AuroraRuntime/Source/Compression/Compressors/DeflateDecompressor.hpp
J Reece Wilson fd0c5b51b2 Further Linux support
[+] Begin work on IO futexes for io release on process/thread exit
[+] Linux ::readdir iteration
[+] AuConsole buffering API
[*] Fix sleep as to not get interrupted by signals
[*] Switch the type of FS lock used under Linux
[*] Linux: Use new IPCHandle encoding scheme
[*] Fix undefined behaviour: unintialized timeout values (AuLoop/Linux)
[*] Fix undefined behaviour: ConsoleTTY clear line was called of a color of a random value on stack
[-] Remainings of std dir iterator
[*] Fix pthread_kill (aka send signal to pthread handle) always kills process. This is what you expect bc signal handler inheritance.
[*] Reformat the build Aurora.json file
[+] Added clang warning ignores to the build file
[*] Fix: UNIX need to use STDOUT_FILENO. Was using CRT handle in place of fd by mistake.
[+] Linux implementation for IO yield (AuIO::IOYield() - UNIX::LinuxOverlappedYield())
[*] Fix: Linux async end of stream processing. res 0 = zero bytes consumed. <= was detecting this as an error of code 0. Should succeed with zero bytes.
[+] Linux LoopQueue missing epilogue hook for the IO processor
[*] Various refactors and minor bug fixes
[*] Linux fix: Handle pipe EOS as zero
[*] Linux fix: thread termination via a user signal of 77. Need a force terminate.
[*] IPC handle: fix improper int to bool cast in the header setup within ToString
[*] Linux fix: HWInfo CPU topology regression
[-] Linux fix: remove SIGABRT handler
[*] Missing override in compression, exit, and consoletty headers.
[+] Unix Syslog logger backend
2022-08-02 05:52:57 +01:00

115 lines
2.9 KiB
C++

/***
Copyright (C) 2022 J Reece Wilson (a/k/a "Reece"). All rights reserved.
File: DeflateDecompressor.hpp
Date: 2022-2-15
Author: Reece
***/
#pragma once
#include "zlib.h"
namespace Aurora::Compression
{
struct ZIPInflate : public BaseStream
{
DecompressInfo meta;
ZIPInflate(const DecompressInfo &meta, bool hasBits, AuInt8 bits) : meta(meta), BaseStream(meta.internalStreamSize), bits_(bits), hasBits_(hasBits)
{}
~ZIPInflate()
{
if (this->init_)
{
inflateEnd(&this->ctx_);
}
}
bool Init(const AuSPtr<IO::IStreamReader> &reader) override
{
int ret;
this->reader_ = reader;
if (this->hasBits_)
{
ret = inflateInit2(&this->ctx_, this->bits_);
}
else
{
ret = inflateInit(&this->ctx_);
}
if (ret < Z_OK)
{
SysPushErrorMem("Error: {}", zError(ret));
return false;
}
this->init_ = true;
if (!this->_outbuffer)
{
SysPushErrorMem();
return false;
}
this->SetArray(this->din_);
return true;
}
AuStreamReadWrittenPair_t Ingest_s(AuUInt32 input) override
{
AuUInt32 done {}, read {};
while (read < input)
{
read += IngestForInPointer<Bytef, uInt>(this->reader_, this->ctx_.next_in, this->ctx_.avail_in, input - read);
if (!this->ctx_.avail_in)
{
return {read, done};
}
do
{
this->ctx_.avail_out = AuArraySize(this->dout_);
this->ctx_.next_out = this->dout_;
if (!this->ctx_.avail_out)
{
break;
}
auto ret = inflate(&this->ctx_, Z_NO_FLUSH);
if (ret < Z_OK)
{
SysPushErrorIO("Error: {}", zError(ret));
return AuMakePair(read, 0);
}
auto have = AuArraySize(this->dout_) - this->ctx_.avail_out;
done += have;
if (!Write(reinterpret_cast<const AuUInt8 *>(this->dout_),
have))
{
return {};
}
}
while (this->ctx_.avail_out == 0);
}
return {read, done};
}
private:
AuSPtr<IO::IStreamReader> reader_;
z_stream ctx_ {};
bool init_ {};
bool hasBits_;
AuInt8 bits_;
unsigned char din_[kChunkSize];
unsigned char dout_[kChunkSize];
};
}