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feat(server): Buffered journal serializers (#619)

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Vladislav 2022-12-30 16:18:37 +03:00 • committed by GitHub
parent f204f1c670
commit 7788600c9b
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13 changed files with 240 additions and 189 deletions
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19
src/server/serializer_commons.h
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@ -30,12 +30,27 @@ using nonstd::make_unexpected;
dest = std::move(exp_res.value()); \
}
// Represents meta information for an encoded packed unsigned integer.
struct PackedUIntMeta {
// Initialize by first byte in sequence.
PackedUIntMeta(uint8_t first_byte) : first_byte{first_byte} {
}
// Get underlying RDB type.
int Type() const;
// Get additional size in bytes (excluding first one).
unsigned ByteSize() const;
uint8_t first_byte;
};
// Saves an packed unsigned integer. The first two bits in the first byte are used to
// hold the encoding type. See the RDB_* definitions for more information
// on the types of encoding. buf must be at least 9 bytes.
unsigned WritePackedUInt(uint64_t value, uint8_t* buf);
unsigned WritePackedUInt(uint64_t value, io::MutableBytes dest);
// Deserialize packed unsigned integer.
io::Result<uint64_t> ReadPackedUInt(io::Source* source);
io::Result<uint64_t> ReadPackedUInt(PackedUIntMeta meta, io::Bytes source);
} // namespace dfly