fprintf(perf_log_file, "%s\t%g\t%s\n", test_name, value, units);
44 printf("%s\t%g\t%s\n", test_name, value, units);
45 }
46