Introduce four classes that bridge IOBuf and the standard iostream
hierarchy, enabling parsers and serializers that take std::istream& /
std::ostream& (e.g. nlohmann::json) to read from and write to IOBuf
directly without an intermediate string copy:
- IOBufAsInputStreamBuf : read-only streambuf over IOBuf blocks
- IOBufInputStream : std::istream view over IOBuf
- IOBufAsOutputStreamBuf : append-only streambuf, reusing
IOBufAsZeroCopyOutputStream's TLS block pool
- IOBufOutputStream : std::ostream view over IOBuf
Bright Chen