Function IsPossiblyRtmp

src/brpc/policy/rtmp_protocol.cpp:3415–3424

// ============== protocol handlers =============

inline ParseResult IsPossiblyRtmp(const butil::IOBuf* source) {
    const char* p = (const char*)source->fetch1();
    if (p == NULL) {
        return MakeParseError(PARSE_ERROR_NOT_ENOUGH_DATA);
    }
    if (*p != RTMP_DEFAULT_VERSION) {
        return MakeParseError(PARSE_ERROR_TRY_OTHERS);
    }
    return MakeMessage(NULL);
}

ParseResult ParseRtmpMessage(butil::IOBuf* source, Socket *socket, bool read_eof,
                             const void* arg) {