OLD | NEW |
1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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 "components/visitedlink/browser/visitedlink_master.h" | 5 #include "components/visitedlink/browser/visitedlink_master.h" |
6 | 6 |
7 #if defined(OS_WIN) | 7 #if defined(OS_WIN) |
8 #include <windows.h> | 8 #include <windows.h> |
9 #include <io.h> | 9 #include <io.h> |
10 #include <shlobj.h> | 10 #include <shlobj.h> |
(...skipping 13 matching lines...) Expand all Loading... |
24 #include "base/strings/string_util.h" | 24 #include "base/strings/string_util.h" |
25 #include "base/threading/thread_restrictions.h" | 25 #include "base/threading/thread_restrictions.h" |
26 #include "components/visitedlink/browser/visitedlink_delegate.h" | 26 #include "components/visitedlink/browser/visitedlink_delegate.h" |
27 #include "components/visitedlink/browser/visitedlink_event_listener.h" | 27 #include "components/visitedlink/browser/visitedlink_event_listener.h" |
28 #include "content/public/browser/browser_context.h" | 28 #include "content/public/browser/browser_context.h" |
29 #include "content/public/browser/browser_thread.h" | 29 #include "content/public/browser/browser_thread.h" |
30 #include "url/gurl.h" | 30 #include "url/gurl.h" |
31 | 31 |
32 using content::BrowserThread; | 32 using content::BrowserThread; |
33 using file_util::ScopedFILE; | 33 using file_util::ScopedFILE; |
34 using file_util::OpenFile; | |
35 using file_util::TruncateFile; | |
36 | 34 |
37 namespace visitedlink { | 35 namespace visitedlink { |
38 | 36 |
39 const int32 VisitedLinkMaster::kFileHeaderSignatureOffset = 0; | 37 const int32 VisitedLinkMaster::kFileHeaderSignatureOffset = 0; |
40 const int32 VisitedLinkMaster::kFileHeaderVersionOffset = 4; | 38 const int32 VisitedLinkMaster::kFileHeaderVersionOffset = 4; |
41 const int32 VisitedLinkMaster::kFileHeaderLengthOffset = 8; | 39 const int32 VisitedLinkMaster::kFileHeaderLengthOffset = 8; |
42 const int32 VisitedLinkMaster::kFileHeaderUsedOffset = 12; | 40 const int32 VisitedLinkMaster::kFileHeaderUsedOffset = 12; |
43 const int32 VisitedLinkMaster::kFileHeaderSaltOffset = 16; | 41 const int32 VisitedLinkMaster::kFileHeaderSaltOffset = 16; |
44 | 42 |
45 const int32 VisitedLinkMaster::kFileCurrentVersion = 3; | 43 const int32 VisitedLinkMaster::kFileCurrentVersion = 3; |
(...skipping 15 matching lines...) Expand all Loading... |
61 // It is not necessary to generate a cryptographically strong random string, | 59 // It is not necessary to generate a cryptographically strong random string, |
62 // only that it be reasonably different for different users. | 60 // only that it be reasonably different for different users. |
63 void GenerateSalt(uint8 salt[LINK_SALT_LENGTH]) { | 61 void GenerateSalt(uint8 salt[LINK_SALT_LENGTH]) { |
64 DCHECK_EQ(LINK_SALT_LENGTH, 8) << "This code assumes the length of the salt"; | 62 DCHECK_EQ(LINK_SALT_LENGTH, 8) << "This code assumes the length of the salt"; |
65 uint64 randval = base::RandUint64(); | 63 uint64 randval = base::RandUint64(); |
66 memcpy(salt, &randval, 8); | 64 memcpy(salt, &randval, 8); |
67 } | 65 } |
68 | 66 |
69 // Opens file on a background thread to not block UI thread. | 67 // Opens file on a background thread to not block UI thread. |
70 void AsyncOpen(FILE** file, const base::FilePath& filename) { | 68 void AsyncOpen(FILE** file, const base::FilePath& filename) { |
71 *file = OpenFile(filename, "wb+"); | 69 *file = base::OpenFile(filename, "wb+"); |
72 DLOG_IF(ERROR, !(*file)) << "Failed to open file " << filename.value(); | 70 DLOG_IF(ERROR, !(*file)) << "Failed to open file " << filename.value(); |
73 } | 71 } |
74 | 72 |
75 // Returns true if the write was complete. | 73 // Returns true if the write was complete. |
76 static bool WriteToFile(FILE* file, | 74 static bool WriteToFile(FILE* file, |
77 off_t offset, | 75 off_t offset, |
78 const void* data, | 76 const void* data, |
79 size_t data_len) { | 77 size_t data_len) { |
80 if (fseek(file, offset, SEEK_SET) != 0) | 78 if (fseek(file, offset, SEEK_SET) != 0) |
81 return false; // Don't write to an invalid part of the file. | 79 return false; // Don't write to an invalid part of the file. |
(...skipping 16 matching lines...) Expand all Loading... |
98 void AsyncWrite(FILE** file, int32 offset, const std::string& data) { | 96 void AsyncWrite(FILE** file, int32 offset, const std::string& data) { |
99 if (*file) | 97 if (*file) |
100 WriteToFile(*file, offset, data.data(), data.size()); | 98 WriteToFile(*file, offset, data.data(), data.size()); |
101 } | 99 } |
102 | 100 |
103 // Truncates the file to the current position asynchronously on a background | 101 // Truncates the file to the current position asynchronously on a background |
104 // thread. Double pointer to FILE is used because file may still not be opened | 102 // thread. Double pointer to FILE is used because file may still not be opened |
105 // by the time of scheduling the task for execution. | 103 // by the time of scheduling the task for execution. |
106 void AsyncTruncate(FILE** file) { | 104 void AsyncTruncate(FILE** file) { |
107 if (*file) | 105 if (*file) |
108 base::IgnoreResult(TruncateFile(*file)); | 106 base::IgnoreResult(base::TruncateFile(*file)); |
109 } | 107 } |
110 | 108 |
111 // Closes the file on a background thread and releases memory used for storage | 109 // Closes the file on a background thread and releases memory used for storage |
112 // of FILE* value. Double pointer to FILE is used because file may still not | 110 // of FILE* value. Double pointer to FILE is used because file may still not |
113 // be opened by the time of scheduling the task for execution. | 111 // be opened by the time of scheduling the task for execution. |
114 void AsyncClose(FILE** file) { | 112 void AsyncClose(FILE** file) { |
115 if (*file) | 113 if (*file) |
116 base::IgnoreResult(fclose(*file)); | 114 base::IgnoreResult(fclose(*file)); |
117 free(file); | 115 free(file); |
118 } | 116 } |
(...skipping 416 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
535 // The hash table may have shrunk, so make sure this is the end. | 533 // The hash table may have shrunk, so make sure this is the end. |
536 PostIOTask(FROM_HERE, base::Bind(&AsyncTruncate, file_)); | 534 PostIOTask(FROM_HERE, base::Bind(&AsyncTruncate, file_)); |
537 } | 535 } |
538 | 536 |
539 bool VisitedLinkMaster::InitFromFile() { | 537 bool VisitedLinkMaster::InitFromFile() { |
540 DCHECK(file_ == NULL); | 538 DCHECK(file_ == NULL); |
541 DCHECK(persist_to_disk_); | 539 DCHECK(persist_to_disk_); |
542 | 540 |
543 base::FilePath filename; | 541 base::FilePath filename; |
544 GetDatabaseFileName(&filename); | 542 GetDatabaseFileName(&filename); |
545 ScopedFILE file_closer(OpenFile(filename, "rb+")); | 543 ScopedFILE file_closer(base::OpenFile(filename, "rb+")); |
546 if (!file_closer.get()) | 544 if (!file_closer.get()) |
547 return false; | 545 return false; |
548 | 546 |
549 int32 num_entries, used_count; | 547 int32 num_entries, used_count; |
550 if (!ReadFileHeader(file_closer.get(), &num_entries, &used_count, salt_)) | 548 if (!ReadFileHeader(file_closer.get(), &num_entries, &used_count, salt_)) |
551 return false; // Header isn't valid. | 549 return false; // Header isn't valid. |
552 | 550 |
553 // Allocate and read the table. | 551 // Allocate and read the table. |
554 if (!CreateURLTable(num_entries, false)) | 552 if (!CreateURLTable(num_entries, false)) |
555 return false; | 553 return false; |
(...skipping 424 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
980 BrowserThread::UI, FROM_HERE, | 978 BrowserThread::UI, FROM_HERE, |
981 base::Bind(&TableBuilder::OnCompleteMainThread, this)); | 979 base::Bind(&TableBuilder::OnCompleteMainThread, this)); |
982 } | 980 } |
983 | 981 |
984 void VisitedLinkMaster::TableBuilder::OnCompleteMainThread() { | 982 void VisitedLinkMaster::TableBuilder::OnCompleteMainThread() { |
985 if (master_) | 983 if (master_) |
986 master_->OnTableRebuildComplete(success_, fingerprints_); | 984 master_->OnTableRebuildComplete(success_, fingerprints_); |
987 } | 985 } |
988 | 986 |
989 } // namespace visitedlink | 987 } // namespace visitedlink |
OLD | NEW |