| Index: net/base/file_stream_context_win.cc
|
| diff --git a/net/base/file_stream_context_win.cc b/net/base/file_stream_context_win.cc
|
| deleted file mode 100644
|
| index a41a74c431e672539494390947e8444574f835d7..0000000000000000000000000000000000000000
|
| --- a/net/base/file_stream_context_win.cc
|
| +++ /dev/null
|
| @@ -1,250 +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 "net/base/file_stream_context.h"
|
| -
|
| -#include <windows.h>
|
| -
|
| -#include "base/files/file_path.h"
|
| -#include "base/logging.h"
|
| -#include "base/message_loop/message_loop.h"
|
| -#include "base/message_loop/message_loop_proxy.h"
|
| -#include "base/metrics/histogram.h"
|
| -#include "base/task_runner.h"
|
| -#include "base/threading/worker_pool.h"
|
| -#include "net/base/io_buffer.h"
|
| -#include "net/base/net_errors.h"
|
| -
|
| -namespace net {
|
| -
|
| -namespace {
|
| -
|
| -void SetOffset(OVERLAPPED* overlapped, const LARGE_INTEGER& offset) {
|
| - overlapped->Offset = offset.LowPart;
|
| - overlapped->OffsetHigh = offset.HighPart;
|
| -}
|
| -
|
| -void IncrementOffset(OVERLAPPED* overlapped, DWORD count) {
|
| - LARGE_INTEGER offset;
|
| - offset.LowPart = overlapped->Offset;
|
| - offset.HighPart = overlapped->OffsetHigh;
|
| - offset.QuadPart += static_cast<LONGLONG>(count);
|
| - SetOffset(overlapped, offset);
|
| -}
|
| -
|
| -} // namespace
|
| -
|
| -FileStream::Context::Context(const scoped_refptr<base::TaskRunner>& task_runner)
|
| - : io_context_(),
|
| - async_in_progress_(false),
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| - orphaned_(false),
|
| - task_runner_(task_runner),
|
| - async_read_initiated_(false),
|
| - async_read_completed_(false),
|
| - io_complete_for_read_received_(false),
|
| - result_(0) {
|
| - io_context_.handler = this;
|
| - memset(&io_context_.overlapped, 0, sizeof(io_context_.overlapped));
|
| -}
|
| -
|
| -FileStream::Context::Context(base::File file,
|
| - const scoped_refptr<base::TaskRunner>& task_runner)
|
| - : io_context_(),
|
| - file_(file.Pass()),
|
| - async_in_progress_(false),
|
| - orphaned_(false),
|
| - task_runner_(task_runner),
|
| - async_read_initiated_(false),
|
| - async_read_completed_(false),
|
| - io_complete_for_read_received_(false),
|
| - result_(0) {
|
| - io_context_.handler = this;
|
| - memset(&io_context_.overlapped, 0, sizeof(io_context_.overlapped));
|
| - if (file_.IsValid()) {
|
| - // TODO(hashimoto): Check that file_ is async.
|
| - OnFileOpened();
|
| - }
|
| -}
|
| -
|
| -FileStream::Context::~Context() {
|
| -}
|
| -
|
| -int FileStream::Context::Read(IOBuffer* buf,
|
| - int buf_len,
|
| - const CompletionCallback& callback) {
|
| - CHECK(!async_in_progress_);
|
| - DCHECK(!async_read_initiated_);
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| - DCHECK(!async_read_completed_);
|
| - DCHECK(!io_complete_for_read_received_);
|
| -
|
| - IOCompletionIsPending(callback, buf);
|
| -
|
| - async_read_initiated_ = true;
|
| - result_ = 0;
|
| -
|
| - task_runner_->PostTask(
|
| - FROM_HERE,
|
| - base::Bind(&FileStream::Context::ReadAsync, base::Unretained(this),
|
| - file_.GetPlatformFile(), make_scoped_refptr(buf), buf_len,
|
| - &io_context_.overlapped,
|
| - base::MessageLoop::current()->message_loop_proxy()));
|
| - return ERR_IO_PENDING;
|
| -}
|
| -
|
| -int FileStream::Context::Write(IOBuffer* buf,
|
| - int buf_len,
|
| - const CompletionCallback& callback) {
|
| - CHECK(!async_in_progress_);
|
| -
|
| - result_ = 0;
|
| -
|
| - DWORD bytes_written = 0;
|
| - if (!WriteFile(file_.GetPlatformFile(), buf->data(), buf_len,
|
| - &bytes_written, &io_context_.overlapped)) {
|
| - IOResult error = IOResult::FromOSError(GetLastError());
|
| - if (error.os_error == ERROR_IO_PENDING)
|
| - IOCompletionIsPending(callback, buf);
|
| - else
|
| - LOG(WARNING) << "WriteFile failed: " << error.os_error;
|
| - return static_cast<int>(error.result);
|
| - }
|
| -
|
| - IOCompletionIsPending(callback, buf);
|
| - return ERR_IO_PENDING;
|
| -}
|
| -
|
| -FileStream::Context::IOResult FileStream::Context::SeekFileImpl(
|
| - base::File::Whence whence,
|
| - int64 offset) {
|
| - LARGE_INTEGER result;
|
| - result.QuadPart = file_.Seek(whence, offset);
|
| - if (result.QuadPart >= 0) {
|
| - SetOffset(&io_context_.overlapped, result);
|
| - return IOResult(result.QuadPart, 0);
|
| - }
|
| -
|
| - return IOResult::FromOSError(GetLastError());
|
| -}
|
| -
|
| -void FileStream::Context::OnFileOpened() {
|
| - base::MessageLoopForIO::current()->RegisterIOHandler(file_.GetPlatformFile(),
|
| - this);
|
| -}
|
| -
|
| -void FileStream::Context::IOCompletionIsPending(
|
| - const CompletionCallback& callback,
|
| - IOBuffer* buf) {
|
| - DCHECK(callback_.is_null());
|
| - callback_ = callback;
|
| - in_flight_buf_ = buf; // Hold until the async operation ends.
|
| - async_in_progress_ = true;
|
| -}
|
| -
|
| -void FileStream::Context::OnIOCompleted(
|
| - base::MessageLoopForIO::IOContext* context,
|
| - DWORD bytes_read,
|
| - DWORD error) {
|
| - DCHECK_EQ(&io_context_, context);
|
| - DCHECK(!callback_.is_null());
|
| - DCHECK(async_in_progress_);
|
| -
|
| - if (!async_read_initiated_)
|
| - async_in_progress_ = false;
|
| -
|
| - if (orphaned_) {
|
| - io_complete_for_read_received_ = true;
|
| - // If we are called due to a pending read and the asynchronous read task
|
| - // has not completed we have to keep the context around until it completes.
|
| - if (async_read_initiated_ && !async_read_completed_)
|
| - return;
|
| - DeleteOrphanedContext();
|
| - return;
|
| - }
|
| -
|
| - if (error == ERROR_HANDLE_EOF) {
|
| - result_ = 0;
|
| - } else if (error) {
|
| - IOResult error_result = IOResult::FromOSError(error);
|
| - result_ = static_cast<int>(error_result.result);
|
| - } else {
|
| - if (result_)
|
| - DCHECK_EQ(result_, static_cast<int>(bytes_read));
|
| - result_ = bytes_read;
|
| - IncrementOffset(&io_context_.overlapped, bytes_read);
|
| - }
|
| -
|
| - if (async_read_initiated_)
|
| - io_complete_for_read_received_ = true;
|
| -
|
| - InvokeUserCallback();
|
| -}
|
| -
|
| -void FileStream::Context::InvokeUserCallback() {
|
| - // For an asynchonous Read operation don't invoke the user callback until
|
| - // we receive the IO completion notification and the asynchronous Read
|
| - // completion notification.
|
| - if (async_read_initiated_) {
|
| - if (!io_complete_for_read_received_ || !async_read_completed_)
|
| - return;
|
| - async_read_initiated_ = false;
|
| - io_complete_for_read_received_ = false;
|
| - async_read_completed_ = false;
|
| - async_in_progress_ = false;
|
| - }
|
| - CompletionCallback temp_callback = callback_;
|
| - callback_.Reset();
|
| - scoped_refptr<IOBuffer> temp_buf = in_flight_buf_;
|
| - in_flight_buf_ = NULL;
|
| - temp_callback.Run(result_);
|
| -}
|
| -
|
| -void FileStream::Context::DeleteOrphanedContext() {
|
| - async_in_progress_ = false;
|
| - callback_.Reset();
|
| - in_flight_buf_ = NULL;
|
| - CloseAndDelete();
|
| -}
|
| -
|
| -// static
|
| -void FileStream::Context::ReadAsync(
|
| - FileStream::Context* context,
|
| - HANDLE file,
|
| - scoped_refptr<net::IOBuffer> buf,
|
| - int buf_len,
|
| - OVERLAPPED* overlapped,
|
| - scoped_refptr<base::MessageLoopProxy> origin_thread_loop) {
|
| - DWORD bytes_read = 0;
|
| - BOOL ret = ::ReadFile(file, buf->data(), buf_len, &bytes_read, overlapped);
|
| - origin_thread_loop->PostTask(
|
| - FROM_HERE,
|
| - base::Bind(&FileStream::Context::ReadAsyncResult,
|
| - base::Unretained(context), ret, bytes_read, ::GetLastError()));
|
| -}
|
| -
|
| -void FileStream::Context::ReadAsyncResult(BOOL read_file_ret,
|
| - DWORD bytes_read,
|
| - DWORD os_error) {
|
| - // If the context is orphaned and we already received the io completion
|
| - // notification then we should delete the context and get out.
|
| - if (orphaned_ && io_complete_for_read_received_) {
|
| - DeleteOrphanedContext();
|
| - return;
|
| - }
|
| -
|
| - async_read_completed_ = true;
|
| - if (read_file_ret) {
|
| - result_ = bytes_read;
|
| - InvokeUserCallback();
|
| - return;
|
| - }
|
| -
|
| - IOResult error = IOResult::FromOSError(os_error);
|
| - if (error.os_error == ERROR_IO_PENDING) {
|
| - InvokeUserCallback();
|
| - } else {
|
| - OnIOCompleted(&io_context_, 0, error.os_error);
|
| - }
|
| -}
|
| -
|
| -} // namespace net
|
|
|