Method addData

src/replication.cpp:1073–1092

    }

    void addData(const char *data, unsigned long size) {
        if (reply != nullptr && (size + reply->used) > reply->size)
            flushData();

        if (reply != nullptr && reply->size < size) {
            serverAssert(reply->used == 0); // flush should have happened
            zfree(reply);
            reply = nullptr;
        }
        
        if (reply == nullptr) {
            reply = (clientReplyBlock*)zmalloc(sizeof(clientReplyBlock) + std::max(size, (unsigned long)(PROTO_REPLY_CHUNK_BYTES*64)));
            reply->size = zmalloc_usable_size(reply) - sizeof(clientReplyBlock);
            reply->used = 0;
        }

        serverAssert((reply->size - reply->used) >= size);
        memcpy(reply->buf() + reply->used, data, size);
        reply->used += size;
    }

    void addLongLongWithPrefix(long long val, char prefix) {
        char buf[128];