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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_BROWSER_FILEAPI_SANDBOX_FILE_STREAM_WRITER_H_ | |
6 #define WEBKIT_BROWSER_FILEAPI_SANDBOX_FILE_STREAM_WRITER_H_ | |
7 | |
8 #include "base/files/file.h" | |
9 #include "base/files/file_path.h" | |
10 #include "base/memory/scoped_ptr.h" | |
11 #include "url/gurl.h" | |
12 #include "webkit/browser/fileapi/file_stream_writer.h" | |
13 #include "webkit/browser/fileapi/file_system_url.h" | |
14 #include "webkit/browser/fileapi/task_runner_bound_observer_list.h" | |
15 #include "webkit/browser/webkit_storage_browser_export.h" | |
16 #include "webkit/common/blob/shareable_file_reference.h" | |
17 #include "webkit/common/fileapi/file_system_types.h" | |
18 #include "webkit/common/quota/quota_types.h" | |
19 | |
20 namespace fileapi { | |
21 | |
22 class FileSystemContext; | |
23 class FileSystemQuotaUtil; | |
24 class FileStreamWriter; | |
25 | |
26 class WEBKIT_STORAGE_BROWSER_EXPORT_PRIVATE SandboxFileStreamWriter | |
27 : public NON_EXPORTED_BASE(FileStreamWriter) { | |
28 public: | |
29 SandboxFileStreamWriter(FileSystemContext* file_system_context, | |
30 const FileSystemURL& url, | |
31 int64 initial_offset, | |
32 const UpdateObserverList& observers); | |
33 virtual ~SandboxFileStreamWriter(); | |
34 | |
35 // FileStreamWriter overrides. | |
36 virtual int Write(net::IOBuffer* buf, int buf_len, | |
37 const net::CompletionCallback& callback) OVERRIDE; | |
38 virtual int Cancel(const net::CompletionCallback& callback) OVERRIDE; | |
39 virtual int Flush(const net::CompletionCallback& callback) OVERRIDE; | |
40 | |
41 // Used only by tests. | |
42 void set_default_quota(int64 quota) { | |
43 default_quota_ = quota; | |
44 } | |
45 | |
46 private: | |
47 // Performs quota calculation and calls local_file_writer_->Write(). | |
48 int WriteInternal(net::IOBuffer* buf, int buf_len, | |
49 const net::CompletionCallback& callback); | |
50 | |
51 // Callbacks that are chained for the first write. This eventually calls | |
52 // WriteInternal. | |
53 void DidCreateSnapshotFile( | |
54 const net::CompletionCallback& callback, | |
55 base::File::Error file_error, | |
56 const base::File::Info& file_info, | |
57 const base::FilePath& platform_path, | |
58 const scoped_refptr<webkit_blob::ShareableFileReference>& file_ref); | |
59 void DidGetUsageAndQuota(const net::CompletionCallback& callback, | |
60 quota::QuotaStatusCode status, | |
61 int64 usage, int64 quota); | |
62 void DidInitializeForWrite(net::IOBuffer* buf, int buf_len, | |
63 const net::CompletionCallback& callback, | |
64 int init_status); | |
65 | |
66 void DidWrite(const net::CompletionCallback& callback, int write_response); | |
67 | |
68 // Stops the in-flight operation, calls |cancel_callback_| and returns true | |
69 // if there's a pending cancel request. | |
70 bool CancelIfRequested(); | |
71 | |
72 scoped_refptr<FileSystemContext> file_system_context_; | |
73 FileSystemURL url_; | |
74 int64 initial_offset_; | |
75 scoped_ptr<FileStreamWriter> local_file_writer_; | |
76 net::CompletionCallback cancel_callback_; | |
77 | |
78 UpdateObserverList observers_; | |
79 | |
80 base::FilePath file_path_; | |
81 int64 file_size_; | |
82 int64 total_bytes_written_; | |
83 int64 allowed_bytes_to_write_; | |
84 bool has_pending_operation_; | |
85 | |
86 int64 default_quota_; | |
87 | |
88 base::WeakPtrFactory<SandboxFileStreamWriter> weak_factory_; | |
89 | |
90 DISALLOW_COPY_AND_ASSIGN(SandboxFileStreamWriter); | |
91 }; | |
92 | |
93 } // namespace fileapi | |
94 | |
95 #endif // WEBKIT_BROWSER_FILEAPI_SANDBOX_FILE_STREAM_WRITER_H_ | |
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