mirror of https://github.com/AxioDL/nod.git
69 lines
1.7 KiB
C++
69 lines
1.7 KiB
C++
#pragma once
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#include <memory>
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#include <cstdlib>
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#include <cstdio>
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#include <cstdint>
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#if NOD_ATHENA
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#include <athena/IStreamReader.hpp>
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#include <athena/IStreamWriter.hpp>
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#endif
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namespace nod {
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struct IReadStream {
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virtual ~IReadStream() = default;
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virtual uint64_t read(void* buf, uint64_t length) = 0;
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virtual void seek(int64_t offset, int whence = SEEK_SET) = 0;
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virtual uint64_t position() const = 0;
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};
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struct IWriteStream {
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virtual ~IWriteStream() = default;
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virtual uint64_t write(const void* buf, uint64_t length) = 0;
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};
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class IDiscIO {
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public:
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virtual ~IDiscIO() = default;
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virtual std::unique_ptr<IReadStream> beginReadStream(uint64_t offset = 0) const = 0;
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virtual std::unique_ptr<IWriteStream> beginWriteStream(uint64_t offset = 0) const = 0;
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};
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struct IPartReadStream : IReadStream {
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virtual ~IPartReadStream() = default;
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};
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struct IPartWriteStream : IWriteStream {
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virtual ~IPartWriteStream() = default;
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virtual void close() = 0;
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virtual uint64_t position() const = 0;
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};
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#if NOD_ATHENA
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class AthenaPartReadStream : public athena::io::IStreamReader {
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std::unique_ptr<IPartReadStream> m_rs;
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public:
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AthenaPartReadStream(std::unique_ptr<IPartReadStream>&& rs) : m_rs(std::move(rs)) {}
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inline void seek(atInt64 off, athena::SeekOrigin origin) {
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if (origin == athena::Begin)
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m_rs->seek(off, SEEK_SET);
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else if (origin == athena::Current)
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m_rs->seek(off, SEEK_CUR);
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}
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inline atUint64 position() const { return m_rs->position(); }
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inline atUint64 length() const { return 0; }
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inline atUint64 readUBytesToBuf(void* buf, atUint64 sz) {
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m_rs->read(buf, sz);
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return sz;
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}
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};
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#endif
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} // namespace nod
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