AuroraRuntime/Source/IO/TLS/TLSProtocolSend.cpp

/***
    Copyright (C) 2022 J Reece Wilson (a/k/a "Reece"). All rights reserved.

    File: TLSProtocolSend.cpp
    Date: 2022-8-24
    Author: Reece
***/
#include "TLS.hpp"
#include "TLSContext.hpp"

namespace Aurora::IO::TLS
{
    TLSProtocolSend::TLSProtocolSend(TLSContext *pParent) :
        pParent_(pParent)
    {
    }

    bool TLSProtocolSend::OnDataAvailable(const AuSPtr<Memory::ByteBuffer> &pReadInByteBuffer,
                                          const AuSPtr<Memory::ByteBuffer> &pWriteOutByteBuffer)
    {
        if (!this->pParent_->bIsAlive)
        {
            return true;
        }

        if (pReadInByteBuffer->writePtr == pReadInByteBuffer->readPtr)
        {
            return true;
        }

        while (pReadInByteBuffer->writePtr != pReadInByteBuffer->readPtr)
        {
            auto pDest = pReadInByteBuffer->GetNextLinearRead();
            const AuUInt8 *pBase { pDest.ToPointer() };
            AuUInt uCount { pDest.length };

            if (!uCount)
            {
                return true;
            }

            int iRet = ::mbedtls_ssl_write(&this->pParent_->ssl,
                                          pBase,
                                          uCount);

            if ((iRet == MBEDTLS_ERR_SSL_WANT_READ) ||
                (iRet == MBEDTLS_ERR_SSL_WANT_WRITE))
            {
                return true;
            }

            if (iRet < 0)
            {
                this->pParent_->iFatalError = iRet;
                SysPushErrorNet("{}", iRet);
                this->pParent_->OnFatal();
                return false;
            }

            pReadInByteBuffer->readPtr += iRet;
        }

        return true;
    }
}