Method AppendServerIdentiy

src/brpc/controller.cpp:407–428

static const char HEX_ALPHA[] = "0123456789ABCDEF";
void Controller::AppendServerIdentiy() {
    if (_server == NULL) {
        return;
    }
    if (is_security_mode()) {
        _error_text.reserve(_error_text.size() + MD5_DIGEST_LENGTH * 2 + 2);
        _error_text.push_back('[');
        char ipbuf[64];
        int len = snprintf(ipbuf, sizeof(ipbuf), "%s:%d",
                           butil::my_ip_cstr(), _server->listen_address().port);
        unsigned char digest[MD5_DIGEST_LENGTH];
        MD5((const unsigned char*)ipbuf, len, digest);
        for (size_t i = 0; i < sizeof(digest); ++i) {
            _error_text.push_back(HEX_ALPHA[digest[i] & 0xF]);
            _error_text.push_back(HEX_ALPHA[digest[i] >> 4]);
        }
        _error_text.push_back(']');
    } else {
        butil::string_appendf(&_error_text, "[%s:%d]",
                             butil::my_ip_cstr(), _server->listen_address().port);
    }
}

inline void UpdateResponseHeader(Controller* cntl) {
    DCHECK(cntl->Failed());