Reece
5bc1985eca
[*] Added const modifier to cpuid functions [*] Added OnExit to planned API interface [*] BlobReader now holds onto a handle of a ByteBuffer, allowing for shared usage -> aiding in the mitigation of allocations/second and needless heavy copy of objects
52 lines
1.5 KiB
C++
52 lines
1.5 KiB
C++
/***
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Copyright (C) 2021 J Reece Wilson (a/k/a "Reece"). All rights reserved.
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File: BlobReader.hpp
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Date: 2021-6-10
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Author: Reece
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***/
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#pragma once
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namespace Aurora::IO::Buffered
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{
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class BlobReader : public IStreamReader
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{
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public:
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AU_NO_COPY(BlobReader)
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BlobReader(const AuSPtr<Memory::ByteBuffer> &buffer) : buffer_(buffer) {}
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BlobReader(Memory::ByteBuffer &&buffer) : buffer_(AuMakeShared<Memory::ByteBuffer>(buffer)) {}
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BlobReader(const Memory::ByteBuffer &buffer) : buffer_(AuMakeShared<Memory::ByteBuffer>(buffer)) {}
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BlobReader() {}
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~BlobReader() {}
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virtual EStreamError Open() override
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{
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if (!buffer_) return EStreamError::eErrorStreamNotOpen;
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if (!buffer_->operator bool()) return EStreamError::eErrorStreamNotOpen;
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return EStreamError::eErrorNone;
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}
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virtual EStreamError Read(const Memory::MemoryViewStreamWrite ¶mters) override
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{
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auto realEndOffset = AuMin(buffer_->size() - offset_, paramters.length);
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if (realEndOffset == 0) return EStreamError::eErrorEndOfStream;
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paramters.outVariable = realEndOffset;
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AuMemcpy(paramters.ptr, buffer_->data() + offset_, realEndOffset);
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offset_ += realEndOffset;
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return EStreamError::eErrorNone;
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}
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virtual void Close() override
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{
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buffer_->clear();
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}
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private:
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AuSPtr<Memory::ByteBuffer> buffer_;
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AuUInt32 offset_ {};
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};
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} |