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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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