mirror of
https://github.com/klzgrad/naiveproxy.git
synced 2024-12-01 01:36:09 +03:00
91 lines
3.0 KiB
C++
91 lines
3.0 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.
|
|
|
|
#ifndef NET_BASE_ELEMENTS_UPLOAD_DATA_STREAM_H_
|
|
#define NET_BASE_ELEMENTS_UPLOAD_DATA_STREAM_H_
|
|
|
|
#include <stddef.h>
|
|
#include <stdint.h>
|
|
|
|
#include <memory>
|
|
#include <vector>
|
|
|
|
#include "base/macros.h"
|
|
#include "base/memory/ref_counted.h"
|
|
#include "base/memory/weak_ptr.h"
|
|
#include "net/base/net_export.h"
|
|
#include "net/base/upload_data_stream.h"
|
|
|
|
namespace net {
|
|
|
|
class DrainableIOBuffer;
|
|
class IOBuffer;
|
|
class UploadElementReader;
|
|
|
|
// A non-chunked UploadDataStream consisting of one or more UploadElements.
|
|
class NET_EXPORT ElementsUploadDataStream : public UploadDataStream {
|
|
public:
|
|
ElementsUploadDataStream(
|
|
std::vector<std::unique_ptr<UploadElementReader>> element_readers,
|
|
int64_t identifier);
|
|
|
|
~ElementsUploadDataStream() override;
|
|
|
|
// Creates an ElementsUploadDataStream with a single reader. Returns a
|
|
// std::unique_ptr<UploadDataStream> for ease of use.
|
|
static std::unique_ptr<UploadDataStream> CreateWithReader(
|
|
std::unique_ptr<UploadElementReader> reader,
|
|
int64_t identifier);
|
|
|
|
private:
|
|
// UploadDataStream implementation.
|
|
bool IsInMemory() const override;
|
|
const std::vector<std::unique_ptr<UploadElementReader>>* GetElementReaders()
|
|
const override;
|
|
int InitInternal(const NetLogWithSource& net_log) override;
|
|
int ReadInternal(IOBuffer* buf, int buf_len) override;
|
|
void ResetInternal() override;
|
|
|
|
// Runs Init() for all element readers.
|
|
// This method is used to implement InitInternal().
|
|
int InitElements(size_t start_index);
|
|
|
|
// Called when the |index| element finishes initialization. If it succeeded,
|
|
// continues with the |index + 1| element. Calls OnInitCompleted on error or
|
|
// when all elements have been initialized.
|
|
void OnInitElementCompleted(size_t index, int result);
|
|
|
|
// Reads data from the element readers.
|
|
// This method is used to implement Read().
|
|
int ReadElements(const scoped_refptr<DrainableIOBuffer>& buf);
|
|
|
|
// Resumes pending read and calls OnReadCompleted with a result when
|
|
// necessary.
|
|
void OnReadElementCompleted(const scoped_refptr<DrainableIOBuffer>& buf,
|
|
int result);
|
|
|
|
// Processes result of UploadElementReader::Read(). If |result| indicates
|
|
// success, updates |buf|'s offset. Otherwise, sets |read_failed_| to true.
|
|
void ProcessReadResult(const scoped_refptr<DrainableIOBuffer>& buf,
|
|
int result);
|
|
|
|
std::vector<std::unique_ptr<UploadElementReader>> element_readers_;
|
|
|
|
// Index of the current upload element (i.e. the element currently being
|
|
// read). The index is used as a cursor to iterate over elements in
|
|
// |upload_data_|.
|
|
size_t element_index_;
|
|
|
|
// Set to actual error if read fails, otherwise set to net::OK.
|
|
int read_error_;
|
|
|
|
base::WeakPtrFactory<ElementsUploadDataStream> weak_ptr_factory_;
|
|
|
|
DISALLOW_COPY_AND_ASSIGN(ElementsUploadDataStream);
|
|
};
|
|
|
|
} // namespace net
|
|
|
|
#endif // NET_BASE_ELEMENTS_UPLOAD_DATA_STREAM_H_
|