Function _clientAsyncReplyBufferReserve

src/networking.cpp:339–347

 * -------------------------------------------------------------------------- */

void _clientAsyncReplyBufferReserve(client *c, size_t len) {
    if (c->replyAsync != nullptr)
        return;
    size_t newsize = std::max(len, (size_t)PROTO_ASYNC_REPLY_CHUNK_BYTES);
    clientReplyBlock *replyNew = (clientReplyBlock*)zmalloc(sizeof(clientReplyBlock) + newsize);
    replyNew->size = zmalloc_usable_size(replyNew) - sizeof(clientReplyBlock);
    replyNew->used = 0;
    c->replyAsync = replyNew;
}

/* Attempts to add the reply to the static buffer in the client struct.
 * Returns C_ERR if the buffer is full, or the reply list is not empty,