43 lines
1.1 KiB
C++
43 lines
1.1 KiB
C++
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/***
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Copyright (C) 2022 J Reece Wilson (a/k/a "Reece"). All rights reserved.
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File: IOPipeRequest.hpp
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Date: 2022-6-20
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Author: Reece
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***/
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#pragma once
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namespace Aurora::IO
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{
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struct IIOPipeEventListener;
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struct IOPipeRequest
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{
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/**
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* @brief Amount of bytes to transfer or zero if run until EoS/EoF
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*/
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AuUInt32 lengthOrZero {};
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/**
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* @brief true if the underlying stream uses relative stream positions
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* (IE: a network or pipe stream that cannot seek backwards and fowards)
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* (Inversely, file devices and similar IO subsystems use IO packets with absolute offsets)
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*/
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bool isStream {false};
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/**
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* @brief internal frame size or zero if fallback
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*/
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AuUInt32 pageLengthOrZero {};
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/**
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* @brief event listener
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*/
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AuSPtr<IIOPipeEventListener> listener;
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/**
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* @brief Used as the buffer size for streams of page length 0
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*/
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AuUInt32 fallbackPageSize {4096 * 50};
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};
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}
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