| OLD | NEW |
|---|
| (Empty) |
| 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 | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef WEBKIT_FILEAPI_FILE_SYSTEM_FILE_STREAM_READER_H_ | |
| 6 #define WEBKIT_FILEAPI_FILE_SYSTEM_FILE_STREAM_READER_H_ | |
| 7 | |
| 8 #include "base/bind.h" | |
| 9 #include "base/memory/ref_counted.h" | |
| 10 #include "base/platform_file.h" | |
| 11 #include "base/time.h" | |
| 12 #include "webkit/blob/file_stream_reader.h" | |
| 13 #include "webkit/blob/shareable_file_reference.h" | |
| 14 #include "webkit/fileapi/file_system_url.h" | |
| 15 #include "webkit/storage/webkit_storage_export.h" | |
| 16 | |
| 17 namespace base { | |
| 18 class FilePath; | |
| 19 class SequencedTaskRunner; | |
| 20 } | |
| 21 | |
| 22 namespace webkit_blob { | |
| 23 class LocalFileStreamReader; | |
| 24 } | |
| 25 | |
| 26 namespace fileapi { | |
| 27 | |
| 28 class FileSystemContext; | |
| 29 | |
| 30 // TODO(kinaba,satorux): This generic implementation would work for any | |
| 31 // filesystems but remote filesystem should implement its own reader | |
| 32 // rather than relying on FileSystemOperation::GetSnapshotFile() which | |
| 33 // may force downloading the entire contents for remote files. | |
| 34 class WEBKIT_STORAGE_EXPORT_PRIVATE FileSystemFileStreamReader | |
| 35 : public webkit_blob::FileStreamReader { | |
| 36 public: | |
| 37 // Creates a new FileReader for a filesystem URL |url| form |initial_offset|. | |
| 38 // |expected_modification_time| specifies the expected last modification if | |
| 39 // the value is non-null, the reader will check the underlying file's actual | |
| 40 // modification time to see if the file has been modified, and if it does any | |
| 41 // succeeding read operations should fail with ERR_UPLOAD_FILE_CHANGED error. | |
| 42 FileSystemFileStreamReader(FileSystemContext* file_system_context, | |
| 43 const FileSystemURL& url, | |
| 44 int64 initial_offset, | |
| 45 const base::Time& expected_modification_time); | |
| 46 virtual ~FileSystemFileStreamReader(); | |
| 47 | |
| 48 // FileStreamReader overrides. | |
| 49 virtual int Read(net::IOBuffer* buf, int buf_len, | |
| 50 const net::CompletionCallback& callback) OVERRIDE; | |
| 51 virtual int64 GetLength( | |
| 52 const net::Int64CompletionCallback& callback) OVERRIDE; | |
| 53 | |
| 54 private: | |
| 55 int CreateSnapshot(const base::Closure& callback, | |
| 56 const net::CompletionCallback& error_callback); | |
| 57 void DidCreateSnapshot( | |
| 58 const base::Closure& callback, | |
| 59 const net::CompletionCallback& error_callback, | |
| 60 base::PlatformFileError file_error, | |
| 61 const base::PlatformFileInfo& file_info, | |
| 62 const base::FilePath& platform_path, | |
| 63 const scoped_refptr<webkit_blob::ShareableFileReference>& file_ref); | |
| 64 | |
| 65 scoped_refptr<FileSystemContext> file_system_context_; | |
| 66 FileSystemURL url_; | |
| 67 const int64 initial_offset_; | |
| 68 const base::Time expected_modification_time_; | |
| 69 scoped_ptr<webkit_blob::LocalFileStreamReader> local_file_reader_; | |
| 70 scoped_refptr<webkit_blob::ShareableFileReference> snapshot_ref_; | |
| 71 bool has_pending_create_snapshot_; | |
| 72 base::WeakPtrFactory<FileSystemFileStreamReader> weak_factory_; | |
| 73 | |
| 74 DISALLOW_COPY_AND_ASSIGN(FileSystemFileStreamReader); | |
| 75 }; | |
| 76 | |
| 77 } // namespace fileapi | |
| 78 | |
| 79 #endif // WEBKIT_FILEAPI_FILE_SYSTEM_FILE_STREAM_READER_H_ | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 14895013:
Move webkit/fileapi/file_system_mount_point_provider.h to webkit/browser/fileapi (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src