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), |
- 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_); |
- 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 |