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0d0af39b44
byuu says: This is a few days old, but oh well. This WIP changes nall,hiro,ruby,icarus back to (u)int(8,16,32,64)_t. I'm slowly pushing for (u)int(8,16,32,64) to use my custom Integer<Size>/Natural<Size> classes instead. But it's going to be one hell of a struggle to get that into higan.
41 lines
1.1 KiB
C++
41 lines
1.1 KiB
C++
#pragma once
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#include <nall/filemap.hpp>
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namespace nall {
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struct mmapstream : stream {
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using stream::read;
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using stream::write;
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mmapstream(const string& filename) {
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pmmap.open(filename, filemap::mode::readwrite);
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pwritable = pmmap.open();
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if(!pwritable) pmmap.open(filename, filemap::mode::read);
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pdata = pmmap.data();
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poffset = 0;
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}
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auto seekable() const -> bool { return true; }
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auto readable() const -> bool { return true; }
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auto writable() const -> bool { return pwritable; }
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auto randomaccess() const -> bool { return true; }
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auto size() const -> uint { return pmmap.size(); }
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auto offset() const -> uint { return poffset; }
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auto seek(uint offset) const -> void { poffset = offset; }
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auto read() const -> uint8_t { return pdata[poffset++]; }
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auto write(uint8_t data) const -> void { pdata[poffset++] = data; }
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auto read(uint offset) const -> uint8_t { return pdata[offset]; }
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auto write(uint offset, uint8_t data) const -> void { pdata[offset] = data; }
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private:
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mutable filemap pmmap;
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mutable uint8_t* pdata = nullptr;
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mutable uint poffset = 0;
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mutable bool pwritable = false;
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};
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}
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