MultipartStream.h

/****
 * Sming Framework Project - Open Source framework for high efficiency native ESP8266 development.
 * Created 2015 by Skurydin Alexey
 * http://github.com/SmingHub/Sming
 * All files of the Sming Core are provided under the LGPL v3 license.
 *
 * MultipartStream.h
 *
 * @author Slavey Karadzhov <slaff@attachix.com>
 *
 ****/

#ifndef _SMING_CORE_DATA_STREAM_MULTIPART_STREAM_H_
#define _SMING_CORE_DATA_STREAM_MULTIPART_STREAM_H_

#include "MultiStream.h"
#include "Delegate.h"
#include "Network/Http/HttpHeaders.h"

typedef struct {
    HttpHeaders* headers = nullptr;
    IDataSourceStream* stream = nullptr;
} HttpPartResult;

typedef Delegate<HttpPartResult()> HttpPartProducerDelegate;

class MultipartStream : public MultiStream
{
public:
    MultipartStream(HttpPartProducerDelegate delegate) : producer(delegate)
    {
    }

    const char* getBoundary();

protected:
    IDataSourceStream* getNextStream() override
    {
        result = producer();
        return result.stream;
    }

    void onNextStream() override;
    bool onCompleted() override;

private:
    HttpPartProducerDelegate producer;
    HttpPartResult result;

    char boundary[16] = {0};
};

#endif /* _SMING_CORE_DATA_STREAM_MULTIPART_STREAM_H_ */