mirror of
https://github.com/klzgrad/naiveproxy.git
synced 2024-12-01 01:36:09 +03:00
113 lines
3.2 KiB
C++
113 lines
3.2 KiB
C++
// 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 <errno.h>
|
|
#include <utility>
|
|
|
|
#include "base/bind.h"
|
|
#include "base/bind_helpers.h"
|
|
#include "base/callback.h"
|
|
#include "base/files/file_path.h"
|
|
#include "base/location.h"
|
|
#include "base/logging.h"
|
|
#include "base/posix/eintr_wrapper.h"
|
|
#include "base/task_runner.h"
|
|
#include "base/task_runner_util.h"
|
|
#include "net/base/io_buffer.h"
|
|
#include "net/base/net_errors.h"
|
|
|
|
namespace net {
|
|
|
|
FileStream::Context::Context(const scoped_refptr<base::TaskRunner>& task_runner)
|
|
: async_in_progress_(false),
|
|
orphaned_(false),
|
|
task_runner_(task_runner) {
|
|
}
|
|
|
|
FileStream::Context::Context(base::File file,
|
|
const scoped_refptr<base::TaskRunner>& task_runner)
|
|
: file_(std::move(file)),
|
|
async_in_progress_(false),
|
|
last_operation_(NONE),
|
|
orphaned_(false),
|
|
task_runner_(task_runner) {}
|
|
|
|
FileStream::Context::~Context() = default;
|
|
|
|
int FileStream::Context::Read(IOBuffer* in_buf,
|
|
int buf_len,
|
|
const CompletionCallback& callback) {
|
|
CheckNoAsyncInProgress();
|
|
|
|
scoped_refptr<IOBuffer> buf = in_buf;
|
|
const bool posted = base::PostTaskAndReplyWithResult(
|
|
task_runner_.get(),
|
|
FROM_HERE,
|
|
base::Bind(&Context::ReadFileImpl, base::Unretained(this), buf, buf_len),
|
|
base::Bind(&Context::OnAsyncCompleted,
|
|
base::Unretained(this),
|
|
IntToInt64(callback)));
|
|
DCHECK(posted);
|
|
|
|
async_in_progress_ = true;
|
|
last_operation_ = READ;
|
|
return ERR_IO_PENDING;
|
|
}
|
|
|
|
int FileStream::Context::Write(IOBuffer* in_buf,
|
|
int buf_len,
|
|
const CompletionCallback& callback) {
|
|
CheckNoAsyncInProgress();
|
|
|
|
scoped_refptr<IOBuffer> buf = in_buf;
|
|
const bool posted = base::PostTaskAndReplyWithResult(
|
|
task_runner_.get(),
|
|
FROM_HERE,
|
|
base::Bind(&Context::WriteFileImpl, base::Unretained(this), buf, buf_len),
|
|
base::Bind(&Context::OnAsyncCompleted,
|
|
base::Unretained(this),
|
|
IntToInt64(callback)));
|
|
DCHECK(posted);
|
|
|
|
async_in_progress_ = true;
|
|
last_operation_ = WRITE;
|
|
return ERR_IO_PENDING;
|
|
}
|
|
|
|
FileStream::Context::IOResult FileStream::Context::SeekFileImpl(
|
|
int64_t offset) {
|
|
int64_t res = file_.Seek(base::File::FROM_BEGIN, offset);
|
|
if (res == -1)
|
|
return IOResult::FromOSError(errno);
|
|
|
|
return IOResult(res, 0);
|
|
}
|
|
|
|
void FileStream::Context::OnFileOpened() {
|
|
}
|
|
|
|
FileStream::Context::IOResult FileStream::Context::ReadFileImpl(
|
|
scoped_refptr<IOBuffer> buf,
|
|
int buf_len) {
|
|
int res = file_.ReadAtCurrentPosNoBestEffort(buf->data(), buf_len);
|
|
if (res == -1)
|
|
return IOResult::FromOSError(errno);
|
|
|
|
return IOResult(res, 0);
|
|
}
|
|
|
|
FileStream::Context::IOResult FileStream::Context::WriteFileImpl(
|
|
scoped_refptr<IOBuffer> buf,
|
|
int buf_len) {
|
|
int res = file_.WriteAtCurrentPosNoBestEffort(buf->data(), buf_len);
|
|
if (res == -1)
|
|
return IOResult::FromOSError(errno);
|
|
|
|
return IOResult(res, 0);
|
|
}
|
|
|
|
} // namespace net
|