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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 "webkit/fileapi/syncable/local_file_change_tracker.h" | 5 #include "webkit/fileapi/syncable/local_file_change_tracker.h" |
6 | 6 |
7 #include <queue> | 7 #include <queue> |
8 | 8 |
9 #include "base/location.h" | 9 #include "base/location.h" |
10 #include "base/logging.h" | 10 #include "base/logging.h" |
11 #include "base/sequenced_task_runner.h" | 11 #include "base/sequenced_task_runner.h" |
12 #include "base/stl_util.h" | 12 #include "base/stl_util.h" |
13 #include "third_party/leveldatabase/src/include/leveldb/db.h" | 13 #include "third_party/leveldatabase/src/include/leveldb/db.h" |
14 #include "webkit/fileapi/file_system_context.h" | 14 #include "webkit/fileapi/file_system_context.h" |
15 #include "webkit/fileapi/file_system_file_util.h" | 15 #include "webkit/fileapi/file_system_file_util.h" |
16 #include "webkit/fileapi/file_system_operation_context.h" | 16 #include "webkit/fileapi/file_system_operation_context.h" |
17 #include "webkit/fileapi/file_system_util.h" | 17 #include "webkit/fileapi/file_system_util.h" |
18 #include "webkit/fileapi/syncable/local_file_sync_status.h" | 18 #include "webkit/fileapi/syncable/local_file_sync_status.h" |
19 #include "webkit/fileapi/syncable/syncable_file_system_util.h" | 19 #include "webkit/fileapi/syncable/syncable_file_system_util.h" |
20 | 20 |
21 namespace fileapi { | 21 namespace fileapi { |
22 | 22 |
23 namespace { | 23 namespace { |
24 const FilePath::CharType kDatabaseName[] = | 24 const base::FilePath::CharType kDatabaseName[] = |
25 FILE_PATH_LITERAL("LocalFileChangeTracker"); | 25 FILE_PATH_LITERAL("LocalFileChangeTracker"); |
26 const char kMark[] = "d"; | 26 const char kMark[] = "d"; |
27 } // namespace | 27 } // namespace |
28 | 28 |
29 // A database class that stores local file changes in a local database. This | 29 // A database class that stores local file changes in a local database. This |
30 // object must be destructed on file_task_runner. | 30 // object must be destructed on file_task_runner. |
31 class LocalFileChangeTracker::TrackerDB { | 31 class LocalFileChangeTracker::TrackerDB { |
32 public: | 32 public: |
33 explicit TrackerDB(const FilePath& base_path); | 33 explicit TrackerDB(const base::FilePath& base_path); |
34 | 34 |
35 SyncStatusCode MarkDirty(const std::string& url); | 35 SyncStatusCode MarkDirty(const std::string& url); |
36 SyncStatusCode ClearDirty(const std::string& url); | 36 SyncStatusCode ClearDirty(const std::string& url); |
37 SyncStatusCode GetDirtyEntries(std::queue<FileSystemURL>* dirty_files); | 37 SyncStatusCode GetDirtyEntries(std::queue<FileSystemURL>* dirty_files); |
38 | 38 |
39 private: | 39 private: |
40 enum RecoveryOption { | 40 enum RecoveryOption { |
41 REPAIR_ON_CORRUPTION, | 41 REPAIR_ON_CORRUPTION, |
42 FAIL_ON_CORRUPTION, | 42 FAIL_ON_CORRUPTION, |
43 }; | 43 }; |
44 | 44 |
45 SyncStatusCode Init(RecoveryOption recovery_option); | 45 SyncStatusCode Init(RecoveryOption recovery_option); |
46 SyncStatusCode Repair(const std::string& db_path); | 46 SyncStatusCode Repair(const std::string& db_path); |
47 void HandleError(const tracked_objects::Location& from_here, | 47 void HandleError(const tracked_objects::Location& from_here, |
48 const leveldb::Status& status); | 48 const leveldb::Status& status); |
49 | 49 |
50 const FilePath base_path_; | 50 const base::FilePath base_path_; |
51 scoped_ptr<leveldb::DB> db_; | 51 scoped_ptr<leveldb::DB> db_; |
52 SyncStatusCode db_status_; | 52 SyncStatusCode db_status_; |
53 | 53 |
54 DISALLOW_COPY_AND_ASSIGN(TrackerDB); | 54 DISALLOW_COPY_AND_ASSIGN(TrackerDB); |
55 }; | 55 }; |
56 | 56 |
57 LocalFileChangeTracker::ChangeInfo::ChangeInfo() : change_seq(-1) {} | 57 LocalFileChangeTracker::ChangeInfo::ChangeInfo() : change_seq(-1) {} |
58 LocalFileChangeTracker::ChangeInfo::~ChangeInfo() {} | 58 LocalFileChangeTracker::ChangeInfo::~ChangeInfo() {} |
59 | 59 |
60 // LocalFileChangeTracker ------------------------------------------------------ | 60 // LocalFileChangeTracker ------------------------------------------------------ |
61 | 61 |
62 LocalFileChangeTracker::LocalFileChangeTracker( | 62 LocalFileChangeTracker::LocalFileChangeTracker( |
63 const FilePath& base_path, | 63 const base::FilePath& base_path, |
64 base::SequencedTaskRunner* file_task_runner) | 64 base::SequencedTaskRunner* file_task_runner) |
65 : initialized_(false), | 65 : initialized_(false), |
66 file_task_runner_(file_task_runner), | 66 file_task_runner_(file_task_runner), |
67 tracker_db_(new TrackerDB(base_path)), | 67 tracker_db_(new TrackerDB(base_path)), |
68 current_change_seq_(0), | 68 current_change_seq_(0), |
69 num_changes_(0) { | 69 num_changes_(0) { |
70 } | 70 } |
71 | 71 |
72 LocalFileChangeTracker::~LocalFileChangeTracker() { | 72 LocalFileChangeTracker::~LocalFileChangeTracker() { |
73 DCHECK(file_task_runner_->RunsTasksOnCurrentThread()); | 73 DCHECK(file_task_runner_->RunsTasksOnCurrentThread()); |
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210 if (status != SYNC_STATUS_OK) | 210 if (status != SYNC_STATUS_OK) |
211 return status; | 211 return status; |
212 | 212 |
213 FileSystemFileUtil* file_util = | 213 FileSystemFileUtil* file_util = |
214 file_system_context->GetFileUtil(kFileSystemTypeSyncable); | 214 file_system_context->GetFileUtil(kFileSystemTypeSyncable); |
215 DCHECK(file_util); | 215 DCHECK(file_util); |
216 scoped_ptr<FileSystemOperationContext> context( | 216 scoped_ptr<FileSystemOperationContext> context( |
217 new FileSystemOperationContext(file_system_context)); | 217 new FileSystemOperationContext(file_system_context)); |
218 | 218 |
219 base::PlatformFileInfo file_info; | 219 base::PlatformFileInfo file_info; |
220 FilePath platform_path; | 220 base::FilePath platform_path; |
221 | 221 |
222 while (!dirty_files.empty()) { | 222 while (!dirty_files.empty()) { |
223 const FileSystemURL url = dirty_files.front(); | 223 const FileSystemURL url = dirty_files.front(); |
224 dirty_files.pop(); | 224 dirty_files.pop(); |
225 DCHECK_EQ(url.type(), kFileSystemTypeSyncable); | 225 DCHECK_EQ(url.type(), kFileSystemTypeSyncable); |
226 | 226 |
227 switch (file_util->GetFileInfo(context.get(), url, | 227 switch (file_util->GetFileInfo(context.get(), url, |
228 &file_info, &platform_path)) { | 228 &file_info, &platform_path)) { |
229 case base::PLATFORM_FILE_OK: { | 229 case base::PLATFORM_FILE_OK: { |
230 if (!file_info.is_directory) { | 230 if (!file_info.is_directory) { |
231 RecordChange(url, FileChange(FileChange::FILE_CHANGE_ADD_OR_UPDATE, | 231 RecordChange(url, FileChange(FileChange::FILE_CHANGE_ADD_OR_UPDATE, |
232 SYNC_FILE_TYPE_FILE)); | 232 SYNC_FILE_TYPE_FILE)); |
233 break; | 233 break; |
234 } | 234 } |
235 | 235 |
236 RecordChange(url, FileChange(FileChange::FILE_CHANGE_ADD_OR_UPDATE, | 236 RecordChange(url, FileChange(FileChange::FILE_CHANGE_ADD_OR_UPDATE, |
237 SYNC_FILE_TYPE_DIRECTORY)); | 237 SYNC_FILE_TYPE_DIRECTORY)); |
238 | 238 |
239 // Push files and directories in this directory into |dirty_files|. | 239 // Push files and directories in this directory into |dirty_files|. |
240 scoped_ptr<FileSystemFileUtil::AbstractFileEnumerator> enumerator( | 240 scoped_ptr<FileSystemFileUtil::AbstractFileEnumerator> enumerator( |
241 file_util->CreateFileEnumerator(context.get(), | 241 file_util->CreateFileEnumerator(context.get(), |
242 url, | 242 url, |
243 false /* recursive */)); | 243 false /* recursive */)); |
244 FilePath path_each; | 244 base::FilePath path_each; |
245 while (!(path_each = enumerator->Next()).empty()) { | 245 while (!(path_each = enumerator->Next()).empty()) { |
246 dirty_files.push(CreateSyncableFileSystemURL( | 246 dirty_files.push(CreateSyncableFileSystemURL( |
247 url.origin(), url.filesystem_id(), path_each)); | 247 url.origin(), url.filesystem_id(), path_each)); |
248 } | 248 } |
249 break; | 249 break; |
250 } | 250 } |
251 case base::PLATFORM_FILE_ERROR_NOT_FOUND: { | 251 case base::PLATFORM_FILE_ERROR_NOT_FOUND: { |
252 // File represented by |url| has already been deleted. Since we cannot | 252 // File represented by |url| has already been deleted. Since we cannot |
253 // figure out if this file was directory or not from the URL, file | 253 // figure out if this file was directory or not from the URL, file |
254 // type is treated as SYNC_FILE_TYPE_UNKNOWN. | 254 // type is treated as SYNC_FILE_TYPE_UNKNOWN. |
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281 UpdateNumChanges(); | 281 UpdateNumChanges(); |
282 return; | 282 return; |
283 } | 283 } |
284 info.change_seq = current_change_seq_++; | 284 info.change_seq = current_change_seq_++; |
285 change_seqs_[info.change_seq] = url; | 285 change_seqs_[info.change_seq] = url; |
286 UpdateNumChanges(); | 286 UpdateNumChanges(); |
287 } | 287 } |
288 | 288 |
289 // TrackerDB ------------------------------------------------------------------- | 289 // TrackerDB ------------------------------------------------------------------- |
290 | 290 |
291 LocalFileChangeTracker::TrackerDB::TrackerDB(const FilePath& base_path) | 291 LocalFileChangeTracker::TrackerDB::TrackerDB(const base::FilePath& base_path) |
292 : base_path_(base_path), | 292 : base_path_(base_path), |
293 db_status_(SYNC_STATUS_OK) {} | 293 db_status_(SYNC_STATUS_OK) {} |
294 | 294 |
295 SyncStatusCode LocalFileChangeTracker::TrackerDB::Init( | 295 SyncStatusCode LocalFileChangeTracker::TrackerDB::Init( |
296 RecoveryOption recovery_option) { | 296 RecoveryOption recovery_option) { |
297 if (db_.get() && db_status_ == SYNC_STATUS_OK) | 297 if (db_.get() && db_status_ == SYNC_STATUS_OK) |
298 return SYNC_STATUS_OK; | 298 return SYNC_STATUS_OK; |
299 | 299 |
300 std::string path = FilePathToString(base_path_.Append(kDatabaseName)); | 300 std::string path = FilePathToString(base_path_.Append(kDatabaseName)); |
301 leveldb::Options options; | 301 leveldb::Options options; |
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410 db_.reset(); | 410 db_.reset(); |
411 return db_status_; | 411 return db_status_; |
412 } | 412 } |
413 dirty_files->push(url); | 413 dirty_files->push(url); |
414 iter->Next(); | 414 iter->Next(); |
415 } | 415 } |
416 return SYNC_STATUS_OK; | 416 return SYNC_STATUS_OK; |
417 } | 417 } |
418 | 418 |
419 } // namespace fileapi | 419 } // namespace fileapi |
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