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Unified Diff: content/renderer/pepper/quota_file_io.h

Issue 33053002: Pepper: Move FileIO host from renderer to browser. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Rebased Created 7 years, 1 month ago
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Index: content/renderer/pepper/quota_file_io.h
diff --git a/content/renderer/pepper/quota_file_io.h b/content/renderer/pepper/quota_file_io.h
deleted file mode 100644
index e1ec4c104e7d601d336b2ae88f8781d94ec5fd96..0000000000000000000000000000000000000000
--- a/content/renderer/pepper/quota_file_io.h
+++ /dev/null
@@ -1,127 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef CONTENT_RENDERER_PEPPER_QUOTA_FILE_IO_H_
-#define CONTENT_RENDERER_PEPPER_QUOTA_FILE_IO_H_
-
-#include <deque>
-
-#include "base/callback_forward.h"
-#include "base/files/file_util_proxy.h"
-#include "base/memory/ref_counted.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/memory/weak_ptr.h"
-#include "base/platform_file.h"
-#include "content/common/content_export.h"
-#include "ppapi/c/pp_file_info.h"
-#include "url/gurl.h"
-#include "webkit/common/quota/quota_types.h"
-
-namespace base {
-class MessageLoopProxy;
-}
-
-namespace content {
-
-// This class is created per PPB_FileIO_Impl instance and provides
-// write operations for quota-managed files (i.e. files of
-// PP_FILESYSTEMTYPE_LOCAL{PERSISTENT,TEMPORARY}).
-class QuotaFileIO {
- public:
- // For quota handlings for FileIO API. This will be owned by QuotaFileIO.
- class Delegate {
- public:
- virtual ~Delegate() {}
- typedef base::Callback<void (int64)> AvailableSpaceCallback;
- virtual void QueryAvailableSpace(
- const GURL& origin,
- quota::StorageType type,
- const AvailableSpaceCallback& callback) = 0;
- virtual void WillUpdateFile(const GURL& file_path) = 0;
- virtual void DidUpdateFile(const GURL& file_path, int64_t delta) = 0;
- // Returns a MessageLoopProxy instance associated with the message loop of
- // the file thread.
- virtual scoped_refptr<base::MessageLoopProxy>
- GetFileThreadMessageLoopProxy() = 0;
- };
-
- typedef base::FileUtilProxy::WriteCallback WriteCallback;
- typedef base::FileUtilProxy::StatusCallback StatusCallback;
-
- CONTENT_EXPORT QuotaFileIO(Delegate* delegate,
- base::PlatformFile file,
- const GURL& path_url,
- PP_FileSystemType type);
- CONTENT_EXPORT ~QuotaFileIO();
-
- // Performs write or setlength operation with quota checks.
- // Returns true when the operation is successfully dispatched.
- // |bytes_to_write| must be geater than zero.
- // |callback| will be dispatched when the operation completes.
- // Otherwise it returns false and |callback| will not be dispatched.
- // |callback| will not be dispatched either when this instance is
- // destroyed before the operation completes.
- // SetLength cannot be called while there're any in-flight
- // operations. For Write it is guaranteed that |callback| are
- // always dispatched in the same order as Write being called.
- CONTENT_EXPORT bool Write(int64_t offset,
- const char* buffer,
- int32_t bytes_to_write,
- const WriteCallback& callback);
- CONTENT_EXPORT bool SetLength(int64_t length,
- const StatusCallback& callback);
-
- Delegate* delegate() const { return delegate_.get(); }
-
- private:
- class PendingOperationBase;
- class WriteOperation;
- class SetLengthOperation;
-
- bool CheckIfExceedsQuota(int64_t new_file_size) const;
- void WillUpdate();
- void DidWrite(WriteOperation* op, int64_t written_offset_end);
- void DidSetLength(base::PlatformFileError error, int64_t new_file_size);
-
- bool RegisterOperationForQuotaChecks(PendingOperationBase* op);
- void DidQueryInfoForQuota(base::PlatformFileError error_code,
- const base::PlatformFileInfo& file_info);
- void DidQueryAvailableSpace(int64_t avail_space);
- void DidQueryForQuotaCheck();
-
- scoped_ptr<Delegate> delegate_;
-
- // The file information associated to this instance.
- base::PlatformFile file_;
- GURL file_url_;
- quota::StorageType storage_type_;
-
- // Pending operations that are waiting quota checks and pending
- // callbacks that are to be fired after the operation;
- // we use two separate queues for them so that we can safely dequeue the
- // pending callbacks while enqueueing new operations. (This could
- // happen when callbacks are dispatched synchronously due to error etc.)
- std::deque<PendingOperationBase*> pending_operations_;
- std::deque<PendingOperationBase*> pending_callbacks_;
-
- // Valid only while there're pending quota checks.
- int64_t cached_file_size_;
- int64_t cached_available_space_;
-
- // Quota-related queries and errors occurred during in-flight quota checks.
- int outstanding_quota_queries_;
- int outstanding_errors_;
-
- // For parallel writes bookkeeping.
- int64_t max_written_offset_;
- int inflight_operations_;
-
- base::WeakPtrFactory<QuotaFileIO> weak_factory_;
-
- DISALLOW_COPY_AND_ASSIGN(QuotaFileIO);
-};
-
-} // namespace content
-
-#endif // CONTENT_RENDERER_PEPPER_QUOTA_FILE_IO_H_
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