AuroraRuntime/Include/Aurora/IO/IStreamReader.hpp
2021-06-27 22:25:29 +01:00

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/***
Copyright (C) 2021 J Reece Wilson (a/k/a "Reece"). All rights reserved.
File: IStreamReader.hpp
Date: 2021-6-10
Author: Reece
***/
#pragma once
namespace Aurora::IO
{
class IStreamReader
{
public:
virtual EStreamError Open() = 0;
virtual EStreamError Read(void *buffer, AuUInt32 &len) = 0;
virtual void Close() = 0;
EStreamError ReadAll(AuList<AuUInt8> &buffer)
{
static const int kBufferSize = 2048;
AuUInt8 temp[kBufferSize];
AuUInt32 len = kBufferSize;
EStreamError ret = EStreamError::eErrorEndOfStream;
while ((ret = Read(temp, len)) == EStreamError::eErrorNone)
{
if (len == 0) break;
buffer.insert(buffer.end(), temp, temp + len);
if (len != kBufferSize) break;
}
return ret;
}
};
}