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Unified Diff: webkit/browser/blob/local_file_stream_reader.cc

Issue 442383002: Move storage-related files from webkit/ to new top-level directory storage/ (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: . Created 6 years, 4 months ago
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Index: webkit/browser/blob/local_file_stream_reader.cc
diff --git a/webkit/browser/blob/local_file_stream_reader.cc b/webkit/browser/blob/local_file_stream_reader.cc
deleted file mode 100644
index 2ccc3fbdf338efc6d88037df8c693326ec526788..0000000000000000000000000000000000000000
--- a/webkit/browser/blob/local_file_stream_reader.cc
+++ /dev/null
@@ -1,169 +0,0 @@
-// Copyright (c) 2012 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.
-
-#include "webkit/browser/blob/local_file_stream_reader.h"
-
-#include "base/file_util.h"
-#include "base/files/file_util_proxy.h"
-#include "base/location.h"
-#include "base/logging.h"
-#include "base/task_runner.h"
-#include "net/base/file_stream.h"
-#include "net/base/io_buffer.h"
-#include "net/base/net_errors.h"
-
-namespace webkit_blob {
-
-namespace {
-
-const int kOpenFlagsForRead = base::File::FLAG_OPEN |
- base::File::FLAG_READ |
- base::File::FLAG_ASYNC;
-
-} // namespace
-
-FileStreamReader* FileStreamReader::CreateForLocalFile(
- base::TaskRunner* task_runner,
- const base::FilePath& file_path,
- int64 initial_offset,
- const base::Time& expected_modification_time) {
- return new LocalFileStreamReader(task_runner, file_path, initial_offset,
- expected_modification_time);
-}
-
-LocalFileStreamReader::~LocalFileStreamReader() {
-}
-
-int LocalFileStreamReader::Read(net::IOBuffer* buf, int buf_len,
- const net::CompletionCallback& callback) {
- DCHECK(!has_pending_open_);
- if (stream_impl_)
- return stream_impl_->Read(buf, buf_len, callback);
- return Open(base::Bind(&LocalFileStreamReader::DidOpenForRead,
- weak_factory_.GetWeakPtr(),
- make_scoped_refptr(buf), buf_len, callback));
-}
-
-int64 LocalFileStreamReader::GetLength(
- const net::Int64CompletionCallback& callback) {
- const bool posted = base::FileUtilProxy::GetFileInfo(
- task_runner_.get(),
- file_path_,
- base::Bind(&LocalFileStreamReader::DidGetFileInfoForGetLength,
- weak_factory_.GetWeakPtr(),
- callback));
- DCHECK(posted);
- return net::ERR_IO_PENDING;
-}
-
-LocalFileStreamReader::LocalFileStreamReader(
- base::TaskRunner* task_runner,
- const base::FilePath& file_path,
- int64 initial_offset,
- const base::Time& expected_modification_time)
- : task_runner_(task_runner),
- file_path_(file_path),
- initial_offset_(initial_offset),
- expected_modification_time_(expected_modification_time),
- has_pending_open_(false),
- weak_factory_(this) {}
-
-int LocalFileStreamReader::Open(const net::CompletionCallback& callback) {
- DCHECK(!has_pending_open_);
- DCHECK(!stream_impl_.get());
- has_pending_open_ = true;
-
- // Call GetLength first to make it perform last-modified-time verification,
- // and then call DidVerifyForOpen for do the rest.
- return GetLength(base::Bind(&LocalFileStreamReader::DidVerifyForOpen,
- weak_factory_.GetWeakPtr(), callback));
-}
-
-void LocalFileStreamReader::DidVerifyForOpen(
- const net::CompletionCallback& callback,
- int64 get_length_result) {
- if (get_length_result < 0) {
- callback.Run(static_cast<int>(get_length_result));
- return;
- }
-
- stream_impl_.reset(new net::FileStream(task_runner_));
- const int result = stream_impl_->Open(
- file_path_, kOpenFlagsForRead,
- base::Bind(&LocalFileStreamReader::DidOpenFileStream,
- weak_factory_.GetWeakPtr(),
- callback));
- if (result != net::ERR_IO_PENDING)
- callback.Run(result);
-}
-
-void LocalFileStreamReader::DidOpenFileStream(
- const net::CompletionCallback& callback,
- int result) {
- if (result != net::OK) {
- callback.Run(result);
- return;
- }
- result = stream_impl_->Seek(
- base::File::FROM_BEGIN, initial_offset_,
- base::Bind(&LocalFileStreamReader::DidSeekFileStream,
- weak_factory_.GetWeakPtr(),
- callback));
- if (result != net::ERR_IO_PENDING) {
- callback.Run(result);
- }
-}
-
-void LocalFileStreamReader::DidSeekFileStream(
- const net::CompletionCallback& callback,
- int64 seek_result) {
- if (seek_result < 0) {
- callback.Run(static_cast<int>(seek_result));
- return;
- }
- if (seek_result != initial_offset_) {
- callback.Run(net::ERR_REQUEST_RANGE_NOT_SATISFIABLE);
- return;
- }
- callback.Run(net::OK);
-}
-
-void LocalFileStreamReader::DidOpenForRead(
- net::IOBuffer* buf,
- int buf_len,
- const net::CompletionCallback& callback,
- int open_result) {
- DCHECK(has_pending_open_);
- has_pending_open_ = false;
- if (open_result != net::OK) {
- stream_impl_.reset();
- callback.Run(open_result);
- return;
- }
- DCHECK(stream_impl_.get());
- const int read_result = stream_impl_->Read(buf, buf_len, callback);
- if (read_result != net::ERR_IO_PENDING)
- callback.Run(read_result);
-}
-
-void LocalFileStreamReader::DidGetFileInfoForGetLength(
- const net::Int64CompletionCallback& callback,
- base::File::Error error,
- const base::File::Info& file_info) {
- if (file_info.is_directory) {
- callback.Run(net::ERR_FILE_NOT_FOUND);
- return;
- }
- if (error != base::File::FILE_OK) {
- callback.Run(net::FileErrorToNetError(error));
- return;
- }
- if (!VerifySnapshotTime(expected_modification_time_, file_info)) {
- callback.Run(net::ERR_UPLOAD_FILE_CHANGED);
- return;
- }
- callback.Run(file_info.size);
-}
-
-} // namespace webkit_blob
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