rhubarb-lip-sync/rhubarb/lib/webrtc-8d2248ff/webrtc/base/multipart.h

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2016-06-21 20:13:05 +00:00
/*
* Copyright 2004 The WebRTC Project Authors. All rights reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef WEBRTC_BASE_MULTIPART_H__
#define WEBRTC_BASE_MULTIPART_H__
#include <string>
#include <vector>
#include "webrtc/base/constructormagic.h"
#include "webrtc/base/sigslot.h"
#include "webrtc/base/stream.h"
namespace rtc {
///////////////////////////////////////////////////////////////////////////////
// MultipartStream - Implements an RFC2046 multipart stream by concatenating
// the supplied parts together, and adding the correct boundaries.
///////////////////////////////////////////////////////////////////////////////
class MultipartStream : public StreamInterface, public sigslot::has_slots<> {
public:
MultipartStream(const std::string& type, const std::string& boundary);
~MultipartStream() override;
void GetContentType(std::string* content_type);
// Note: If content_disposition and/or content_type are the empty string,
// they will be omitted.
bool AddPart(StreamInterface* data_stream,
const std::string& content_disposition,
const std::string& content_type);
bool AddPart(const std::string& data,
const std::string& content_disposition,
const std::string& content_type);
void EndParts();
// Calculates the size of a part before actually adding the part.
size_t GetPartSize(const std::string& data,
const std::string& content_disposition,
const std::string& content_type) const;
size_t GetEndPartSize() const;
// StreamInterface
StreamState GetState() const override;
StreamResult Read(void* buffer,
size_t buffer_len,
size_t* read,
int* error) override;
StreamResult Write(const void* data,
size_t data_len,
size_t* written,
int* error) override;
void Close() override;
bool SetPosition(size_t position) override;
bool GetPosition(size_t* position) const override;
bool GetSize(size_t* size) const override;
bool GetAvailable(size_t* size) const override;
private:
typedef std::vector<StreamInterface*> PartList;
// StreamInterface Slots
void OnEvent(StreamInterface* stream, int events, int error);
std::string type_, boundary_;
PartList parts_;
bool adding_;
size_t current_; // The index into parts_ of the current read position.
size_t position_; // The current read position in bytes.
RTC_DISALLOW_COPY_AND_ASSIGN(MultipartStream);
};
} // namespace rtc
#endif // WEBRTC_BASE_MULTIPART_H__