Confusing event loop

[Ivan-Igorevich]

Hello, thanks for your handler, but it works confusing, while I try to send raw bytes in messages. For example I read a file, split it to 32Kb packages, and publish to my queue. But if I publish, let's say three packages, they must be sent as (32K,32K,15K) but could be sent as (32K,15K,32K). I can understand, that the AMQP-CPP is completely asynchronous, but I can't understand where to make my workaround, to send packages in the correct order... Can you, please, help me with that? Thanks in advance.