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Issue 8368009: Replace most LOG statements with DLOG statements in base. (Closed) Base URL: svn://chrome-svn/chrome/trunk/src/
Patch Set: '' Created 9 years, 2 months ago
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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include "base/test/test_file_util.h" 5 #include "base/test/test_file_util.h"
6 6
7 #include <sys/mman.h> 7 #include <sys/mman.h>
8 #include <errno.h> 8 #include <errno.h>
9 #include "base/logging.h" 9 #include "base/logging.h"
10 #include "base/file_util.h" 10 #include "base/file_util.h"
11 11
12 namespace file_util { 12 namespace file_util {
13 13
14 bool EvictFileFromSystemCache(const FilePath& file) { 14 bool EvictFileFromSystemCache(const FilePath& file) {
15 // There aren't any really direct ways to purge a file from the UBC. From 15 // There aren't any really direct ways to purge a file from the UBC. From
16 // talking with Amit Singh, the safest is to mmap the file with MAP_FILE (the 16 // talking with Amit Singh, the safest is to mmap the file with MAP_FILE (the
17 // default) + MAP_SHARED, then do an msync to invalidate the memory. The next 17 // default) + MAP_SHARED, then do an msync to invalidate the memory. The next
18 // open should then have to load the file from disk. 18 // open should then have to load the file from disk.
19 19
20 int64 length; 20 int64 length;
21 if (!file_util::GetFileSize(file, &length)) { 21 if (!file_util::GetFileSize(file, &length)) {
22 LOG(ERROR) << "failed to get size of " << file.value(); 22 DLOG(ERROR) << "failed to get size of " << file.value();
23 return false; 23 return false;
24 } 24 }
25 25
26 // When a file is empty, we do not need to evict it from cache. 26 // When a file is empty, we do not need to evict it from cache.
27 // In fact, an attempt to map it to memory will result in error. 27 // In fact, an attempt to map it to memory will result in error.
28 if (length == 0) { 28 if (length == 0) {
29 LOG(WARNING) << "file size is zero, will not attempt to map to memory"; 29 DLOG(WARNING) << "file size is zero, will not attempt to map to memory";
30 return true; 30 return true;
31 } 31 }
32 32
33 file_util::MemoryMappedFile mapped_file; 33 file_util::MemoryMappedFile mapped_file;
34 if (!mapped_file.Initialize(file)) { 34 if (!mapped_file.Initialize(file)) {
35 LOG(WARNING) << "failed to memory map " << file.value(); 35 DLOG(WARNING) << "failed to memory map " << file.value();
36 return false; 36 return false;
37 } 37 }
38 38
39 if (msync(const_cast<uint8*>(mapped_file.data()), mapped_file.length(), 39 if (msync(const_cast<uint8*>(mapped_file.data()), mapped_file.length(),
40 MS_INVALIDATE) != 0) { 40 MS_INVALIDATE) != 0) {
41 LOG(WARNING) << "failed to invalidate memory map of " << file.value() 41 DLOG(WARNING) << "failed to invalidate memory map of " << file.value()
42 << ", errno: " << errno; 42 << ", errno: " << errno;
43 return false; 43 return false;
44 } 44 }
45 45
46 return true; 46 return true;
47 } 47 }
48 48
49 } // namespace file_util 49 } // namespace file_util
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