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f0eb9b202f
After some benchmarking, it turns out that std::vector<uint8_t> is about 160 times slower than malloc(). malloc() is faster than "new uint8_t[]" too. Get rid of std:;vector<uint8_t> and replace it with a lightweight wrapper around malloc(), free(), and memcpy(). ByteVector has helpful methods for the common case of moving data to and from ioctl calls that use a fixed-length header placed contiguously with a variable-length input/output buffer. Data bytes are shared between copied ByteVector objects, allowing a large single buffer to be cheaply chopped up into smaller objects without memory copies. ByteVector implements the more useful parts of the std::vector API, so it can replace std::vector objects without needing an awkward adaptor class like Spanner. Signed-off-by: Zygo Blaxell <bees@furryterror.org>