47 lines
1.2 KiB
C++
47 lines
1.2 KiB
C++
/***
|
|
Copyright (C) 2021 J Reece Wilson (a/k/a "Reece"). All rights reserved.
|
|
|
|
File: BlobReader.hpp
|
|
Date: 2021-6-10
|
|
Author: Reece
|
|
***/
|
|
#pragma once
|
|
|
|
namespace Aurora::IO::Buffered
|
|
{
|
|
class BlobReader : public IStreamReader
|
|
{
|
|
public:
|
|
AU_NO_COPY_NO_MOVE(BlobReader)
|
|
|
|
BlobReader(const Memory::ByteBuffer &buffer) : buffer_(buffer) {}
|
|
BlobReader() {}
|
|
~BlobReader() {}
|
|
|
|
virtual EStreamError Open() override
|
|
{
|
|
return EStreamError::eErrorNone;
|
|
}
|
|
|
|
virtual EStreamError Read(const Memory::MemoryViewStreamWrite ¶mters) override
|
|
{
|
|
auto realEndOffset = AuMin(buffer_.size() - offset_, paramters.length);
|
|
if (realEndOffset == 0) return EStreamError::eErrorEndOfStream;
|
|
|
|
paramters.outVariable = realEndOffset;
|
|
AuMemcpy(paramters.ptr, buffer_.data() + offset_, realEndOffset);
|
|
offset_ += realEndOffset;
|
|
|
|
return EStreamError::eErrorNone;
|
|
}
|
|
|
|
virtual void Close() override
|
|
{
|
|
buffer_.clear();
|
|
}
|
|
|
|
private:
|
|
Memory::ByteBuffer buffer_;
|
|
AuUInt32 offset_ {};
|
|
};
|
|
} |